SA Roofing April 2015 | Issue: 68

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APRIL 2015 ISSUE: 68

SA R36 EACH INCL. / R360 PER ANNUM INCL.

APRIL 2015

ISSUE: 68

EDITOR’S COMMENTS...................................................................................................... 2 CONTRIBUTORS................................................................................................................. 4 POLYURETHANE SPRAY FOAM............................................................................... 8-10 COVER STORY..............................................................................................................12-16 EVENTS...........................................................................................................................18-20 COOL ROOFS............................................................................................................... 22-23 LEGISLATION............................................................................................................... 24-27 WATERPROOFING.....................................................................................................30-31 STEEL CONSTRUCTION.......................................................................................... 32-33 TIMBER ROOFING......................................................................................................34-36 CEMENT & CONCRETE.................................................................................................. 38 SOLAR PV...................................................................................................................... 40-43 LIGHT STEEL FRAME................................................................................................. 44-45 CERTIFICATION................................................................................................................ 46 PAINTS & COATINGS............................................................................................... 48-49 EVENTS................................................................................................................................. 52 EVENTS.................................................................................................................................54 COATINGS & SEALANTS............................................................................................... 56

Trademax Publications SA Roofing Tel: 0861 SA ROOF Tel: 0861 727 663 Fax: 0866 991 346 Email: info@trademax.co.za www.trademax.co.za Postnet Suite 241 Private Bag X103 N1 City 7463

PUBLISHER: Billy Perrin 082 266 6976 billy@trademax.co.za EDITOR: Jennifer Rees editor@trademax.co.za ADVERTISING:

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Jacqui Marsh jacqui@trademax.co.za LAYOUT & DESIGN: Craig Patterson craig@trademax.co.za SUBSCRIPTIONS: Belinda Thwesha belinda@trademax.co.za

DISCLAIMER The views expressed herein are not necessarily those of Trademax Publications. Although we have done our best to ensure the accuracy of our content, neither Trademax Publications nor SA Roofing magazine will be held liable for any views expressed or information disseminated, in

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EDITOR’S COMMENTS

Green roof, clean roof You know it. If you have anything to with the roofing trade, whether in the manufacture, supply, or erection sectors, you know you can’t dismiss or keep your eyes off any roof, whether you’re visiting a friend, driving along the N1, or visiting the mall. Roofs. Are. Everywhere.

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ut for most people, unless the roof is leaking or obviously faulty, it is just not that evident, or at least not of much concern. And it really should be.

So in this issue of SA Roofing, we take our readers on a journey that encourages looking up and really giving some thought to what exactly lies above.

On our cover this month is Roof Rats, a company that specialises in cleaning up roof debris from rat, bat, bird and insect infestations. Even people operating in the roofing trade don’t always think about this element of roof maintenance that may not only impact on the inhabitants’ health, but can also compromise on their safety as a result of the sheer weight of the debris carried by the roof. Read more about infestations and the business of cleaning these up on page 12.

Then we cast a light on solar photovoltaics in this issue with an in-depth look at the new solar installation at the Epsom Downs Mall. This R6 million solar farm represents a tremendous move towards adding a viable renewable energy solution

to an otherwise energy-hungry property. Made up of 1 084 panels, producing about 271kWp, this project looks to save 515 172kWh of energy per annum. If those figures excite you, read more on page 40.

Finally, while 2015 is already in full swing, the year has so much more to offer. Our events section is brimming with things to do, people to see, and places to go. Safintra will also be hosting its 2015 roadshow, themed ‘Sustain-Ability: Be the Change’, which “will focus on the materials, roofing systems and technologies that have dramatically improved the performance of metal roofing and cladding.” These will be held across the country from May to August – take a look at page 18 to find an event near you.

Here’s to clean roofs and to green roofs. And to looking up no matter what.

Welcome to the April issue of the SA Roofing magazine.

Enjoy the read!

Jen

MANUFACTURED BY

ENGINEERING EDGE

SINGAPORE

AWARD WINNING FASTENERS Tough enough for oil rigs Tough enough for your roofs

TESTED BY:

Cnr Berkley Road and Bax Street, Maitland, Cape Town 7405 T: 086 126 2866

F: 086 610 5441

W: www.corroshield.co.za

E: info@corroshield.co.za

CONTRIBUTORS

Contributors DOUG MICHELL Doug entered into Construction Health and Safety in 1983 and has been involved in numerous major projects representing the client, project managers and contractors, experience that stands him in good stead to provide guidance to members in construction health and safety matters through the project life cycle. Since joining the MBA in 2008 he has served on ACOHS and has been appointed to serve on the Technical Committee for the Construction Regulations and more recently the SACPCMP task team for the development of the registration criteria for Construction Health and Safety Practitioners with the SACPCMP.

FRED WAGENAAR Fred is the Executive Officer of the ITC-SA and has been involved in the construction industry for the past 34 years. He is passionate about the built environment and is committed to promoting excellence in design, workmanship and material in the roofing industry. Fred is a proponent of drinking red wine, is unable to resist the calling of the open road, and loves chasing the sunset on his Harley.

Upcoming Events COATINGS FOR AFRICA SYMPOSIUM & EXPO 11-13 MAY 2015, SANDTON CONVENTION CENTRE, JOHANNESBURG View www.coatingsforafrica.org.za for more info

TOTALLYCONCRETE EXPO 13-14 MAY 2015, SANDTON CONVENTION CENTRE, JOHANNESBURG View www.totallyconcrete.co.za for more info

AFRICAN CONSTRUCTION EXPO 13-14 MAY 2015, SANDTON CONVENTION CENTRE, JOHANNESBURG View www.construction-week.com for more info

CAPE CONSTRUCTION EXPO 12-13 AUGUST 2015, CTICC, CAPE TOWN View www.cape-construction.co.za for more info

WOODEX FOR AFRICA 9-11 JUNE 2016, GALLAGHER CONVENTION CENTRE, JOHANNESBURG View www.woodexforafrica.com for more info

WoodEX for Africa 2014

CALL 0861 727 663 TO BOOK YOUR SA ROOFING ADVERTS FOR 2015

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APRIL 2015

Leaders in Roof Truss Technology Fabricators Sheeters Erectors Tilers

P O LY U R E TH A N E S PR AY F OA M

Polyurethane spray foam as a thermal insulator to improve energy efficiency in domestic and commercial buildings The trend towards improved energy efficiency and protection of the environment is extremely important, and so thermal insulation of buildings, both old and new, plays an important role.

GET IN TOUCH WITH POLYURETHANE Polyurethanes (PUs) are versatile, modern and safe. They are used in a wide variety of applications to create different consumer and industrial products that play a crucial role in making our lives more convenient and comfortable. They are found just about everywhere in modern life; in the car you drive, the chair you are sitting in, the bed you sleep in, the fridge you use daily and the shoes you are wearing – all these, plus innumerable other items you use every day, contain polyurethanes.

COMFORT WITH POLYURETHANE Polyurethane insulation helps to ensure increased energy efficiency in buildings, thus protecting the Earth’s valuable resources. ‘Spray polyurethane foam’ describes a category of high-performance spray foam insulation and an air barrier material that delivers multiple benefits in one application.

resistance, increased occupant comfort, improved indoor air quality, reduced operating/electricity costs and lower environmental impacts.

When sprayed on, polyurethane foam forms a continuous, even insulating layer without joints or gaps, thus eliminating any thermal bridges. Spray foam is the ideal solution for a wide variety of substrates and shapes because it adapts to any profile without gaps.

Because spray polyurethane foam adheres to various substrates (with no additional adhesive layer required) and seals hard-toreach penetrations, it provides unequalled air sealing properties for the entire building envelope. Reduced controlled air leakage results in lower electricity bills and reduced greenhouse gas emissions. In fact, air leakage accounts for 25-40% of the energy used for heating and cooling a typical home. The property owner can save up to 20% on heating and cooling costs by proper sealing and insulating. Spray polyurethane foam can go far in helping both home and commercial building owners achieve these results.

Advantages include high insulation values, near-zero air permeability, increased building strength, severe weather

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P O LY U R E TH A N E S PR AY F OA M

Spray polyurethane foam products from BASF use zero ozone-depleting blowing agents and emit no volatile organic compounds (VOCs). Moreover, the insulating air barrier also prevents outdoor allergens and pollutants from entering into homes, and so improving on indoor air quality. And due to their high R-value range and air barrier/infiltration characteristics, closed cell spray polyurethane foam has the lowest overall environmental impact in energy use, resource consumption, air emissions and land use.

POLYURETHANE AND THE ENVIRONMENT Polyurethane spray foam is a closed-cell, rigid polyurethane foam, produced by an exothermic reaction between a polyol and isocyanate component. At the end of the reaction phase, the foam begins to solidify and cure. Once this reaction has occurred, a substance is created that is safe and extremely versatile.

Although polyurethanes can be recycled, the most environmentally sound choice may not always be recycling.

Recycling requires a great deal of energy and, in some cases, the most sensible option is energy recovery. This can be achieved through clean and careful incineration, whereby pollutants are filtered out and energy is produced as a result of the combustion process.

HOW DO POLYURETHANES ACTIVELY HELP CLIMATE CHANGE? The spray polyurethane foam is an extremely efficient insulator and, when properly applied, it can improve the energy efficiency of buildings, thereby reducing the amount of carbon emissions

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generated by heating. Polyurethanes contribute to sustainability through the applications in which it is used, which, like in insulation, contribute to the conservation of energy. The longterm durability and high performance of polyurethanes means that this material has a longer life than other alternatives, making its contribution to energy conservation higher (relative to the energy consumption for its production).

The amount of energy that could be saved through insulation of buildings to optimal standards worldwide could reduce CO2 emissions by 20%.

Approximately 51 million kWh of energy is saved each year in the EU by the use of polyurethane insulation. Furthermore, the amount of energy used to produce enough polyurethane insulation for one house is subsequently saved in the space of just one year, thanks to the insulation provided.

Polyurethanes are heat resistant and depending on the choice of starting material, short-term heat resistance up to 250˚C can be achieved. BASF’s spray polyurethane foam passed the South African fire rating – SANS 10-177 Part 10, including rating SANS 10-177 Part 12 for external roof covering.

The lifespan of spray polyurethane foam will depend on the application and the type of use. Spray polyurethane foam has been specially developed for the construction industry. It has proven itself for over 30 years and is used worldwide for all applications in construction.

Polyurethanes’ popularity is also growing due to its affordability, among many other positive attributes.

The price of polyurethanes should always be viewed relative to its performance and to how much energy is saved during its lifetime. In terms of cost, polyurethanes are very competitive.

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P O LY U R E TH A N E S PR AY F OA M PERFORMANCE MATERIALS (A DIVISION OF BASF SA) AND ITS PRODUCT RANGE BASF manufacture closed cell spray polyurethane foam products for residential and commercial construction, providing the right spray polyurethane foam system for any type of well-engineered building envelope. The BASF twocomponent application process features a wide range of specially formulated polyurethane spray foam offerings that meet specific site and surface requirements.

BASF ELASTOSPRAY速 APPLICATIONS: 1. INSULATION ON SOLID PITCHED ROOFS

Solid roofs are basically composed of sloping external walls with all the associated structural properties. The roof is quickly assembled from prefabricated units on site by the manufacturer and virtually any shape of roof is possible. Since solid roofs normally consist of concrete, they have primarily fire and acoustic insulation benefits. They provide an effective screen for street and aircraft noise and ensure maximum fire resistance. Other aspects are a high level of safety in the event of storms and thermal insulation in summer and winter. This provides a pleasant living environment under the roof as a result of the external insulation of the rooms.

2. INSULATION OF LIGHTWEIGHT INDUSTRIAL FLAT ROOFS

As with the insulation of solid flat roofs, thermal insulation of industrial roofs is one of the traditional applications of Elastospray 速. Roofs of warehouses, production facilities, exhibition and sports halls are normally made of profiled metal sheet and have relatively large spans. These lightweight roof constructions require a lightweight insulating material to be

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able to take the additional loads produced by snow, wind and rain. Because of its in situ installation properties the spray polyurethane foam can be applied to the metal sheet profile seamlessly, coating both the peaks and troughs in the profile.

The insulating layer then only needs to be provided with UV protection. Vapour barriers, sloping screeds or other additional materials are not normally needed, saving valuable time and money.

3. ROOF AND WALL INTERNAL INSULATION OF LIVESTOCK, AGRICULTURAL BUILDINGS AND INDUSTRIAL-TYPE WAREHOUSING

Agricultural buildings such as stables, barns and crop stores are exposed to major stresses. Transpiration and excretions from animals, exhaust fumes from agricultural vehicles and high levels of humidity and condensation affect the building construction, along with external weather conditions such as storms, rain, snow, hail and heat. Elastospray 速 spray foam caters for all possible external geometries and insulates the roof both from inside and from outside. The cured material provides effective protection from draughts and strengthens the building through the compact, jointless insulating layer.

Elastospray 速 has a positive effect on the life and value of the fabric of the building.

Just like any passive house, the cornerstone to maximum savings and environmental benefit is insulation and air-tightness.

Without these key elements, the potential of innovative technologies and smart construction goes to waste.

Once again, spray polyurethane foam is just another example of how polyurethanes contribute to improving comfort and protecting the planet in new ways every day.

For more information, visit, www.pu.basf.eu.

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Features • • • • • •

Superior thermal insulation Air-tightness Watertight sealing Low weight Adds reinforcement to structures Ease of application

Rigid polyurethanes offer a versatile array of application methods of all construction requirements, be it in the form of sandwich panels or sprayed-on foam.

Elastopor® and Elastopir® sandwich panels

Elastospray® and foam system

Performance Materials’ innovative rigid technology solutions in energy efficient construction materials ensure that houses stay cooler in summer, warmer in winter and cost-effective all year round.

BASF South Africa (Pty) Limited • Performance Materials Division enquiries-pu-za@basf.com • www.pu.basf.eu

COV E R S TO RY

Smell a rat?

Why roof infestations must be taken seriously Dirty, dusty and disgusted. Is that how you feel after an unplanned, unexpected and unwanted climb up into the ceiling to fix a TV cable, mend some wiring, or adjust the geyser?

Article provided by Diederik van 't Hof, founder of Roof Rats. All images courtesy of Roof Rats.

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he roof space above our heads is a longforgotten, often ignored and mostly neglected ‘extra’ for the house or office. After we’ve – reluctantly – sorted out the immediate problem, the hatch gets closed again and we’re happy to forget about the dust, rat droppings and general mess that might be developing up there.

What we need to remember, though, is that a roof space, or roof cavity, is also the ideal home environment for a wide variety of non-rent-paying creatures. Warm, dark and quiet, it offers a low risk of encountering predators. You can comfortably add to this the very good chance that food will be available nearby in rubbish bins and bird feeders, or on bird tables and compost heaps. To top that, water will likely be freely available from pet bowls, swimming pools, water features and leaking taps. And what is the net result? A man-made heaven for rats, bats, birds and even feral cats. An ideal environment for them in which to live, prosper and multiply. And let’s not forget the unwanted insects that survive and multiply by feeding on the mess created.

Insulation can be treated but only if still in good condition.

RATTED OUT Rats can be the creatures of nightmares. Cute cartoon characters belie their role as ravenous, diseasecarrying predators. Rats eat just about anything. They can survive on birdseed, leftover food in dustbins, and dog food. They will readily enter homes to eat out of the pantry, or steal food left out in the kitchen.

There are 67 described species of rat, which actually means the species belonging to the superfamily Muroidea. This encompasses the rodents we generally refer to as rats and mice. We commonly use the two different terms to signify the animal’s size, rather than being based on actual physical differences. ‘True rats’ are members of the genus Rattus, of which the most significant to humans are the black rat, Rattus rattus, and the brown rat, Rattus norvegicus. Many members of other rodent genera and families are also referred to as rats and share many characteristics with true rats.

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Pest infestations cause a serious health hazard.

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The brown rat is also known as the Norway rat, house rat, grey rat, barn rat, and wharf rat. It is the best known, and larger than the black rat. Black rats are also called roof rats and ship rats. Whatever you choose to call them, they are a nuisance, a pest, and present a real danger in the home and workplace.

Generally, when we refer to rats or a rat infestation, we are referring to these two species interchangeably.

Rats are actually incredible creatures. They’ve found the ideal partners in life…humans! Humans aided and abetted the spread of rats across the entire globe by taking rats aboard as shipmates during the age of exploration, so that now rats are found wherever people have settled. So successfully has the rat colonized its preferred parts of the human landscape that, for New York City, estimates are that rats outnumber people by a ratio of 4:1, with some estimates as high as 12:1.

THE RAMPANT RODENT A rat infestation in the roof is usually heralded by the sound of something galloping across the ceiling at 2am, waking the family. A very bad infestation can be likened to the sound of the Springbok rugby team holding a match practice in the ceiling.

Rats can chew on wires and cables.

Rats head up to the roof space for several reasons – they get warmth from geysers and hot water pipes, and they gain shelter and protection from predators.

Occupancy of the roof leaves quite a serious legacy, though, especially if the home owner attempts a DIY solution by poisoning the rats. There will be mountains of rat droppings as well as old decaying rat corpses and skeletons left behind. In addition, rats urinate every few seconds in order to leave scent trails and territorial markers designed to warn off potential competitors.

All these leftovers – droppings, bones and hair – in addition to the normal dust that accumulates in the roof space over the years, make for a serious health hazard. Everything eventually crumbles to dust, and that dust will gradually find its way into the living space of the house. Should you neglect to clean out your roof space, you will, in effect, be breathing in the old rat dropping particles and other unhygienic elements as the debris filters down into the living space through light fittings and other gaps in the ceiling.

BIRDS OF A FEATHER...

Birds pose similar issues in the roof space. Mostly, they will be there to nest. In Gauteng, the three bird types most commonly associated with this behaviour are the pigeon (both feral pigeons and speckled pigeons), the house sparrow, and the common mynah. Cape Town has an extra issue with the common starling. The only indigenous species in this list is the speckled pigeon, with the others all being introduced, or alien, species.

However, when it comes to town, the speckled pigeon becomes an immigrant of sorts: Originally a mountain biome species, it now finds the perfect artificial habitat in those man-made mountains called buildings.

Roof tiles often have to be removed to get to nests.

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Pigeon nests grow bigger each year as nesting material gets piled on.

Unwelcome guests.

Pigeons will nest in the same place year after year.

Each year the nest will enlarge as additional nesting material is added to the growing pile. Pigeons are also notoriously messy. They don’t remove the faecal sacs (the nestlings’ excrement) from the nest area, as do most other bird species. The nest forms a mass of sticks, grass and faeces, growing yearly. To date, the biggest nest Roof Rats has removed contained a massive 12.5kg of nesting material. The nest was in a roof area where some light could enter, so in addition to the normal mess, fungi and cockroaches had also found a home amid the nesting material. Cases like these pose a serious risk of falling through the ceiling, and it can get even worse – Roof Rats has seen nests constructed on top of old nests built on a foundation, if that word can be used, of dead birds!

THE BIRD’S-EYE VIEW In general, all bird nests will contain some unpleasantries, while most will harbour bird lice.

You can expect to find the adult roosting area in the general vicinity of the nest – these roosts also lead to a fair amount of mess when adult birds spend their nights perched on a beam.

RIGHT OFF THE BAT Bats pose their own unique issues. A protected species in South Africa, it is illegal to kill or harm bats in any way. Actually, they are incredibly worthwhile to have around your house, as they eat thousands of insects each night and help keep the area insect-free. But, there’s a downside: The buildup of bat guano in the roof is a definite health risk.

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A MATTER OF HEALTH AND SAFETY When pests invade the roof area, you suffer the ever-present risk of physical damage. Rats chew wires and cables, bird mess stains ceiling boards, and if a big colony of birds or bats assumes long-term residential status, the ceiling can actually collapse under the weight of the mess created. But, more seriously, it is clear that the infestation of any animal in the ceiling area poses a health risk.

Although this is, thankfully, extremely rare, old faeces and animal mess can cause diseases in humans. There are few recorded cases in South Africa, and the actual infection would normally only occur in persons with already weakened immune systems. The three diseases most generally associated with pigeon droppings are:

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• Histoplasmosis—also associated with bat droppings, this is basically a fungal infection in the lungs caused by breathing in the spores produced by the fungi living on the faeces.

• Cryptococcosis— found in the droppings of birds, mainly pigeons, known to cause meningitis.

• Psittacosis—also termed ‘parrot fever,’ it is a bacterial disease that can infect the lungs. This is rare. The disease is spread between birds through their droppings and old feathers, and is transmitted to humans by direct contact or inhalation. Most cases are, however, restricted to people in direct contact with pet birds or working in the poultry industry.

Rats are responsible for spreading a huge list of diseases. The most infamous outbreak of a rat-borne disease is the Black Death in Europe, which killed an estimated 150 million people in the mid-1300s. Diseases spread by rats are passed on to humans in a variety of ways: • Murine typhus and ‘The Plague’ — spread by the fleas living on rats.

• Rat-bite fever — spread by direct contact with rat droppings and urine.

• Leptospirosis — comes to you courtesy of rat urine in water.

Whichever disease you choose, whichever vector is in your area, having rats close by and in the roof is not good!

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CHANGING THE RAT RACE The only real way of dealing with an infestation of rats, bats or birds in the roof is to remove or relocate them. But relocation will only work if the animals are then excluded from the roof.

Bats have been known to return to a roost from more than 600km away after a relocation exercise. And we all know the abilities of pigeons to come home...

Rat or bird exclusion is normally a one-day job involving a skilled team of trained personnel. It entails blocking up the access holes, probably removing a large number of the roof tiles to get to these points, and then blocking with a variety of materials before finally relaying the tiles. IBR sheeting and corrugated iron roofs can also be handled, but then the problem of re-waterproofing the roof needs to be addressed.

Dust and mess in a roof must be cleaned out by professionals.

Droppings, feathers, dust and debris all add weight to the ceiling.

GATHERING DUST Another often overlooked problem in the roof is the general build-up of dust. A roof is porous. When tiles don’t fit together in completely airtight fashion, or cemented walls and bricks don’t precisely meet up with the roof trusses, the wind will waft sand, dust and leaves into the roof. Without cleaning, and left indefinitely or for a prolonged period of time, what will that roof area look like? Consider years and years’ worth of continual dust build-up, then add old building rubble, old geysers still full of water, whatever the plumber or electrician has left behind, and whatever the previous owners decided to store up there, and you’ll get the pretty grim picture.

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The only way to deal with a bat infestation is to chase them out and block their access. This is an extremely long and complicated process that will entail multiple visits to the property, since bats are for the most part both migratory and territorial animals. In reality, bats usually get chased out on the first visit, and they fly off to relocate. The work gets done at the property, but after a few days the bats come back. They find a new way inside. Somewhere they will discover a small hole, perhaps as small as a 50c piece, and re-enter the roost.

The experienced Roof Rats team finds that it takes up to six or seven visits to successfully exclude a bat colony from a property. Therefore, if the bats are not an irritation, and there is no health hazard, Roof Rats’ advice is actually to leave well enough alone and just enjoy watching them clean up the insect population in the garden.

The only way to deal with the dust and mess in the roof is to clean it out. An average property involving about 250m2 will produce more than 30kg of dust and droppings. And that doesn’t include the old wires, pipes and other junk. Old geysers and tired insulation are another concern. Very old insulation material will eventually disintegrate into fluff and powder, or break apart. This adds to dust in the roof, and along with the normal wind-borne dust and the droppings it can cause all sorts of problems below, meaning inside the living or working area. Insulation can be cleaned and disinfected, but only if it is still in reasonable condition. Should it be breaking apart, the only solution is to remove it and have a new installation done.

It makes no sense to lay thousands of rands’ worth of new insulation over a dirty, foul-smelling old mess. The most effective way to deal with an old and dirty roof area is to vacuum it out. A good vacuum will remove all the dust and droppings. Proper sanitizing treatment can also get rid of any lingering smells and germs, and help create a healthier environment overall in the house.

THE BOTTOM LINE When it comes to the roof cavity, it’s the forgotten part of the house or building, the part that you don’t want to think about – the horrible, messy, dirty, spider- and rat-infested area. But when it comes to the effects of neglecting that obscure part of the building, you’d be well-advised to invest in a good cleanout, an effective animal exclusion solution, and a disinfectant treatment. And when it comes down to your health, nothing can be more important.

To contact Diederik van 't Hof or learn more about Roof Rats’ services, call (011) 057-7020, send an e-mail to info@roofrats.co.za or visit www.roofrats.co.za.

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E V E NT S

Be the change:

Discover new sustain-ability in the built environment Safintra brings international speaker to South Africa for its ‘Sustain-Ability 2015’ roadshow

The Malgas Packing Warehouse with solar panels in the Western Cape: Installed by Freephase using Safintra sheeting and S-5 clamps.

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fter its resoundingly successful ‘Metal Roofing Innovations’ Roadshow in 2013, Safintra is again hosting a roadshow in 2015. The theme is ‘Sustain-Ability: Be the Change’ and will focus on materials, roofing systems and technologies that have dramatically improved the performance of metal roofing and cladding.

FOLLOW-ON PRESENTATIONS WILL BE HOSTED BY SAFINTRA: Polokwane: Thursday 4 June 2015 Nelspruit: Thursday 11 June 2015 Port Elizabeth: Thursday 2 July 2015 Bloemfontein: Tuesday 4 August 2015

Globally, metal roofing is leading the charge for sustainable change, and of the individual change agents and thought leaders, few are as prominent as Rob Haddock. He will be the guest speaker at the Safintra ‘Sustain-Ability 2015’ events.

THESE EVENTS WILL BE CPD ACCREDITED – DETAILS TO FOLLOW. Cape Town: Monday 11 May 2015 Durban: Wednesday 13 May 2015 Johannesburg: Thursday 14 and Friday 15 May 2015

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SOLAR INTEGRATOR WORKSHOPS WILL ALSO BE RUN CONCURRENTLY

BY ROB HADDOCK: Safintra will also be inviting solar integrators and PV panel installers to attend concurrently run workshops on solar panel installation using S-5 clamps and components.

S-5 clamps offer significant cost and lead time savings over most other mounting systems. They are warranted for the full service of the roof and the panels, and offer structural performance that is well in excess of engineering requirements for weather and structural stresses.

The workshop will explore installation detailing and technical aspects of roof mounted solar installations and the positive impact of fast installation on site. This subject is highly topical in South Africa as Eskom moves to increase off-grid capacity and to encourage private participation in energy co-generation.

Rob Haddock at the 2013 Safintra Roadshow.

Rob Haddock is Founder and Director of the Metal Roof Advisory Group of the USA. He is a well-recognized authority on metal roofing, a technical writer for many trade publications, a trade curriculum author, inventor and educator.

He presents at Metalcon International Trade Conference and Exhibition in the USA every year and his presentations have been rated #1 from a field of up to 52 offered seminars for 24 consecutive years.

He teaches for the University of Wisconsin, FRSA, NRCA, RCI and others. Rob’s technical writings have been translated into 5 languages and he has lectured in at least 8 countries to producers, contractors, designers, specifiers and end-user groups.

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Rob Haddock is the inventor of the S-5 range of patented clamps which Safintra distributes throughout Africa on an exclusive basis. For his contributions to the industry, he has received numerous awards, including: 2012: Inaugural Inductee to Metal Construction Hall of Fame 2015: Larry Swaney Award for contributions toward the furtherance of the metal construction industry of North America.

Safintra is a pan-African metal roofing manufacturer and is part of the largest metal roofing company in Africa called the Safal Group. It leads the market in offering metal roofing systems and solutions which have made metal roofing the preferred choice for building owners and professionals in a green-focussed industry.

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COO L ROO F S

The science behind cool roofs As mean temperatures continue to rise alongside rocketing energy (read cooling) costs in South Africa, savvy architects, builders and property owners are looking at new-generation roofing materials to aid them in reducing the heat load in buildings.

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teel is an obvious choice, with its high solar reflectivity and low thermal mass (tendency to absorb and retain heat energy). Innovative aluminium-zinc (AZ) coating technology such as Safal Steel’s has ramped up the durability and versatility of steel sheeting, while a pre-painted option

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provides roofing durability, ease of maintenance and good looks.

But how does colour-coated steel perform thermally compared to a conventional steel roof or other building materials?

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COO L ROO F S With darker colours being less heat-reflective, it may be logical to think that a dark tint on colour-coated roof sheeting will cancel out the material’s superior thermal performance.

However, leading producers of colour-coated steel are turning to science to produce thermally efficient paints that mitigate the low reflectivity of dark colours.

THERMALLY EFFICIENT PAINT Heat-reflective pigments in darker paint colours raise the thermal performance of colour-coated steel and improve durability in terms of gloss, colour stability and film integrity. Safal Steel has recently introduced such a paint system in the two darkest colours, ‘Slate’ and ‘Thunderstorm’, in its COLORPLUS ® range.

Sasfin building in Gauteng using COLORPLUS® Slate 0.58 profiled in Pro Roof ’s Prolok 700 concealed fix.

UNDERSTANDING THE SOLAR REFLECTIVE INDEX (SRI) To calculate a constructed surface’s ability to reflect solar heat, the SRI takes into account a roof’s solar reflectance (the proportion of total solar radiation that is reflected back into the atmosphere), plus its thermal emittance (the proportion of absorbed solar radiation that is radiated back into the atmosphere) as well as a medium wind coefficient to generate a value of between zero and 100.

A black shingle roof will hence have a far lower SRI than a white-coated steel roof because of the former’s far lower reflectivity (owing to its dark colour) and higher thermal mass (owing to its greater density and higher insulation properties).

Interestingly, unpainted metallic-coated steels have a lower thermal emittance than painted ones, whatever the colour.

In general, colour-coated steel also performs far better than traditional roofing materials such as concrete or clay tiles (which have SRIs of 17 and 36 respectively).

APRIL 2015

Safal’s COLORPLUS ® range is produced by continuously hotdipping rolled steel in a 55% aluminium, 43.5% zinc and 1.5% silicon alloy, then skin-passing it for the colour-coating line, where it is coated with a two-layer modified polyester paint system and baked. Manufactured under licence to BIEC lnternational lnc., the worldwide licensor and acknowledged leader in AZ technologies, Safal’s COLORPLUS ® range boasts properties that make it long-lasting and aid its heat reflectivity, such as anti-chalking, fade-resistant pigments and particle resistance.

ADVANTAGES OF THERMALLY-EFFICIENT PAINT SYSTEMS INCLUDE: • A cooler building • A cooler city with less of the discomfort and environmental implications associated with urban heat islands (UHIs) • Reduced costs, both in terms of air-conditioning equipment needed and operational costs • Reduction of environmental impact in terms of heat generation and energy requirements for cooling The superior reflectivity and durability of Safal’s colour coating system, including the paint technology on its darker colours, coupled with competitive pricing, top-notch quality, ultraviolet (UV) resistance and corrosion resistance, hardness and flexibility, make COLORPLUS ® an ideal product for local South African conditions.

For more information, visit www.safalsteel.co.za.

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L EG I S L ATI O N

The ‘New’ Construction Regulations: Part 2 In the previous issue of SA Roofing, we provided background information and considered several influencing factors that have contributed to the development of our construction regulations as they stand today. Now we take a closer look at the Construction Regulations of 2014, which the legislator intended to be applicable to all stakeholders within the construction sector, and how changes to previous legislation affect the industry.

Article by Douglas (Doug) Michell, MBA North – Construction Health and Safety

Image by Joshua Davis Photography

CONSTRUCTION REGULATIONS 2003 VERSUS 2014: CHANGES THAT IMPACT INDUSTRY By including, and therefore placing legal responsibilities on key stakeholders, the legislator took steps to ensure that specific roles are defined and that all parties can work together on behalf of the industry, and for the industry, to improve health and safety performance.

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Construction Work Permit (CR 3) and the Competent Person Project initiation begins with the client. Therefore, and because client and client representatives’ decisions influence the performance of others in the project lifecycle, clients are best positioned to initiate consistent change in achieving higher execution in construction health and safety (CHS) performance.

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L EG I S L ATI O N

The amended construction regulations of 2014 introduce a construction work permit system. When the construction work period exceeds 180 days, will involve more than 1800 persons, or the contract is of a value equal to or exceeding R13 million (CIDB grading 6), the client must apply for a work permit. As part of the application process the client must submit, among other documents, a baseline risk assessment as well as project-specific health and safety specifications. The previous regulations suggested that clients could appoint an ‘agent’ to act on their behalf. The 2014 version states the client must appoint an agent where a construction permit is required.

The agent does not necessarily have to be a ‘safety’ agent. The regulation refers to the definition of ‘agent’ as meaning any competent person who acts as a representative of the client, the intention being to recognise the role of the professional team. Another important point to note is that the ‘person’ is not necessarily an individual but rather the ‘legal persona’. The ‘competent person’ is defined in the update as requiring the person to have knowledge, training, experience, and where applicable, qualifications specific to the work or task being performed. Additionally, the person is required to be familiar with the Occupational Health and Safety Act and relevant regulations. This suggests that the person selected for the stated appointments in the regulations must have exposure to and an understanding of the relevant legislation, whereas persons appointed into the CHS functions would of course be expected to have more than just an understanding of the legislation.

THE CONTRACTOR: • As the person appointed as an agent (not necessarily Construction Health and Safety Agent) to act as the client’s representative, is competent to do so. (Suggesting that a consolidated CV should be submitted.)

• That every principal contractor is registered and in good standing with the compensation commissioner (or approved compensation body).

• That project health and safety specifications are included in tender documents (or relevant sections thereof as applicable and required).

• That submitted tenders are assessed to ensure that potential principal contractors have made adequate provision for the cost of health and safety measures in the proposed construction project.

• That the principal contractor to be appointed has been evaluated for the necessary competencies and resources to carry out the construction work safely.

Based on the successful application for a permit, the Department of Labour will issue or assign a permit with a regionally-specific, unique number for each construction site.

This number will be noted on the permit and must be displayed at the entrance to the construction site. (The most conspicuous spot would most probably be on the project board.) What is very important to note is that the permit is not transferable – per Annexure 1.

CLIENTS’ DUTIES (CR 5) PRACTICAL IMPACT With the requirement that the health and safety specifications must be coherent and project specific, the contractors should receive the work permit in good time before a project starts.

This will allow for accurate costing on health and safety requirements, which may be over-and-above the norm required by implementation of relevant legislation. Furthermore, the contractor must ensure that there is an authentic copy of the construction work permit on site.

Any construction work not meeting the criteria stated in CR 3 reverts to the Notification of Construction Work as previously required in CR 3, now CR 4.

ADDITIONAL REQUIREMENTS APPLICATION FOR A CONSTRUCTION PERMIT CR 3 When reading Regulation 3 in conjunction with Regulation 5 (Duties of the Client), it is evident that merely filling in the Annexure 1 form and submitting it along with the required Baseline Risk Assessment and CHS Specifications may not be sufficient to secure the construction permit. CR 3(5)(b) suggests that a written declaration is made on the following:

THE DESIGNER: • has been provided with the health and safety specifications and the baseline risk assessment; • has taken the prepared health and safety specification and baseline risk assessment into consideration during the design stage; (Suggesting that the designer signs the declaration.)

• has carried out all the designer-stated responsibilities as stated in regulation 6. (Suggesting that the designer signs the declaration.)

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The duties have essentially remained the same but now include the requirement that the client must initiate the application for the required construction work permit. Another significant inclusion is the requirement that the client appoint an ‘agent’ where such a permit is required. One concern is that the application of this requirement along with the SACPCMP’s scope of services for the registration of CHS practitioners will cause confusion.

Client-nominated contractors is dealt with in CR 5 1(i), suggesting that the client must take reasonable steps to ensure co-operation between all contractors appointed by the client.

An additional requirement not previously included is that the client must ensure that, where a fatal or permanent disabling injury occurs, the contractor complies with relevant legislated reporting requirements.

DUTIES OF THE DESIGNER (CR 6) AND DESIGN IMPACT Design occurs upstream of construction, suggesting that designers influence CHS directly and indirectly. Direct influences could be through the general design of the structure, which may include irregular shapes, a choice of materials, finishes and methods of fixing. Indirect influences could be through the selection of procurement systems and the preparation of contract documentation, decisions regarding project duration, and the status of design upon commencement of construction.

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DESIGN - DEFINITIONS ‘Design’ in relation to any structure, includes drawings, calculations, design details and specifications.

In terms of how these revisions impact other construction professionals, they could potentially result in more open communication and improved service delivery. Also, referring to Temporary Works CR 12, the temporary works designer is now directly involved in the application of designs of temporary works during construction work.

L EG I S L ATI O N

The previous regulations included the duties of the designer in Regulation 9 – Structures. But that tended to dilute this important function and responsibility. The duties are now captured in a stand-alone regulation, namely CR 6 – Duties of Designer. The definition has been changed to specify that the person must be a competent person, and now also includes designers of temporary works and building services engineers who design details for fixed plant.

In the next issue of SA Roofing, we will conclude our series on current construction legislation by focusing on the duties of the principal contractor and sub-contractor and the potential implications for the roofing sector.

REFERENCES • Smallwood Role of Designers 2003 • OHS Act and Construction Regulations

‘DESIGNER’ MEANS • a competent person who— • prepares a design; • checks and approves a design; or • arranges for any person at work under his or her control to prepare a design (including an employee of that person where he or she is the employer); or • designs temporary work, including its components.

• an architect or engineer contributing to, or having overall responsibility for, a design; • a building services engineer designing details for fixed plant; • a surveyor specifying articles or drawing up specifications; • a contractor carrying out design work as part of a design and building project; or • an interior designer, shop-fitter or landscape architect.

FOR MORE INFORMATION, CONTACT: Master Builders Association North (t) 0861 622 667 or 011 805 6611 (e) info@mbanorth.co.za (w) www.mbanorth.co.za

Vardy mining & waterproofing NuSeal Waterproofing - Proudly South African Waterborne emulsion as never seen before NuSeal Waterproof & DampSeal NuSeal was developed as a one-pack application coating which is membranestructured, completely water resistant and non-toxic when dry. The product carries a strength of 3mpa bonding on cement and is UV resistant. Because of its composition, it is hard-wearing and has excellent weather capabilities. It remains flexible and can be used on most substrates.

NuSeal is easily applied by compressed air at 6 bar pressure to a 0.5-2mm thickness as waterproofing or a rubber coating. It can be sprayed onto the smallest cracks and corners and can also be brushed onto small areas. Easily repaired by just brushing or spraying over damaged or worn areas without the need to remove the existing product.

NuSeal Waterproofing benefits: • Bonding strength 3mpa • Fire retardant • Insulation SANS 10400 • Quick installation at 200-400m per day • No joints • Available in most colours • Adheres to any roof, dam, wall, basement, retaining wall, veranda, ceiling, gutters, concrete, sink, wood, polystyrene and drywalling • Walk on it, tile on it, plaster over it, drive on it • Non-slip

NuSeal Waterproofing • Waterproofing • Dampproofing • Dam Sealer • Roof Waterproofing • Rusted Sink Roofs • Concrete Roofs • Internal & External Walls • Sewers & Channels • Internal Drywalling NuRustcon • Rust Prevention & Cure • On Metal

Tel: (011) 022 1727/ 8 • Cell: 081 731 8172 • E-Mail: info@vardymining.com • Web: www.vardymining.com •

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WATE R PROO F I N G

Firestone EPDM rubber lining top choice for green roofing and waterproofing Durability is a non-negotiable quality in rubber lining systems and, with the global trend towards sustainable building, the environment has also become an essential consideration in waterproofing and lining products and practices.

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aterbrothers has been working with the Firestone EPDM lining systems since 2009 and is the leading supplier and installer of Firestone EPDM in South Africa, from their RubberGard for roofing waterproofing to the GeoGard for larger commercial dams, to the PondGard for decorative ponds and water features.

The product is available in large panel sizes up to 15m in width and 61m in length, resulting in fewer field seams and shorter installation time.

Firestone’s EPDM rubber roofing system works for both commercial and residential applications and over 1 000 000 000m2 of RubberGard has been installed worldwide since the 1980s. Its ease of use and simple seaming technology makes it a sought after waterproof lining system across the world.

The main component of Firestone EPDM Roofing Systems is RubberGard ÂŽ EPDM, a single ply rubber membrane and due to its composition, offers unmatched resistance to ozone, UV radiation, extremes of both low and high temperatures, and ultimately ageing.

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Firestone mechanically adhered system

Firestone RubberGard Ž EPDM remains highly flexible even at temperatures down to -45°C and the membrane can also elongate over 300% to accommodate building movements and temperature fluctuations, making it ideal for waterproofing and green roofing. The material requires little or no maintenance, and combined with the inherent durability and competitive installed cost makes for a very low life-cycle cost.

Firestone RubberGard ÂŽ EPDM is an inert material with limited environmental impact during manufacture and use and the manufacturing facilities have received ISO 14001 certification for their environmental management system.

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WATE R PROO F I N G

Firestone fully adhered system

Firestone ballasted system

Firestone inverted system

Waterbrothers works closely with its partner companies to provide the best service and collective knowledge available when undertaking any project. The company prides itself on building long-lasting relationships with all its clients and suppliers.

Waterbrothers is in a unique position to be able to offer a business opportunity to potential agents and contractors nation wide.

For more information, visit www.waterbrothers.co.za.

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S TE E L CO N S TRU C TI O N

Engineering and the

unknown in steel construction US Secretary for Defence, Donald Rumsfeld, famously said it in 2002, “There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.”

Amanuel Gebremeskel, Development Engineer at the Southern African Institute of Steel Construction.

“The things that we don’t know we don’t know cause the greatest havoc in society in general and, of course, the steel construction industry is no exception,” says Amanuel Gebremeskel, Development Engineer at the Southern African Institute of Steel Construction (SAISC).

He says that one of the challenges in the engineering sector today is that while engineers are generally great at designing according to what they know and what they know they don’t know, they don’t often address the ‘unknown unknowns.’ “This is a mistake of monumental proportions,” says Gebremeskel.

“We can and must design for these unknowable eventualities.

There are ways to approach this with the minimum requirement

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being the study of redundancies in order to achieve ultimate resilience and robustness,” he says, adding that many of the SAISC’s training courses include such instruction.

But the problem doesn’t end there. “Many of the large project houses, including the parastatals, are not doing enough training and even though they may be aware that organisations like the SAISC have a wide range of training programmes that could help prevent a myriad future problems in steel construction, they, for a variety of short-sighted reasons like cost, or the spurious belief that the main contractor is solely responsible for the risk, hardly do any training at all. This is creating a dire situation in South Africa.”

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Among the host of SAISC programmes relevant to the steel industry are courses covering all aspects of Steel Design, Business Development and Marketing, Financial Management, Legal and Contractual matters, Economics of Steel Design, Connection Design, Steel Bridges, Materials Handling and more.

Mainly for this reason, the SAISC has recently launched the Steel Academy, an umbrella body for all its training initiatives.

“This is an innovative branding exercise, aimed at drawing attention to the SAISC’s top-draw training and upskilling programmes,” says SAISC CEO, Paolo Trinchero.

Through direct academic input, the SAISC also assures the academic quality of the Civil Engineering faculties at South Africa’s top five universities including Pretoria, Wits, Stellenbosch, Cape Town and KwaZulu-Natal. The architectural faculties of some of these institutions also receive input from SAISC. At present, the SAISC is also mentoring five interns from the Vaal University of Technology.

“Training is critical to the long-term success and financial performance of any company and is vital to the continued sustainability and competitiveness of not only the steel construction industry in South Africa but to all industries,” says Trinchero, who is passionate about reversing the dearth of skilled engineers in the industry through the newly-launched Steel Academy.

The Steel Academy provides short- and long-term courses, structured around the fact that the attendees also have jobs to fulfil. Its interactive training uses a hands-on approach, with personal mentoring, examples, calculations and discussions.

On some courses the attendees are required to do work related to their own companies.

S TE E L CO N S TRU C TI O N

“The structural element of big projects is always on the ‘critical path’ and companies should be putting more effort and resources into this aspect of the project than other aspects.

This, simply put, translates into investing in more training for the people who are managing the critical processes,” says Gebremeskel.

“Cutting back on training in times like these is false economy,” says Gebremeskel. “Sending engineers for training now will have a direct impact, translating into increased productivity in the workplace and, in the case of more complex systems, will bring about greater reliability significantly reducing overall costs for the steel construction industry in particular and the country as a whole,” concluded Gebremeskel.

For more information on the courses offered by the SAISC Steel Academy, call 011 726 6111 or visit www.saisc.co.za.

Reg No: CoR18.3 2013/068719/07

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www.hengfuscrews.co.za APRIL 2015

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TI M B E R ROO F I N G

Prevention is better than cure

Sadly, many building owners choose price over quality with regards to workmanship and materials, which can lead to costly, disastrous and sometimes even life-threatening situations. This couldn't be more important when it comes to the roof structure.

Article by Fred Wagenaar, Executive Officer of the Institute for Timber Construction, South Africa (ITC-SA).

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he roof structure is arguably one of the most important construction elements of any residential building to be constructed.

It protects the occupier’s property, finishes and inhabitants from the elements and it is also one of the largest, heaviest and most costly structural components in any home design. Therefore it is logical to expect that a great deal of planning, design and know-how would be invested in order to create an aesthetically pleasing and sound structure that can safely carry the induced loading, as well as offer acceptable longevity and aesthetic appeal for the lifespan of the building.

While this all sounds logical, many building owners choose price over quality with regards to workmanship and materials, which can lead to costly, disastrous and sometimes even lifethreatening situations.

WHAT ARE THE ESSENTIAL ELEMENTS THAT NEED TO BE CONSIDERED IN ENSURING A SOUND TIMBER ROOF STRUCTURE? 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 bear these structural markings, it will need to be condemned.

Consumers should beware of unmarked timber or timber with black crosses at the end as this marking confirms that the timber in question is not structural timber.

Photo by Kyden

3. The right engineering systems must be used: The ITC-SA provides accreditation for four systems that are recognized for meeting all prescribed design requirements in South Africa.

• MiTek Industries SA • Roof Truss Products • International Truss Systems • Multinail Africa

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.

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TI M B E R ROO F I N G

Note: The metal connector plates used must be supplied by the specific 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.

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.

BEWARE OF THE FOLLOWING COMMON PITFALLS: • Choosing price over quality The old adage of what you pay for is what you get could never be truer than when it comes to timber roof construction. Many consumers try to save on the roof construction, and often end up spending more time remedying the resultant consequences that arise from using sub-standard materials and workmanship.

Bear in mind that in order to create a professional and sound end result, you will need to employ the know-how of professional, knowledgeable and experienced individuals, which will no doubt cost more initially than non-qualified individuals off the street, but which will save the consumer a lot of money and stress down the line.

• Choosing the right engineer Use an ECSA registered professional, 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 roof trusses are best Prefabricated 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 ITC-SA has found site-made timber trusses to be more expensive than pre-manufactured timber roof trusses.

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

ITC-SA ACCREDITED FABRICATORS Each and every ITC-SA-accredited fabricator is audited on an annual basis, with regards to 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 requirements.

Pre-fabricated 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

CONCLUSION: • 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 regulations and SANS material and design specifications.

• Research has also confirmed that hand- or site-made timber roof trusses are on average 20% more expensive than pre-manufactured timber roof trusses.

• Guarantee • Pre-fabricated roof trusses come with guarantees in the form of a manufacturing warranty and an engineer’s By using reputable fabricators, such as those registered certificate, which the owner may call upon to have the roof with the ITC-SA, the consumer can immediately have the structure repaired. peace of mind that these companies or individuals are regularly audited and monitored, and that should something • Pre-fabricated roof trusses can only be approved when a go wrong with their workmanship, he or she will have rational design is available confirming that the material and recourse in the form of a manufacturing warranty. Part of truss design meet and/or exceed the SANS requirements. the membership requirements for engineers accredited by the ITC-SA, is that they all carry their own Professional The ITC-SA makes sourcing of reputable roof fabricators, Indemnity insurance cover for any professional negligence erectors, inspectors and engineers easy. All the consumer on their part with regards to the specific structures they needs to do is contact the Institute directly or visit its website, sign-off and take responsibility for. which provides a comprehensive list of all accredited members across the country.

For more information, visit www.itc-sa.org.

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C E M E NT & CO N C R E TE

Concrete Slab Supplies Since its inception in 1994, Concrete Slab Supplies has developed into Gauteng’s foremost manufacturer of premium quality products in the concrete floor and roofing industry.

T

he company is committed to excellence and conducts extensive research into concrete slab technology and manufacturing on a broad scale, for a product offering that serves the residential, commercial and industrial markets.

Concrete Slab Supplies is the only company in South Africa that offers clientele such a diverse range of solutions, from normal rib and hollow block, propless T-beam and block solutions, to a precast FabpanelTM hollow core option. Concrete Slab Supplies also has an in-house installation team that erects slabs should a client or contractor not have the ability to erect themselves.

PRESTRESSED RIB AND HOLLOW BLOCK SYSTEM Our Fabricated Concrete ribs are made in our world class 4 000m² manufacturing facility. Fabricated Concrete ensures that stock levels are adequate so that no matter the size of the contract, we can supply within a matter of days.

Our hollow block factory Dreamcast has 3 VB4 machines and is geared up to manufacture and ensure that Concrete Slab Supplies has the very best product throughout the year.

PRESTRESSED T-BEAM AND N170 PROPLESS SYSTEMS Produced at both Fabricated Concrete and Dreamcast, the system offers an alternative to both the normal rib and block system, as well as the hollow core slabs.

The T-beam system is mainly used on either townhouses or areas where propping is a challenge, either due to constraints or accessibility. The system is limited to a 4 500m span and uses 4.5m³ for every 100m².

FABPANEL HOLLOW CORE PANELS The Fabpanels are also produced at Fabricated Concrete using world class technology imported from Germany.

The FabpanelTM is an extruded hollow core panel that is 1 200mm wide and is mainly used for the townhouse market due to its benefits of construction speed and reduced labour costs.

For more information, visit www.concreteslabs.co.za.

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SO L A R P V

New solar farm at Epsom Downs Shopping Centre eases strain on electricity grid Emira Property Fund has installed a R6 million solar farm on the roof of its Epsom Downs Shopping Centre in Bryanston, Sandton. This is Emira’s first step in adding renewable energy solutions to its quality portfolio of properties across South Africa, and part of its sustainability strategy.

SIGNIFICANT OUTPUT The photovoltaic (PV) solar farm, comprising 1 084 panels, will produce around 271kWp, or about 30% of the electricity required by the shopping centre – the maximum possible with its roof size. Emira’s state-of-the-art pilot project will save 515 172kWh of energy, and some 252 434kgs of coal, each year.

At the same time it will reduce carbon emissions annually by approximately 503 838kgs. To put this in perspective, you would need to plant 458 new trees to offset these emissions.

Now, with Nersa’s approved increase in Eskom’s tariff rate of some 13% this year, the financial viability for solar farms is becoming achievable. We also recognise the strain on South Africa’s electrical supply and the new Epsom Downs solar farm responds to the call for energy users to reduce dependence on the national grid.”

Justin Bowen, Development Manager at Emira, comments: “For some time now, Emira has explored ways in which renewable energy can reduce our carbon footprint.

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Panels were installed on special frames with custom-made brackets that clamp onto the roof sheeting.

PHYSICAL SYSTEM OPERATION The system is made up of three main areas: 1. Solar panels 2. Grid-tied inverters 3. Balance of system (cabling, circuit breakers, etc.)

Using an inverter, grid-tied solar converts direct current (DC) power that gets generated from the solar panels, to alternating current (AC) power then used by the grid. This is the simplest, most effective way to transfer energy and the best return on investment possible.

Grid-tied solar solutions require a live grid to synchronise (connect) to before the inverter can inject power into the building’s power network. This means that, for this type of connection to work, the grid must be live.

If the power goes off, for example during load shedding, the grid-tied solution will not be able to function. The main purpose for this solution is to reduce your power consumption during the day while the sun is shining.

The solar panels convert energy from the sun into electrical energy. The electrical energy produced by the panels is in the form of direct current (DC), whilst most electrical equipment requires alternating current (AC). The inverter is then used to convert the DC from the panels to useable AC. In the event that the system is grid interactive or off grid/standalone, batteries are also included and used to store any excess energy from the panels. Batteries and charge controllers add extra costs (and losses) to the system that increase the payback period.

The figure below outlines a typical system.

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SO L A R P V

SO L A R P V

SYSTEM ADVANTAGES • Most cost-effective solution • Lowest losses • Highest ROI • Automatic connection to the grid, no need to switch anything on the system

SYSTEM DISADVANTAGES • Only generates power while the grid is online

UNIQUE MODEL Emira partnered with BrightBlack to supply and install the system, which was retrofitted to the centre, and its panels were specially imported. Bowen points out: “This is a unique model as far as we are concerned. We have the backing of the banks and we provide our customers with low risk, high return, in our model. We are also willing to back our technology and installations by providing production guarantees in the contract.”

BrightBlack is responsible for the insurance and maintenance of the system for the term of the contract (12 years). Emira, a carbon disclosure company, will easily be able to monitor the success and effectiveness of its pilot PV solar project since its head office is located in the adjacent Epsom Downs Office Park.

the PV modules onto the roof was also a bit of a challenge. We eventually hired a high-lift forklift to speed up the process.”

The roof did not have to undergo any additional stabilisation to accommodate the extra weight of the panels. Bowen confirms that an investigation and calculations were done by an independent structural engineer who deemed the original roof sufficient to support the panels. In addition, the system was designed and spaced to work within the load-bearing capacity of the existing roof, as Bowen explains, “Fortunately the roof of the mall consists mostly of Kliploc 700 sheeting. This is an ideal roof surface to mount PV solar on, as we can use a clamping mechanism to attach our structure instead of needing to screw through the sheeting which could damage the waterproofing. We have our own propriety mounting structure – manufactured from aluminium – which is used to incline the panels in a North-facing direction.”

FAR-REACHING BENEFITS Major drivers for a project like this, Bowen says, include a reduction in the electricity bill and going green. But while the installation was intended to reduce Emira’s carbon footprint, it has also resulted in other far-reaching benefits. “By taking strain off the power grid, Epsom Downs Shopping Centre is doing its bit to prevent load shedding, and we are sure its customers and neighbours appreciate this.”

OUTLOOK OF PV NO MAJOR CHALLENGES The solar farm took only six weeks to construct, but was six months in its planning and logistics stages. Although not the only one of its kind in South Africa, it is one of very few systems of this size. Bowen explains that, thanks to the intensive preinvestigations and design period involved, the installation ran smoothly and no unexpected issues where encountered. “We have learnt from previous jobs to spend our time upfront making sure that the planning and logistics is excellent. A challenge was ensuring that the power supply to shops remained uninterrupted during the tie-in process. To circumvent this, we completed the 380V connections between 11pm and 2am one night so that no one was affected. Getting

APRIL 2015

Bowen believes South Africa could see a greater move towards more on-site renewable energy reduction in the near future.

“The uptake of PV is growing exponentially worldwide. South Africa is lagging behind Europe and America but is slowly gaining traction (largely due to the current Eskom power crisis). The challenges are that the systems are not cheap, and depending on electrical tariff structures, the paybacks range from 6 to 10 years. But I firmly believe that PV is the only real solution to the current energy crises. Decentralised power production that can literally be brought on stream every day to reduce our reliance on the Eskom grid would mean that by the time the new power stations are completed, we could not even need them! We foresee a trend towards renewables growing rapidly over the next few years.”

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L I G HT S TE E L F R A M E

Light steel frame building contractor course in high demand The response of contractors to the light steel frame building (LSFB) training courses presented by the Southern African Light Steel Frame Building Association (SASFA) is testament to the growing popularity of the LSFB method in South Africa. This is according to SASFA director, John Barnard.

The 24m² house that was erected by the students as part of the training course.

“We recently successfully presented our 6-day contractors training course to a full house for the 17th time!” says Barnard.

“The fact is that this course has grown significantly in popularity as an expanding number of building contractors, developers, architects and engineers become increasingly interested in learning about LSFB – because of the demand on them to use the method as a building solution.”

The most recent course had 16 participants bringing to 281 the total number of students who have successfully completed the programme since its inception in 2009.

THE COURSE IS DIVIDED INTO TWO COMPONENTS: • Steel frame components, and erection (4 days), covering introduction, the steel making process, properties of coated steel sheet, foundations, manufacturing of light

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steel frames and trusses, construction tools, wallframe setout, handling, loads, floor framing, wall framing, roof structures, and the installation of services.

• Internal lining, external cladding and insulation (1.5 days), covering the properties, manufacturing and benefits of glasswool insulation, acoustics, energy efficiency, environmental issues, storage and handling of Glasswool, tools and installation methodology. This is followed by a section on gypsum plasterboard covering properties, storage and handling, cutting, tools and application for walls, ceilings and finishing. Finally, fibre cement board for external cladding is addressed, including the installation of the vapour permeable membrane, sizes and availability of fibre cement boards and planks, fixing accessories, installation guidelines, and door and window frame installation detail is presented.

APRIL 2015

Neal Bernhardt from Bosch Power Tools explaining the use of their products on a light steel frame building site.

Students generally come from all over the country for this course and usually have had prior building industry experience.

Barnard made special mention of the SASFA members who give their support to the course. “We could not do this without Lafarge Gypsum, Everite, Saint Gobain, Global Innovative Building Systems, Marshall Hinds, Kare and Simpson Strong-Tie and Bosch Tools. We thank them for their support and time,” concluded Barnard.

SASFA is planning to present the course in Durban in July, and Cape Town in September.

Indicate your interest to attend by e-mail to info@sasfa.co.za.

Willem Venter from Lafarge Gypsum explaining the correct installation of gypsum board.

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Thursoct has grown from strength to strength and will be one of the first organizations in South Africa to manufacture PVC Roof Sheeting and PVC Foam Board locally. Thursoct is a family-grown business and believes in providing the right product at the best price without compromising on quality or integrity.

Our uPVC Roof sheets have an added low gloss coating that greatly enhances the UV absorption of the sheet and increases the scratch and impact resistance, it is ideal for our harsh South African climate, it will not rust or corrode, it is modern and fast becoming the material of choice for manufacturing plants, agricultural buildings and warehouses, as well as decks, patios, car ports, etc. Life cycle cost analyses have proven that PVC roofing systems are among the least costly over time for two major reasons: long service life and energy efficiency. The longer a roof lasts without major problems, the less costly it is on an annual basis. Up to 40% can be saved on energy consumption every year, due to the reflective properties of white PVC roofs. The anti-corrosion performance of PVC roof tiles is suitable for most applications in coastal areas with severe salt fog corrosion, as well as areas with severe air pollution.

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L I G HT S TE E L F R A M E

Barnard says that to ensure that the theoretical concepts are well understood, the course includes a practical component, consisting of setting out of wall frames, squaring, levelling, and erection of walls, erection of roof trusses, installation of plumbing, external cladding (FC boards, OSB and FC planks), insulation and internal lining (gypsum board), and internal joint finishing.

“Finally, it is illustrated how difficult it is to make a hole in 15mm thick gypsum board, and how easy and quick it is to repair,” he says.

C E RTI F I C ATI O N

GreenTag Certification recognised by GBCSA The launch of Global GreenTag South Africa’s formal recognition at a series of CPD and manufacturer seminars was a great success with over 400 people attending the four events.

T

he recognition was by the Green Building Council of South Africa (GBCSA). The Cape Town events were held at the SANRAL Western Region Green Star Building (Winelands Auditorium) and the Johannesburg events at EY’s 102 Rivonia Road, Sandton Green Star Rated Building.

GreenTag was recognised as one of the third party certification schemes able to certify products in GBCSA’s new Interior v1 rating tool. GreenTag can now certify all Furniture, Assemblies, Flooring and Wall Coverings to the appropriate level to allow products to gain credit points in the new rating tool launched in February.

The speakers included Lesley Sibanda from GBCSA, David Baggs, CEO and Program Director of Global GreenTag International Pty Ltd., Marloes Reinink of Solid Green Consulting and Jeremy Sumeray of Armstrong Ceilings, UK. Armstrong Ceilings have the first 8 GreenTag Certified products in South Africa. They are rated to the top Level A. GreenTag was originally launched in Australia and has certified over 900 products in that market. Fortunately hundreds of these products are already available in the South African marketplace and will likely soon be available with GBCSArelevant GreenTag certification.

The Global GreenTag certification program certifies all products in the construction sector and has been operational in South Africa since 2013, with certified products and numerous products under certification and is already transforming the South African marketplace. Four manufacturers that made application to GreenTag during that period have had the applications refused because of unacceptable toxic ingredients. This has prompted three of them to reformulate and resubmit. Only one has decided not to reformulate and has submitted to a local competitor ecolabel.

The GBCSA system was developed to evaluate the environmental performance of major products used in interior fitouts in any building, new or old. Materials calculators allow credit points to be calculated as a result of various criteria including third party certification to a variety of levels A, B or C. Level A attracts 100% of the Green Star Interiors tool credits. Level B equates to 85% and Level C equates to 75%.

GreenTag is the longest established and largest ecolabel program in South Africa and has two related certification programs recognised in combination under GBCSA’s program.

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LCARate is the world’s first program that uses Life Cycle Assessment in the assessment of the products during certification. LCARate also delivers Bronze, Silver, Gold or Platinum ratings, the world’s only ecolabel EcoPOINT score, and summary LCA reports called Environmental Product Declarations – all as part of the certification. The GreenRate program was designed for Green Building Council Materials Calculators and is assessed together with LCARate to Deliver GBCSA level rankings.

According to Grahame Cruickshanks, green building manager for EY’s Climate Change and Sustainability team, “the launch of the new Green Star® Interiors Tool, is likely to stimulate rapid market growth with ratings of both new and existing building fitouts,” adding, “GreenTag is set to be a key tool for the industry to save time and money in achieving Green Star ratings.”

APRIL 2015

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PA I NT S & COATI N G S

SAPMA to build its own training centre in Bedfordview The South African Paint Manufacturing Association (SAPMA) is planning to establish a new permanent facility for its training arm, the SA Paint Industry Training Institute (SAPITI), for which construction will start in the second quarter of 2015.

M

andy Linossi, Training Administrator and Treasurer of the SA Paint Manufacturing Association (SAPMA), says the new training centre will be built on site at 16 Nicol Road, Bedfordview, SAPMA and SAPITI’s current operating base.

“We are planning to open the new SAPITI Training Centre in August this year. The new facility is vitally needed to uplift the skills of the entire coatings sector which SAPITI is already successfully offering. But the time had come for us to move away from the present arrangement where the practical side of the training is offered at the premises of benevolent SAPMA members. The practice of bringing students employed by competitors to rival coatings producers’ and suppliers’ premises is not ideal and we therefore cannot wait for our new, independent Training Centre to be built and opened,” Linossi stated.

Deryck Spence, Executive Director of SAPMA, says SAPMA accreditation from The Quality Council for Trades and Occupations (QCTO), a governmental Quality Council established in 2010 in terms of the Skills Development Act, is pending. The proposed accreditation has been published in the Government Gazette for comment. QCTO’s role is to oversee the design, implementation, assessment and certification of occupational qualifications on the Occupational Qualifications SubFramework (OQSF). “In addition to QCTO accreditation, we now have to strive for similar accreditation for SAPITI so the new Training Centre will be designed and prepared to comply with all the QCTO requirements for accreditation,” Spence explained.

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Mandy Linossi, SAPMA Training Administrator, says a new coatings industry Training Centre will be established in Bedfordview at SAPMA and SAPITI’s current operating base.

APRIL 2015

Spence said that, seeing the paint contracting market was sadly not committed – despite SAPMA providing all that was required to train their staff – in uplifting the skills of the paint applicators they employ, the consumer would in future at least gain some respite by obtaining advice on the correct methods of paint application from qualified retail sales staff. “Perhaps some of these apathetic contractors themselves would in future also be able to learn a fact or two from hardware sales staff,” he dryly observed.

The new SAPITI Training Centre will follow the demise of the SAPMA Centre of Excellence training facility for the coatings industry in Springs which, despite being welcomed as the first industry-dedicated training centre, had to shut doors within two years because of dismal support from the paint industry.

PA I NT S & COATI N G S

The SAPITI Training Centre will offer multi-faceted Coatings Technology practical training in a specially designed laboratory fitted with equipment to match the SAPITI curriculum. The Centre will also house a new SAPITI interactive video conferencing studio to provide coatings training for the retail sector. “This web-based training will enable SAPITI to raise the standard of professionalism, technology and practical knowledge of retail sales and advisory staff to grapple back control of the retail market from mass merchandisers who have commoditised paint in an alarming fashion,” Spence added. “It will also provide the retail market with the training it now urgently needs to comply with Consumer Protection Act legislation.”

SAPITI’s new Training Centre will offer training programmes accredited by the Chemical Industries Education and Training Authority (CHIETA) and endorsed by the Department of Labour as well as the Department of Higher Education and Training, and contain extensive facilities for both theoretical and practical training.

The paint technology modules to be offered at is new ‘inhouse’ training centre will be in line with international standards and encourage the training of a wider spectrum of students to meet the government’s calls for the expansion of skills and job creation. The new Centre – which will have access to the internationally-respected British Coatings Federation (BCF) training modules – will offer technical tuition at advanced levels as well as for non-technical industry staff to improve their knowledge of coatings. BCF training is recognised by the City & Guilds Institute of London Institute which is accepted and respected worldwide.

CALL 0861 727 663 TO BOOK YOUR SA ROOFING ADVERTS FOR 2015

CALL 0861 727 663 TO BOOK YOUR

CLASSIFIED ADVERT

APRIL 2015

49

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ADMIT 1

FREE EXPO VOUCHER

R495 VALUE compliments of: SA Roofing! *VIP CODE: SARVIS01 Register today!

Visit www.construction-week.com

SEE, TOUCH AND EXPLORE

13 – 14 May 2015 | Sandton Convention Centre

the solutions of tomorrow from 220+ exhibitors who will be displaying: • • • • • • • • • • •

Building materials (glass, steel, timber, bricks, concrete) Concrete and cement: Producers, readymix concrete contractors and manufacturers Engineering, procurement and construction companies Formwork and framework specialists Construction tools, equipment and machinery Paint, coatings and chemicals Investors, project finance and finance houses Low cost housing Urban development Bathrooms, kitchens and sanitary ware Housing technologies and approaches

Sponsors and partners

Client: Weza Afrika Capital Date: 22 October 2013 Project: Corporate Brand Assets

EXPO HOURS: Wednesday, 13 May 2015: 11:30 – 18:00

Thursday, 14 May 2015: 10:30 – 16:00

• • • • • • • • • • • • • • • • • •

Road construction technologies and solutions Bitumen and asphalt Physical infrastructure construction Equipment maintenance Public works Contracting services Fire suppression & protection Finishes (gypsum and tiling) Glass and glazing HVAC Insulation and sealants Metal, steel, aluminium Plumbing and water technology Roads Scaffolding Software and IT Construction transport logistics Windows, doors and cladding

PRE-REG IST AND YOU ER CAN WIN AM AZING PRIZES!

This is your one-stop-shop to learn about the latest construction innovations, technologies, drivers and investment opportunities!

Why attend?

• Develop your skills during FREE workshops and training on the exhibition floor • Meet over 220 of the industry’s leading suppliers in just 2 days!

• WIN! Lucky draw prizes to be won Co-located with

PARKING:

ADDRESS:

Parking tickets are available at R35 and can be purchased at the show

161 Maude Street, Sandown 2196 Johannesburg, South Africa Registration and badge collection is on the ground floor – Maude Street entrance

CONSTRUCTION WEEK: 11—15 MAY 2015

REDEEM T

HIS VOUC

HER ONLIN Visit www E: .construct ion-week.c and use th om e *VIP CO DE on the redeem th TOP to is voucher and enjoy free entry

E V E NT S

Global coatings industry authorities to speak at Coatings for Africa 2015 Several world authorities in the coatings industry will present papers at the Coatings for Africa 2015 symposium and trade exhibition at the Sandton Convention Centre from 11-13 May this year.

T

he event – the largest of its kind on the African continent – is being presented by the SA Paint Manufacturing Association (SAPMA) and the Oil and Colour Chemists’ Association (OCCA).

Dr Blade Nzimande, the Minister of Higher Education and Training, will deliver the opening address on May 11, and about a dozen respected leading paint and coatings authorities from overseas countries will deliver important addresses during Coatings for Africa 2015. Included are: • Dr Anthony Gichuchi from ICL Halox in the USA • Manfred Jorma from BASF in the Netherlands • Udo Schonhoff from Elementis Specialities in Germany • Fernando Saez Camps from the Nubiola Group in Spain • Janos Hajas from BYK in Germany • Paul Dietz from FP Pigments Oy in the UK

52

• Marco Heuer from Evonik Hanse in Germany • Graeme Billington from Eastman Company in the UK • Mohammed Sanaobar from Wacker Chemie in the United Arab Emirates • Phil Green from Mirmac Paint Research in the UK A host of top-level South African speakers will also address the symposium including industry analyst Anthony Lawrence of Frost & Sullivan, who will give an overview of the coatings market in Africa.

The symposium, which will be augmented by a large-scaled trade exhibition, runs concurrently with two other industryrelated trade shows at Sandton Convention Centre: African Construction Expo and Totally Concrete Expo. All the events are being organised by Hypenica.

APRIL 2015

FREE EXPO PASS 11 - 13 MAY 2015

If you manufacture, sell, specify or work with paint and coatings in any capacity then this is your show!

Sandton Convention Centre, South Africa

WHy ATTEND? • Develop your skills during FREE workshops and training on the exhibition floor • Meet the entire paint and coatings value chain • WIN! Lucky draw prizes to be won

R495 value compliments of: The South African Paint Manufacturers Association (SAPMA) and the Oil & Colour Chemists’ Association (OCCA) *VIP CODE: SARVT01

SEE, TOUCH AND EXPLORE the solutions of tomorrow Adhesives Binders Chemicals and admixtures Equipment and machinery Formulators of paint and coatings Fillers Ingredients

• • • • • •

Tuesday 12 May 2015 11:00 – 18:00

Wednesday 13 May 2015 10:30 – 16:00

PARKING

from 120+ exhibitors who will be displaying:

• • • • • • •

EXPO HOURS

Packaging Pigments Polymers and resins Raw materials Sealants Solvents

Parking tickets are available at R35 and can be purchased at the show

REDEEM THIS VOUCHER Get your free ticket by visiting www.coatingsforafrica.org.za/ register and use the *VIP CODE on the TOP LEFT to redeem this voucher and enjoy FREE entry

ADDRESS 161 Maude Street, Sandown 2196 Johannesburg, South Africa Registration and badge collection is on the ground floor – Maude Street entrance

Our hosts

Presenting sponsor

Platinum sponsor

meghan.gilson@hypenica.com

Gold sponsors

Silver sponsor

www.coatingsforafrica.org.za

Co-located with

E V E NT S

Date set for 2016 WoodEX for Africa The next WoodEX for Africa will be held at Gallagher Convention Centre in Midrand, South Africa, from 9 to 11 June 2016.

W

oodEX for Africa is Africa's only expo that focuses exclusively on the timber industry and is the perfect platform for woodworking professionals to connect with specialised dealers, to catch up with the latest timber trends, to secure new business contacts and to compare deals.

Held annually since 2012, WoodEX for Africa has enjoyed tremendous support from the local and international timber industry and the event is now established as Africa's leading industry showcase.

Stephan Jooste, Director of WoodEX for Africa, says the organisers are exploring the possibility of partnering with a major international industry exhibition and a decision was made to present WoodEX for Africa biennially from 2016, in order for the event to fit in with the global timber industry calendar. "We would like to thank our loyal supporters for helping us to establish and grow WoodEX for Africa the past three years, and for all the positive comments and advice received through difficult times from our media and industry partners. With this support behind us the future of WoodEX for Africa is looking bright."

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Following WoodEX for Africa 2014, the event received outstanding feedback from its exhibitors and visitors, with exhibitors reporting positive feedback in terms of the quality of visitors, the great networking opportunities, market exposure and business conducted. Visitors indicated that they were specifically impressed with the outstanding quality of the exhibitors' displays and the professional appearance of the event.

"Bookings for exhibition space at WoodEX for Africa 2016 are now open and we invite the industry to book soon to secure the best possible position and to benefit optimally from the event's marketing campaign. We are looking forward to meeting all our industry friends and partners at WoodEX for Africa 2016," says Jooste.

For more information about WoodEX for Africa visit www.woodexforafrica.com or e-mail info@woodexforafrica.com.

APRIL 2015

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AT AFRICA’S ONLY TIMBER MACHINERY, TOOLING, MATERIALS & FITTINGS EXHIBITION Furniture & Kitchen production | Forestry & Sawmilling | Wood Materials, Machinery & Veneers Tools, Loggers & mobile Saws | Timber Construction and supply | Industry Surface & Treatment Technologies Many more Timber related products, machinery and services.

Gallagher Convention Centre | Midrand | South Africa info@woodexforafrica.com | +27 (0) 21 856 4334 www.woodexforafrica.com

COATI N G S & S E A L A NT S

Sika to introduce Global

Reporting Initiative G4 Standard Sika has bundled and consolidated its sustainability activities. The guiding principle, ‘More value, less impact’ sums up the new strategy.

T

he company now measures itself against six defined targets and is one of the first companies in Switzerland to report its performance in accordance with the latest guidelines of the Global Reporting Initiative (GRI G4). The recently published sustainability brochure outlining the campaign provides a comprehensive overview of Sika´s sustainability commitment in the next five years.

Sustainability is a driver of innovation and hence of the business success enjoyed by Sika. The new medium-term sustainability strategy bundles activities and systematically gears them to the following six strategic target indicators: economic performance, sustainable solutions, local communities/society, energy, water/waste and occupational safety. In accordance with the guiding principle of ‘More value, less impact,’ with its products, systems and solutions, Sika strives to create value for all its stakeholders that by far outweigh the impacts associated with production, distribution and use. Specifically, in the next five years the company will measure itself against the following targets: • Economic performance: Operating profit (EBIT) above 10% of net sales • Sustainable solutions: All new product developments assessed, all local key projects implemented • Local communities/society: 5% more projects per year • Energy: 3% less energy consumption per ton and year • Water/Waste: 3% less water consumption and waste per ton and year • Occupational safety: 5% fewer accidents per year

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For buildings as well as for industrial applications, Sika aims to continually enhance durability and improve both energy and material efficiency. The company has been guided by a sustainability mindset from the very outset. The breakthrough was achieved around a century ago with the product Sika-1, which durably sealed the tunnels on the Gotthard rail route against seepage water – an essential requirement for the subsequent electrification of the line.

No company can achieve the goal of sustainable development on its own. That is why Sika actively seeks the involvement of its stakeholders, such as employees, customers, suppliers, shareholders, authorities, governments and associations. In developing its sustainability strategy, Sika consulted stakeholders on what they considered to be the most important sustainability issues. Selection of the strategic sustainability targets is thus based on both an internal and an external perspective.

The revised sustainability strategy was accompanied by a new management and reporting system meeting the G4 Guidelines of the Global Reporting Initiative (GRI G4). This makes Sika one of the first companies in Switzerland to report on its sustainability performance in accordance with this new standard. Compared with earlier versions, GRI G4 aligns sustainability reporting more closely to topics of significance to companies, and factors in the impact of business activities on the entire value chain.

Sika complies with the non-financial reporting standards developed by the Global Reporting Initiative (GRI G4).

APRIL 2015

JCP Roofing is a new business that came into existence through JCP STEEL, a company that has been serving the steel industry with flat steel products for over 22 years, with a reputation for excellent service, uncompromising quality and impressive lead times.

We have expanded our portfolio to supply IBR and corrugated roofing sheets to the same level of quality and service to which our customers are accustomed to.

PRODUCTS: • • • • • •

IBR Corrugated Polycarbonate Sheeting Bullnosing / Cranking Flat Sheets Screws & Fasteners

CONTACT:

Tel: +27 11 814 1898 | Fax: +27 11 814 2166 | Email: ruan@jcproofing.co.za | Web: www.jcproofing.co.za