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To Build Handbook

Plan, Design, Build, Interior & Exterior Décor

Celebrating 60 years of innovative solutions #AZA18 We the City A Fair View Dry Walling Completes the Picture

issue 23 | March – June 2018

Unpacking Water Woes

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foreword Taking on a build project is a mammoth task for most. There are a vast amount of disciplines that need to be consulted to reach the ultimate outcome. From architects to contractors, interior designers to artisans, every person plays a vital part in creating the dream build. The selection of these different disciplines can be a daunting task. Get it right and your project swims along effectively, get it wrong and you’ll be grey a lot quicker than anticipated!

Paige Waplington, CEO of IID, owner and Creative Director of Redesign Interiors and Creative Partner at OhSoSa

Stepping in here is the IID, the African Institute of the Interior Design Professions. This body is the ideal place to start your search to find the right person for the job. The IID list of interior design professionals is the best in the industry. All members are qualified and experienced, and go through a detailed process to be accepted as a member, so more than half the selection process has already been completed for you! Selecting the right person for the job is extremely important to achieve your desired outcome and by using IID members you will have already refined your search. Benefits of using interior designer registered with the IID include: • You are choosing an interior designer regulated by a professional body. This means they have a code of ethics to adhere to and they have the support needed to be the best they can be. • An interior designer belonging to the IID has already proved to have the understanding and experience to deal with your project. • An IID member has access to relevant contracts to the building industry. This means you have the backing and protection from the IID too. If you are thinking of your next project, start talking to our members before you break ground. They will be an excellent guide and will help you develop your ideas.

About the IID

The African Institute of the Interior Design Professions is the only professional body representing the interior design industry in South Africa. It operates nationally with representation in Gauteng, KwaZulu-Natal and the Eastern and Western Cape. The Institute is dedicated to establishing, promoting and maintaining expertise, professionalism, sound business practice and high standards throughout the interior design industry. Its mission is to promote excellence in the practice of interior design; to improve the profession; to protect the rights of its members, to grow the organisation and to expand the contribution of the profession to society. The African Institute of the Interior Design Professions (IID) E W


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Media XPOSE excellence in exposure Plan, Design, Build, Interior & Exterior Décor


Tel: +27 21 424 3625 | Fax: +27 86 516 7277 PO Box 15165, Vlaeberg, 8018


Affiliate Member

Publishing Director Elroy van Heerden Editor Gareth Griffiths SUB EDITOR Tessa O’Hara Marketing & Communications Manager: Sarina Afonso

To Build Handbook

Plan, Design, Build, Interior & Exterior Décor

Celebrating 60 years of innovative solutions #AZA18 We the City A Fair View Dry Walling Completes the Picture

issue 23 | March – June 2018

Unpacking Water Woes

Issue 23 • Mar – Jun 2018

Editorial Contributors Advocate Bryan Hack Cobus Lourens Crispin Inglis Des Schnetler Gareth Griffiths Imaging James Calmeyer Obert Chakarisa Stephanie Forbes DESIGN & LAYOUT CDC Design ADVERTISING SALES Rene van Heerden Gift Bouwer Content manager Melanie Taylor Financial director Shaun Mays Distribution and subscriptions Maurisha Niewenhuys

Cover Art: G Studio | Branding Agency

Disclaimer: The views expressed in this publication are not necessarily those of the publisher or its agents. While every effort has been made to ensure the accuracy of the information published, the publisher does not accept responsibility for any error or omission contained herein. Consequently, no person connected with the publication of this journal will be liable for any loss or damage sustained by any reader as a result of action following statements or opinions expressed herein. The publisher will give consideration to all material submitted, but does not take responsibility for damage or its safe return.


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contents issue23

March-June 2018 Foreword 2 Editor’s Letter 10 Message from SAIA 12 Cover Story: De Leeuw Group 14-16 Lead Stories 18-23 26-29 News & Views Editor’s Choice 32-33 Out & About 154-155 152 Student Designs Notes Page 157 Advertisers’ Index 158


Architects 36 Construction & Contractors 44 Construction, Health & Safety 46 48 Interior & Exterior Design & Décor Developers 52 Engineers 56 Landscaping & Landscape Architects 58 Legal 65 Quantity Surveyors 67

BUILDING SYSTEMS Automation 73 Bathrooms 76 78 Ceilings & Partitions

Doors & Windows 82 Electrical 87 Floors 89 Kitchens 91 Lighting 94 Roofing 97 Walls & Cladding 101

MATERIALS Adhesives 104 113 Brick & Paving Cement & Concrete 118 Insulation 120 Timber & Decking 122

SERVICES Air Conditioning 128 Furniture 130 Ground Engineering 132 Plumbing & Reticulation 134

GREENBUILDING HVAC 140 Materials 142 Renewables 144 Energy 146 Project 148 Green Awards 150


130 101


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contents issue23 March-June 2018

De Leeuw Group.................................... 14-16

Energy efficient windows.............................86

Convention centre extension............... 18-20

Gen sets power gas ambitions...................87

Tackling water woes............................... 22-23

Resin floor finishes for food producer.........89

News and Views...................................... 26-29

Looking back but moving forward............91

Editor’s Choice........................................ 32-33

Trendy lighting for chic places.............. 94-95

Profile: Green Block Architects............. 36-37

Roof trusses............................................... 97-98

#AZA18: WeTheCity......................................39

Resurrecting a disused bridge.......... 110-111

Project: Rubela Park............................... 40-41

Inspired by Earth Charter...........................113

Construction major wins big.................. 44-45 Association for all..........................................46

Pavers for water wise gardens..................115 Cement major benefits architecture awards..........................................................118

Profile: Design Indaba Speaker..................48

Retrofit guide – making it easy.................120

Interiors offer choice.....................................50

Project: House Memel................................122

Bringing nature into design..........................52

Chilling at the Waterfront..........................128

Innovations keep centres afloat...............53

Trending in furniture 2018...........................130

Looking to the future.............................. 54-55

Case study: Stabilisation at the mine......132

Cable stay bridge in Sandton.....................56

Solving subsoil drainage problems...........134

Landscape time challenge........................58

Banking on keeping cool..........................140

A fair view.......................................................65

Recycled polystyrene screed solution................................................ 142 - 143

Debating key global issues..........................67 Six decades later - still expanding..............69 Power management challenges......... 73-74 First in sintered stone surfaces.....................76

Local is lekker - Biogas................................144 Robben Island embraces PV....................146 The race to zero.................................. 148-149

Dry walling completes the picture....... 78-80

UCT triumphs in environmental innovation again................................. 150-151

Improving productivity.................................82

Award winning student on to finals..........152

Fenestration renovation......................... 84-85

CTICC 2 grand opening.................. 154 - 155


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ed’s letter In a rapidly growing digital economy it is fascinating to be at the receiving end of news about technical innovations in the built environment. In a futurefacing article written for us by Crispin Inglis of Property Fox, we read how the technological wave will hit the ordinary home by the 2020s, making obsolete many features we currently take for granted, such as the garage for our cars. Of course, several home owners will already have converted such features into home office space! The media has also been affected by the growth of digital read options, so it has been gratifying to see that To Build remains a favourite read for built environment professionals - in hard copy format. Last year, we in fact increased our circulation. Our readers simply love the look and feel of our well-presented handbook format. But it is the obvious fixation with the present and its vexing issues that surely impedes our growth towards a new global age as South Africans. We think of the increasingly confusing political landscape, at the time of writing, the plight of major companies in our industry and the extreme water shortages in the Cape. In this edition we look at some of the issues that affect us as built environment professionals. We also look at some good news that demonstrates that economic growth is still on track in some of our sectors. To Build wishes all our readers an immensely successful year ahead.

Regards Gareth Griffiths


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Voice of SAIA The South African Institute of Architects (SAIA) is very optimistic that 2018 will bring better fortunes for our profession which was thrown into turmoil over the last two or three years because of regulatory challenges manifesting themselves at the South African Council for the Architectural Profession (SACAP). Furthermore, the lack of promulgation of the Identification of Work Framework (IDoW) and Professional Fees Scale only served to worsen the landscape of a profession already enduring high levels of distress. Practice Obert Chakarisa, SAIA Chief Executive Officer

SAIA has made considerable budgetary allocations towards supporting the work of the National Practice Committee which is rolling out the critical Industry Benchmark & Fees Survey and completing the review of the Practice Guidelines manual. The above two work streams will be extremely beneficial in improving the practice environment for practicing architects.

2018 Forecast The political manoeuvres that have taken place in the ruling political party, resulting in the swearing in of the new President, will certainly bring a new ray of hope to the economy. The improvement of investor confidence in our economy will definitely result in more work opportunities being realised by our members, which can only augur well for the profession. We will continue with our advocacy role of ensuring that the practice environment in the profession is made as conducive as possible. South African Institute of Architects T +27 (0)11 782 1315 F +27 (0)11 782 8771 E W


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De Leeuw Group: 60 years of service excellence The De Leeuw Group (DLG), a pioneering international professional practice, turns 60 this year. Over the past six decades the Group has developed a solid reputation in the fields of quantity surveying, value management, project management and property consulting.

Chris de Wet, Group Chairman

A journey of dynamic process

Northwards House (Johannesburg) was built in 1904 and renovated by De Leeuw in the 1970s.


Photos by De Leeuw

Regarded as a local trendsetter in quantity surveying and various other aspects of property development and construction, DLG has an estimated 10 000 completed projects under their belt. They offer clients cost effective, cutting-edge, value managed solutions regardless of project size, value or location. With highly qualified and professional specialists within the Group and with all staff equally committed to research and development, the Group is intent on maintaining its position as preferred service provider to renowned local and international clients.

DLG has remained true to the principles of its founder, Dr De Leeuw, of unflinching integrity, professionalism, dedication to R&D and commitment to impeccable client service. These are the pillars upon which the Group was established and subsequently developed. The Group’s corporate culture also embodies a ‘no compromising on quality’ principle. DLG comprises of an experienced team of exceptionally talented, knowledgeable and dedicated individuals who are comfortable operating internationally. Established in 1958 by a team of young, brilliant quantity surveyors, under Dr De Leeuw’s leadership, DLG was systematically expanded over the ensuing decades. Its first offices were established in Welkom, Cape Town and Pietersburg. With time, the company developed a national grid of offices across South Africa. At its height, DLG boasted over 30 directors in charge of hundreds of ambitious projects across the globe. The De Leeuw Group has received numerous prestigious international awards, bearing testimony to its impressive credentials. The Group is the proud recipient, for example, of numerous PMR Diamond, Gold, Silver and Bronze Arrow Excellence Awards. The Group’s first foreign office was opened in the United Kingdom in the late 1970s followed by Namibia in 1982. The opening of DLG’s Middle East offices in 1999 formed the base of their footprint in the Middle East and North Africa. It also laid the path for further expansion into other countries such as India. To establish what lies behind DLG’s success and staying power, we asked Chris de Wet, Group Chairman, a few questions about the company’s history and corporate culture in general.

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DE LEEUW GROUP COVER STORY Throughout the years we have remained dedicated to ensuring that knowledge and expertise are passed down from our senior directors and personnel to junior employees. do you regard as the “mainWhatfactors and business philosophy

behind your company’s staying power and impressive global expansion?

The De Leeuw Group has always remained adaptable and proactive. For example, we were one of the first firms to use computers and QS software in the local industry. This assisted us in gaining our reputation and attracting more multinational clientele. In-house research and development initiatives such as feasibility studies and cost reports have also kept

us ahead. Throughout the years we have remained dedicated to ensuring that knowledge and expertise are passed down from our senior directors and personnel to junior employees. The sharing of ideas and experience is essential in a business like ours to ensure continuity. Our vast range and diversity of projects also stands us in good stead.

new and interesting developments “haveWhatoccurred in the construction industry

over the past five years, and how did these impact on De Leeuw’s operations and planning?

The recent, more significant involvement of highly specialised subcontractors related to impact on cost, procurement procedures, contractual and payment conditions and construction periods. The management of planning procedures that influence cash flow requires a fresh approach for quantity surveyors and often means a more managerial and strategy-based focus. We are thus constantly upskilling our QS staff through regular seminars and training courses to keep up with industry trends. Value management tools and systems are a big focus for us.

and business modernisation “haveTechnology a big impact on all industries, globally. How do these affect the quantity surveying profession per se?

De Leeuw was one the 1st companies to use a Honeywell computer in SA (1970).

The quantity surveying profession has indeed changed radically since the De Leeuw Group first started. Quantity surveying services that add

Northwards House as renovated by De Leeuw in the 1970s.

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Feather Market Hall in Port Elizabeth, renovated by De Leeuw in the 1970s.

value to the construction industry are extremely compatible with the sophisticated computerised systems which have been and are currently being developed at a tremendous pace. Information flow is readily produced, easily updated and a multitude of alternative presentation formats are available. This provides quick and significant information that can be practically, strategically and cost effectively applied. DLG has also invested heavily in new and better ways of working. Building materials have changed and buildings have become more ‘green’. We have, in more recent years, completed several projects where alternative building materials have been used. Our Windhoek team, for example, erected an entire building out of waste products. The Johannesburg team was recently involved in a housing project where ash waste products where combined with a special polymer to create building bricks. DLG Cape Town was involved in the Estuary Plaza project which has been nominated for a Green Building Council Award. Social transformation and BEE have also gained momentum in the last five years. We are pleased that our in-house affirmative action policies, that commenced long before 1994, have paid off to the extent that we are approaching a point where 40%


Social transformation and BEE have also gained momentum in the last five years. of our offices are now majority black-owned and managed. De Leeuw is looking forward to a long and dynamic future in the construction and building industry and plans on staying at the top of their game through agility and flexibility. In the end, it all comes down to teamwork and transferring skills from one generation to the next without which the past 60 years would not have been possible.

De Leeuw Group W

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Convention centre extension opened CTICC 2, the Cape Town International Convention Centre’s R900-million expansion, has been completed and is open for business. Winner in the Commercial Category of the Steel Awards 2017 by the Southern African Institute of Steel Construction (SAISC), it was first unofficially opened in September 2017 when the huge 21st Annual Congress of the SA Council of Shopping Centres which took place. Ever since the original CTICC opened in 2003, expansion was on the cards as the centre’s growth exceeded expectations. High occupancy and lack of capacity prompted the company’s board to search for expansion sites. Chief Executive Officer of the CTICC, Julie-May Ellingson, said the CTICC is now a fully integrated event venue complex never before seen in Cape Town, which offers clients unparalleled choice and flexibility. ‘What are the benefits of this extra space? Essentially, two things: greater capacity and greater flexibility. We can now host very large events, such as the upcoming 15 000-delegate World Ophthalmology Congress, across the entire complex. Cape Town would never have won this bid, if it wasn’t for the CTICC’s expansion. And we can host multiple large events across both venues simultaneously, which we couldn’t do before. Put simply, we can now welcome more events and more people in more ways,’ explains Ellingson.

Technology employed CTICC East is an extension to the very successful Cape Town International Convention Centre. It comprises two convention halls of approximately 5 000m2 each, a larger concourse area as well as smaller meeting rooms. Three distinct areas of construction technology were described by the SAISC: a) The support structure for the second floor hall, which is provided with only four internal support points for the 5 000m2 floor. In addition to dead loads, this steelwork carries a design live load of 750kg/m2 above as well as exhibition hanging loads and movable wall elements below. A system


of deep primary and secondary girders, and tertiary beams supporting Bond-Dek cladding was selected. b) The roof structure over the upper hall, comprising a column-free space of 5000m2. Due to architectural requirements, only two girders were permitted to span the short direction, with secondary girders spanning the long direction of the hall and rafters above. The depth of the secondary structure was limited to gain as much headroom as possible. The roof structure is also designed to carry significant hanging loads as well as suspended movable walls. c) The concourse and meeting pod structure, comprising a vertical structure for the support of the 22m-high curtain wall, a composite roof structure over the meeting pods and part of the concourse, and a saw-tooth roof structure supporting insulated panels and glazing orientated towards the south. Steelwork was the only practical solution for the large spans carrying very heavy loads on this project, although numerous other options were considered. Universal column sections were used for many of the primary and secondary girders to benefit from the heavy profiles available, while tubular sections were used to achieve the most slender possible sections for the support of glazing elements as well as the sawtooth roof. [Source: SAISC 2017]

Project professional profile Client/Developer: Cape Town International Convention Centre by City of Cape Town, Western Cape Government and SunWest International. Architects: Convention Architects - Makeka Design Lab / SVA International / Van Der Merwe Miszewski Architects JV Structural Engineer: Sutherland QS: Mbatha, Walters & Simpson Main contractor: Aveng Grinaker-LTA Project Manager: Target Projects

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Photos by Donovan Webber and Gareth Griffiths Imaging


At the official opening held in January 2018, Executive Mayor Patricia de Lille said that CTICC 2 boosts Cape Town’s reputation as a globally competitive business events destination and will enhance the socioeconomic benefits the centre produces. De Lille said CTICC 2 provides impetus to Cape Town’s development as the ideas capital of Africa. ‘Cape Town is fast becoming the ideas capital of Africa. Organisations and businesses now choose Cape Town as a place from which to develop their Africa strategies. Many of the CTICC’s flagship events are testimony to Cape Town’s ability to connect people from the tip to the top of Africa,’ she adds.

The City of Cape Town which holds 71.4% of the shares in the CTICC, invested R550 million in the expansion project which acted as catalyst for the continued regeneration of the inner city. The CTICC contributed R193 million to the expansion project. ‘CTICC 2’s construction sustained 1 337 job opportunities of which 75.5% benefited black construction workers and specialists and 7.2% of the manpower on site was female. There were also 11 engineering students working on the project and 10 were black women who are building their careers in the industry,’ Ellingson reports. ‘CTICC 2 adds an additional 31 148m2 to our

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complex, including 10 000m2 of conference and exhibition space, as well as a further 3 000m2 of formal and informal meeting space. These numbers translate to six exhibition halls, four meeting suites, five meeting pod rooms, an executive boardroom, three open-air terraces including an impressive rooftop venue, a coffee shop, and a multi-level parking garage,’ says Ellingson. The centre located opposite and due east of the original convention centre boasts an environmentally sustainable design, high-tech venue control systems, high-calibre IT infrastructure, free public Wi-Fi, three production kitchens to cater for every type of event, and a service tunnel under Heerengracht Avenue connecting CTICC 2 with CTICC1. ‘CTICC 2 is seriously high-tech,’ says Ellingson. ‘The facility is served by 1 792 network points with 100km of CAT6 network cable, an extensive fibre optic network with 1 496 fibre optic points and 28km of fibre, catering for high-speed, high-volume traffic. Wi-Fi connectivity is enabled through a combination of high and standard density points catering for a combined total of 15 000 connections with an internet connectivity uplink of 10 GB/s ensuring sufficient capacity for current and future demands.” The centre will now be further integrated with CTICC 1 to ensure seamless event operations.


‘Phase 2 of the CTICC 2 project is well underway. In the next few months, we will be able to start construction of the sky bridge linking the two buildings across Heerengracht,’ Ellingson confirmed. While Cape Town’s severe drought remains the key talking point in the city, Ellingson explained that the CTICC has implemented several water savings measures to reduce the centre’s water consumption. ‘Events at the CTICC are taking place as usual. Most of our water savings initiatives take place ‘behind the scenes’ and is part of our facilities management operations,’ says Ellingson. The CTICC has been running water conservation initiatives for several years. By the 2015/16 financial year, the centre had already been using 10 million litres less water than it did five years earlier. As the drought intensified the centre also installed storage tanks to capture rain water and increased the grey water storage capacity. Additional augmentation systems are under consideration but the focus remains on minimising water usage wherever possible. Also read: To Build’s Roving Editor at the end of this book.


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Tackling water woes Understanding the current water crisis being experienced in the Western Cape involves a mixed set of both long-term and short-term observations. At the time of writing, the issue is far from over, but the volume of public debate has been intense around this issue. Trying to distil the facts and arguments that are out in public, it seems as if: • The authorities were warned as far back as 2000 concerning the water consumption vector in the Western Cape, backed up by a report presented by the SA Biodiversity Institute in year 2005. • Inadequate planning and implementation of additional bulk collection and storage infrastructure (dams) has occurred, a situation for which City and Provincial officials have blamed on the national water department. • During 2015, when the onset of a drought was proven by our declining rainfall patterns, there was an increase in the use of potable water by consumers as evidenced by a spike in the volume of dam water through treatment plants. • Aggressive public, agriculture and business water usage reduction regulations have only been implemented since late 2017, despite the City being aware of warnings by leading academics in early 2017 that a ‘day zero’ was looking likely in 2018. • The impacts of climate change, accelerated by humankind-induced global warming are causing a sinister change in weather events across the globe. • Political infighting, not only between the different spheres of government but also within the City, has bedevilled a clean and coordinated approach. According to activist group, Ground Up, the City of Cape Town’s population has grown 79% since 1995, from about 2.4 million to an expected 4.3 million in 2018. Over the same period dam storage has increased by only 15%. The Berg River Dam, which began storing water in 2007, has been Cape Town’s only significant addition to water storage infrastructure since 1995. Its 130 000 mega litre capacity is over 14% of the 898 000 mega litres that can be held in Cape Town’s large dams. Had it not been for good water consumption management by the City, the current crisis could have arrived at a much earlier date. The question is why additional


resources were not brought to bear at a much earlier stage to prevent the inevitable crisis. In a statement to Ground Up, the mayoral committee member for informal settlements, water and waste services and energy, Xanthea Limberg, said: ‘The City, as early as 2000, started implementing aggressive pressure management technology, infrastructure maintenance and public education initiatives to drive water conservation and water demand management.’ . (Ref: article/whats-causing-cape-towns-water-crisis/) Exactly what is meant by ‘pressure management’ is at present unclear. Mayoral Committee members and various local politicians have glibly used this term as if it provides a solution to the city’s water woes. TO BUILD magazine approached the City’s media department to ask its engineers to explain this concept. Despite asking this question towards the end of January, the City has not provided a coherent answer nearly three weeks later – maybe because the use of the term ‘pressure management’ is misleading and more correctly should be referred to as ‘water flowrate reduction’. The confusion is apparent when reading the city’s advisory pamphlet entitled ‘Guide on Water Rationing – Reduced Water Supply’ as sent to editor by the City media department.

Role of the built environment Businesses in Cape Town have to implement effective water-saving measures in a bid to avoid the looming reality of taps being turned off when water storage reaches 13,5%. According to a statement issued by the South African Council of Shopping Centres (SACSC), the shopping centre and retail industry in Cape Town have already begun rolling out plans and campaigns to cope with the approaching Day Zero. Aspects of the retail and shopping centre industry that are directly affected by this crisis are: • Building safety: All major shopping centres are sprinkler protected. The reduction in water

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WATER LEAD STORY pressure results in inadequate pressure for sprinklers to operate. • Food preparation: Restaurants and supermarkets need water to trade. Water supply interruptions impact on their business and also pose a health risk insofar that necessary cleaning cannot be done. • Ablutions: Toilets need to be flushed. The inability to do so poses another health hazard to businesses, staff, tenants and customers. Property companies are doing their part to keep tenants and customers happy during this crisis by implementing various measures to control the situation. In situations like this, it is critical that all stakeholders collaborate to ensure the best possible outcome for all. The SACSC reports the following examples of programmes being implemented by major operators in retail property:

V&A Waterfront (Growthpoint Properties) Stephan Le Roux, the director of Growthpoint Properties, a founding member of the Green Building Council of South Africa (GBCSA), commented on the various measures Growthpoint Properties have undertaken to ensure that the V&A Waterfront remains steadfast during this challenging time. Over and above the extensive water-saving initiatives already deployed, the V&A will be constructing their own dedicated desalination plant. Whilst this will not be in time for the current projected D-day, it will ensure future water security. ‘We have, over the past number of years, implemented a number of water-saving initiatives across our portfolio such as rain water harvesting, waterless urinals, replacing water-thirsty plants with indigenous plants and hard landscaping, abandoning irrigation all together-even from boreholes,’ says Le Roux.

Canal Walk, Cape Gate and Somerset Mall (HYPROP Investments Limited) Camilla Lor, Marketing Executive for Canal Walk says HYPROP Investments Limited has instituted stringent measures at all its shopping centres in the affected areas. ‘This includes limiting the use of water deployed inside the centres and external amenities. To remain top-of-mind and to reinforce the change in attitude that is required from everyone, all centres have engaged in regular communications to tenants, including suggestions for easily implementable water saving tactics, as well as highlighting the successes the centres achieve on an ongoing basis,’ Lor adds.

Tyger Valley Centre (Mowana Properties) Nozipho Khumalo, the National Marketing Manager for Mowana Properties says: ‘We have identified that all parties need to work together to ensure that we save the precious resource we have. We have been working very closely with our largest consumers of water within the centre which include air conditioning, tenant usage and ablutions, to aim to drive and exceed the savings on consumption demanded by council.’

Food Lover’s Market Commenting on the efforts at Food Lover’s Market, Group Head of Sustainability, Andrew Millson, said that Food Lover’s Market had been preparing for this crisis for some time. ‘We first set up a water emergency group, consisting of various department heads and senior managers, in October 2017. This was primarily aimed at reduction of water use, however, as the drought shifted, more emphasis has been placed on Day Zero itself,’ he explains.

Spar Ross Bannatyne, Spar’s New Business Development Manager for Western Cape and Namibia, says that Spar is both a wholesale operation, with six independentlyoperated distribution centres, as well as a retail operation. Stores and various brands are run independently. ‘Our distribution centre has various detailed water plans and measures put in place to significantly reduce our consumption. These include increasing communication to those involved including landlords; and ensuring that each of our stores are able to operate if the taps are turned off,’ he says.

Woolworths Kirsten Hewitt from Woolworths says the pending Day Zero will have an impact on operations in the Western Cape and expect that it may impact staff availability, product availability and store operations. ‘We have installed water tanks at our Western Cape stores, distribution centres and our head office to ensure uninterrupted water supply in the event of Day Zero. We are investigating alternative water source options, such as investing in a desalination solution and alternative water sources outside of the Western Cape. Our first priority is our staff,’ she adds.

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Effective water storage solutions

With crippling water shortages an increasingly harsh reality in South Africa, and no long-term relief in sight, water security is fast becoming an essential element of any new residential or industrial development.


Photo by Eco Tanks

Building on 14 years’ experience in the storage industry, Eco Tanks offers home and commercial users a wide range of effective water storage solutions as part of their wider water management initiatives. And such is their confidence in the quality and durability of their products that Eco Tanks is the first and only manufacturer in South Africa offering a full replacement value, 10-year guarantee on all its tanks. ‘We invest heavily in innovation and are continuously improving our manufacturing and moulding processes,’ says Eco Tanks co-founder, Darren Hanner. ‘This gives us the utmost confidence in our products, and allows us to pass on that peace of mind to our customers by guaranteeing both our quality and our workmanship.’ All Eco Tanks feature food-grade black liners, are completely BPA free and therefore safe to store drinking water. Eco Tanks’ commitment to innovation is accredited by Agremént South Africa and the company is a full member of the Association of Roto Moulders of South Africa (ARMSA), where it is actively working to ensure sustainability of its industry. It was one of the first roto moulders in the country to achieve SANS 1731 accreditation and remain the first and only national roto moulder in South Africa with full ISO 9001 accreditation, a sought-after

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acknowledgement offering its customers products and services of consistently good quality. ‘One of the reasons we are able to offer across-theboard quality guarantees – a first in our industry – is because our plants use some of the most modern and advanced machinery in the country,’ Darren says. ‘Added to this, our in-house laboratory ensures that all products are continuously tested and held to the most stringent quality standards. As a result, our quality assurance is absolute.’ Despite stringent competition in an increasingly competitive market, Eco Tanks has enjoyed rapid and sustained success over the past 14 years. From a single factory in East London, the company has had to expand repeatedly to keep up with demand and currently operates four fully-fledged production facilities in four provinces: the Eastern Cape, KwaZulu-Natal, Gauteng and, most recently, the Western Cape. ‘Our new factory in Cape Town is an important milestone for the company,’ Darren says. ‘Not only does it extend our footprint into the Western Cape, an important market for us, but it will also allow us to increase our production in the Cape three-fold, with extra manufacturing capacity being added now.’ With water restrictions affecting virtually every community throughout South Africa, all consumers – domestic, commercial and industrial – must look seriously at rain harvesting. ‘At Eco Tanks, we are exceptionally proud of the fact that the cost-effectiveness of our products, coupled with our quality guarantees and excellent after-sale service, is making it easy and affordable for people to make water storage part of their water management plans at home and at work,’ says Darren.

Contact Eco Tanks to find out how you can play your part in making South Africa a little more water wise.

Eco Tanks T +27 (0)83 447 1482 E W Branches Cape Town 6 Cosworth, Crescent Racing Park, Milnerton Pretoria 57 Robyn Street, Klerksoord Pietermaritzburg 24a Shortts Retreat Road, Mkondeni East London 28 Osmond Road, Wilsonia issue 23

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Slicing electricity costs A speaker at the African Utility Week believes that distributed generation will slice electricity costs by up to 90% for the average household.

Photo by Gareth Griffiths

Energy expert Ted Blom is a speaker and advisory board member of the 18th African Utility Week taking place from 15-17 May this year in Cape Town, South Africa. In the run-up to the event, he says in an interview that: ‘South Africa and the world is at the precipice of revolutionary developments in energy generation and distribution, and the next five to ten years will render such dramatic changes that today’s energy supply chain will not be recognisable, especially with the advent of distributed generation, which in many instances will kill off centralised “bulk” generation and distribution. I believe this move will slice electricity costs by up to 90% for the average household and be a boom industry for participants in the energy revolution, with concomitant radical improvements in standards of living.’ Last year, Blom, an independent energy expert, also testified before the South African Parliament’s inquiry into Eskom’s governance. ‘The Parliamentary Energy subcommittee investigation is a refreshing attempt to decipher

Africa Utilities Week 2017

what has gone wrong at Eskom since it was “commercialised” in 2001. However, any results will only highlight that prosecution and clean-ups are long overdue, as the committee is powerless to take punitive action against wrongdoers,’ he says. The full interview with Ted Blom can be read at: http://

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RFIs for digital ideas The City of Cape Town has issued a request for ideas (RFI) to the market, calling for submissions detailing how it can make use of digital technology and data to enhance its performance and enable residents and businesses to engage more actively with the City. Information and ideas are sought on any products, technologies or other offerings that could leverage existing infrastructure and data. The City is interested in exploring innovative ways to deliver on its objectives as an organisation. One of the over-arching requirements is the formation of partnerships that will take advantage of the City’s significant investment in optic fibre deployment, the CCTV camera network and Wi-Fi connectivity. Areas of interest include the following:


• Public safety • Infrastructure planning and maintenance • Energy efficiency • Transportation and integrated urban development • Water and waste management • Using cloud computing technology as a disruptive model enabling clustered community commerce and to address social challenges within these communities

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‘The global challenges of rapid urbanisation, climate change, increased pressure on resources, and the provision of infrastructure and services all need to be addressed at the city level and the City believes that there are technology-based solutions out there that can enhance service delivery and make economic growth for residents a real possibility. Thinking outside the box and developing these solutions will help us move this city from good to great,’ said the City’s


Mayoral Committee Member for Corporate Services, Councillor Raelene Arendse.

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Cautious optimism According to an industry association, earthmoving and mining equipment sales edged upwards this year, giving suppliers reason to be cautiously optimistic going in to 2018. Provided the country experiences ongoing political and currency stability the outlook remains positive for the year ahead. Combined with a recovery in certain commodities such as coal, this may be just the medicine the industry needs to recover beyond the highs of 2013 levels, says Construction and Mining Equipment Suppliers’ Association CONMESA Chairman, Lawrence Peters. ‘A number of factors, however, continue to weigh on sales with low commodity prices, as well as political uncertainty and a volatile currency hampering our economy in terms of production and investment. As a result, large-scale construction, mining, government and municipal infrastructure projects are being stalled and this still weighs heavily on equipment sales. ‘While sales in general are suppressed, there are

pockets of high-activity in certain regions due to local infrastructure programmes attracting investment, as well as certain mining and agricultural sectors which have become resurgent.’ He explains that figures for the first three quarters of 2017 averaged over 1450 units per quarter, which is a welcome improvement of the 1180 units per quarter averaged in the previous year. ‘We are hopeful that these are the leading indicators for an industry wide upturn and based on this upward trend are looking forward to a better year in 2018,’ Lawrence concludes.

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A new player arrives A new player has entered Africa’s sub-Saharan market for lifting solutions.

Photo by Crane & Hoist Equipment

According to a company release, Crane & Hoist Equipment SA has entered the market just in time for a long-awaited recovery in the construction sector, and when contractors will be looking to secure quality, reliable lifting equipment at an affordable cost. ‘Our team has many years’ experience in this industry and we know how important it is for lifting equipment to be fit-for-purpose,’ says Crane & Hoist Equipment SA sales director Louw Smit. The company leverages its extensive supply networks locally and abroad to source used cranes, but also has close links with original equipment suppliers for the supply of brand new units where required. ‘The past few years have been marked by tough trading conditions, so many contractors are opting for refurbished tower cranes at this stage,’ says Managing Director, Brenden Crous. ‘We have strong technical capacity to assess the condition of used cranes, to manage their repair and refurbishment, and to advise customers on the most cost effective ways of getting the most from their equipment.’

Danie Roos, Brenden Crous, and Louw Smit of Crane & Hoist Equipment SA.

Crous also emphasises the company’s expertise in helping customers to plan and implement lifting solutions for specific projects; working with contractors in the early days of a project can allow for the optimal rental or purchase strategy to be developed.

Crane & Hoist Equipment SA (Pty) Ltd T +27 (0)83 413 7524 W

Vision in Energy Event According to a press statement from the Liquefied Petroleum Gas Safety Association of Southern Africa (LPGSASA) Sub-Saharan Africa’s most prestigious gathering of the LPG industry players will take place at the 2018 LPGSASA Annual Conference. The 2018 Vision in Energy (VIE) LPG event is again being held in collaboration with the LPGSASA. This event is set across two full days consisting of a world class exhibition, a hard hitting one-day conference, a showpiece gala dinner and awards ceremony and a one-day industry-leading workshop. The 2018 VIE event is a highly significant gathering of LPG stakeholders in the region. With strong interplay between local and international trends as well as challenges and opportunities within South Africa and its neighbouring countries, the Liquefied


Petroleum Gas Safety Association/2018 VIE positions itself as the gateway to the region’s LPG market. • Sandton Convention Centre, Gauteng, South Africa, 7-8 May 2018 If you are a member of the LPGSASA, take advantage of the member discount by registering now.

Vision in Energy T +27 (0)10 003 0295 W

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Centre of Excellence

Photo by Chryso

Opened just six months ago by a leading admixture producer, a testing and advisory centre has seen growing demand from customers and has quadrupled its staff complement to keep up.

According to a company release, concrete admixture users have wasted no time in taking up the testing and advisory services of Chryso Southern Africa’s new Centre of Excellence, which provides a complementary role to specialist testing laboratories. ‘We face a very busy 2018,’ says the company’s Laboratory Development Manager, Ronette Smit. ‘The centre represents a substantial expansion of our laboratory testing facilities, which now boast ultra-modern equipment and temperature control systems to offer cement, concrete and construction

systems technology as an added-value service to our customers.’ Smit says the centre provides tailor made solutions to match specific applications and can recommend the suitable cement additive and dosage to cost-effectively boost concrete mix performance. ‘The Centre of Excellence also plays a key role in the Chryso Group’s new product formulations. While most are based on customer needs, some are the result of new technology developed either at the Chryso Group’s head office in France or in-house in South Africa.’ While the centre currently focuses on wet concrete products, the service will soon encompass testing and recommendations on dry precast products such as concrete roof tiles. Brick and block making will also be added to the list of testing services, for which a special block press is to be installed.

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More than a plug A popular manufacturer of wall fixings tells To Build that their investment in production facilities and research & development centres means that new and innovative fastening solutions are being created all the time. Additionally, a strong commitment to sustainability guarantees that their products and processes are developed responsibly. The Rawlplug brand was created in 1919 in the UK and quickly established an international presence. Today they have subsidiaries and distributors across the world responsible for the design, development, production, delivery, sale, installation, and service of their products. ‘The word Rawlplug is the word that is used in the trade, retailers and by all DIYers, few people know that this name is held by the original creators, designers, and manufacturers Rawlplug, they started this all back in 1919 and are still at it 98 years later,’ says Ryan Hunt, Sales Director at Vermont Sales, the exclusive

distributor for Rawlplug in Southern Africa. ‘Their R&D is huge, they are testing and developing daily coming up with new innovative products, improving existing products and growing their already extensive range. There are several fixing products on the market today, however we believe that none are close to Rawlplug for proven tested quality and range,’ adds Hunt.

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EDITOR’S CHOICE Promising Products

Professional pest management Bayer Environmental Science (ES) specialises in the development and marketing of pest, weed and plant-disease control solutions for non-crop situations. This encompasses professional, rural hygiene, termite management, mosquito and locust control, turf, stored product protection and professional self-applied. roads and airport runways. Premise is a sustainable solution for termite control. It is water-based and has been designed to provide protection at extremely low does, using an active ingredient with a good safety and environmental profile.

Photo by Bayer ES

Bayer ES is proud to now be a valued Affiliate Member of the South African Institute of Architects (SAIA). ‘We are really excited with the commencement of this professional relationship and we are certain that it will be beneficial to both organisations. SAIA is a body of professional architects and architectural firms and is indeed influential in the built environment where its members continue to change the landscape of our country by providing exceptional expertise, excellence and sustainability in the architectural profession,’ says a Bayer spokesperson. Premise 200SC is a suspension concentrate insecticide used for the protection of buildings against subterranean termites and ants, which has a residual action of five years. Premise can also be used for perimeter treatment, post-construction and pre-construction and can be applied for use on

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Build something! BuildSomething is an advisory service by the Kreg Tool Company that is backed by a staff of experts who have decades of project experience and expertise. Kreg is over 27 years old and creates tools that help build a sense of accomplishment during build projects. They bring that same dedication to BuildSomething, free to any Kreg product owner. BuildSomething is organised so the user can easily find the information they require. The information is grouped by subject and the plans can be sorted by space and type, making it simple to find the inspiration and all the help needed to turn inspiration into reality.


Kreg – Build Something W Vermont Sales W

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Promising Products EDITOR’S CHOICE

Three 360° lines with high visibility

Photo by Bosch

For more efficiency on the construction site, Bosch offers a new Line Laser Generation with three models: • GLL 3-80 Professional - an entry-model • GLL 3-80 C Professional (Red) - a connected model • GLL 3-80 CG Professional (Green). – a connected model

They are the first ever Line Lasers worldwide, that thanks to Bluetooth, can be controlled via an App. Tradesman now can use the Levelling Remote App to switch laser lines on or off, for example, without touching the tool and accidentally disturbing lines already set up. The controlling via the App thus makes working in difficult areas easier and faster. The brightness of the laser lines can also be set as needed by the tradesman, either to see in bright areas or save the battery. The Bosch Levelling Remote App can be downloaded for free from the Google Play Store and Apple App Store and is also part of the Bosch Toolbox App.

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Cordless tools with enduring power plants There is always something extra special about Festool’s comprehensive range of power tools. ‘Every product has an edge, from their new groundbreaking technology, their EC- TEC power plants, a comprehensive range that fits our customer’s needs,

to the accessory kits designed for the power tools, right down to the tool case Systainer systems that are simply brilliant,’ says Ryan Hunt from Vermont Sales, distributors of the Festool range in South Africa. The Festool POWER SELECT cordless range includes: • A powerful Quadrive PDC percussion drill • C18 C-Shaped • CARVEX PSC 420 PSBC 420 pendulum jigsaws • TXS Drill and Driver • CXS Drill and Driver • DURADRIVE DWC drywall screwdriver • The ultra-lightweight BHC 18 hammer drill • T 18 + 3 flexible power pack • HKC 55 Circular saw with FSK cutting rail • The classic TSC 55 circular saw

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Plan, Design, Build, Interior & Exterior Décor

PROFESSIONS Architects..............................................36 Construction & Contractors........................................44 Construction, Health & Safety.....................................46 Interior & Exterior Design & Décor.................................... 48 Developers.............................................52 Engineers................................................56 Landscaping & Landscape Architects....................... 58 Legal.........................................................65 Quantity Surveyors............................ 67

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Profile: Green Block Architects Photos by Pam Golding

The practice prides itself on creating beautiful, unique and sustainable designs that embody the essence and character of each individual client. The spaces created by Green Block are carefully conceived, allowing clients to live and work in them, always striving to compliment and improve the way of life and business trading of those clients.


‘We are a well-known and reputable multi-discipline architectural practice based on the cross borders of Gauteng and Pretoria, Johannesburg and North-West and Hartbeespoortdam. Over the years Green Block Architects has been involved in various high-profile projects and well-known developments of luxurios security estates,’ says Lukas Meyer, Director and principal architect for Green Block. ‘Our young, dynamic and professional team strives for nothing but client satisfaction. We are skilled and educated in multiple aspects of the architectural design process. We pride ourselves equally on being able to create beautiful spaces and having a strong history in the construction industry, enabling us to develop a project to our clients’ specific brief and needs, and equally important, to their budget and time lines. With

ry in s, ngs ”–


this holistic approach, we ensure the utmost quality and service to suit each client’s individual needs,’ he adds. Green Block Architects is registered with the following governing bodies and affiliates: • SACAP - The South African Council for the Architectural Profession • PIA – Pretoria Institute for Architecture • Green Building Council of South Africa

As an architect, you design for the present with an awareness of the past, for a future which is essentially unknown. - Sir Norman Foster.

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ARCHITECTURE Professions Approach and style ‘We have an open space and clean lines approach to most of our designs. We feel that people are not made to fit in to a little box and therefore spaces that are interconnected and free flowing are what make our houses lovely comfortable homes,’ explains Meyer. ‘It is important for us to really understand our clients and how they see themselves most comfortable in spaces they want designed. Spaces should only be defined by the furniture and not the walls, therefore we love opening up our designs so that nature can

become part of the home in all aspects of day-to-day living. Sustainability is one of our cornerstones when it comes to designing our buildings. We believe we must take care of the planet and every small contribution will add up in the long run,’ he adds.

Green Block Architects T +27 (0)12 244 3249 E W

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This year, the Architecture ZA festival (#AZA18) is inviting all those engaged with the built environment to be part of a call for participatory action around how we shape our cities collectively.

Photos by Karen Eicker

#AZA18: WeTheCity

As our cities evolve in response to global urbanisation and climate change, new opportunities are being created toward compact cities, improved resource consumption, economic and social dynamism, market creation, human development and climate change adaptation. Cities need to be sustainable, adaptive and diverse to be more resilient in the face of such new scenarios.

Theme Under the theme ‘WeTheCity: Memory & Resilience’, the #AZA18 programme will focus on issues of design and practice concerning environmental potential, cultural heritage and human settlement – with South African architectural, urban and cultural producers sharing experiences and perspectives with cuttingedge international practices from around the world. Speakers and delegates will engage in different scenarios of change about how we live, interact and survive, both as individuals and as part of a collective, within the urban environment. The programme will centre around resilience as the ability of a system to absorb, or recover from, certain disturbances without losing its ability to function; and memory as the phenomena that imbue a place with meaning. Given the rapidly changing roles of design professionals, the term ‘WeTheCity’ is both a proclamation and a provocation, implying a call for participatory action around how we shape our cities collectively. The programme will include keynote presentations, parallel sessions, student design sessions, films and professional practice sessions. Confirmed international speakers to date include Enrique Browne, one of the most prolific Chilean architects and co-founder of Browne & Swett Arquitectos in Santiago; award-winning architect and principal of

the design studio sP+a in Mumbai, Sameep Padora; Mexican architect, Gabriela Carrillo, who was voted winner of the 2017 Women in Architecture Award by prominent international magazines The Architectural Review and The Architects’ Journal; and the young Cameroonian architect, Hermann Kamte, winner of the WAFX Awards 2017 Cultural Identity prize. Rising star UK-based architect, Peter Barber, will also present his ground-breaking work focused on mixed-use and housing. #AZA18 will present a series of inspiring exhibitions including the prestigious international LafargeHolcim Foundation Sustainable Construction Awards for the Africa Region; UP’s Department of Architecture 75th Birth Year exhibition; an Urban+Trans+Formation exhibition; the Corobrik SAIA Awards of Excellence & Merit; the Ceasarstone Competition exhibition; and the PPC Imaginarium and Fuch’s Students’ Competitions exhibitions.

Details #AZA18 will be held at 012Central in the Pretoria inner city from 3-5 May 2018. Presented and hosted by the South African Institute of Architects (SAIA) and co-hosted by the University of Pretoria (UP), this three-day festival comprises two days of conference presentations and one day of tours and master classes. Members of the public, students, designers and artists, urban thinkers, economists, and all built environment professionals are encouraged to attend.

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Project: Rubela Park On a challenging site, Architects of Justice (AOJ) have created a geometrically striking industrial-chic office building which employs forthright sustainable design methodology and technology. The three partners in Architects of Justice, Mike Rassmann, Kuba Granicki and Alessio Lacovig, formally established their practice in 2009 after working in various other architectural practices. The practice is based in Germiston and draws its name from a common desire among the partners to have a positive effect on the built environment by doing justice to their clients, their sites and architecture in all their projects. ‘In mid-2015 we were commissioned to design a new office building for Caldas Engineering, a supplier of crusher parts to the mining industry,’ says principal architect, Mike Rassmann. The client required more yard space (for stock storage) and more office space (to accommodate their increasing staff complement). They acquired a 4300m² rectangular property in Activia Park, Germiston, which met their requirements for more yard space but unfortunately did not have any quality office space on it.

Locating the office space ‘The property had limited derelict office space at the back of the site and we had to maximise the yard area

Project team Architects: Architects of Justice Project Managers: Condor & Co Project Management Quantity Surveyors: Lyndon Projects (PTY) LTD Structural Engineers: V&H Consulting Civil Engineers: Klunene Consulting Civil Engineers Contractor: Zatmar Construction

Photos by AOJ


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since every spare square metre of space would be beneficial for the client,’ explains Rassmann. Hence the starting point for the design was to locate and size the new office building, named Rubela Park, on the site to maximise the yard space, while ensuring that the new building would have an optimal solar orientation. This proved to be quite a challenge as the position for the access road on the east boundary and the orientation of the site, which runs lengthways east to west, meant that laying the building out for optimal north solar exposure would firstly impede on the yard space and secondly, reduce the street exposure of the building. Rassmann explains that AOJ paid very close attention to, and made use of, the town planning requirements to take advantage of the guidelines and get the maximum number of storeys in the building to lay the square meterage out over more floors and reduce the footprint of the building, which in turn increased the amount of yard area.

Key project office space attributes • • • • • •

low maintenance PV rootop green credentials rainwater harvesting comfortable internal climate retrofittable to higher grade office space The project received a Gauteng Institute for Architecture (GIFA) Award of Commendation in 2017 and Rassmann feels that it is always a highlight when projects are acknowledged by others.

‘We knew that the client was happy with the outcome, as were we, otherwise we would not have submitted the project for the awards, but to be recognised does cement that notion.’ GIFA describe the project as a box in a box in a box, but much crisper and lighter than can normally be expected from mere industrial buildings. ‘Fastidious detailing and a sense of width and space shows a generous but particular design state of mind. The client and staff have been transported by the architects to a work environment that is open, free and light and enhances collaboration and pride.’

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Photos by Concor


Construction major wins big A well-remembered name in construction recently returned in a new guise and has made a great showing in the 17th annual Construction World Best Projects competition, showcasing excellence in the South African building and civil engineering sectors. Experienced members of the construction fraternity judge the awards, which are hosted by Crown Publications, the publishers of Construction World magazine. There are six categories available for project entries and they are judged according to a range of criteria that include construction innovation technology, design, cost, quality, risk management, health, safety, corporate social investment and environmental impact. In the Building Contractors category, Concor Buildings won the top award for its Menlyn Shopping Centre project; and in the Civil Engineering Contractors category, Concor Infrastructure received a Highly Commended award.

Menlyn Shopping Centre Winning the Construction World’s Best Project award in the Building Contractors category is a huge accolade for Concor Buildings, especially given the scale and complexity of this contract. In a R2,2 billion extension and refurbishment, this project has made Menlyn Park Shopping Centre in Pretoria the ‘biggest shopping experience’ in Africa. The length of the malls – on four levels – is now over 3,4km and the shops cover 173 500m2 of floor space. In addition to all the refurbishment work –


which included 14 000m2 of mall ceilings and tiling – some 60 000m2 of retail space was added. All this was completed in less than 15 months. There were close to 60 subcontractors on site when the project hit its busiest phase, with about 100 bricklayers placing 3,5 million bricks. Perhaps the most remarkable aspect of this job was that tenants and shoppers still had access to the existing mall areas so there could be business as usual. This meant that many of the teams worked at night so that tasks were done before the mall opened each day at 08h00. The project received a Green Building 4 Star rating for its environmental and sustainability considerations, a first for the retail sector in South Africa. To fast track the construction programme, the project made use of steel elements which were fabricated in advance in a controlled factory environment. These were used to achieve a contemporary and timeless atmosphere with light-filled spaces, also including aesthetic features. With limited space, all logistics were carefully planned so that delivered materials could be quickly erected, creating space for the next deliveries. Innovative use was made of smaller cranes and spider cranes on the decks to move steel to required areas.

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Above left: Wind farm, Northern Cape Above right: Safety was always a high priority, allowing the project to achieve two million Lost Time Incident Free (LTIF) hours in August 2017

Loeriesfontein and Khobab Wind Farms In the Civil Engineering Contractors category of the Construction World’s Best Projects competition, Concor Infrastructure was highly commended for the two pioneering renewable energy projects in the Hantam Municipality of the Northern Cape: the Loeriesfontein Wind Farm and the Khobab Wind Farm. In a consortium with CONCO, Concor Infrastructure was responsible for the construction of all 122 wind turbine generator foundations, as well as the adjoining hard stands and internal roads on both sites. Each of the wind turbine bases is 19m in diameter and holds a 99m high turbine tower with an 80-ton nacelle. Concrete design was key to the performance of this contract, demanding the right strengths while limiting the carbon footprint. The plinths at Loeriesfontein, for example, were constructed using high strength 60MPa concrete with a design mix of 75% ground granulated corex slag (GGCS) in place of cement. Concor Infrastructure used 50% waste material for both the plinth concrete and the 30MPa conical base concrete. This helped reduce the project’s estimated overall carbon footprint by 31%. All this was done in an efficient and continuous work process that allowed each foundation base to be completed from excavation in just 10 days. In line with Concor Infrastructure’s skills development strategy, these remote projects managed to source and train much of their workforce from the Loeriesfontein community 60km away. Situated in such an arid area, the project conserved water through re-use and re-treatment, using a screening system to remove the heaviest solids

and bacteriological rollers for the remainder. Many environmental issues were addressed, including protecting and trans locating threatened and endangered plant species, as well as reclaiming contaminated soil through bioremediation.

Remarkable safety record The credibility of the Awards is ensured by the experience of the three judges, each of whom has been in the industry for decades. They also represent various professional bodies of which they were presidents: the Engineering Council of South Africa (ECSA), Consulting Engineers South Africa (CESA), the Chartered Institute of Building (CIOB) and the Master Builders Association (MBA).

Concor Buildings / Concor Infrastrucuture (formerly Murray & Roberts) T +27 (0)11 590 5500 W issue 23

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Association for all

ACHASM is a registered non-profit company and a recognised SACPCMP Voluntary Association (VA), established to provide all those working in the Construction Health and Safety (CHS) field with an advisory and representative body. The organisation is committed to promoting the professional interest of CHS practitioners within the built environment, in terms of the Construction Regulations (2014).

Vision To be the preferred professional association for construction health and safety professionals practicing on the African continent.

Mission To promote professionalism in the practice of construction health and safety among all built environment stakeholders and contribute to the achievement of optimum construction health and safety on projects by: • Determining what constitutes best construction H&S practice globally • Promoting research and development to improve construction H&S systems, processes, procedures, and practices • Presenting CPD events that enhance construction H&S competencies • Presenting construction H&S education and training • Forming partnerships with statutory built environment councils, and professional built environment associations • Facilitating access for all who are prepared to acquire the requisite construction H&S competencies, and • Monitoring members’ behaviour relative to the Association’s values.

Goals • All built environment stakeholders will view


Photo by Gareth Griffiths

Membership of the Association for Construction Health and Safety Management (ACHASM) is open to all persons involved with Construction Health and Safety (CHS). Professor John Smallwood, co-founder of ACHASM, addresses a workshop of the organisation

construction H&S as a project value • All built environment disciplines will include construction H&S in their scope of work • Facilitate construction H&S research and development • Develop a construction H&S framework for tertiary-built environment • Identify the competencies for construction H&S professionals • Compile construction H&S guidelines, and practice notes • Deliver construction H&S CPD and education and training • Conclude a MoU with all statutory built environment councils, and professional built environment associations • Establish a code of conduct for members and construction H&S professionals, and • Investigate improper conduct of members and carry out disciplinary hearings.

Values The following values form the basis for the Association’s approach to its activities: • Accountability • Commitment • Ethical • Honesty • Inclusiveness • Integrity • Professionalism • Sustainability • Transparency


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“Creating a Sense of Place through innovative Contemporary Design Solutions, integrating Interior and Exterior spaces to incorporate Sustainable, Green Interiorscapes”

Heidi Jäger I n te r i o r






D esi g n





Mobile: +27 (83) 269 5087 E-mail: Website: Facebook: heidijagerinteriordesignconsultants Cape Town, South Africa

Professional Member of the IID Registered member of SACP PAD 44683704 Masters’ Degree in Design. A sustainable urban design approach to adaptive reuse projects in Cape Town.

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Profile: Design Indaba Speaker Having taken place in the third week of February 2018, the Design Indaba will be something of the past by the time that this edition of To Build Edition is printed. However, it is worth mentioning that once again the calibre of speakers at the event was excellent, despite the negative publicity that South Africa has received of late. For the enjoyment of readers, herewith a short profile on one of the fascinating speakers, who is both an architect and a designer at MIT.


Photos by: Noah Kalina

Architect and designer Neri Oxman is the Sony Corporation Career Development Professor and Associate Professor of Media Arts and Sciences at the MIT Media Lab where she founded and directs the Mediated Matter research group. Her team conducts research at the intersection of computational design, digital fabrication, materials science and synthetic biology, and applies that knowledge to design across disciplines and scales - from the micro scale to the building scale. She got her PhD in Design Computation as a Presidential Fellow at MIT. Prior to MIT, she received a Diploma from the Architectural Association (RIBA 2) after attending the Faculty of Architecture and Town Planning at the Technikon Israel Institute of Technology (Hons.), and the Department of Medical Sciences at the Hebrew University in Jerusalem. Oxman’s goal is to enhance the relationship between built, natural and biological environments by employing design principles inspired and engineered by nature and implementing them in the invention of novel design technologies. Areas of application include architectural design, product design, fashion design, as well as the design of new technologies for digital fabrication and construction. She coined the term, and pioneered the research area, of Material Ecology, which considers computation, fabrication and the material itself as inseparable dimensions of design. In this approach, products and buildings are biologically informed and digitally engineered for, with, and by nature. Oxman’s work is included in permanent collections at the Museum of Modern Art (MoMA), The San Francisco Museum of Modern Art (SFMOMA), Centre Georges Pompidou, the Boston Museum of Fine Arts (MFA), Cooper Hewitt Smithsonian Design Museum, the Smithsonian Institution, the FRAC and the Boston Museum of Science, among other museums and prestigious private collections.

Since 2005, Oxman and her team have won numerous awards and have grown in international scope and acclaim at venues such as the World Economic Forum and the White House. Among Oxman’s awards are a Graham Foundation Carter Manny award (2008), the International Earth Awards for Future-Crucial Design (2008), a Metropolis Next Generation award (2009), a 40 Under 40 Building Design+Construction award (2012), the BSA Women in Design award (2014), the Vilcek Prize in Design (2014), an Emerging Voices award from the Architectural League of New York (2015), and the Innovation by Design Award from Fast Company (2015). In 2009, Oxman was chosen as one of ICON’s ‘top most influential designers and architects to shape our future’ and ESQUIRE’S ‘best and brightest’. The following year, Fast Company picked her among its ‘most creative people’ and one of the ‘10 most creative women in business’. In 2014, Oxman was named Carnegie’s Pride of America. A year later, ROADS Publishing picked her among its ‘100 Global Minds: The Most Daring Cross-Disciplinary Thinkers in the World’, and in 2016, she was named a Cultural Leader at the World Economic Forum.

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Professions DESIGNERS

Photos by Inhouse

Interiors offer choice at prestige address An award-winning design Cape Town studio was commissioned by the developers to design the interiors of a series of two- and three-bedroom apartments situated in a new luxury development located on St John’s Road in Sea Point, Cape Town, called the Estate on St Johns. At this exclusive development by Berman Brothers, the designers avoided creating carbon copies and giving all 16 apartments the same design treatment. Instead, design company, Inhouse, has created two distinct styles to cater for different tastes. There is also a penthouse, the 17th apartment, which will be given its own unique interior. Each of the 16 three- and two-bedroom apartments feature an open-plan living area and bedrooms with en-suite bathrooms, but the contrasting interiors of the units create starkly different atmospheres. Eight of the apartments have a modern contemporary aesthetic with a predominantly dark palette, while the other eight apartments boast a classic contemporary direction and a neutral colour palette. This gives potential owners the option to choose the interior they prefer while demonstrating the power of interior design to transform a space. In each of the classic contemporary apartments, marble floors feature throughout the spacious open-plan living area, which comprises living, dining and kitchen zones. A subtle mix of classic and contemporary elements with soft, delicate textures makes the interiors warm and homely. In the kitchen zone, an island clad in natural oak with a polished marble countertop takes centre stage, with white cupboards and classic beaded wall panelling giving the space a light and airy feel. In the bedrooms, the neutral colour scheme continues with soft oak fixtures, plush grey carpets and the same


classic beaded wall panelling adding the final touches. For the second series of apartments, the designers opted for modern finishes and moodier tones, such as dark brown, grey and black, with hints of gold. The open-plan living room and kitchen area features wide plank oak flooring, with walls and cupboards panelled in black-stained oak. The kitchen island is clad in timber and finished with a polished marble countertop. In the bedrooms, light oak flooring and timber wall panelling make up the dominant design features. The overall look-and-feel of these apartments is modern, bold and luxurious. Due to the similarity of the layout of the 16 apartments, there are some elements that have been duplicated in both designs, such as the large black-framed windows that allow natural light into the kitchens and living areas, and the modish light fixtures placed above the islands that provide additional lighting. Ceiling troughs lined with soft LED lights, along with skimmed ceilings with double recessed downlights, feature in both designs as well. In the living rooms, picture windows open onto balconies that provide magnificent views of Cape Town’s Atlantic Seaboard.

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Professions DEVELOPERS

Bringing nature into building design By Nicholas Stopforth, Managing Director of Amdec Property Developments

Construction and nature might not automatically go hand-in-hand, but more and more developers are moving towards incorporating it into building design. This was evident in the 2017 nominees for the World Architecture Festival (WAF) awards ceremony that celebrates architects across 68 countries and innovation in design. Buildings on the 2017 shortlist - across 33 categories - feature creative ideas for natural ventilation and light, as well as water-saving and energy-efficient solutions. Another global trend on the rise is rooftop gardens, springing up in major city centres. Hubs like Hong Kong, Tokyo, Rotterdam and New York are becoming known for urban farming initiatives to boost food resources. This coincides with dramatic growth in mixed-use developments featuring apartments, hotels, shops, gyms and restaurants as developers look to create green spaces innovatively.

The South African scene Closer to home, Johannesburg has long been considered the world’s largest man-made urban forest, boasting over 10 million trees. But could Cape Town be playing catch up? Its city’s skyline is set to change as it sees its first environmentally-friendly mixed-use development comes to fruition in 2020. Harbour Arch is being built on the foreshore by the Amdec Group. This group developed Johannesburg’s iconic and award-winning Melrose Arch.

The most eye-catching feature of this 5.8-hectare mixed-use precinct will be the complex’s leafy rooftop towering over the city’s harbour. Sustainability and eco-friendly innovation will be a key focus area with green building initiatives including refuse recycling, water-saving devices, rainwater harvesting, a centralised district cooling facility and low-energy LED lighting. There is a rise in mixed-use precincts with the potential to maximise the efficiency of energy and water usage, rather than buildings in isolation.

Economic boost The development will also boost the economy, with the first phase creating up to 2 500 construction jobs alone, 350 jobs will arise from two Marriott-branded hotels, retail and lifestyle spaces destined for the site. Upmarket residential apartments and boutique offices space will top its offering.

Amdec Property Developments T +27 (0)21 702 3200/2 E W

Artist’s impressions by AMDEC


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DEVELOPERS Professions

Innovations keep centres afloat

According to information release by the South African Council of Shopping Centres (SACSC), 2017 heralded the closure of stores, the end of an era of a respected brand store and many local retailers on the brink of closure. The last weeks of 2017 also affected retailers – fuel price increases and the ANC elective conference were among the disruptive forces that plagued the retail and shopping centre industry. Despite this, each mall, shopping centre and retailer -both bricks and mortar as well as the ever-growing online - offered something unique to the consumer. According to SACSC, Chief Economist for the Efficient Group, Dawie Roodt, says that more money was spent over the 2017 festive season compared to the rest of the year. ‘Consumers spend more over the festive period – not because of improved circumstances but mostly because of factors such as better marketing and relatively low interest rates. New developments such as Black Friday have also contributed to spending,’ he says. He added that 2018 may be no different to 2017 in terms of the economy. ‘I am afraid that although the past festive season may have been good, last year as a whole was quite dismal. The fundamental reason for this is simply weak economic growth that dampens job creation and wage increases,’ he explains. Retailers and shopping centres alike had to rethink strategies and sales campaigns and offer more to the ever-changing consumer, such as extended shopping hours, entertainment and innovations for families. The Mall of Africa ‘brought the beach’ to Waterfall, entertaining families with authentic beach sand, water slides and pools. Michael Clampett, Head of Asset Management for Mall of Africa said over December, the centre experienced a 9% increase in visitors compared to the previous year.

Photo by Gareth Griffiths

Despite a challenging 2017, retailers and shopping centres throughout the country garnered support from consumers over the festive season.

‘The park was transformed into a summer playground with activities for children of all ages. More than 17 000 families visited the beach,’ he says. Gateway Theatre of Shopping located in KwaZuluNatal ‘brought the snow’ to Umhlanga with ice slides and snow ramps. Michelle Shelley, Marketing Manager for Gateway said ‘Snow World’ was a success. ‘Shoppers were able to voyage into a world of snow for the first time in Durban with ice slides, snow ramps, snow play area, a chilling arctic chamber, realistic animals of the ice age expo-to name a few, attracting over 55 000 shoppers,’ she says. Noel Otto, CEO of Power Fashion Factory said that 2017 taught the group about the lower LSM consumers and their significance. ‘Results demonstrated that Black Friday has been adopted by lower LSM consumers who are known to budget methodically and who will cherry-pick exceptional value offers,’ he explains.

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Professions DEVELOPERS

Looking to the future By 2020, UberAir plans to run air taxis in at least three big cities - Dallas, LA and Dubai. If these get off the ground, a transportation revolution could be sparked that could lead to the rise of airborne cities. Add to this artificial intelligence, environmental issues and the sharing economy and it seems fairly certain that the way we live, where we live and how we build our homes is heading for a dramatic evolution. According to an analysis by Crispin Inglis, CEO of smart online real estate agency PropertyFox, as soon as year 2025, homes could look vastly different. ‘The speed of technological development is just too rapid to ignore and because of the long-term nature of property investments, planning now for the future is critical,’ he suggests. Inglis says that designing for the future, rather than the now, is the smart thing to do. His company has analysed some of the biggest trends, issues and technology currently impacting us and believes by 2025 residential homes could have evolved in some of the following ways.

Water collection Despite the extreme case of the Cape Town drought, South Africa is one of the top 30 water scarce countries in the world. Relying solely on municipal resources won’t be sustainable into the future, so homes will need to have built-in rainwater tanks and double reticulation greywater systems. The popularity of large gardens and pools will diminish. This also means the possible disappearance of the water-guzzling bathtub in favour of showers that automatically turn off after two or three minutes.

Room-mates with a bot Alexa - Amazon Echo’s SmartHome assistant – will become your best room-mate ever. She won’t finish the milk, hog the bathroom or bring home her smelly boyfriend. Instead, Alexa will read you the news, answer even the trickiest questions, take phone calls, control lights, open curtains and update shopping lists. Alexa the bot will become a valuable part of the family so you’ll want to rig your house up to be smart enough to allow her to reach her full potential.


Garages not needed Eventually, it is possible that there will be ‘helipads’ purpose-built on rooftops. But even if air transport doesn’t ‘take off’, Uber, Taxify and lift-sharing apps will almost certainly catalyse a big decline in car ownership. As a result, the space previously used for the garage won’t be needed unless used as a workshop, so we’ll either see smaller plots or the garage area being diverted for other uses.

Homes built for sharing Perhaps the portion of the property previously used to house cars will now be a separate entrance to welcome Air BnB guests who help cover the bond and running costs of the home. Another possible modification could be aspects of a home, like storage, become purpose-built for sharing. Many people rent out their homes for short periods over December and January and they have to laboriously pack up all their personal possessions so that the house feels like a holiday home to guests. A neat solution is to install rotating cupboards that can move the host’s private possessions to the back at the click of a button, with pristine empty shelving, guest towels and linens moving to the front for guests.

The cool kids may live out of the city The combination of air taxis, self-drive cars, carsharing apps and Uber, means there’ll be fewer cars on the road by 2020 which will likely mean fewer traffic jams. This may mean that a city’s trendy crowd will be comfortable living further out of town and new areas will spring up full of good restaurants and bars.

Multi-purpose rooftops If food prices continue to balloon, more and more people will start growing their own produce. With gardens

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Infographic by PropertyFox

DEVELOPERS Professions

shrinking, it is likely rooftops and vertical spaces will be used to plant vegetable and herb gardens. ‘To keep e-commerce purchases delivered by drone safe, there may be special landing hatches on the roof, possibly even refrigerated ones for food deliveries. As the drone pulls in, you can open the hatch remotely via your smart device – or Alexa can do it,’ muses Inglis.

Curing long-term commitments Trend forecaster Dave Nemeth says that a cool future feature is ‘on command interior design’. Through LED and projection technology you will be able to change the look of your house on a daily basis. One day you can project rose gold wallpaper onto your lounge feature wall, and when that trend moves on you can go ahead and switch to a smoky blue paint effect. Where you place your TV will also be less of a big decision as mobile projectors will allow you to stream Netflix on any wall or surface around the house.

App-driven everything Buying and selling everything – from clothing to property – is likely to be app-based. Inglis says that his company, PropertyFox, is already launching a user-friendly dashboard allowing sellers to pick from a selection of services like home staging, home

cleaning or bond applications. It also lets sellers keep up-to-date on viewing and responses and allows them to easily compare their home’s evaluation to other properties of similar size and value on the system.

Price escalations – a home in 2025 Using PropertyFox’s smart evaluation tool - which crunches property data from each area to calculate the best possible price point for a home - and applying an escalation rate based on the pattern over the past eight years, the average price of a house similar to the one described would escalate as follows: Area

Cost of average home in 2017

Cost of average home in 2025







Camps Bay



Parktown North






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Cable stay bridge in Sandton winning top awards

Of the bridges, the Marlboro Rea Vaya M1 Cable Stay Bridge, completed earlier in 2017, has scooped two prestigious awards. Built by major contractors, WBHO Construction, it initially received a regional award from the South Africa Institute of Civil Engineers for the most outstanding project in the structural engineering category. The bridge then went on to win first place in the Civil Engineers Contractors category in the Construction World magazine (CWM) awards. The CWM awards are judged by three leading professionals who have been in the industry for decades representing the Engineering Council of South Africa, the Consulting Engineers South Africa, the Chartered Institute of Building and the Master Builders Association.

Uses – phases 1 and 2 The Marlboro Rea Vaya M1 bridge is for exclusive use by Rea Vaya buses and pedestrians. The bridge is already open for pedestrians. Rea Vaya buses will have exclusive use of the bridge when the Rea Vaya Phase 1C (a) operations begin in October 2018. The bridge will make it possible for buses and pedestrians to move swiftly from Johannesburg CBD via Wynberg and Alexandra over the M1 and into Sandton Central. Over 10 000 people walk between neighbouring Alexandra and Sandton Central every day. The new bridge is going a long way in bringing pro-poor highquality public transport that is safe, affordable and reliable to the people of Alexandra and Sandton.It is also making walking easier, safer and more convenient. ‘Sandton Central is South Africa’s cosmopolitan centre of trade, ideas, interaction and lifestyle. A big


Photo by SCMD / Peter Hassall

It seems as if the Sandton CBD is more connected than ever before thanks to the three new bridges constructed to link it better, improve transport and forge stronger bonds between different communities. driver of these road improvements is introducing integrated public transport in Alexandra and Sandton, which is intended to reduce traffic congestion and begin to create a shift from the use of private vehicles to public transport. Excellent infrastructure that supports easy access plays a key role in this,’ says Elaine Jack, City Improvement District Manager of the Sandton Central Management District.

About the bridge The 271m-long structure extends from Katherine Street in Sandton, across the M1 highway and on to Lees Street in Wynberg and incorporates eight spans. The cable-stayed section comprises a main span of 83m crossing the M1 and a 39m long back span provided with a central tension pier. Most remaining spans vary in length from 25-30 m. Two 52m high slightly inclined concrete pylons carry the cable-stayed section. Mechanically stabilised earth walls form the transition from the abutments to the roads on either side of the bridge. Two ramp bridges provide pedestrian access from either side of the highway to the 3m wide bolt-on pedestrian walkway section of the bridge, resulting in a 13,35m bridge width over the freeway. The consulting engineers on the project were: Royal HaskoningDHV/Hatch/MPA JV. Source: Construction World Magazine, December 2017

Sandton Central Management District T +27 (0)11 911 8018 E W

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Photos by Bidvest Top Turf

Case Study: Landscape time challenge The landscape environment at the recently constructed Times Square Casino, a Sun International project, presented the designers and the implementation company with a huge time challenge – one which they lived up to with great aplomb. The Time Square project itself has been the focus of much publicity of late, having been category winners in the ASTPM Tubular Category Winner and Architectural Category in the prestigious Southern African Institute of Steel Construction Annual Steel Awards. Roughly one year ago, implementation company, Bidvest Top Turf, completed a landscape installation at this prestigious complex. The design was by a highly talented firm of landscape architects, Interdesign Landscape Architects (ILA). The completion dates for the opening of the casino, arena and hotel were non-negotiable with the entire installation phase being packed into the twelve-week run up to 31 March 2017. ILA were required to create a robust public outdoor space to function firstly as a link between the Time Square development and the rest of the Menlyn Maine precinct, and secondly, as a spill-out space for the naturally high volumes of people which these developments inevitably attract.


The landscape needed to work functionally but also be visually appealing from both eye-level and from a bird’s-eye view due to the high-rise nature of the surrounding buildings. There were also to be no pause or rest areas within the piazza, deliberately, to fulfil the requirement of moving people swiftly into the casino.

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Concept The concept behind the design was to reflect on the architect’s theme of horology, the art and science of measuring time, by incorporating theatrical lines and bold curves which enhance the buildings and continue the strong architectural elements within the landscape. The central theme of time is reflected throughout ILA’s design of Time Square, extending to planters and paving that follow a clock-styled pattern. Using a fully indigenous planting palette and a careful selection of plants, the landscape presents seasonal changes throughout the year, thus also enhancing the theme in a subtler manner.

Design challenges One of the biggest challenges faced throughout the course of the project was the fact that a large portion of the central piazza space, which links all three buildings to the rest of Menlyn Maine, was constructed entirely on top of the basement parking, which meant that most of the visible landscape is contained within constructed planters varying between depths of 300mm to 2 500mm. The level difference between Aramist Avenue (leading to the casino), and the Sun Star Circle is three metres north to south. This challenge was overcome by gradually lifting the landscape with planters so that the level changes from the street to the casino were not quite so severe.

The installation was carried out under the supervision of Moses Radebe of Bidvest Top Turf, the logistics were substantial and complicated as the different trades moved through the areas during the twelve-week installation. Bidvest Top Turf provided the protection to the waterproofing, growing medium, drip irrigation and planting of the numerous planter boxes around the casino as they became available leading up to the first completion date. All of which had to be constructed, filled and planted over the twelve-week period leading up to 31 March 2017. The project was fast-tracked with non-negotiable completion dates. Drip irrigation was installed throughout, except for small lawn areas where sprayer and misters were used. The system uses only harvested water which is stored in tanks underneath the building. A VSD booster pump pressurises the irrigation system which only uses recovered water from the basement excavations in the garden.

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ADVERTORIAL Nouwens Carpets

Nouwens Carpets Since 1962 Nouwens Carpets has become a leader in the carpet industry and is widely recognised for their highly specialised technical expertise, world-class operations and proudly South African heritage. Their rich heritage, spanning more than 50 years in South Africa, is focussed on bringing innovative, functional and breathtakingly beautiful carpets to the home and other spaces. While specialising in international-style carpet manufacture, they are a genuinely local brand, crafting quality and true value into a perfect backdrop for their customers’ décor. Over 50 years after opening its doors as a family business, the company employs close on 200 people and is headed up by CEO and owner Luci Nouwens, daughter of the founder, Cornelis Nouwens. In the past five decades the flooring market has changed significantly, particularly in this recent decade. A declining market share for domestic soft flooring products and cheaper imports has demanded a change in strategy. ‘To remain relevant, we have strategically adopted the latest technologies and aligned ourselves with the international players within the industry. We’ve also refocused on sustainable development across all of our activities to give clients a product that minimises its impact on the environment,’ says Olivia Munchin, National Sales Manager for Nouwens Carpets. At the start of 2017, Nouwens was approached by international brand, Tarkett, which is a forward-thinking company in its own right, to manufacture products for the local market. As a result of this partnership, Nouwens now manufactures and sells landscape turf locally under license from FieldTurf. These partnerships have given Nouwens Carpets the opportunity to leverage off their international presence and expand their commercial offering locally. According to Oscar Grobler, Chairman of


Nouwens Carpets, the established flooring company is constantly changing and re-aligning their strategy to seize opportunities within the industry. ‘We have to stay connected with what’s happening in our industry and the world. As a family-owned enterprise, one of our key advantages is that we are able to stay nimble and adapt to evolving market conditions,’ says Grobler. ‘Our artificial turf is the best and most affordable quality product on the market. With the unfortunate water crisis it has been in huge demand since we launched the range in October 2017. Another focus is on commercial business opportunities and offering a value engineered product at a competitive price. This forms part of our ongoing strategy to remain a world-class company in terms of innovation and forming alliances with strategic international partners.’

Nouwens Carpets T +27 (58)622 1101 W

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LEGAL Professions

A fair view Advocate BC Hack is a practising advocate and member of the Cape Bar. He graduated from UCT and UNISA with a BA LLB and worked for a prominent building company for several years before joining the Cape Bar in 1994. He was appointed an Acting Judge in the High Court, Cape Town Bench, during 2016 for a term of office. He writes for To Build. In the light of the above legal position the question then arises how a purchaser in the development of a property with a great view can ensure that someone at least inside the development would not in the future be able to interfere with his view.

In recent times, particularly in the Western Cape the value of property is enhanced if it has a source of water. But there are other attributes which add considerable value.

The view

Case study The question arose in the case of Gerstle and Others v Cape Town City and Others 2017 (1) SA 11 (WCC) which was dealt with as full bench appeal in 2016.

Photo by BC Hack

Historically, however, one of the contributors of value to a property has been a view. I have no doubt if written records were available, the old Roman Forum would have dealt with many disputes regarding the building of villas on the Italian coast. In recent years our courts have considered whether there is a right to maintain a view which could prevent the owner of property in the line of sight from building a structure which would obscure or reduce the view. Generally, in such matters the complainant argued that the action of the owner of the other property was infringing his rights by removing his/her view and thereby suffering damages in the reduction of the value of the property. Our courts have conclusively rejected this argument. In the absence of a legislative change, the law is that if an owner builds strictly in accordance with approved plans (plans that comply with all the laws applicable) then he/she is entitled to interfere with the view of other properties. Particularly in residential developments, although to a lesser degree also in commercial properties, a good view is a major selling point. In the light of the above legal position the question then arises how can a purchaser in a development of a property with a great view ensure that someone at least inside the development would not in the future be able to interfere with his view?

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Professions LEGAL Two owners of property inside a residential development were in dispute because one owner applied for and received approval from the City of Cape Town to extend the height of his building, thereby obscuring the view of the other owner. Clearly being aware of the established law that there was no right to a view, the argument in this case raised by the complainant (Plaintiff) was that the City of Cape Town should not have approved the plans (even though they complied with all applicable laws) because the plans were not consistent with the requirement that all buildings in the scheme be an ‘harmonious architectural entity’. This is a requirement in terms of ‘The amended Cape Townships Ordinance 33 of 1934’. The court consisting of three judges rejected the argument.

A purchaser in turn should make the necessary enquiries to establish what legal steps are in place to properly and effective protect his view. The court discussed the concept of an ‘harmonious architectural entity” and found ‘that a fair amount of subjectivity is involved in the determination of the meaning of the concept, all of the other definitions were premised on an examination from the “outside looking in”’.

The test therefore was whether the scheme retained a harmonious appearance from the outside after the alterations were done and it found that to be the case. The court again considered the arguments as previously raised in other matters that there are ‘two sacrosanct’ principles which it was contended was the basis of the development, namely access to light and view as well as access to the beach. These clearly were the advantages or attractions which were relied on in marketing the units. The court found that if the developers wished to restrict the building which could be undertaken in respect of the front row to protect the light and the view of the back row, ‘there were a number of legal options open to them, including the imposition of a servitude, restrictions on the title deeds, a specific site development plan (of which there was none) which could have imposed a land use condition in terms of s42 of LUPO, or the developers could have registered a homeowners association. Whatever intentions the developers might have professed, these were never translated into legal obligations.’ There is the lesson to be learned. If a developer wishes to sell a development based on the view which will be enjoyed by non-front row units, it should take further steps as set out by the court. A purchaser in turn should make the necessary enquiries to establish what legal steps are in place to properly and effective protect his view.

Bryan Hack T +27 (0)21 4235 441 E

About that View


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Forum 2018 debating key global issues On 23-24 April 2018, the Summit of the RICS World Built Environment Forum reconvenes in London, with two days of cutting edge debates focusing on the commercial strategies needed to harness the enormous potential of the 21st Century’s people and places. Under the title of ‘Our Changing World — Urbanisation, Innovation and Civilisation’, this Summit looks at the three driving forces of industrial transformation, urbanisation and digitalisation. Key themes include collaborative infrastructure, trade and knowledge networks; the role of intelligent technology in driving productivity, and competition and co-operation between cities and regions. ‘The World Built Environment Forum is a global network of professionals combining knowledge, skills and resources to shape the environment global populations need,’ says TC Chetty, RICS Country Manager for South Africa. Delivering the opening keynote address is Tesla Chief Technical Officer and co-founder JB Straubel. A global leader in large-scale solar and energy storage and electric vehicles, Straubel will highlight the role of innovative technology in creating disruptive business models. Other speakers include Jonathan Ballon, Vice President and Group Manager – Internet of Things, Intel Corporation; Guy Grainer, Europe, Middle East and Africa CEO for JLL; and Didier Bonnet, Senior Vice President and Global Practice Leader – digital transformation for Capgemini Consulting. ‘The two-day programme, developed in collaboration with internationally renowned and respected industry figures, will explore the transformative impact of digitalisation on business models and the consequences for cities and the regions around them,’ adds Chetty. Attending the conference will provide insights enabling delegates to: • Understand the trends shaping the urban environment and the interconnected sectoral risks in regional and global markets • Understand the market forces driving foreign direct investment in real estate and infrastructure • Gain valuable insight into real estate markets:

location strategy, occupier needs, responsible investment, and • Learn best practices that make optimum use of available resources and offer the best long-term viability for cities to attract employers and meet citizens’ needs.

Further summit details The main themes will debate the following: • How development of collaborative infrastructure, trade and knowledge networks can generate inclusive wealth and wellbeing and inspire deeper regional economic co-dependencies • The nature and scope of the Fourth Industrial Revolution and the role of intelligent technology in driving productivity across both deindustrialised and industrialising global regions • Competition and co-operation between cities and regions in pursuit of greater prosperity and economic versatility, enhanced public health and welfare, and improved levels of liveability and environmental sustainability.”

About RICS RICS is a global professional body. We promote and enforce the highest professional qualification and standards in the development and management of land, real estate, construction and infrastructure. Our name promises the consistent delivery of standards – bringing confidence to the markets we serve. The work of our professionals creates a safer world: we are proud of our profession’s reputation and we guard it fiercely.

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Photo by the De Leeuw Group


Gemma Moore

Pieter Venter

Six decades later - still expanding To Build is proud to feature the De Leeuw Group on our front cover this edition. We asked a company spokesperson to tell us something more about their diverse service offering. For the past 60 years the De Leeuw Group has always managed to stay ahead and remain relevant in the building and construction industry. As well as their core business of providing a full quantity surveying service, the Group also has property valuation and project management departments.

Valuers De Leeuw Valuers was established in 2016 by Gemma Moore and Pieter Venter, who was already a director of the De Leeuw Group prior to 2016. A need had been recognised for a professional valuation practice that acts as a strategic partner to clients for their longterm decision making, not just tactically on one-off assignments.

We relentlessly seek new ways to continuously improve what we do and the way we do it.

‘There is an underlying approach within De Leeuw Valuers, which we consciously nurture, and which has become part of our DNA, that we constantly and relentlessly seek new ways to continuously improve what we do and the way we do it,’ says the spokesperson. The practice focuses on the valuation of commercial property with extensive experience in the valuation of specialised assets, such as hotels, hospitals and affordable housing. De Leeuw Valuers is a preferred service provider for the major banking groups in South Africa. Additional capabilities include acting as an expert witness, real estate consulting and market studies. Moore was recently recognised as the Western Cape regional finalist for the Women’s Property Network Young Achiever Award.

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Plan, Design, Build, Interior & Exterior Décor

BUILDING SYSTEMS Automation...........................................73 Bathrooms.............................................76 Ceilings & Partitions.......................... 78 Doors & Windows.............................. 82 Electrical...............................................87 Floors......................................................89 Kitchens...................................................91 Lighting...................................................94 Roofing..................................................97 Walls & Cladding.............................101

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Photo by Schneider Electric and Gareth Griffiths


Opinion: Power management challenges By James Calmeyer, Vice President: Building for Southern Africa at Schneider Electric

Without a doubt, managing energy costs while driving sustainability and efficiency is one of the biggest power management challenges that facility professionals face today. While advances in technology are making building power management and electrical maintenance more efficient, there are new obstacles that come along with these improvements. For example, one of the biggest trends impacting power management in a facility is the growth of complex electrical networks that include distributed generation like solar, battery storage and backup generation, and voltage disturbances from harmonic emitting sources like variable frequency drives and LED lighting. In the past, every building was designed in the same way from an electrical perspective with the main source of power coming directly from the electrical utility. Now we have much more complex buildings that have different needs in terms of where they consume energy and also how they manage the different

sources from where that energy is being distributed. This adds a layer of complexity for facility managers, because now they are not just a consumer of energy, but also a producer of energy, and must manage those two different sources in parallel.

Changing roles The face of the facility manager is also changing. Traditionally, a facility manager was someone who was an engineer and in many cases, had been stationed in the same building for years. Now, we are seeing a shift in that profile as older workers retire, and a new generation of facility managers emerge who may not know the ins and outs of a facility but bring unique backgrounds and skill sets. It’s also important to consider that a growing number of facilities are viewing electricity as a critical

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BUILDING SYSTEMS AUTOMATION resource. Hospitals, for example, have always considered electricity as mission critical as the loss of power becomes a life safety issue, but now even facilities like shopping malls are viewing it with the same magnitude. If the building loses power and stores must close, that outage can drive customers to competitor stores and significantly impact the bottom line.

Role of system integrators Facility managers are continuously being challenged with how to address these forces of change and run their buildings more efficiently. To do this, they are increasingly relying on system integrators and support teams to help optimise electrical equipment and energy performance, improve electrical system reliability and manage energy costs. This means that systems integrators now need to be up-to-speed and knowledgeable about the latest electrical and energy system technology to deliver the best service for their clients. This can be a challenge for integrators who have spent years learning one set of products and technologies, and now need to quickly change direction. To ensure they are up for the task, system integrators should focus on the following key tactics: 1. Training - Conduct regular, specialised training on the most critical challenges facing building owners and facility managers and the solutions that can solve them. This will help system integrators broaden their expertise to offer their clients a greater range of products and solutions and help them stand out from the competition. 2. Networking - Seek out an open network of fellow system integrators that promotes idea sharing and best practices implementation. With a built-in network of partners to work with, system integrators can more easily take on collaborative projects that might otherwise be beyond their reach and open new opportunities for growth.


echnology - Gain access to the industry-leading 3. T technology solutions that will drive the future of intelligent buildings – and the highly skilled people needed to design, install and support those solutions.

Army of experts These days, facility managers need a full range of technologies and an army of experts to optimise operational efficiency and management of energy and electrical systems. Nobody can go it alone anymore. By partnering with a system integrator that’s constantly expanding their expertise and has the right partnership ecosystem in place, it will make the challenge at hand much easier for facility managers to tackle.

Schneider Electric T +27 (0)11 254 6400 E

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Photos by TheSize

First in sintered stone surfaces A Spanish company has unveiled a new multi-functional tooling system for sintered stone aimed at improving precision and continuity. The company, TheSize, launched its Neolith Infinity system in January 2018. According to information available from the company, the latest fitting solution from the market-leading Sintered Stone Surface brand, offers designers more scope for creativity and fabricators enhanced precision.

Connecting slabs seamlessly The solution is a first in the sintered stone market. It is a multi-functional tooling system which helps fabricators connect two slabs together seamlessly by finely sharpening their edges before levelling them immaculately. The result of extensive research and development by Neolith’s dedicated technical team, Neolith Infinity is a direct response to calls from interiors designers for hyper-realism and invisible jointing on residential kitchen worktops and bathroom vanities. The device consists of three elements: the guiding rule, parallel system and grinding head. It performs the necessary guiding to work along the edge, placing a fixed ruler for ultimate accuracy before performing the grinding task. The result is a faultlessly planed edge of Neolith slab, ready to be matched. This remarkable mechanism allows for the creation of super-strength joints with high resistance to UV and no thermal expansion. Whether subject to intense heat, strong sunlight or humidity, both surface and join will maintain integrity. The tight bond and Neolith’s hygienic properties also ensure that the worktops are easy to clean and maintain. It is ideal for upper end bathroom counter tops. The system can be used across the whole range of Neolith surfaces, an exceptional choice for thicker worktops of 12mm or 20mm.


A term meaning “new stone”, Neolith combines the best natural raw materials with state-of-the-art technology to create a high-tech slab. It is created through the company’s proprietary sinterization technology, exposing minerals and other raw materials to extremely high pressure and temperature (over 1200 degrees Celsius) resembling the way natural stone forms over thousands of years, in just hours. The process gives the product outstanding physical and mechanical properties in terms of compaction, resistance and durability. Commenting on the system, Neolith’s Mar Esteve Cortes says: ‘It’s always exciting to bring a new product to the market, especially one which we have invested so much time and expertise in creating. From a practical perspective, Infinity offers far greater flexibility for those looking to incorporate a sintered stone surface within their home, presenting plenty of aesthetic inspiration. ‘From a philosophical perspective, I think Infinity reflects Neolith’s imaginative approach and uncompromising desire for perfection. We cannot wait to see the potential for Infinity when our fabricators get their hands on it!’ To ensure fabricators and designers know how to use the device to its greatest effect, Neolith is sharing its expertise in a how-to video and a technical manual. This will be made available to Neolith Infinity purchasers, as well as membership to an exclusive area on the Neolith site to receive specific product support. The supplier has an office in Germiston, South Africa.

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Dry walling completes the picture During 2017 the two main facilities of the converted formed V&A Waterfront silo were launched; an exclusive hotel on the top of the former elevator building and the Zeitz MOCAA Museum of Contemporary Art Africa, containing a collection of contemporary art sourced from Africa and its diaspora by philanthropist Jochen Zeitz.

Dry walling in the museum We asked the system suppliers, Saint-Gobain Gyproc how the drywall construction was achieved. They were contracted to specify 17 000m2 of plasterboard solutions for the walls and ceilings inside Zeitz MOCAA. The design was implemented by Scheltema Ceilings and Partitions Cape. ‘The project was significant and presented certain challenges due to the nature of the development.


Janet Thompson, St Gobain Gyproc, at the Silo Hotel

Photos by Gareth Griffiths Imaging as commissioned

The Zeitz MOCAA was opened to much fanfare in September 2017, peaking on the day of its public launch when presided over by former struggle activists, Western Cape politicians and key business figures involved in the project, including the V&A Waterfront’s David Green and lead project architect Thomas Heatherwick. Walking into the massive entrance to the Zeitz MOCAA and through into the atrium space, one is left in awe at the bold and expressive design imagined by Heatherwick Studio of London and implemented by the leading South African firms who worked side by side on the project. It takes the visitor a few moments to realise what they are standing in – the epicentre of a cut-out section of tubular and boxy individual grain storage bins. But it is the interior work done using dry walling and cladding that completes the picture. Likewise, in the Silo Hotel, the interiors rely heavily on dry walling to create living spaces inside the earthy concrete superstructure originating from the original grain silo building. The hotel is located within the former elevator building, a structure which was the tallest building in Cape Town during its early years. Along with Thomas Heatherwick Architects, Rick Brown Architects were the designers and architects of this prestigious hotel. With no less than 15 drywalling types as well as ceilings installed in this extraordinary luxury hotel, the Silo Hotel is truly a celebration of art, style, architecture and design.

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WALLS & PARTITIONS BUILDING SYSTEMS We needed to consider a distinct set of factors such as the safety of the museum’s visitors and artworks, structural capabilities and general comfort-enriching properties,’ says Janet Thompson, the supplier’s regional technical and specifications manager for Gyproc in the Cape.

Public and heritage safety The first step in Thompson’s approach was to enhance the museum’s safety by installing Gyproc Firestop RhinoBoard throughout. ‘This allows people up to 120 minutes to evacuate in the event of a fire,’ she explains. Moisture resistant plasterboard was also used to help control moisture levels in the museum, which not only safeguards its precious collection from any potential water damage, but has practical benefits in rooms like kitchens, bathrooms, waste rooms and the basement where moisture levels are higher than usual.

Strength to weight ratio of the walls Interior dry walls reach up to 23 metres in places. They had to be strong enough to support artworks of unknown weights, in varying places. At the same time, they had to be light enough to comply with heritage building regulations. They also had to be capable of reconfiguration of gallery space and withstand knocks and bumps during this process.

Thompson says it is important to keep structural loading down. ‘When it comes to material selection, weight is a limiting factor in heritage site projects and it’s particularly important to keep structural load to a minimum. We specified a drywall that is ten times lighter than traditional walls, assembled with noggins, load-bearing studs and tracks to reinforce additional strength,’ she explains. The result is truly outstanding, although subdued when compared alongside the warm glow of the nearly century-old concrete from the original silo building. However, walking into any of the 80-plus galleries in the building, the true achievement of the dry walling feature comes to the fore in the new space of the building.

Luxury finishes inside the hotel Thompson says that due to the luxury nature of the hotel and the privacy required within each room, superior acoustics were paramount. All demising drywalls comprised of twin stud and tracks with SoundBloc Gyproc RhinoBoard achieving a sound 63dB (decibel sound rating) versus traditional construction of 48dB. The Gyproc drywalls were complimented by the stunning Gyproc earthy wall covering, Cretestone, throughout all the rooms and bathrooms.

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‘With the 15 varying drywall types recommended and installed we ensured that the acoustics were top notch and fire ratings achieved, aligning with this prestigious hotel,’ says Thompson. The stunning bathrooms and showers comprised of Gyproc moisture resistant RhinoBoard, the toilets and vanities were hung off the drywalling with special bracing along with marble and tiles executing a very classy finish. ‘All the ceilings in the hotel are our Gyproc Cretestone skimmed 9.5mm Rhinoboard, with many bulkheads adorning all the rooms. In the peaceful study area and private restaurant area, our Gyproc Acoustic Rigitone was installed, allowing for privacy and supreme aesthetics, along with our Isover Energylite Acoustic Insulation,’ adds Thompson. The Silo Hotel has 28 rooms, including a spectacular penthouse. Each room has been individually designed and decorated by the stylish wand of owner/designer Liz Biden. Colourful and eclectic pieces juxtapose the modern, industrial architecture. There is also a spa, gym and various entertainment areas. A rooftop plunge pool completes a truly awesome project. The implementation of the drywalling at the silo building was by Scheltema Ceiling and Partitions.


The editor thanks both the Royal Portfolio, the Zeitz MOCAA Museum and Janet Thompson of Gyproc for going the extra mile in providing site access and information for this article.

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Improving productivity heat is no match for Apex’s solutions Warehouses and workshops often become heat chambers in a hot summer as is currently being experienced in most parts of the country. Doors left open to allow access for people and equipment also let in hot air which is trapped in the building and reheated, causing excessive heat build-up. ‘It’s a proven fact that a comfortable worker is a productive worker, yet many industrial managers in both large and small operations do not realise they can improve working conditions immeasurably in hot buildings by simply controlling air movement,’ says Wim Dessing, Managing Director of Apex Strip Curtains. The company offers a range of products that make it easy to control the working environment. Locally manufactured Apex SR 900 high impact traffic doors are insulated impact resistant swing doors, designed for efficient long-life use in high traffic, impact-opening applications.

High impact traffic doors Built to withstand traffic from both pedestrians and forklifts, the Apex SR 900 door is a fully gasketsealing heavy-duty impact swing door which opens easily and closes under its own weight. Insulated with polyurethane, this robust impact door is ideal for application where temperature control is vital, or where ingress of dust, insects or noise must be prevented.

Another popular option, Dessing says, is the range of high speed roll-up or fold-up doors which includes the traffic and sector units. All offer rapid automated opening and closing, as well as efficient thermal insulation and a highly effective wind barrier. The doors are aesthetically pleasing in a range of colours and are made from durable, flexible polyesters and PVCs. The electronic componentry is modern, compact and self-contained to allow quick and easy installation in doorways and passages. A variety of activation options, from floor mats to beepers, is available and all doors have a back-up emergency opening capability. Unless otherwise required, doors have a transparent panel for through-vision.

Strip curtains Strip curtains are a very inexpensive way to cover a door opening to prevent the ingress of hot air yet still allow easy passage. Strips are made from specially formulated PVC that doesn’t become brittle with use and stays transparent for through-viewing and added safety.

Photos by Apex Strip Curtains

The door retains its physical properties in both high and low temperature environments and is impervious to moisture, acid, animal fats, insects, salt solutions and petroleum products. Besides being durable and robust, this door provides excellent sound attenuation.


Apex Strip Curtains T +27 (0)11 452 8723 E W

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Photos by Swartland

Fenestration renovation Installing new windows can make a big difference when renovating a home. For best results it is advisable to select windows that not only match the home’s architectural style, but that also incorporate features that will improve its energy efficiency as well. Cobus Lourens from leading window and door manufacturer, Swartland, offers some advice on how to approach this. Before starting, there are two major factors to consider: 1. Appearance - Look for windows that capture the look required. Do they suit the style of the house, and do they open and close the way that is needed? 2. Energy efficiency - Are the windows compliant with the SANS 10400 National Building Regulations? All Swartland’s windows are SANS 613 certified and compliant. They have all been tested for deflection, structural strength, waterresistance, air-tightness, operating forces, and the best possible energy efficiency. The easiest way to select windows that deliver on both appearance and performance, is to follow these three easy steps:

Choose your style The size and the aesthetic look of the windows


required are an easy decision to make. However, it is imperative to consider the operating style as well. Cobus explains: ‘The operating style is the way your windows will open and close. It not only influences the functionality of the windows themselves, but also impacts on their energy efficiency. ‘Fixed or picture windows offer the best energy efficiency as they don’t open. Double glazed windows are also a great choice for improving a home’s insulation. Swartland’s Cape Culture range of doubleglazed timber windows have been rated as the most energy efficient windows in South Africa through an independent test by the South African Fenestration and Insulating Energy Rating Association (SAFIERA).’ The various types of windows styles include: • Fixed - A fixed window is basically a casement or awning window that doesn’t open.

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DOORS & WINDOWS BUILDING SYSTEMS • Slider - The slider window has one or more sashes that slide open horizontally. • Sliding sash - With a bottom sash that slides up, the sliding sash window allows controlled airflow into your home. • Picture - Like fixed windows, picture windows do not open. It is best if they offer a low-profile frame to maximise the glass surface, allowing for vast and uninterrupted views to the outdoors. • Casement - Hinged on the side, casement windows swing outwards like a door, providing excellent air circulation in the home. • Bay - Bay windows allow one to expand the area in a home. Made up of a combination of windows attached at an angle, these windows extend beyond the wall to open and enlarge the room in question. • Awning - An awning window is a casement window that is hung horizontally. Hinged on top, it swings outwards, shielding from the rain, while always providing good ventilation.

Choose the frame material Aluminium windows and doors, including the KENZO range, are becoming an incredibly popular choice for homes and commercial buildings. They are best known for their exceptional durability; however, they also boast modern good looks, let in plenty of light, are exceptionally low-maintenance, and do not rot, mould, peel, fade or corrode. They also boast very slim profiles. ‘Due to the inherent strength of aluminium as a material, you need less of it to securely hold the glass and hardware. For this reason, you can fit a lot less frame and include a higher proportion of glass, which in turn, affords you the best and most unhindered aspect or views to the outdoors,’ says Cobus. While timber windows are an attractive feature in any home, timber is also an incredibly good insulator and also should last for a long time. For yearly maintenance, Cobus recommends the use of a waterbased sealant as a low-maintenance solution. ‘There are a number of benefits associated with using water-based sealant on your windows, include that it is much easier and quicker to apply, it is ecofriendly, quick drying with low VOC levels, and has UV inhibitors to protect against sun damage,’ he explains. Cobus says that to save time, one can always opt for Swartland’s Ready-2-Fit range of timber windows which come pre-sealed and pre-glazed directly from the factory.

Choose the glazing There is a wide variety of glazing options to choose from and by understanding a home’s heating and cooling needs, one can determine the overall glass selection priorities. ‘It is possible to combine energy efficient glass with other options, including glass that reduces noise, enhances the occupant’s safety from intruders, and even glass that offers a high level of protection from veld fires, to create the perfect solution for your particular home,’ says Cobus.

Different types of glazing • Clear float glass is the most basic material used for windowpanes and offers no additional performance benefits in terms of insulation or reduction in solar heat gain. It can also shatter and may produce dangerous shards of glass. It cannot be used for large format windows or doors. • Tinted glass absorbs and re-radiates solar energy, reducing sun glare, heat and providing climate control. It can absorb as much as 45% of incoming solar energy. • Reflective glass offers a greater level of solar control when compared to tinted glass. It is made by adding a metallic coating during the manufacturing process to create a highly reflective appearance. • Toughened safety glass is made from clear float glass that has been strengthened via a thermal tempering process. Apart from increased strength, toughened glass will shatter into small pieces, which makes it ideal for large windows and doors. • Laminate glass comprises two or more layers of glass that have been permanently bonded together with an interlayer. The lamination results in the glass panels holding together in the event of breakage and is classified as Grade A safety glass. The interlayer can be selected to deliver special performance characteristics, such as improved insulation, security, and sound insulation for example. • Low Emissivity glass, better known as Low E glass, has a microscopically thin coating of metal oxide on the glass surface that allows the sun’s heat and light to pass through the glass, while at the same time, blocking heat from escaping the room. This reduces heat loss and improves insulation.

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Case study - Energy efficient windows at cluster development Van Acht Windows recently manufactured uPVC windows and doors using the REHAU uPVC profile system, for a cluster development in Bryanston, Gauteng. This new development in Bryanston has focused on providing eco-friendly homes. Besides having heat pumps and solar panels, each of the properties in the cluster development is fitted with double-glazed uPVC windows and doors to enhance the energy efficiency and cost savings.

Casement windows and sliding doors The installation consisted of about 150 casement windows and triple sliding doors which were expertly manufactured by Van Acht Windows, a REHAU authorised partner, using REHAU’s 60mm uPVC profile system. REHAU uPVC windows and doors also offer a host of other benefits, such as sound reduction, increased safety and low maintenance. Technical support was offered to Van Acht Windows by Mark Smith and Tony O’Neill, technical staff from REHAU. Photos by REHAU

Project detail Location: Johannesburg, South Africa System: REHAU 60mm uPVC Window System Architect: Stefano Marussi Client: Hennie Potgieter, HAP Projects



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Gen sets power gas ambitions

The company’s range of highly efficient and innovative power generators is now available in South Africa and neighbouring countries through local supplier Energas Technologies. Depending on customer requirements, Energas will offer a wide range of generator sets with or without heat recovery and co-generation; the ENERGIN, ENERGIN GEN+ and ENERGIN CHP units, ranging from 115 to 500kW. Generator sets are designed for power production in island or parallel mode with other generators and/ or the utility. Based on the R Schmitt Enertec M Series Gas engines, fuel options include natural gas, biogas, wood gas and LPG. The gen sets feature heat recovery from engine jacket water, lube oil and first stage mixture cooling. Heat recovery in the GEN+ units increases the overall engine efficiency by 28% by using the thermal energy. More than double the energy used to generate electricity is wasted in the form of heat discharged to the atmosphere. ENERGIN CHP units enable onsite electricity generation that captures heat that would otherwise be wasted to provide useful thermal energy, such as steam or hot water. Steam and hot water can be used for several processes such as space heating, cooling, domestic hot water and industrial processes. Through ENERGIN CHP waste heat recovery, the total energy efficiency is increased above 90% compared to 42% of conventional technologies where only electric power is generated. According to Laetitia Botha, Energas Technologies Product Engineer, the new range of gen sets complements their company’s existing product offering. ‘We specialise in the supply of specialised equipment to the natural gas industry in South Africa and neighbouring countries. Generation of power by making use of natural gas, biogas or waste gas, complements the existing product range in our stable,’ explains Botha. The generator sets can be used for pure electric power generation or a combination of electricity and

Photo by Energas

A leading supplier of specialised equipment to the natural gas industries in Southern Africa has entered into a distribution agreement with R Schmitt Enertec, a German manufacturer of gas engines, generator sets and cogeneration sets, to offer a range of highly efficient power generators to the local market.

thermal energy generation when waste heat recovery is included. Typical applications are diverse and include: Industrial (chemical, refining, pulp and paper, biogas, printing, food processing, glass manufacturing, drying plants and RDF gas); commercial buildings (hotels, health clubs, nursing homes and office buildings); residential (apartments, planned communities and housing developments); institutions (hospitals, prisons, colleges and schools); as well as municipal (district energy systems and wastewater treatment facilities). A unique capability of Enertec generators is that they can also generate power from weak gas supplies. Most engines can only work with gas supplies of very good quality, but the ENERGIN engines can adapt according to the gas analysis. ‘We can make the necessary adjustments as the manufacturer of the gas engines,’ says Botha. ‘Electricity in South Africa is no longer as cheap and reliable as it used to be. Industry needs to become more energy efficient and independent with its energy usage.’

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Resin floor finishes for food producer

Photo by Flowcrete

The large-scale, international food producer RCL Foods injected vibrancy and energy into its new Durban office by installing a selection of brightly coloured resin floor finishes.

As one of Africa’s leading food producers, supplying numerous household brands, it is vital for the company to portray a high-end image, so setting high standards for its office appearance is important. Located in Westville’s Westway Office Park, the new building was designed to provide a creative environment using materials that would also meet the specific demands of each area. This design ethos included specifying a variety of floors that would cleverly meet both the aesthetic and operational demands of the site. According to the floor finish supplier, Flowcrete, this was most evident in the test kitchen. A focal point of the new office, the kitchen needed to be a visually stunning showroom as well as a practical cooking area. To achieve this, 311m2 of a bespoke blue, matching RCL Foods’ corporate colour, called Flowfresh SR Ultra, was applied to link the room to the corporate visual identity.

The material was ideal for the task at hand as a very durable polyurethane system able to survive the temperatures, spillages, chemicals and impacts inherent to a busy kitchen environment. This HACCP International certified system provides the highest possible hygiene levels by incorporating the antibacterial additive Polygiene® within the floor, enabling it to eliminate up to 99.9% of bacteria in contact with the floor finish. To extend this colourful interior design scheme across the building, 272m2 of Peran SL Fruity flooring was supplied for the 18 male, female and disabled toilets. This system allowed the designer to use an extensive palette of colours, including Tomato, Kiwi, Grapefruit, Tangerine, Spearmint and Plum, so that no two toilet facilities are the same. The seamless and impervious nature of Peran SL Fruity makes it quick and easy to clean, helping to ensure that the floor maintains a fresh and unblemished appearance. The robust credentials of this self-smoothing epoxy system ensure that it will withstand the foot traffic, cleaning chemicals, scuffs and scrapes that it will inevitably be exposed to. To guarantee that visitors and staff would be immersed in a colourful and energetic environment from the second they set foot in the building, a decorative floor was installed in the lift lobby on each level of the building’s three-storey car park. A total of 378m2 of the epoxy resin floor coating Peran STB in a sleek, dappled grey colour, was applied in the lobby areas to provide a pleasant transition from the car park to the office. The combination of floor finishes meant that RCL Foods could rest assured that its new offices would have a vivid, contemporary and on-brand surface underfoot that would be able to withstand the various challenges that such a busy and unique office space would throw at it.

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Looking back but moving forward By Stephanie Forbes, Kitchen Specialists’ Association

When Carte Blanche needed an authority on the kitchen industry to speak on camera about the state of the industry, they came to the KSA. This is an indication of the KSA’s growing profile, as well as the desire from consumers for a formalised body they can deal with when embarking on large kitchen projects. Our consumer awareness video was launched and has been a fantastic tool to educate consumers and industry professionals alike about what the KSA does and why they should make use of KSA members. Links to the video can be found on the KSA website. However, with the growing awareness of the KSA has unfortunately come misuse of the KSA logo by unscrupulous operators to try and mislead consumers into believing they are KSA members or are somehow associated with the KSA. But, with every problem something positive can be drawn and this has led to us redeveloping our corporate and digital identity. Complaints have become more problematic and harder to resolve and to ensure we are always delivering the best to both the consumer and our members, we undertook to empower the KSA regional representatives by sending them on a mediation course which will see them registered with the SA Board of Mediators. This will assist in giving more gravitas to our dispute procedures and increase our levels of professionalism. Greater engagement with our members and the industry in the Garden Route and the Eastern Cape has been very well received by members and nonmembers alike. Our exclusive agreement with Decorex was signed early in 2016 and continues to be an important part of the KSA’s marketing and development. This year showcased a new-look exhibition stand for the KSA based on the slogan ‘Does your kitchen contractor tick

Photo by KSA

2017 was the year for growing the Kitchen Specialists’ Association (KSA’s) public profile. With increased consumer and industry awareness about the KSA and what we do, the KSA team was faced with more new challenges, situations and requests than ever before. This made the year both challenging and exciting with the development of new opportunities, procedures and protocols to assist us in managing increased awareness.

Stephanie Forbes

all the right boxes’. The new look and slogan was well received by the public and industry professionals alike at the show. Moving forward, 2018 will see us continue the work we have started, addressing interest in membership from new sectors and the new KSA CI. Most importantly, we will support our members and help them promote their membership, while working to continue increased awareness of the KSA with consumers and industry professionals. Due to disputes becoming more litigious, the National Committee has decided that the KSA will not be undertaking non-member site reports in 2018. Instead, the KSA will contact the Office of the Consumer Protector and arrange to divert non-member disputes to them and then offer our assistance to the OCP.

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Photos by Lighting Warehouse

Trendy lighting for chic places


Looking for an easy makeover? A local supplier shares some of its trendy lighting ideas with To Build. The Lighting Warehouse has revealed its ‘ABC of vintage industrial chic’ by launching three stunning new ranges of industrial vintage-inspired metal wall lights with rustic, weathered finishes that are bang on trend. According to the company’s Melissa Davidson: ‘Lighting trends are fuelled by the arrival of new materials and novel forms, along with the everchanging technological innovations and of course the inspiration of human creativity and modern interior


1. The Jozi range Inspired by the City of Gold, the Jozi is a pendant light, semispherical and made from copper mesh.

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2. Maboneng concepts - taking its cue from the Maboneng Precinct in Johannesburg which has evolved into a collaborative hub of culture and lifestyle that entices curiosity, encourages exploration and promotes a sense of urban togetherness – aptly named the Maboneng lighting range 4. Hanging pendants - Tris-belle is a 3-light bar pendant intended as a focal feature in any kitchen.

3. Wall mounted lamps inspired by Ashbourne, Bath and Cumbria.

design trends. What was fresh and inspiring two years back may not necessarily be stylish and interesting today. Some trends that were popular decades ago seem to be making a big comeback. We suggest you can use these examples from our range to replace tired looking fixtures throughout the home for a trendy update.’


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Photos by ITC-SA


Designing a fully compliant roof structure as manufactured by a professional member of the ITC-SA.

Roof trusses The roof structure is arguably one of the most important construction elements of any residential building as it protects the property, finishes and inhabitants from the elements. It is also one of the largest, heaviest and most costly structural components in any home design. The Institute for Timber Construction South Africa (ITC-SA), South Africa’s professional body for the engineered timber structure industry, offers insight into the benefits of using prefabricated roof trusses for roofing and how to prevent costly and potentially dangerous situations arising from having a noncompliant, site-manufactured roof installed by an erector that is not accredited by ITC-SA. While it seems logical to expect that much planning, design and know-how would be invested in a construction project to create an aesthetically pleasing, sound structure that can safely carry the induced loading and offer acceptable longevity and aesthetic appeal for the lifespan of the building, this is not always the case. Unfortunately, many building owners choose price over quality with regards to both workmanship and materials, which can lead to costly and disastrous situations.

Accredited fabricators Every ITC-SA-accredited fabricator is audited on an annual basis in line with quality, competence and compliance to inter alia the South African National Standards – SANS 10243: The Manufacture and Erection of Timber Roof Trusses. An annual Certificate of Competence is issued by the ITC-SA to confirm that

the fabricator complies with the National Design and Material Standards and the ITC-SA’s requirements. Prefabricated roof trusses shall, at all times, be in accordance with the rational design requirements given by the engineer as well as the SANS requirements below. To confirm compliance, an engineering certificate will be required on completion of any roof structure: • SANS 10400 - Part L • SANS 10243 • SANS 10163 • SANS 1783 - Part 1 and 2 • SANS 51075 • SANS 3575 • SANS 10096 Prefabricated roof trusses can only be approved when a rational design is available, confirming that the material and truss design meet or exceed the SANS requirements. The essential elements to be considered in ensuring a sound timber roof structure, include: 1. The timber used must be structural timber and must comply with the material and, where applicable, treatment requirements, to meet the design intent. Structural timber needs to be marked with red ink on the face of the timber at 1m intervals. If it does not

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BUILDING SYSTEMS ROOFING bear these structural markings, it must be rejected. Consumers should be aware of unmarked timber or timber with black crosses at the end, as this marking, or lack thereof, confirms that the timber in question is not structural timber. 2. The designer must create an accurate cutting bill. The cutting bill will dictate the exact lengths and angles at which the timber must be cut for proper assembly. 3. The right engineering systems must be used. The ITC-SA provides accreditation for systems software suppliers that are recognised for meeting all South African prescribed design and manufacturing requirements. The metal connector plates used must be supplied by the specific software system that was applied in the design. In addition, the metal connector plates must be the right size, positioned correctly and located as per the standard methods and tolerances prescribed by the System. In addition, it is critical to note that teeth direction on the connector plate(s) is also important – only a cutting bill can confirm this. 4. All connections and bracing details must be in accordance with the rational design intent. In other words, everything that holds the structure together, such as the number of nails, bolts, washers, brackets and cleats, must be in accordance with the engineering design. All necessary bracing accessories must be stipulated on the design drawings. Some of the most common pitfalls with regards to new timber roof structures include: • Choosing price over quality - Many consumers try to save on the roof construction and often end up spending more time and money remedying the resultant consequences that arise from using substandard materials and workmanship. Bear in mind that to create a professional and sound result, you will need to employ professional, knowledgeable and experienced individuals, which will no doubt cost more initially than unqualified individuals, but which will save a lot of money and stress down the line. • Choosing the right engineer - Use an Engineering Council of South Africa (ECSA) registered professional, who is accredited with the ITC-SA to design and certify the timber roof structure. Ensure that your chosen professional has good working knowledge of timber and roof construction. • Prefabricated timber roof trusses are preferred - Prefabricated timber roof trusses are cut by


advanced, specially designed machinery and are therefore far more accurate than their hand-made counterparts. Prefabricated trusses covered by a rational design, will also use less timber and will comply with all regulatory requirements, assuming they are designed by an ITC-SA accredited professional. In all industry-related tests, the ITCSA has found site-made timber trusses to be more expensive than prefabricated timber roof trusses. • Guarantee - By using reputable fabricators, such as those registered with the ITC-SA, the consumer immediately has peace of mind that these companies or individuals are regularly audited and monitored, and that should something go wrong with their workmanship, the consumer will have recourse in the form of a manufacturing warranty. Part of the membership requirements for Engineers accredited by the ITC-SA is that they all carry their own Professional Indemnity insurance cover for any professional negligence on their part with regards to the specific structures they sign off and for which they take responsibility.

Prefabricated timber roof trusses are safer and cheaper Internal investigation and findings by the ITC-SA have confirmed that 90% of hand- or site-made trusses do not comply with the relevant building regulation and SANS material and design specifications. Research suggests that hand- or site-made timber roof trusses are on average up to 20% more expensive than pre-manufactured timber roof trusses. Prefabricated timber roof trusses come with guarantees in the form of a manufacturing warranty and an engineer’s design certificate, which the owner may call upon to have the roof structure repaired. It is important to note that the so-called ‘engineer’s certificate’ so often referred to on quotations refers to the certificate which certifies that the timber structure has been erected according to the design intent. In addition to this, the owner should insist that the fabricator prove that the roof structure has been designed according to a rational design.

Institute for Timber Construction (ITC-SA) T +27 (0)11 974 1061 E W

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Safintra ‘Loks’ Down Roof – for peak performance Respected roofing system supplier, Safintra, talks about its exclusive Saflok 700 concealed fix roofing system.

Photos by Safintra

Concealed fix roofs are used for large or low slope roofs and provide three critical benefits over pierced fix (or screwed down) sheeting systems, these being: 1. The sheet has no holes in it (because they are held down by a clip under the sheet). 2. Sheets are rolled on-site and continuous lengths can be installed with no end laps. This is vital for watertightness, particularly on a low-slope roof. 3. The sheet can expand over the clip: unlike sheeting fastened with a screw (where the screw is fixed, and cannot move, and will shear off).

Specifications For confident wind resistance and brutal strength, the new Saflok 700 clip ticks all the boxes: • The clip is made from 0.8mm thick material for the base plate and anchors • S purs engage under the shoulder of the sheet The clip has been tested by independent engineers in accordance with the requirements of SANS 10237, and has a stunning 2 Kpa factored resistance to uplift meaning it performs to SA design wind speeds with complete confidence.

The secret is in the clip From a performance point of view, however, the secret of robust roof life and water-tightness is not that the sheet is secured by an unseen clip, but in the engineering of the clip itself. As the clip is the primary component holding the sheets down, the clip must engage fully with the profile at its shoulders, and over side laps, to remain locked down and watertight in high winds and rain. Product fact sheets and further information available from the supplier – details on the right.


Safintra Engineering Department T +27 (0)11 323 6300 E W

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Tiling trends for walls According to a local supplier, the time is right to introduce some six-sided style into your home this year, with the addition of hexagon tiles – from ceramic, through to porcelain and mosaics. According to the market, hexagonal tiles are hot and bang-on trend for 2018.

Photos by Bathroom Bizarre / ROCA

Hexagonal or hex tiles were hugely popular in the 1920s and 1940s as floor tiles. Although they were available in a variety of simple colours, the most popular ones were black and white mosaic hex tiles. These could be laid in a variety of interesting formations by a skilled artisan. Today, hexagonal tiles are making a big comeback and are being used to great effect as both wall and floor tiles to create beautiful features throughout the home. Johnny Lamprecht from leading sanitaryware and tile supplier, Bathroom Bizarre, says: ‘Hexagonal tiles have been gaining popularity for a while now, largely due to their interesting organic honeycomb shape. The difference with modern hexagonal tiles is that they are now available in a variety of colours, textures and

materials. Since designers have started embracing this interesting shape, so has the variety of sizes, colours, and textures grown to accommodate tiles that would suit virtually any décor style, from contemporary to traditional.’

Top 5 tips for using hexagonal tiles 1.) Simple and stylish - ‘The interesting honeycomb shape of hexagonal tiles will make a huge impact on the look and feel of any room. As such, you don’t need to go too overboard with colour, texture or design. When selecting your tile, remember that the grouting is almost as important as the tile, as it can make a huge impact by visually defining their interesting shape. You can choose a grouting in a similar colour for a more subdued effect, or you can select a contrasting grout that will really make the shape pop,’ says Johnny. 2.) Creative layout - If your choice of hexagonal tiles already has a design on it, then this will dictate the way it must be laid. However, hex tiles in plain tiles open a whole world of creative layout options, notes Johnny. ‘By combining a few colours and getting a little creative – you can create a wide variety of stunning designs. From geometric floral patterns, or to a more contemporary shaded effect, working from light to dark – the sky is the limit for visually interesting creations!’ he explains. 3.) Divine designs - Although the endless creative layout options for hex tiles in plain colours can be dramatic and fun, add pattern to the equation and you can up the stakes. Johnny explains: ‘There has been a huge revival of patterned tiles over the last while, and it is a trend that is affecting other trends – one of them being hexagonal tiles. Today, there are a wide variety of hexagonal tiles in incredibly visually interesting geometric designs and colours, for a truly interesting result. However, the designs are not just limited to interesting colours and shapes, but hexagonal

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tiles are also being manufactured with realistic wood or natural stone finishes that can be used to great effect for all sorts of interesting applications – from large indoor or outdoor floors, interior walls, splashbacks, showers or feature walls for example.’ 4.) Plain and patterned - We have spoken about the benefits of both plain and patterned hexagonal tiles, but Johnny notes that the true magic begins when you use them together: ‘Patterned hexagonal tiles can be used to create a central “rug” pattern, surrounded by plain tiles, or vice versa – a patterned border with a plain inner “rug” effect. It is an unbelievable effective way to define various spaces, which is always useful in open-plan or loft-type layouts.’ 5.) Contrasting lines - The appealing shape of hex tiles can be used in conjunction with tiles


with a more linear shape to create interesting focal features. Johnny explains: ‘You can create incredibly interesting installations by combining tiles of different shapes in one room. Imagine using hexagonal tiles to create one feature wall in the bathroom for example or put a panel of hexagonal tiles on the floor and bath surrounds. However, if you choose to combine two different shapes, it is advisable to blur the lines between the different tiles by cutting the secondary finish into hexagons. Although this will take a lot of skill on behalf of your tiler, if it is successfully achieved, the effect is simply breathtaking!’

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Plan, Design, Build, Interior & Exterior Décor

MATERIALS Adhesives...............................................104 Brick & Paving....................................113 Cement & Concrete..........................118 Insulation.............................................120 Timber & Decking...............................122

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Resurrecting a disused bridge When Sujean Property Investments acquired 120 000m2 of land surrounding an old disused railway bridge, they were required to completely refurbish the bridge prior to re-developing the area into a modern industrial Mega Park. Hence, an extensive refurbishment project was required on the old, freestanding Serepta Bridge in Bellville South, Cape Town.

Photos by Sika

Consulting engineers from Aurecon and Ingerop, South Africa, recently specified eight Sika products for restoration work on the concrete. Exeo Kholeka was contracted for the project commencing in February 2017. Prior to filling internal voids and cracks in the bridge walls, 160 litres of Sikadur-AP was used to close all surface cracks. An all-purpose, two-component epoxy paste adhesive, Sikadur-AP provides excellent adhesion on a wide variety of materials and is ideally suited for vertical and overhead applications. With a convenient 1:1 mixing ratio, it is easy to apply on either dry or damp surfaces and provides high abrasion resistance.


Spalling To treat spalling on the bridge, 30 kits of SikaTop Armatec-110 EpoCem was applied. As a cementitious, epoxy resin compensated, three-component coating material with corrosion inhibitor, SikaTop Armatec-110 EpoCem meets the requirement of EN 1504-7 and is certified for application under dynamic load conditions. Numerous advantages provided by this product include extended open times for repair mortars, excellent adhesion to concrete and steel and good resistance to water and chloride penetration. Thick layer concrete was repaired using 50 bags of Sika MonoTop-615 HB, a high build, cementitious,

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ADHESIVES MATERIALS polymer-modified, one-component repair and reprofiling mortar, containing silica fume and Ferrogard corrosion inhibitor. With excellent workability characteristics as well as excellent thixotropic behaviour, Sika MonoTop-615 HB is especially suited for vertical or overhead applications and provides good resistance to water and chloride penetration.

Waterproofing Prior to waterproofing the bridge, injection specialist, Dampmen was sub-contracted to inject 600 litres of Sikadur-52 ZA, a two-part, solvent-free, low viscosity injection liquid, via ports into the bridge structure. Sikadur-52 ZA not only forms an effective barrier against water infiltration and corrosion-promoting media, but also structurally bonds concrete sections together. The product is suitable for use on dry or damp surfaces, even in low temperatures and hardens without shrinkage. Some cracks in the bridge were so large that SikaGrout-212, a one-component, ready-tomix, free-flowing, shrinkage-compensated expansive grout was used prior to injecting Sikadur-52 ZA. The sub-contractor then coated the entire bridge with 300 kits of Sikalastic-152, a two-component, fibre-reinforced mortar based on cement modified with special alkali-resistant polymers containing fine particle size, selected aggregates and adequate additives. Sikalastic-152 provides flexible waterproofing and concrete protection all in one product.

Interior walls reinforced with CFRP To cover all their bases and ensure absolute structural integrity of the bridge, engineers specified Sika Carbodur S512 plates to be bonded onto the interior vertical walls using Sikadur-30, a thixotropic, structural two-part adhesive based on a combination of epoxy resins and special filler. Extensive testing and approvals of Sika Carbodur plates are available from many countries worldwide. Dampmen attached approximately 50, 4.2 metre lengths of Sika Carbodur S512 plates to the walls. Sika Carbodur plates are pultruded carbon fibre reinforced polymer (CFRP) laminates designed for strengthening concrete, timber, masonry, steel and reinforced polymer structures. They are used to improve, increase or repair the performance and resistance of structures for increased load carrying capacity, damage to structural elements, improvement of serviceability and durability, change of the structural system, resistance to possible

Numerous advantages include extended open times for repair mortars, excellent adhesion to concrete and steel and good resistance to water and chloride penetration. events such as earthquakes, and to repair design or construction defects. The high strength laminates are non-corroding, provide excellent durability and fatigue resistance and are supplied in lightweight rolls that are easily transported and installed. The combination of all these renowned Sika products together with the Sika Carbodur system will significantly increase the longevity of the old Serepta Bridge.

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Photo by Hydraform


Inspired by Earth Charter Inspired by the Earth Charter which comprises four pillars - respect and care for community of life, ecological integrity, social and economic justice, as well as democracy, non-violence and peace – the Earthrise Trust was founded as a non-profit social initiative, dedicated to building a new development paradigm that advances the ideals and principles enshrined in the Charter. As part of its founding principles, the Earthrise Trust has since committed to rebuilding and guardianship of the historic Rustlers Valley Farm in Ficksburg in the Free State, South Africa, as a pilot development space to take the ideals of the Earth Charter forward. ‘The 273-hectare farm was destroyed by a fire in 2007 and the major shareholder passed on in 2008. Although we initially looked to build our conference centre at the countryside venue, we have now undertaken to help a community, called Naledi Village, residing at the farm as part of our initiative to address the structural inequality, poverty and marginalisation,’ says Gino Govender of the Earthrise Trust. To facilitate the development of a sustainable community through eco-farming, the Earthrise Trust acquired a Hydraform blockmaking machine to help the community self-build the much-needed houses. Proper housing was a necessity to satisfy the basic social and human needs of the community’s population. ‘Through engagement with government officials we heard about Hydraform’s alternative building solutions and we eventually consulted with them in June 2016,’ says Govender. ‘We brought the Hydraform team to the farm to demonstrate the capabilities of their blockmaking machines. We also had our own team travel to Hydraform’s offices in Boksburg, Gauteng to learn more about the technology and how it could meet our community development targets.’ After an extensive consultation process, both Earthrise and the Naledi Village community were not only thrilled by Hydraform’s technology, but most importantly the company’s understanding that the

machines were sought for a good cause, which was to set a rural community on a self-reliant sustainable economic and social path. ‘Hydraform understood that this was not just about Earthrise, but it was more about the Naledi Village and they went out of their way to negotiate a very good price which included free transport and training,’ explains Anton Chaka, the Naledi Village Chair. Initially the machine was used to produce blocks which were used in all the new construction projects, including an ablution facility, the Naledi Arts Centre and toilets for the local primary school. ‘To date, the team has produced about 30 000 blocks since we started production with our M7MI. Once we get the title deeds to our land from the government, then the next big project for each household is to save money and build permanent homes. This is the Naledi of the future,’ says Chaka. For Chaka, the beauty of this machine is its mobility which allows it to be moved from one site to the other. The Hydraform M7MI is a popular choice with most Hydraform clients. The machine includes a compression chamber, diesel engine and a pan mixer, all mounted on a robust trailer for transport. The machine is ideal for remote areas and can produce 2 200 blocks per eighthour shift, equating to approximately 57m² of walling a day and 12 x 50m² houses a month.

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Photos by Revelstone


Pavers for water wise gardens A Cape-based stone paver manufacturer shares some ideas with readers about converting a garden to water-wise using pavers. The South African climate can be unpredictable at the best of times and designing a water-wise garden is a good idea. Unlike rainy and grey European countries, some parts of South Africa are prone to dry spells which wreak havoc on a garden as water restrictions make it difficult to keep plants alive. Here are some ideas about how to redesign an outdoor space into a water-wise garden that is not affected by water shortages.

Ravine straight edge paver This natural and traditional paver offers the surface profile of a quarried slate and comes in a wide range of textures and natural-looking colours. This is an attractive feature for those who seek an outdoor area that offers a rustic aesthetic and emulates real stone with a symmetrical and clean finish. Ravine straight edge pavers can be used in a variety of different ways in a water-wise garden. Place the pavers in either a formal and elegant look or a 4-size mixed pattern to create an authentic rustic and textured appearance.

Ravine random edge pavers This paver is perfect for creating a soft landscape aesthetic in outdoor areas such as courtyards, garden patios and pathways. With the drought disaster in the Western Cape, gardens have been reduced to dust bowls. Use this paver for parts of the garden where lawn does not grow, or which has poor drainage. Ravine random edge pavers are available in many different colours and finishes, perfect for a unique outdoor space and water-wise garden.

Ridgestone step paver This is an example of a custom-manufactured paver used to create large floating outdoor stairs or stepping stones. The step paver covers a large surface area and turns a drought–ridden outdoor area into a waterwise garden that is able to hold on to its aesthetic appeal. The paver is suited for areas that require straight lines and sleek design, i.e. stepping stones and pathways.

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Photos by Revelstone

Ravine garden step has an attractive non-slip finish which is perfect for any outdoor space. This paver is not only cost-effective, but it minimises the need for frequent maintenance due to its unique finish.

Devon step paver Turn a dull and lifeless outdoor area into a sleek, elegant and water-wise garden that not only uses less water but looks attractive. For outdoor spaces with a modern design, Devon step pavers are perfect for adding sleek stepping stones or large floating stairs leading to the garden. This custom-manufactured paver has a large surface area with straight, modern lines. Revelstone offers Devon step pavers in a light Limestone paver or regular earth coloured paver.

Finish off Finish off by scattering small pebbles and stones in the gaps between the pavers to create a polished look. To Build thanks Revelstone for sharing the above tips with readers.

Ravine garden step For an elegant but hardy addition to a water-wise garden, the Ravine garden step is a precast paver that is perfect for creating an easy and cost effective outdoor area. Spruce up outdoor areas such as the patio, entrances and even around the pool. The


Revelstone T +27 (0)21 761 9739 E W

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Bridge Park Century City Jura Paver

Cape Town International Airport Viking Random Cladding

Silo 5 V&A Waterfront Jura Cobble

Silo Hotel V&A Waterfront Devon Cobble

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Cement major benefits architecture awards In this edition, To Build pays tribute to cement giant, PPC, for their continued imaginative sponsorship of the annual Imaginarium Awards, aimed at helping establish young emerging artists and designers in their respective industries. programme includes presentations, film screenings, parallel sessions, student design sessions and professional practice sessions.

New awards – stand-alone event The new PPC Imaginarium Awards for Architecture will be made annually and will remain a stand-alone event that is held separately from the rest of the PPC Imaginarium Awards. The PPC Imaginarium Awards has six entry categories in total: fashion, sculpture, jewellery, film, industrial design and architecture. For the newly formed PPC Imaginarium Awards for Architecture, all architecture schools in South Africa were invited to take part and the competition follows the same format as the Des Baker Award. The Des Baker Award allowed students to explore meaningful, practical change in their city by designing an array of small interventions. The two best projects from each institution were selected by the lecturers and submitted.

The theme Creative brilliance in concrete – from Imaginarium 2016


Photos by Gareth Griffiths

In 2018, the popular PPC-sponsored programme gears up a notch by way of an announcement that a long standing architectural awards programme will be incorporated into the Imaginarium programme. Following 32 years of existence, the esteemed Des Baker Award for outstanding architectural design by students has been terminated by the sponsors to be replaced with the PPC Imaginarium Awards. From 2018 the programme will be known as the PPC Imaginarium Awards for Architecture. The work of all entrants will be displayed at the Architecture ZA 2018 (AZA18) conference from 3-5 May 2018. The winner and runner-up will be announced at an evening event on 3 May 2018. PPC is a longstanding key sponsor of AZA18, which takes place at 012Central, Pretoria. The event

The theme of AZA18 is ‘WeTheCity: Memory & Resilience’. Focus points will include heritage, human settlement and environmental potential, all of which complement the focus of the 2018 PPC Imaginarium Awards for Architecture.

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Retrofit guide – making it easy

This Guide is intended to provide a basic overview of Energy Efficiency Regulations, requirements and possible interventions (retrofitting) that relate to retrofitting insulation to improve thermal efficiency in existing buildings. This publication is intended as a useful reference to architects, building designers and building owners. The draft National Energy Efficiency Strategy (NEES) proposes various measures and implementation targets, varying between three months to five years, depending on ease of implementation. The abovementioned is to reach the 20% reduction of energy consumption of the residential building stock by 2030. These measures include: • Tightening of building standards • Tax incentives for building retrofits • Energy Performance Certificates (EPC’s) for residential buildings The proposed measures will certainly have an impact on the property market. The purpose of an Energy Performance Certificate is to record and show how energy-efficient a property is. Shown as a chart, it uses a similar rating system to ratings provided with domestic appliances, for example, washing machines and fridges. The certificate will provide a rating of the property from A to G, where A is very efficient, and G is very inefficient. ‘There are several options that a homeowner or building owner can consider to reduce heat loss or gain, including adding, or retrofitting, insulation in the building. Installers and other interested parties are invited to contact the association to get a copy of the guide,’ says Des Schnetler, TIPSASA Chairperson.


Photo by TIPSASA

Industry association, TIPSASA (Thermal Insulation Products & Systems Association SA), launched the Thermal Insulation & Energy Efficiency Retrofit Guide at the SAEEC (Southern African Energy Efficiency Confederation) Conference in November last year.

The purpose of an Energy Performance Certificate is to record and show how energy-efficient a property is.

TIPSASA T +27 (0)861 000 334 +27 (0)12 663 1480 E

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Project: House Memel Situated on a cattle farm just outside Memel in the Free State, House Memel is a retirement dream brought to life with timber frame construction. With difficult building terrain underpinned by heavy clay conditions, a timber structure was as much a practical choice as it was an aesthetic one. Having bought the land several years prior, the client sought to build a structure on the farm that was dedicated to both leisure time in the country and entertaining friends and family. This vision of function strongly informed the design brief, which came to pivot on a large double-volume cathedral-type space at the centre.

Design ‘The design of House Memel took shape from the inside out with the entertainment area a central aspect of the design motivation and as a result, its physical form,’ says Werner Slabbert Jnr, Managing Director of Eco Log Homes, who were contracted to the build. ‘The result is a spacious Vermont plank house with a large central hall from which bathrooms, open-plan kitchen, a bedroom, dining room, indoor and outdoor braai and entertainment areas, extend. A special highlight for us is the magnificent loft area which adds

Project particulars Project name: House Memel Location: Memel, Free State Date of completion: January 2017 Architect: Izelle Weilbach Builder: Eco Log Homes Engineer: Mike Hull, Hull Consulting Engineers Roofing: Truss Mecca Plumbing & gas installation: Plumbing Fanatics tremendous value to a structure that boldly reflects, both aesthetically and structurally, the values of Eco Log Homes,’ he adds.

Alaskan influence The architecture of House Memel also took cues from the harsh weather conditions of the area which can become very windy, cold and wet.


Photos by Eco Log Homes

Well-considered design and high-quality finishes

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House Memel was built using timber frame construction

‘We thus turned to more northern architecture, particularly Alaskan design, to help inform key elements of the structure,’ says Slabbert. ‘In a bid to create the most comfortable indoor climate in otherwise unforgiving weather conditions, optimal orientation was essential; the house is positioned facing exact north, bedrooms are situated on the eastern side and the design allows for minimal fenestration and light entry on the western side to shield against the morning and afternoon sun. In addition, the wraparound veranda aids temperature control and the house features no fewer than three fire places for indoor heating when needed.’

Why timber? Timber frame building was the construction method of choice for the client, given the extreme clay conditions of the soil, which had already seen the existing brick and mortar farm house cracked to pieces. ‘Timber as a building material is so flexible and adaptable, which makes it especially well-suited to building on unforgiving terrain such as this,’ remarks Slabbert. ‘This building methodology is also the most efficient way to build a house with exceptionally robust insulating properties to withstand the elements and create a comfortable interior environment for its occupants. These two requirements presented by the project alone made timber construction the most suitable building option for House Memel,’ he adds.

Structural composition CCA-treated (to H3) 38mm x 114mm S5 strengthgraded structural South African Pine timber was used to build the walls and floors of the house in line with the National Building Regulations’ South African National Standard (SANS) 10082, which covers correct timber frame building in South Africa. Wall cavities were packed with 102mm cavity batt insulation, with internal walls finished with 15mm

fire-stop gypsum board prior to plastering. Exterior walls are finished with a waterproof membrane and 11mm thick oriented strand board, adding to both the insulating value of the walls as well as the structural bracing and integrity of the house. Woodgrain textured fibre cement planks complete the exterior cladding. The space under the house was built up with sandstone blocks which were repurposed from an old ruin from elsewhere on the farm. The space is now cleverly used as a basement area to house air-conditioners, gas geyser and other utilities. The floor of the house suspended above the basement is packed with high-density polystyrene to help insulate from the bottom as well.

Exposed roof The roof structure, most of which is exposed throughout the house, was manufactured and installed by an Institute for Timber Construction South Africa (ITC-SA) accredited fabricator and erector and the roof is insulated with a combination of glasswool and IsoBoard insulation. House Memel was built according to both SANS 10400 XA ‘Energy Usage in Buildings’ and SANS 204, which covers the energy efficiency in buildings. The project carries a built-in water purification system, gas stoves and gas heaters, and only borehole water is used. ‘House Memel represents a thoughtful response to a client brief for a timber frame home, with leisure and entertainment at heart, and with difficult soil conditions for construction,’ says Slabbert. ‘Timber was the ideal construction material with which to bring House Memel to life, due to both soil and weather conditions in the area. Thanks to its strength and insulating properties, the occupants will be able to enjoy a comfortable, well-insulated structure that is built to last; well-considered design and highquality finishes layer brawn with beauty for a sturdy, yet luxurious structure that will comfortably weather both the elements and shifts in design trends for years to come. We acknowledge the enthusiasm and team motivational role of our supervisor, Robert Chabangu. Much of the success of this project is attributed to him,’ Slabbert concludes.

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Above: Natural air extraction through atrium – Silo 5 Above right: Silo number 1 uses double glazed double skin façade and automatically controlled blinds.

Chilling at the Waterfront Recent development taking place at the Cape Town V&A Waterfront have heralded many innovations intended to save energy. One major feature has been the seawater cooling system that services most of the major buildings. The No. 1 Silo development, a highly advanced and intelligent building, was awarded a Green Building 6 Star rating and was the first operating building in the Silo District to open. It features green climate control par excellence with little reliance on traditional energyheavy methods. According to a V&A spokesperson, the building speaks to a wide range of sustainability issues and adheres to the strictest global environmentally sustainable building principles and requirements. One of the more unique green features is the use of seawater from the Atlantic Ocean which will be used to eject waste heat from the cooling plant and allows for significant potable water savings and improves the overall energy efficiency of the building. Heat generated from the IT server room will feed the underfloor waterborne heating system to warm the reception area. Another key innovation of the building is the double glazed double skin high performance façade that has a system of automatically controlled blinds between the internal double glazed system and the external single glazed skin which will track the sun as it moves across the building. The high performance façade reduces solar heat gain while maximising the natural light penetration into the building. The blinds prevent further heat gain and also control the solar glare in


the office space. The double glazing prevents any radiant heat loss or gain to the office space. One of the benefits of this façade is to maximise views and natural light throughout the building. An underfloor mechanical air conditioning system addresses both energy efficiency and good indoor environmental quality. The system supplies cool, fresh air from the raised floor, which then absorbs warmth as it rises and is extracted at ceiling level, effectively preventing the build-up of pollutants. Opening early in 2017, another highly rated 6 Green Star building, Silo No. 5, features the same advanced seawater heating and cooling system that uses cold Atlantic seawater to both heat and cool the building. The building’s ventilation system was designed to optimise natural airflow as much as possible: No. 5 Silo’s atrium is, in fact, ventilated by natural airflow alone. An on-site metering system continually monitors and manages water and electricity consumption to ensure the building remains efficient and the ‘smart’ ventilation system monitors carbon dioxide levels in the building, to ensure fresh airflow from outside.

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Trending in furniture 2018 The hottest living room furniture trends for the coming year celebrate curvier, rounder shapes, comfort, colour and international glamour. An expert from a leading furniture manufacturer gives us a scoop on these influencing trends. ‘Last year was a boundary-pushing year for furniture design, and by looking at the trends, 2018 is going to continue in the same vein. We are seeing rounder, softer shapes, soothing cocooning pieces that, more than ever, are aimed at making a home an inviting sanctuary,’ explains Claire Gibson from La-Z-Boy. Photos by La-Z-Boy

Embracing curves Curvy furniture is making a big comeback, notes Claire: “Feel-good furniture that is padded, with downy fillings for maximum comfort is, above all, what people are looking for. The focus is on nurture and restoration.’

Global nomad Minimalist design has been superseded by ‘global nomadism’ – a meeting of the tribal, the traveller and a global connection. Claire notes that this new trend is having a big impact on colours and materials: ‘Think lots of leathers, feathers, baskets, wood, earthy colours, stimulating textures, and interesting objets d’art – all set in soft, monochromatic colour schemes. These are being complimented with industrial elements, such as concrete and metal – offering an urban and contemporary contrast to the collection of rustic components of this look.’

Vintage glamour ‘Today’s modern glamour means lots of jewel tones, luscious velvet-type fabrics, deep-pile carpets, tufted and quilted patterns, and shiny metallics – but being delivered with a much softer, vintage character,’ says Claire.

A new neutral The notable ‘grey is the new black’ trend is still riding the wave of popularity, and will stay trendy for some time to come. However, there will be a few tweaks says Claire: ‘Darker tones, such as liquorice, are really gaining momentum. This tone is almost black, and it is being used to great effect as a small accent


colour alongside plenty of white and cream – creating a monochromatic look that is strong, but in a calm and gentle manner.’

Up close and personal Design is moving away from commercialism and the desire to live in hotel-like settings, explains Claire: “There is a drive towards rooms that speak of the character of their owners. With the rise of social media we are all putting our homes on show more than ever before, and as our private spaces become more public, so they are also becoming more personal, and a better representation of who we want to be.’

Welcome to nature ‘Going green’ is an environmental trend, but is also an interior design trend as well, says Claire: ‘Shades of green, such as emerald and olive for example, are rising in popularity. This is being complimented by a surge in botanical prints and designs making their way into modern homes.’

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Photos by Bennie du Plessis

Case study: Stabilisation at the mine A deep injection technology specialist tells To Build about a recent case in the mining industry where its patented technology solved a load bearing capacity problem encountered when work was being undertaken at the mine. The Goldfields’ South Deep mine in Westonaria is designed to access and exploit one of the largest gold ore bodies in the world. The mine is located on the western edge of Gauteng. However, the ore is located at considerable depth in a zone that is highly stressed and significant capital was invested in recent years into high profile destressing methods. The company says that its rebasing process has a strong operational process to deliver ramp-up, sustained steady state production and targeted cash-flow. The mine continued to refurbish and build on its infrastructure platform, including the shaft, ore-handling facilities, backfill, and ventilation and refrigeration infrastructure. (Source: Goldfields website) According to Tony Pappalardo, Director of Uretek South Africa, his company carried out some work at Goldfields South Deep in January 2018. ‘The work specifically related to increasing the bearing capacity of the soil base. Our objective was based on a universal principle: to increase the bearing capacity of weak soil,’ he says.

The problem ‘The ground was found not to have sufficient bearing capacity to carry the overall weight of the bases, up to


300 tons plus the additional 30 tons of the extraction fans that are to be placed on the bases’ Pappalardo explains. The objective was to stabilise concrete bases that were of considerable size: two of 4m x 2.2m, two of 8m x 3.9m and two of 7m x 3.6m.

The solution The technology was deep injected in a considerably brief time period. Pappalardo says that in total the job took three days, one day to drill through to the bottom of the bases and two days to inject. ‘An amount of 1 478kg of resin was injected into the soil using a crew consisting of only three technicians and one supervisor,’ says Pappalardo. ‘We believe this demonstrates the versatility of the Uretek technology of deep Injection and the small number of technicians required to effectively complete a job in a considerable brief time span.’

Uretek South Africa T +27 (0)83 601 1456 E W

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Solving subsoil drainage problems During February 2017, the development of the picturesque Bergenzicht Country Estate nestled below the Simonsberg and Franschhoek Mountains in Paarl had reached Phase 4. Unfortunately, a leaking dam situated upstream from the estate, was causing a significant rise in the water table. A combination of this moisture and the iron rich soil, for which the area is prone, was resulting in the formation of ferric oxide that, in turn, can lead to a slimy gel forming, capable of blocking an entire drain. The problem was solved via the implementation of a popular subsoil drainage system. A contractor in the Western Cape, who recently experienced great difficulty installing conventional aggregate drains in waterlogged soil, commented on the sheer ease and speed of installing the system in the same soil. The engineering consultant onsite recognised that conventional drains for the parking area were not a viable option; therefore he specified easy-to-install FloDrain and Geopipe systems. Both are supplied by Kaytech, specialists in the field. These would not only act as cut-off drains, but importantly, would also reduce oxygen levels and thereby the formation of ferric oxide. The backfill used was clean free draining river sand. Upon completion of the project in October 2017, Contractors had installed 2 000-metres each of FloDrain 400mm and Geopipe M65R, resulting in the effective interception and control of subsurface water entering the new layerworks. The ideal solution for a wide variety of subsoil drainage problems, pre-fabricated FloDrain, is a lightweight, flexible system that reduces the costs of transportation, excavation and labour. It is installed vertically into a trench with a Geopipe positioned and wrapped in the bidim filter jacket at the base of the fin. Manufactured from HDPE, Geopipe is light and flexible and much easier to handle than other pipes; it easily accommodates high localised flows and can tolerate extremely high stresses. With its 70% perforated surface area, Geopipe allows for the highest infiltration rate of water compared to that of any other drainage pipes. FloDrain is supplied pre-wrapped in bidim, Kaytech’s renowned, continuous filament, nonwoven, needle-punched geotextile manufactured from 100% recycled polyester. The needle-punching process provides several benefits including appreciable thickness, high porosity and a significantly high


Above: Clay loam soil conditions Left: Slimy gel blocks drain Photos by Kaytech

drainage capacity in both the transverse and normal to the plane. Bidim performs two functions when incorporated in a subsoil drain; that of filtering and separating, and fine soil particles are prevented from entering the drain while water passes through, thus lowering the phreatic surface in the surrounding soil. The supplier’s FloDrain and Geopipe systems proved to be an extremely economical solution that successfully solved two problems.

Kaytech Engineered Fabrics T +27 (0)31 717 2300 E W

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Plan, Design, Build, Interior & Exterior Décor

GREEN BUILDING HVAC.......................................................140 Materials...............................................142 Renewables...........................................144 Energy...................................................146 Project..................................................148 Green Awards....................................150

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Above: Dharmesh and Shay Morar of Jai Airconditioning Services Photos by Fourways Airconditioning

Above: Capitec Bank - client Right: Vicki Murray (Fourways) on site with Samsung airconditioners

Banking on keeping cool Recently voted ‘Best Bank in the World’ by Lafferty’s Global Bank Quality Benchmarking Study of banks in 32 countries, Capitec Bank is also making sure it keeps right up-to-date with technology, which includes its airconditioning systems. ‘Capitec Bank has been a client of ours since 1997,’ remarks Dharmesh Morar, Managing Director of the contractors, Jai Airconditioning Services. ‘Currently we are installing Samsung R410A airconditioners not only in new Capitec branches around the country, but also upgrading existing branches to the new gas.’

Victorious outcomes The name “Jai” is a Hindi word for “victory”. Jai Air, thanks to Dharmesh’s experience of 29 years in the aircon and refrigeration business, now runs eight teams countrywide, with Capitec Bank being Jai’s premier client. Other banking clients include First National Bank. ‘Doing installations in a new branch is certainly easier than upgrading existing branches,’ comments Dharmesh. ‘Obviously we don’t want to upset the bank’s clients in a working branch, and it’s not just a matter of replacing the indoor and outdoor units. We also replace all the piping involved because R410A operates at a much higher pressure than the old ozone-unfriendly R22 gas, and its lubrication needs are also different.’


Successful partnership One of the reasons that Jai Air uses Samsung units, apart from their quality, is the back-up from Fourways Airconditioning. ‘They not only give me units on time, but also the spares when I need them. In fact, in the past they have stripped new units to provide out-of-stock spares that I urgently needed,’ says Dharmesh. ‘Marlene Strydom, Fourways sales representative, Richard Perry, Managing Director and Denise Nunes, Sales Director, have really helped me out of tight spots in the past.’ Now Dharmesh’s son, Shay, is also beginning to play a part in building the business, which looks certain to continue growing further. ‘Shay’s my partner,’ grins Dharmesh, giving him a hug. And with the experience of his father to guide him and leading clients such as Capitec, it seems as if Jai Air faces an exciting future.

Fourways Airconditioning T +27 (0)11 704 6320 E W

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Recycled polystyrene screed solution One of the most spoken about new buildings in South Africa and globally currently is undoubtedly the new Zeitz MOCCA, Museum of Contemporary Art in the Silo District of the V&A Waterfront and the stunning Silo Hotel, Royal Portfolio, located within the renovated former grain silo building.

Photos by Greenlite and Gareth Griffiths Imaging

The Silo Hotel rising above the Zeitz MOCCA uses lightweight screed

The brief of the design architects, the Heatherwick Studio of London, was to create a space that would not only pay tribute to its original industrial design and soul, but would become a major, not-for-profit cultural institution that houses the most significant collection of contemporary art from Africa and its diaspora. The breathtaking luxury boutique hotel was part of the Heatherwick master plan and its design was implemented by leading Cape Town architectural firm Rick Brown, as well as owner and interior design specialist, Liz Biden. The nature of the project called for a solution that would be unique to Africa and this included the innovative use of recycled polystyrene. Whilst To Build has covered various aspects of this ground-breaking building and was one of a few media to be invited to its


launch pre-view, we have been fascinated to learn from the Polystyrene Association of South Africa of the use of a lightweight cement manufactured by using recycled, expanded polystyrene that is coated with a special cement mixture. According to the supplier, Greenlite, the result is a lightweight, strong and highly versatile product that is used in a variety of different building applications. According to Hilton Cowie, Technical Director at Greenlite Concrete: ‘The foam trays and punnets used for take away food and other convenience meals have now found a market in light-weight concrete. Postconsumer polystyrene is collected for our company from recyclers operating around Cape Town with the help of the Polystyrene Association. After being shred and pelletized, the polystyrene beads are coated

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GREEN MATERIALS GREEN BUILDING total for the Silo Hotel part of the building. The total weight of lightweight screeds once installed was approximately 100 tons, compared to the 400 tons presented by conventional screed. ‘We recycle post-consumer polystyrene back into beads through our recycling plants. This material is then used as aggregate mixed with cement and additives to form insulated, soundproof, fireproof, water-resistant lightweight concrete blocks and screeds,’ Cowie explains, adding that they successfully recycled and diverted more than 6 tons of polystyrene from landfill because of the Silo project. ‘Our screeds also contribute to outstanding acoustic performance, important factor for sound proofing the floors of the Silo Hotel,’ he adds.

Solutions offered by recycled polystyrene

Lightweight screeds throughout the hotel

with special additives which allow the beads to mix correctly with cement and water without separating. The coated, treated beads are packaged in 250 litre bags to be used on site as the aggregate for light weight insulated concrete or flooring screeds.’ Lightweight concrete products had been specified for the project by the designers because structural engineers were concerned about excessive loading on the existing structure. Sister magazine, SA Building Review ran an extensive technical article on the challenges of the Silo in the 2017 edition – See the article online at

According to Adri Spangenberg, Director of the Polystyrene Association of South Africa, climate change symptoms and the rising cost of energy has meant the use of recycled polystyrene in building and construction applications is becoming an increasingly popular solution for architects and material specifiers. Last year alone, more than 2 036 tons of polystyrene were recycled countrywide for this use in a wide variety of different types and sizes of buildings – ranging from schools, shopping malls, state-ofthe-art museums and designer homes, to low-cost housing solutions, schools and community clinics. ‘We are urging South Africans to realise the tremendous value of this lightweight material that is not only able to reduce the structural concrete and steel requirements, but offers excellent insulation and ensures significant energy savings,’ she says.

Screed ‘As a 94-year-old concrete building, the developers needed a screed solution that would not put unnecessary load on the structure, yet would not compromise on quality, strength and durability,’ Cowie says. Concrete blocks manufactured with Greenlite Concrete weigh a quarter of typical concrete. They are also produced in sizes that are easy to handle for quick construction. According to Cowie, more than 2 000m2 of lightweight screeds were applied using close to 200m3 of Greenlight lightweight concrete in

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Photos by Sustain Power

Local is lekker - Biogas A local company has recently delivered a locally designed and manufactured biogas electrical power generator to one of the leading biogas companies in Southern Africa. The company produces biogas via the anaerobic digestion of animal by-products such as those arising from abattoirs. The supplier, SustainPower, together with Unique Hydra, connected to leading global players, the Unique Group, recently delivered a locally manufactured biogas electrical power generator to Ibert (Pty) Ltd (ibert). The containerised combined heat and power unit (CHP), rated at 220kW, produces energy via a conversion process which, by recovering about 90% of the energy in the gaseous fuel, is very efficient. Biogas is a methane-rich gas which is produced during the breakdown of organic waste such as agricultural waste, plant material and food waste. The process is recognised as a viable renewable energy source. SustainPower, based in Cape Town, specialises in containerised sustainable power generation equipment, delivered its first 220kW CHP to ibert’s abattoir wasteto-biogas generation plant near Pretoria. Bob Elshove, divisional sales director for SustainPower, told To Build that his company, offers high-quality containerised power generation equipment designed for the African market by using Unique Hydra’s world-class engineering and manufacturing capabilities. Unique Hydra is engaged in the supply of technology and equipment to the marine, diving, pipeline and subsea market sectors The power packages are assembled at the facility in Cape Town using the highest local content possible, while at the same time integrating market leading international components such as the top-of- therange MAN gas engine from Germany. Unique Hydra, as a strategic partner to SustainPower, supply


the container, handle the fabrication, the electrical integration and the cooling and heat offtake system. ‘With experience in the delivery of complex offshore systems to the diving industry, the Unique Group have become experts in the design, manufacture and turnkey supply of multidiscipline systems into containerised format for plug-and-play type installations. This makes us very well positioned to deliver biogas power plants into the renewables industry,’ says Elshove.

Import displacement According to Horst Unterlechner, Technical Director of ibert: ‘For our previous biogas plants, we imported our generator sets directly from Germany because we could not find the right cost-effective technical solution in South Africa. Although the SustainPower team are new players in the market, we trusted the team’s expertise and their innovative concept and we have been very impressed with the result.’ ‘Whilst the biogas and waste-to-energy industry in Africa is still in its infancy, it has enormous potential as energy shortages and ineffective waste management are amongst the largest challenges in Africa,’ says Tobias Hobbach, Managing Director of SustainPower. ‘With our technology and solutions we assist clients in doing the right thing by successfully harnessing the energy contained within organic waste.’

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• Latest in Solar PV and Heat Pump Technology • Commercial and Residential Projects • Attention to System Performance and Financial Payback • Experienced Installation Team

Tel: +27 (0)21 424 1935


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Photo by SOLA

Robben Island embraces PV Robben Island, one of Africa’s most celebrated historic sites, has installed an innovative micro-grid project that uses clean power and battery storage. The island is a World Heritage Site located in an environmentally sensitive position. According to Gershon Manana, Executive Manager of Robben Island: ‘The electricity usage on the island is not insignificant and was supplied by a “diesel-guzzler” - diesel generators up until recently.’ The impetus behind converting to renewables stemmed from the Department of Tourism commissioning a green energy project pilot on the island. ‘From a sustainability aspect, the solar PV energy generating system will reduce the island’s carbon footprint and will minimise the diesel-related hazards. All of these efforts are critical in ensuring the conservation and preservation of Robben Island,’ says Laura Robinson of the Robben Island Museum Council and a director of the Cape Town Heritage Trust. Apart from supporting the energy needs of the museum itself, power is also needed to service the homes of approximately 100 staff stationed there, as well as the desalination plant which provides potable water to inhabitants and visitors. Robben Island’s microgrid was designed by SOLA Future Energy in a two-month long project. Designing the PV plant incorporated several phases, including the replacement of a mini-substation to adequately incorporate PV into Robben Island’s existing grid, designing of the ground-mounted solar farm and placement, the battery bank and controls. The system consists of a solar PV farm, combined with a lithium-ion battery storage facility and smart controllers to ensure a seamless electricity supply, whilst significantly reducing the island’s fossil fuel consumption.

Design Mike Lee, design engineer at SOLA Future Energy explained: ‘We had to be very careful with the


structure because of the high salt content in the air. To overcome this, we used 3CR12, which is close to stainless steel and combats the corrosive nature of sea salt in the air.’

Usage profile and micro-grid In total, the island uses almost 2M kWh/annum. The PV project produces 1M kWh of electricity annually, significantly reducing fuel costs. There is also a drive to reduce energy consumption on the island. The micro-grid consists of three power production elements. The solar PV farm consists of 1,960 mono-crystalline modules with a total of 666.4kW power supply. The battery bank, consisting of 2,420 lithium-ion battery cells, can store 837kWh and output a maximum of 500kVA. The third power production element remains diesel generators which are used when no solar or battery storage is available. Multiple controllers balance the power supply and create a smart micro-grid, ensuring a seamless supply of power. CEO of SOLA Future Energy Dom Wills, says: ‘Our micro-grid is the largest combined solar and lithiumion storage microgrid system in South Africa. Here it will reduce its fossil fuel consumption by 235 000 litres of diesel per annum or 50% of previous usage. This will result in a reduction of the island’s carbon emissions by at least 820 tons and will save the island money during its 25 years of operation. The island’s micro-grid is also a very good example of how off grid places can be powered in the next 20 years.’

SOLA Future Energy W Source:

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The race to zero As one of the first projects in Africa to be certified Net Zero, 78 Corlett Drive in Johannesburg is leading the local green building sector into a new phase of evolution. The project was awarded a Net Zero Carbon (Pilot) Level 1 Certification in late November 2017, and a 6-star Green Star Office V1.1 Design certification in January 2018. Developed by Legaro Properties and with Solid Green Consulting as green building specialists, the project is situated on a brownfields site and aims to set a new standard of vibrant and trendy co-working office space in a contemporary new development ideally located a stone’s throw from Melrose Arch along Corlett Drive in Johannesburg. The site is within 1km walking distance of six bus stops (Putco, Metro and Gautrain) and 450m walking distance of taxi stops linking to alternative mass transport options via various taxi routes. Several local amenities are situated within a 400m walking distance, including a pharmacy, gym, bank, convenience store, restaurant, school, medical centre and dry-cleaning outlet.

Net Zero certification ‘Net Zero certification helps industry understand the goal of what we should be aiming for as property owners and developers in terms of environmental objectives,’


Reducing carbon emissions Roger Brookes, Projects Director of Legaro comments: ‘We are committed to driving green

Artists impressions by Daffonchio & Associates Architects

With the Green Building Convention 2018 soon, this project certainly contributes to the theme “The Race to Zero”

says GBCSA Executive Director for Certifications, Manfred Braune. ‘Rather than simply doing “less bad”, we can neutralise the impact of developments or even have a net positive impact. The GBCSA congratulates Legaro Properties for demonstrating their environmental leadership, and for achieving a Net Zero carbon rating for 78 Corlett. This is a fantastic achievement of which they can be very proud.’ GBCSA Net Zero/Net Positive Certification awards projects go beyond the partial reductions recognised in the current GBCSA tools and have taken the initiative to reach the endpoint of completely neutralising or positively redressing their environmental impacts. Projects can achieve Net Zero/Net Positive Ratings in carbon, water, waste and ecology.

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PROJECTS GREEN BUILDING building innovation in the property sector, through leading by example with projects like 78 Corlett, 41 Melville Rd and 54 on Sixth Rd Hyde Park.’ The upper ground floor of 78 Corlett accommodates a mixture of vibrant open co-working spaces and cellular offices, interspersed with social and formal meeting spaces organised around a central coffee bar located in the triple volume daylit atrium. The first floor has additional co-working spaces and larger formal offices to cater for a diverse variety of tenants. ‘The design incorporates strong minimalist geometries with shading louvres acting as a dynamic facade element and passive shading device,’ says Robert Dos Santos of Daffonchio & Associates Architects. ‘The building is elevated above street level, gently interfacing with the ground through a glass box that will house the main circulation core and a concierge service.’ Energy strategies contributing to the Net Zero Carbon Level 1 Certification include an energy model of the building, comparing 78 Corlett to a notional building model. The building design showed an improvement of 100% over a SANS 10400 notional building, successfully demonstrating the reduction of greenhouse gas emissions associated with the building’s operational energy consumption, with carbon emissions reduced to 92kgCO2/m2/yr. The building’s peak electrical demand is actively reduced with a photovoltaic array installation on the roof that has an annual output of 92,000 kWh and will tie in to the grid. All enclosed spaces are individually switched, making it easy to light only occupied areas. The project saves energy by providing office lighting that is not over-designed and achieves an average maintained illuminance level of no more than 400 Lux. Hot water is efficiently provided by small high performance electric under-counter geysers installed in each bathroom. Geyser electric requirements is supplemented by the PV array on the roof. Separate energy sub-meters are provided for lighting and power to accurately monitor energy consumption. The owners are targeting an overall consumption of 75kWh/m2/year, far less than the 200kWh/m2/year SANS10400 XA requirement. The project also provides electric car charging facilities and dedicated bays for electric vehicles. Six fuel-efficient parking bays dedicated to hybrids and other fuel-efficient vehicles, and five dedicated motorbike parking spaces have been preferentially located close to the main building entrance. Seven

staff and three visitors’ bicycle racks have been provided; together with a cyclist’s changing room, shower and lockers.

Indoor environmental quality The design allows a direct visual connection to the external environment for 80% of the office useable area, optimising natural daylight within. A high level of thermal comfort has been ensured by addressing the internal operative temperatures through modelling and ensuring they are within the ASHRAE Standard 552004 acceptability limits for at least 98% of occupied hours. 100% of the usable area is mechanically ventilated and provides ample good quality outside air by demonstrating a 66% improvement over and above the SANS 10400-O:2011 requirements. Cooling is provided to the building via air-cooled chillers.

Managing waste A project-specific Waste Management Plan was developed to minimise waste to landfill during construction and operations. A 40% reduction of the quantity of Portland cement was targeted as an average across all concrete mixes, together with a 60% recycled content of all steel by mass on the project; and 50% (by cost) of all timber products used in the building and construction works were specified to be Forest Stewardship Council (FSC) Certified Timber, reused or recycled timber. The building’s design includes a waste recycling storage area of 19m2 to encourage building users to recycle all waste where possible. Recyclable waste, including paper and cardboard, and plastic, glass and cans, is collected every two weeks. All selected gaseous and fire suppression systems and thermal insulants have an Ozone Depleting Potential (ODP) of zero to eliminate any contributions to long-term damage to the earth’s stratospheric ozone layer.

Water efficiency Sub-metering of major water systems is in place and low flow fittings have been specified throughout. The building does not make use of a fire sprinkler system which helps to reduce potable water wastage. And xeriscape landscaping has been designed to minimise consumption of potable water for irrigation.

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UCT triumphs in environmental innovation again Young environmental game-changers from the University of Cape Town (UCT) took first place in the Greenovate Awards for the third year running. UCT earned the very first Greenovate Engineering Award too. The awards programme is an exciting initiative by Growthpoint Properties in association with the Green Building Council South Africa (GBCSA). The prestigious awards recognise innovative solutions for the property industry to environmental challenges. In its third year, the awards strive to inspire and encourage students of the built environment to discover, explore and invent ways to live more sustainably. For first time, the awards were also extended to include a second category for engineering students. The students were challenged to come up with ideas for any property-related project that makes the way we live greener and our environmental footprint lighter. A total of eight universities competed for both awards this year. UCT was the only one to take up the challenge in both award streams. Groups from each of the participating universities competed internally first, and the two top projects from each were chosen as finalists. This year the awards adjudicated a record 16 finalist teams. For the Greenovate Awards, two finalist teams each came from the University of the Witwatersrand (Wits), UCT, Nelson Mandela University (NMU) and the University of the Free State (UFS), and one represented the University of Pretoria (UP). For the first ever Greenovate Engineering Awards, two finalist teams each represented UCT, Stellenbosch University and North West University (NWU), with one team from the University of Johannesburg (UJ).

Co-creativity is the absolute substrate of continuous leading innovation The winners were announced at a gala dinner in Sandton Central with keynote speaker, serial tech entrepreneur Stafford Masie, who said: ‘ much as it is about technology, it’s more so about humanity. Sustainability of any idea or innovation is collectively


harnessing latent human capital, augmented with AI, to coagulate around your business from the outside. We need to establish ecosystems versus just building cool stuff or even just cool is the absolute substrate of continuous leading innovation. Make everything hack-able, derive less value than you create and ensure your leadership is focused on empathy...understanding what makes us human, and allows us to express that humanity, with the context of your services, builds exponential competitive edge and values.’ The UCT team of Mark McCormick, Daniel Navarro and Nicholas Tennick, supervised by Karen Le Jeune, were named the winners of the Greenovate Awards 2017. Their submission was titled “upgrading existing medium-density residential buildings with strategic green building features and initiatives holds the key to increasing affordable housing in Cape Town”. This team of outstanding young green innovators took home R30 000 in prize money, as well numerous other rewards. UCT also took second place, with team members Tarryn Coles, Anthony Testa and Gemma Watson investigating the viability of using self-sustaining shipping container homes as an affordable and sustainable approach to student housing. Saul Nurick supervised the team. Third place was scooped by the Wits team of Thina Mangcu, Prudence Ndlovu and Yonwaba Mntonga, supervised by Dr Kola Ijasan, which undertook a Johannesburg explorative study of a project manager’s skill and knowledge in green building construction. For the inaugural Greenovate Engineering Award, UCT student and young green thinker Craig Peter Flanagan, supervised by Dr Dyllon Randall, took top honours with a focus on the development of an on-site nutrient recovery urinal for buildings. The award came with a R30 000 prize. NWU clinched second place in the engineering

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Photos by Growthpoint


Nicholas Tennick, Daniel Navarro and Mark McCormick

stream with student Reino von Wielligh, supervised by Dr Leenta Grobler and Dr Henri Marais, who submitted an investigation of a solar powered parking bollard for parking space management. Third place went to Stellenbosch University student Petrus Johannes Stefanus Botes, with supervisor Prof Jan Andries Wium, who explored the development of sustainable construction systems in South Africa, specifically bamboo scaffolding. ‘We are proud to be part of this initiative, year on year these young men and women manage to amaze us with their raw talent,’ says Dorah Modise, CEO of the GBCSA. ‘The innovative ideas that they present grow from strength to strength as the years go by. We are happy to see that our efforts in building the necessary skills required to transform the built environment are bearing fruit and we can happily look forward to a greener, more sustainable future.’ Remy Kloos, the driving force behind the Greenovate Awards, comments: ‘This awards programme is an excellent way for leading green corporates like Growthpoint to link to university students – the future leaders who will become champions of the sustainability movement. It closes the gap between what is learned at universities and the practical solutions that today’s businesses are seeking. The Greenovate Awards are producing revolutionary student projects backed by smart thinking. These young green trailblazers are discovering new ways to drive green building thinking forward, to ensure a better future.”

Craig Peter

But the final word belongs to the foresighted event sponsor, Growthpoint Properties. Commenting on the company’s behalf, Werner van Antwerpen says: ‘Growthpoint is proud to collaborate with the GBCSA, the universities and their students, the award’s sponsors, and the mentors and judges that give so generously of their time and knowledge. Together, we can inspire environmentally innovative thinking among even more of South Africa’s future leaders. Everyone wins when we show and grow innovation for a greener, healthier, and more sustainable environment.’

Greenovate Awards - Growthpoint W issue 23

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Award winning student on to finals The architects of the future are the ones that will completely transform the way that we inhabit this earth and usher in the lived reality that will be the fourth industrial revolution. This was the view of the sponsor of the 31st Corobrik Architectural Student of the Year Award who spoke at the regional awards ceremony held late last year at the University of Johannesburg. Along the lines of Frank Lloyd Wright, sponsor’s representative Musa Shangase, Corobrik Commercial Director, suggested to winners that every great architect must be a great original interpreter of his time, his day and his age. ‘Technology will not only dictate how we design the built environment of the future but how we build it and live in it. However, never forget that the technologies of the past, including what may at first sight seem like a simple clay brick, will continue to impact on our lived reality. They will remain the building blocks of the future. History, especially in developing economies and societies like South Africa, will determine our ability to embrace what is new in order to address the short comings of the past,’ said Shangase.

Technology will not only dictate how we design the built environment of the future but how we build it and live in it. Winners – UJ regional awards In this annual competition, the country’s best architectural students from eight major universities are identified based on their final theses and presented with awards throughout the year. The winners of each of the regional competitions then go on to compete for the national title and a prize of R50 000 to be held in Johannesburg in April 2018. Sarah Treherne was awarded first prize and R8 500. Her winning thesis is titled ‘The Subverse: Monuments to Hypertextuality’.


‘At first reading, parables and fairy-tales may appear to have little do with architecture, but architecture is as much concerned with communication and storytelling as it is with shelter. The Subverse: Monuments to Hypertextuality is a series of six stage sets that harness the dual nature of fiction and theatre to confront the sensitive themes of privilege, patrimony, corruption and collusion in postapartheid South Africa. Set in the hyper-politicised suburb of Saxonwold, The Subverse generates a surreal landscape of socio-political enquiry,’ explains Sarah. ‘Theatrical tactics - such as metaphor, diversion, juxtaposition, absurdity, and fairy-tale - are used to deliberately reconfigure the known narratives of historical events, landmarks, monuments, and accounts in order to reveal an alternative narrative, the subverse, of past and present South African politics ‘Hypertext describes embedded links and the endless layers of information that form a vast web of cross-referencing between sites – in this case, between the six stage sets. Each layer of meaning conceals another, and with each tactical transformation, the resultant architecture becomes the stage on which a new story is enacted.” The other winning theses were: • Joint runners-up, Mandy Shindler and Sabine Waskow, with a prize ofR5 500 for their theses, ‘A Women’s Vernacular for the Twenty First Century’ by Shindler and ‘Perpetual Monuments: An ‘Other’ Archive’ by Waskow. • Amanda Barnard for the best use of clay masonry in her project ‘The 168 Hour City. Modelling a vibrant urbanity through mixed-use housing typologies for Bertrams, Johannesburg’. She won R4 500.

31st Corobrik Architectural Student of the Year Awards W

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Photos by Gareth Griffiths Imaging

A grand view of Cape Town from the upper level timber balcony.

CTICC 2 grand opening We recently attended the grand opening of the east extension of the Cape Town International Convention Centre (CTICC 2). Aimed at the media and at the conference and convention industry, the opening was high-end, by anyone’s standards. According to Chief Executive Officer of the CTICC, Julie-May Ellingson the CTICC is now a fully integrated event venue complex never before seen in Cape Town which offers clients unparalleled choice and flexibility. Opening the new extension along with Cape Town Executive Mayor Patricia de Lille, Western Cape Minister of Economic Development Alan Winde said: ‘The CTICC’s important role in job creation and bringing revenue into the province cannot be underestimated. Delegates at CTICC-hosted conferences spent R1.3 billion in 2016/17, while international delegates brought R363 million in foreign exchange into our economy.’


‘Through its operations the centre sustained a total of 107 000 jobs directly in the Western Cape and nationally since opening. The CTICC has made a cumulative economic contribution to national GDP of R36.3 billion and added R32 billion to the Western Cape economy,” De Lille explained. To illustrate the effectiveness of each large conference venue, guests enjoyed each course of an excellent 4 course meal served in a different room – formally made up tables and all with an exceptional live show carried over to each venue. It was all in all a very impressive show which showcased the world class capabilities of the new extended convention centre.

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Left: Mayor Patricia de Lille and MEC for Economic Opportunities in the Western Cape jointly cut the ribbons at the ceremony.

Above: An open air convention bar – with timberwork and balcony by Contour Decks. Left: A suspended show violinist – showing what the new venue is capable of.

In fact, a huge15 000-delegate World Ophthalmology Congress will be held across the entire complex. Ellingson suggests that Cape Town would never have won this bid, if it wasn’t for the CTICC’s expansion. Well done to the CTICC on a great expansion, which surely also features as one of the grander building projects of 2017.

Cape Town Convention Centre W issue 23

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NOTES Plan, Design, Build, Interior & Exterior Décor

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advertisers’ index issue23

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