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No. 9

SLIDE Magazine for Architecture, Design, Retailer, Trade

Perspectives A look ahead to the year 2050

The neck pain of the pharaohs Wood as the building material of the future Fold slide advise


Perspectives Bird’s eye view Keeping an overview by creating distance


Perspectives A few weeks ago we visited our subsidiary in the United Arab Emirates. We experienced encounters with interesting people, partners and customers. A visit to the Burj Khalifa was something we certainly did not want to miss out on. One of the reasons being the fact that more than 2,000 sliding hardware systems from Hawa are hard at work in the world’s tallest building. Our visit was well worthwhile. The view from the 124th floor is truly breathtaking. This kind of city view is usually only seen from a plane when taking off or coming in to land. The bird’s eye view of Dubai made us realise once again how inspiring it is to visit the world of our customers where they go about their daily business. To discover aspects of their professional challenges, habits and needs. Knowing the viewpoints of our customers and partners is important to us. After all, they are the ones for whom our sliding hardware systems are intended to open up new prospects.

Topic Aspective: the neck pain of the pharaohs Bird’s eye view: Palm Jumeirah, Dubai Frog’s eye view: Burj Khalifa, Dubai Other views: the year 2050

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Gregor and Heinz Haab Managing Directors Hawa AG Sliding Hardware Systems

Projects German embassy in Dushanbe, Tajikistan Residential house in Nordelta, Argentina Luxury hotel in Da Nang, Vietnam

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Know-how Building material of the future: wood Solutions for sliding and folding/sliding shutters In conversation I: prof. Michael Schumacher, architect In conversation II: Hawa Student Award 2012 Product News Agenda, Personal

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Room Portraits: Untitled (G.S. II), 2006 The cover photo is by Berliner Menno Aden, winner of the European Award of Architectural Photography 2009. He photographs everyday rooms from above, reducing them to two-dimensional models.

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Amazing stories of wood «Wood returns to the inner city.»

Michael Schumacher, architect «Moving façade elements need choreography.»


Fold slide advise Sliding and folding/sliding shutters create style


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The neck pain of the pharaohs Perhaps the old Egyptians suffered from neck pain. Pharaohs and slaves on ancient Egyptian paintings often seem more than a little tense: side views of heads and legs are combined with frontal views of the chest and shoulders. But the secret lies less in regular stretching exercises and more in the eye of the artist. The human eye doesn’t see everything. In fact, it often only sees half. Namely the front side. If the beholder wants to see the reverse side he will need to rotate the object he is viewing. Or change his own position. But then he cannot see the front side. No matter how he twists and turns the object, he will have to put up with just one half. It seems the ancient Egyptian artists were unwilling to accept such an incomplete view. They simply painted the chest and shoulders from one viewpoint and the legs and head from another. The method enabled them to paint the aspects that were important to them. This style of depiction is known as «aspective» art.

The Egyptians were not the only ones. Prehistoric cave dwellers and the icon artists of the Middle Ages often preferred to use the aspective approach. It is even seen in our times, for instance in naïve art or in children’s paintings.

The freedom of artistic expression allows the artist to present his motif from different viewpoints.

There is something else that young children in particular have in common with the ancient Egyptians: they paint the things that are important to them to look bigger. The pharaoh often appears huge in comparison with simple

workers. Egyptologists refer to this subjective choice of proportions as the «perspective of importance». The artists often paint their subjects as separate entities next to each other with no contact to prevent one important motif from overlapping or covering up another. In some cases they even forego a background. These paintings may not have any depth, but the focus remains clearly on the main motif.

Modern adults may perceive «­aspective» art and the «perspective of importance» as distorted and unreal. They are used to the «central perspective» which clearly states that the chin belongs above the chest, not the shoulder. This does not mean the two ancient methods of depiction are wrong, especially as they also represent insights: they demonstrate that there is more than a single viewpoint; that one can form a more comprehensive image of reality by considering every aspect as far as possible. And that it is not prohibited to paint important things big and insignificant things small. Forming a comprehensive view of the things in our lives and weighting them with prudence allows us to make better use of our personal

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Hawa on Palm Jumeirah General contractors KeO international Consultants have installed 1,700 HAWA-Multifold 30 in the houses on Palm Jumeirah. The furniture hardware for freely slideable or side-hinged folding/sliding doors weighing up to 30 kg is designed to make the best possible use of the available cabinet space.

Bird’s eye view

Large appears small Its promoters refer to it as the eighth wonder of the world – the Palm Jumeirah island off the coast of Dubai in the Gulf of Persia. The man-made island was inaugurated on 21 November 2008. Up to 40,000 people worked simultaneously on Palm Jumeirah for seven years, moving millions of cubic metres of sand and stone, expanding Dubai by 560 hectares and adding 6

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just under 100 kilometres to its coastline. Atlantis The Palm, the largest hotel and amusement park, is situated at the crown of the palm-shaped island and comprises 1,500 rooms and 17 restaurants. The «trunk» of the palm is two kilometres in length; its 17 «fronds» accommodate 1,400 villas and houses. A «crescent moon» of some eleven kilometres protects the island from stormy seas. It had

to be opened retrospectively at two locations to allow the flow of the tides to boost the circulation of water between the «fronds». An underwater tunnel connects the «trunk» to the «crescent moon». It is said that Palm Jumeirah is even visible from space on low Earth orbit trajectories. Sufficient distance provides the best overview. And opens up new perspectives.

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Hawa in the Burj Khalifa 2,444 sliding doors and numerous mobile partition walls fitted with Hawa products are in use in the world’s tallest building. Take the Armani Hotel, for example, or the ­Armani Apartments.

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But there is more – a wooden ­sliding door in the ­elevator hall leading to the observation deck on the 124th floor 452 ­metres above sea level glides on HAWA-Junior 250/B hardware.

Frog’s eye view

Large appears enormous Dubai continues to grow. A new city quarter, known as Downtown Dubai, is currently under construction. At its centre stands the Burj Khalifa, 828 metres tall and more than twice the height of the Empire State Building in New York. When the air is clear, the building’s tip can be seen from as far away as 100 kilometres. The diameter of the top eight floors is a mere 120 centimetres. They house the technology and electronics for the building and its antenna. The Burj Khalifa stands on 850 concrete piles, some of which reach as far as 70 metres below sea level. The foundations have the shape of a Y on which the building’s three columns are based. They are joined together at the centre axis to provide reciprocal support. The

hexagonal axis at the centre gives the Burj Khalifa its stability – the top stories sway a mere 1.5 metres in strong desert winds. Construction workers had to pour the concrete mainly at night due to the overwhelming heat of day. The tower nonetheless grew at a rate of one complete storey every four days. The inauguration of the Burj Khalifa in 2010 took place during an economically difficult period. A decline in demand saw the price of apartments in the Burj Khalifa drop by more than 50 per cent after its inauguration in 2010. Trade and tourism have, however, started to rebound since 2011. Anyone standing at the entrance cannot help but gaze upwards and be amazed.

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«Lilypad»: study of an ­autarkic floating city for 50,000 inhabitants with fauna, flora and fresh water sources. By ­Vincent Callebaut Architectures, Paris.

How it could be What prospects does a perspective view of the year 2050 hold? Only one thing is clear: everything will be different. Probably a lot different to what humans might imagine today. The criteria currently seen as key issues are the environment, health, food, urban development, energy and traffic. Although the challenges will be more complex, systems will be more intelligent.

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Me, 2050 Noel Stähli, 16 years old, Hawa AG, Mettmenstetten, trainee industrial clerk

«I think that by 2050 I will be living with my family in a suburb of Zurich. I try to design my life so that my family can be as happy as possible. I want to have a good and interesting job. Until then, the greatest challenge I face is the successful completion of my apprenticeship in 2014. Once I have achieved that, the door to my professional future will be wide open. I look forward to seeing how my life develops in the future, as it will tell me whether I set myself the right goals.»

More than 370,000 new vehicles were registered in Beijing in 2011. The average road speed has fallen from 45 to 10 km/h in just ten years. Roads are often closed and hundreds of flights cancelled on account of the smog. Large cities go hand in hand with large challenges. The steady progress of urban development is unbroken. According to the UNO, the world’s urban population is growing by 200,000 people per day. Predictions forecast that seven out of ten people will live in cities by the year 2050. The «city» as an organism needs to be completely redesigned. Ever-increasing

agglomeration is a huge challenge to traffic managers and city planners. And an opportunity for architects.

Redeveloping buildings Researchers believe that carbon dioxide emissions in the city of Munich could be 90 per cent lower by the year 2058 – with no less quality of life and using technology that already exists today. The costs of around 13 billion Euro would be offset against savings amounting to 30 billion. The redevelopment of buildings and installations is at the top of the list of ­priorities. Energy-plus buildings that feed more energy into the grid than they use

are the current state of the art. Prototypes are already proving their suitability for everyday life. They reduce consumption through highly effective heat-insulating building materials, vacuum-insulated windows and heat ­recovery. They also generate energy through photovoltaic systems and other means. The ­majority of these technologies are based on miniaturisation and compaction.

Grand solutions in miniature The Fraunhofer-Institute for Solar Energy Systems ISE in the south-German city of Freiburg im Breisgau is carefully researching so-called phase change materials: wax-like

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paraffins in capsules absorb large amounts of heat when they melt during the day and release it again at night as they solidify. Ten of these capsules are still thinner than a human hair. A three-centimetre-thick wall made of phase change materials provides the same heat efficiency as a 40-centimetre-thick wall of concrete. Moreover, these capsules can be mixed into plaster, mortar, drywall panels and even integrated in wood. They can be produced on an industrial scale and screwed, nailed or glued into place the same as any other building material.

«Intelligent» buildings Houses, household appliances and tools, clothing, traffic and communication means will probably all be «smart» by the year 2050, equipped with sensor and communication elements as sensory organs running on autarkic energy sources. ­William J. Mitchel, professor of architecture at Massachusetts Institute of Technology in Boston, already refers to the houses and urban developments of the future as as «organisms»: «They are aware of what goes on in the inside and on the outside and react in an intelligent manner». The

climate control systems of the future will be aware of the weather report. Ceilings and walls made of luminescent plastics will light up homes and buildings. Wall-size displays will react to commands based on speech or movement and open up the 3-D world of the Internet. Visits to shopping malls, museums or university lectures on another continent are possible without having to travel at all.

The city of the future In March 2012 the ETH Zürich, the Swiss Federal Institute of Technology, opened a laboratory in Singapore for researching the cities of the future. Here, 120 scientists deal with issues such as traffic, the environment, construction or agriculture – less futuristic than Vincent Callebaut Architectures Paris (see images), but more down to earth. Long-term, sustainable city development should cushion the negative side-effects of urban agglomeration and utilise the opportunities the «city organism» has to offer. Architecture will more than ever before be one of the most important factors for quality of life.

Me, 2050 «Dragonfly»: study of a comprehensively utilised urban farm in the form of a high-rise building.

Malte Kittelmann, 25 years old, Leibniz Universität Hannover, student of architecture

«One goal is to build up my own architect’s firm. How I will live in 2050 depends on my work. I am quite open-minded in this regard. I appreciate the clarity of Swiss architecture, the innovative approach of the Dutch ­and the sensuous use of materials in Scandinavian concepts. Architecture is full of inconceivable potential. Demographic change and new energy concepts will also gain in significance. I am looking forward to the world’s most exciting profession!» 12  slide No. 9

Me, 2050 Andreas Thiele, 24 years old, Daxenberger Schreinerei, Seeon, apprentice cabinet maker

«Bionic Arch»: concept of an ecologically oriented high-rise building for mixed use.

«By the year 2050 I will be 62 years old and hope to be able to live without any financial worries. Who knows whether the standard of living in 2050 will still be as high? Right now I am looking forward to a couple of years in education. I will also study product management and would then like to adopt responsibility in a large company. I could live in any country. Perhaps I won’t have a family at all, but rather the largest circle of friends in the world thanks to my professional career. I will always be able to return from my journeys to my house in the countryside that I have built with my own hands.»

Me, 2050 «Coral Reef»: study of an urban development in an estate of 1,000 prefab passive houses.

Stefani Liebhart, 19 years old, Hawa AG, Mettmenstetten, logistics expert in training

«In the year 2050 I will be living with my family (husband, two or three children and a cat) in a single-family dwelling close to my parents. As head of logistics at Hawa AG, I will be able to enjoy all that life has to offer. Prior to that I would like to get to know other countries as a (top-flight) female footballer, learn other languages and continue to study. My greatest dream is that of health for my loved ones and myself. I look to the future with optimism and enjoy every single day.»­

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Embassy with flair Germany and Tajikistan are very different countries. The German embassy wants to bring them closer together using, among other means, the architecture of its new residence. Different traditions in construction, materials and methods, lingual and cultural differences – orchestrating cooperations between companies from Germany and Tajikistan represented a challenge to general planner and architect André Janka of Berlin. It wasn’t the only one he faced. The construction was to be sustainable and ecologically

compatible; a high level of security was mandatory, as was a stable structural framework to safeguard against potential earthquakes. Cold winters, hot summers and violent sandstorms are all part of the subtropical climate in Tajikistan. Small wonder, then, that the building owners would only consider materials and structural elements of the highest quality. In other words: the best materials with a robust design as a guarantee for a long service life.

in 2009 that ran smoothly. Ten storey-high sliding wood elements with metal frames were fitted to the well-insulated cubic building during the construction phase in 2010. They serve as sunscreens on the balconies and the east-facing terrace. The model used here is the automated sliding hardware system HAWA-Front­slide 60/matic. A touch of a button is all it takes to set it in motion, smoothly and quietly, much in keeping with the discretion one would expect of an embassy.

The first technical trials for the use of sliding shutters took place in 2006 and were followed by a year-long field trial with sample hardware

The quality of the German residence elegantly demonstrates that solid buildings and relationships are here for the duration.

Project: Residence of the German embassy Location: Dushanbe Country: Tajikistan Architect: Architekturbüro André Janka, Berlin Building owner: Bundesamt für Bauwesen und Raumordnung Completion: December 2010 Hawa systems: HAWA-Frontslide 60/matic Intention: Automatic sliding shutters Quantity: 10 Material: Metal frame with wooden lamellas 14  slide No. 9

The impression of mildness is deceptive: the cold winters and summer sandstorms in Tajikistan are a hardness test for the HAWA-Frontslide 60/matic on the façade of the German embassy.

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Loggia with glass A loggia can be just as charming in winter. At least when the winter is mild – ­and the loggia cleverly enclosed in glass. Like the one in Nordelta near Buenos Aires. Nordelta is a «gated community», i.e. a private town, that has been under construction since 1999. 24 residential areas will be grouped around a central lake with a shoreline of some 60 kilometres including its canals. The finished quarter Los Castores II boasts two glass sliding wall installations with an overall length of just under nine metres that have been in use since 2011. The opened elements of the loggia are stacked at an angle of 90° to the sliding axis. The glass front is all the more impressive thanks to the small installation dimensions of the filigree glass suspension and retainer profile. The glass front protects the loggia from the coastal winds and allows its use in the winter months that are usually quite mild here. Although HAWA-Aperto 60/GL is mainly used in indoor solutions, it is also suitable for outdoor designs, such as seen here, thanks to largely corrosion-resistant materials and wind resistance certified in accordance with German standard DIN EN 1932 (class 5). Two other Hawa products are also at work in the single-family dwelling: the glass sliding doors in front of the fridge-freezer glide on ­HAWA-Junior 80/GL, whilst the sliding door between the walk-in wardrobe and bedroom is equipped with a HAWA-Junior 80/GP.

The more discreet the sliding system elements, the larger the glass surface area and the lighter the rooms. Each glass sliding wall is lockable with just one lock.

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Project: Residential house Location: Nordelta, Barrio Los Castores II Country: Argentina Architect: Emilio E. Crosa, Nordelta, Bahia Grande Realization: Open Glass, Buenos Aires Building owner: Private Completion: December 2011 Hawa systems: HAWA-Aperto 60/GL, HAWA-Junior 80/GL, HAWA-Junior 80/GP Intention: Glass sliding walls and doors Quantity: 2 all-glass sliding wall installations, 3 all-glass sliding doors Material: Glass

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Villas with sea views The InterContinental Danang Sun Peninsula Resort outside the city of Da Nang on the Son Tra peninsula was opened in the summer of 2012. The luxurious building is nestled in a peaceful bay overlooking the South China Sea. Recent years have seen Vietnam continue its development into an important touristic destination. Hotel complexes are under ­construction in numerous coastal regions. The InterContinental Danang Sun Peninsula Resort has a clear focus on well-being, style and quality. The complex offers 197 villas, suites and rooms, none of them with fewer than 70 square metres. Whilst some guests are immediately transfixed by the deep blue colour of the sea, others first notice the striking black and white design of the interior. The building’s architecture is inspired by the construction methods used in the Vietnamese highlands, where wood plays a pivotal role. Only top-quality and largely corrosion-resistant materials are good enough for buildings situated directly next to the sea. As a reputable hardware retailer, Hawa’s sales partner Häfele recommended hardware made by Hawa to the architects at Bensley Design Studios for their sliding solutions. The designers made use of various sliding hardware systems, including many members of the HAWA-Junior family alongside HAWA-Concepta 25, 50 and HAWA-Telescopic 80/2 and 80/3, in numerous villas, suites and public hotel areas. And so traditional Vietnamese elements in wood glide on modern Swiss sliding hardware technology. A beautiful combination.

Room architecture and furnishings ­inspired by Vietnam’s traditional construction method.

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Project: InterContinental Danang Sun Peninsula Resort Location: Bai Bac, Son Tra, Da Nang Country: Vietnam Architect: Bensley Design Studios, Bangkok Completion: June 2012 Hawa systems: HAWA-Junior 40/Z, 80/Z, 120/B, 160/B HAWA-Concepta 25, 50 HAWA-Telescopic 80/2, 80/3 Intention: Sliding and pivot/slide-in doors as well as telescopic sliding doors Material: Wood

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Building material of the future Wood is on the advance. This is due in part to new technologies, materials and applications. And the insight that wood as a building material not only improves the climate of rooms but also that of the planet.

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28.5 metres tall, 150 metres long and 70 metres wide: the «Metropol Parasol» on Plaza de la Encarnación in the Spanish city of Seville is currently the world’s largest wood structure.

The art of wood construction has not been bypassed by the digital age. The main characteristic is «information» – for people, machines, robots and their control programmes. Electronic control systems and new parameterisable design tools are making it possible to abandon the restraints of serial production. More customised products and smaller series have become economically feasible. And each new application option contributes towards the advancement of wood as a high-tech material. The pavilion in Norway’s Dovrefjell National Park is a prime example of new possibilities. It protects the visitors who come to watch reindeer and musk oxen from the elements. Architects Snøhetta of Oslo designed a model on the computer and transferred the digital data to milling machines. The machines carved the building blocks for the seating arena from 25 centimetre thick scantling. Shipbuilders then sanded the elements and joined them together using dowels. The wood on the inside was oiled in the traditional way, whilst the external elements of the wood structure were coated in tar gained from pine trees.

that can be transported as units is an exception to this rule. Nonetheless, virtually every large-scale timber building is a prototype. The high degree of pre-processing in modern timber construction has always been a key factor of its economic efficiency. Up until now pre-processing and standardisation went hand in hand. The degree of standardisation, however, is nowadays less significant thanks to modern technology. The economic efficiency of a construction project now depends much more on how well materials and elements can be combined.

Wood is moving to the city Densely populated urban areas leave little room for new buildings. The only remaining options are to utilise the remaining space and to redensify quarters and buildings by adding further storeys and extensions or plugging gaps between buildings. Wood is light and is therefore suitable for adding storeys and developing the space beneath roofs. All the more so considering that construction work in the midst of existing buildings should cause little disturbance and be completed as soon as possible. Wood is unbeatable in this regard.

The timber skeleton for Europe’s tallest solid wood building, the nine-storey Murray Grove Tower in London, was completed in just 27 days – by four carpenters.

Wood is energy A tree produces oxygen by means of solar energy. It simultaneously extracts carbon dioxide from the air and stores it in the form of carbon compounds. This makes wood a renewable, climate-neutral energy carrier. It has the highest energy efficiency of all building materials in the product circuit. Fittingly, wood is being used increasingly more often to increase the energy efficiency of existing buildings, for instance in the form of highly insulating, prefab wood panel elements. The dimensions of the existing building are measured exactly; the new jacket made of wood elements is made to measure like a tailored suit and delivered to the site ready for assembly.

Back to nature with the help of technology When it is in its original form as a tree, wood surpasses by far the subsequent technicalsynthetic qualities of timber. Wood construc-

Every construction is a prototype Wood is more suitable for pre-processing than any other construction material, an advantage that is exploited in particular when building single-family dwellings. It is rarely used to produce multi-storey buildings in series, although the production of room cells

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tion engineers and architects face the challenge of creating wooden structures as sophisticated as a tree. «Bionics» is the name given to the science of researching natural systems and seeking out structures and methods in nature in order to transfer their strengths to buildings. It is no coincidence that a natural approach to building is seen increasingly more often in the dynamic shapes of modern timber constructions. The «Metropol Parasol» in Seville is designed to emulate trees or mushrooms. It was created by Berlin architect Jürgen Mayer H. Around 3,400 veneered laminated wood elements made from Finnish spruce were manufactured in Germany. A CNC-controlled joinery machine cut each element with millimetre precision whilst milling grooves and cavities.

Only the 65 to 70 centimetres deep longitudinal drill holes for the threaded bolts had to be made by hand. Once in Seville the elements were arranged on the ground, provisionally connected and then raised. Final adjustments were made at the point of installation, where the connections were fully tightened to create a single supporting structure. The final touch was to apply a waterproof yet diffusion permeable coat of cream-coloured polyurethane. The «Metropol Parasol» is considered as an ingenious architectural exclamation mark that clearly underscores the possibilities of modern timber construction. However, it is not the only structure to show that modern timber construction has only just begun.

«Wood returns to the city.» «The greatest advantage of wood as a building material lies in its versatility», says swiss timber expert Hermann Blumer. The wood construction industry will be able to better play this trump card in the future thanks to the continuous development of interesting application options. Which properties of wood will gain in significance?

Hermann Blumer Born 1943, carpenter and graduate engineer eTH/siA, started work at his parents’ carpentry business in eastern switzerland 1971. Over the years he developed the BsB system, lignatur ceiling and roof elements as well as high-frequency bonding. in 2003 he founded Création Holz GmbH, a consultancy company for holistic structural engineering. Blumer is internationally active as a project developer, project manager and consultant. 22

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The great advantage of wood lies in its versatility. When put to optimum use, it can be used for support, insulation, cladding, storage, and even to convey scents and sounds… Wood is also very easy to process. That applies to both solid wood applications and to building with wood-based materials. The most significant property of wood is therefore its multi-functionality in a broad range of technical, ecological and emotional spectrum of applications.

What developments will we see in wood construction over the coming decades? Wood construction is returning to the city. It will be used more frequently, mainly for residential and commercial buildings, but also for public construction projects.

Why? The appeal lies in a desire to reduce carbon dioxide emissions. Wood could become the building material of social reason. There will be scrambles to secure dwindling resources, whilst wood as a renewable and sustainable raw material will always be available if managed well.

so why has wood played second fiddle for so many decades in urban construction? The main obstacles were fire prevention regulations and a poor image with regard to sound insulation and heat storage. However, good developments have been made in the meantime; communicating recent insights to a broader audience is proving successful.

But wood does have some disadvantages in comparison to other materials?

Modern manufacturing methods in combination with centuries-old knowledge of regional craftsmanship can be seen at the visitors’ pavilion in Norway’s Dovrefjell National Park.

Of course. Wood has its own natural strengths and weaknesses. But we are currently observing the rapid development of new applications. Timber construction is increasingly perceived as equal to bricks and mortar or steel. Wood will occupy niches in organic architecture. It will become the preferred choice wherever it comes into contact with people and where emission-free, haptic construction is in demand.

plant that can provide energy for the mobility of its inhabitants. The house of tomorrow will have intelligent control systems that detect the needs of its inhabitants. There will be a greater sense of well-being in the timber house of the future. Intelligent hybrid designs incorporating wood/concrete, wood/glass and wood/metal combinations will breathe life into the i­nternal and external appearance of a house.

How will a carpentry company of today with 20 employees be different in 25 years’ time?

What are your favourite types of wood?

There will be a further drift from manual work to mental work. Machines and robots will take over processing tasks with high output, outstanding precision and flexibility. Employees will feed the machines with data. Thus, carpenters will be involved more in the planning process. They will be the interface between man and machine.

«Wood could ­become the building material of social reason.» Hermann Blumer, Création Holz GmbH

My affiliation for the chestnut goes beyond the connection in the Celtic tree calendar; I am fascinated by its wildness and the robustness of its wood as a building material. I am also very fond of the spruce. Its wood has ­enabled me to progress with my product ­development – and to develop further as a person.

What will the house of tomorrow look like? It will be largely independent of external energy sources, if not completely self-sufficient. In an ideal scenario it will work as a small power

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Marcadet residential complex, Paris, France

Residential house L, Nuremberg, Germany

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HAWA-Frontfold 20 The robust and long-lasting folding/sliding hardware for shutters made of wood or aluminium up to 20 kg. The system is conceivably simple: fold the shutters, slide to one side and park them at an angle of 90° to the window front. Thanks to an unlimited odd or even number of shutters, HAWAFrontfold 20 is especially suitable for shading windows with a large glass surface area that offer only little parking space for opened shutters. An even number is, however, recommended.

Fold slide advise Window surface areas are increasing, parking space for shutters is decreasing, façade designs are becoming more ambitious. These are three reasons why folding/sliding shutters are up and coming. Their versatility accommodates so many areas of use that architects and processors welcome the technical advice provided by Hawa’s experts.

The future belongs to low energy buildings and passive houses. Modern designs incorporating folding/sliding shutters determine the style of more than just the façade. As dynamic components, they lend a building more than one face and therefore influence the visual impression to a much greater extent than roller shutters. To building owners and architects, they represent not only sun screens and weather protection but also stylistic elements of design. And that applies to large residential developments and single-family dwellings alike. The extensive Hawa range offers the right solution for many construction projects. Architects and processors use the HAWAProductfinder at to determine which standard solution best suits their particular need. Architects designing ambitious large-scale projects often contact Hawa early on in the planning phase, whilst processors working on smaller buildings might not get in touch until shortly prior to installation.

Bottom guide tracks – a practical example of advice The use of HAWA-Frontslide 60/matic was planned for the Hotel Valbella inn. A standard solution was not possible due to the specific façade design and the higher weight of the very large shutters. Hawa developed a corresponding recommendation for the wood construction specialists for on-site implementation. The solution: guide rollers running in a guide channel open on the bottom side, with adaptations to the trolleys and control system that allow the shutters to be opened and closed more slowly.

«We have the right know-how and experience when it comes to choosing, combining and installing elements in dependence on the initial situation«, says Sepp Stehli, head of the Technical Support team at Hawa AG. According to him, no two façades are exactly the same. Customised solutions with Hawa products that can be installed by the processor are therefore in high demand. Sepp Stehli recommends speaking with a technical consultant at Hawa AG early on in these cases. «If we have a sketch of the situation we can assess the initial position and come up with the best recommendations, supplemented with a parts list where required.» Previously, sliding and folding/sliding shutters were seen mainly in German-speaking regions. Hawa’s consultants, however, have for quite some time noticed a steady rise in the number of enquiries from Italy, France, Scandinavia and other regions. Sliding and folding/sliding shutters from Hawa are en route to international discovery.

«The right solution for every customer – that is our aim.» sepp stehli, Head of Technical support, Hawa AG

HAWA-Frontslide 60 The versatile HAWA-Frontslide 60 sliding hardware system moves shutters made of wood, metal or plastic weighing up to 60 kg. Three automatic and three manual designs are available for each of the materials. The classic hardware moves the entire element. The symmetrical design moves the left and right panel simultaneously, whilst the telescopic model parks two to four panels in front of each other with space-saving elegance. HAWAFrontslide 60/B is recommended for low installation heights as it does not need a front cover.

Hotel Valbella inn, Valbella-lenzerheide, switzerland slide No. 9



«Moving façade elements need a choreography.» Prof. Michael Schumacher from Frankfurt on the Main concerns himself more than most architects with the moving elements of a building. As a professor he sensitises his students for the subject.

Buildings are immobile by definition. This did not prevent you as an architect from publishing a book titled «move». A contradiction, perhaps? No; I am often faced by the moving elements of a building. These are predominantly elements of importance to energy-saving or multi-purpose room utilisation. I’m thinking of windows, doors, sliding and swinging shutters or screening elements, but also of large roofs over stadiums.

«move» implies that you find movement particularly fascinating. The subject does indeed have its very own poetry. Function-related movements on a façade can be beautiful or ugly, depending on the design solution for the necessary elements.

Not every architect seems to feel at home with the subject. You, on the other hand, ­embrace it with open arms.

Michael Schumacher …  

… has run the architects’ office of schneider+schumacher with its head office in Frankfurt on the Main together with Till Schneider since 1988. schneider+schumacher is mainly active in Germany and Austria, but also builds in Switzerland, France, China and Russia. Schumacher has lectured as a ­professor of building construction and design at Leibniz Universität in Hanover since 2007. 26  slide No. 9

Planning these elements is no easy task and one that architects are not used to. One usually has a certain amount of leeway during the design process. Moving elements, on the other hand, have a clearly defined function that does not permit any deviations. Our office has adopted a more intensive approach to moving elements than others have, and we have developed a certain affinity towards them as a result. Our aim is to assign an aesthetic and architectural significance to the moving elements required for functional or technical reasons.

Is that why you set up your own in-house kinetics department?

There are countless motors, hinges, switches, sensors and safety regulations; it is impossible to know them all. ­Architects think more in shapes, colours and structures, less in the dimensions of mechanical engineering. But that is precisely what movement forces us to do, and that is why we need specialists. Hence the establishment of our own kinetics department. Our goal is to develop our own specialists over time who, on the one hand, command the architectural aspects and, on the other, understand the design aspects of moving façade elements; they will be able to act as an interface between architecture and façade manufacturer.

Understanding technical solutions is one side of the coin. How do you cope with the architectural challenge? What we need is a choreography for moving elements that takes every conceivable situation into consideration. Sun and shade, for instance, or day and night. Although it is complex, it is precisely where the appeal lies for me.

Are there any examples from your work where this is particularly applicable? One of the most interesting examples is our competition project for a hotel tower on the Iranian island of Kish in the Persian Gulf. In this project the moving parts in the façade are an integral component and have a number of functions: they produce electricity through solar power, they change the look of the building throughout the course of the day, provide protection from very changeable climatic condi-

Striking design by schneider+schumacher: Blossom Hotel Kish ­Island in Iran. The façade is reminiscent of Arabian ornaments. The solar panels in the shape of prisms are intended to protect from the sun and provide energy.

tions, and represent a modern interpretation of objects familiar from Arabian culture.

There are also many moving parts on the ­inside. Are they the solution to changing ­demands on utilisation?

In other projects, such as for Credit Suisse in Frankfurt, you suggested sliding shutters. What tipped the scales in that direction?

Sliding and folding walls, for example, offer some interesting options. I’m thinking of halls that can grow or shrink in size. Although I consider the use of moving walls as a tightrope walk.

Sliding shutters were the most practical, expedient and quite simply the most beautiful solution for these projects. Designing a simple yet visually appealing screening element was a key feature of the Credit Suisse project.

How should we understand that? The easiest way is a comparison with ­­fami-

liar multi-function tools. They can take on ­numerous tasks but do not handle them all perfectly. It’s the same with buildings. S ­ liding solutions should not be ends in ­themselves but should rather have a specific function. That is where the architect needs to find the balance. Moreover, flexibility d ­ epends not only on movable walls but also on the building’s basic structure. But apart from the challenges, there is something m ­ agical about sliding and m ­ oving structural elements that is hard to i­gnore.

As a professor you like to ask your students to ­design moving façade solutions. What advice do you give them for the task in hand? The objective of the seminars is for the students to develop a feeling for moving elements in the façade. One the hand they should research all the clever things that are achievable with moving façade elements; on the other hand, they need to learn how to discipline and control the movements. For instance, I will ask the students to find a solution to shading a window. However, apart from looking interesting on the computer screen, their ideas really need to function well from a technical viewpoint on the models we build. Some of the ideas are very pretty, but not necessarily suitable for practical implementation.

T­ he office building «T8» in Frankfurt on the Main designed for Credit Suisse. Two slim, open high-rise slices with gastronomy, shops and conference rooms on the ground floor. The interior zone of the solidlooking base construction has green terraces beneath a glass roof. slide Nr. 9  27


A meeting of winners Spirits were particularly high among the winners of the Hawa Student Award 2012 and the 150 guests and experts present at the award ceremony at the ETH Zürich on 1 March 2012.

Award winner David Eickhorst talks with Ulrich Kraus of Hawa AG.

Around 150 interested parties made their way to the ETH Zürich. The exhibition gave rise to many a discussion on the subject of sliding.

78 projects on the subject of «Living in Urban Niches» had been submitted. The project «FREIRAUM» submitted by student of architecture Maximilian Illing was the winning entry, whilst seven other projects were honoured by the jury ex aequo. The award ceremony also provided the framework for the private viewing at ETH Zürich where

28  slide No. 9

the projects went on exhibition. The exhibition moved on to Leibniz Universität in Hanover in April; it was also well received at the Staatliche Universität der Bilden­ den Künste in Stuttgart in July.

Award-winning young talent: Gregor ­Haab, Managing Director of Hawa AG, presents the certificate to Malte Kloes for his project «Enfilade».

«The variety of ideas was impressive and exciting.» Beatrice Pia Schmidt, raum+entfaltung

Details of the competition and the projects (in German and French only) can be found at the topical website

Winner of the Hawa ­Student Award 2012: ­Maximilian Illing, student of architecture at the Staatliche Akademie der Bildenden Künste in Stuttgart.

Naghmeh Haijbeik, Claudia Falconí of the project «MOVE_ein balkon zur stadt».

Elisabeth Tress-Rehbein: «The clever solutions are inspiring – the event fantastic.»

Heinz Haab welcomes guests.

Anke Deutschenbaur, member of the jury and Head of Slide Studio at Hawa AG, presents the eight awardwinning projects.

«These budding architects have made creative use of the potential modern sliding solutions have to offer.» Heinz Haab, Managing Director, Hawa AG The award winners: Julia Naumann and Max Wasserkampf; Valentin Lang and Simon Schoch; Benjamin Minder and Michael Fehlmann; Marc Frochaux (stairs, f.l.t.r.); Malte Kittelmann, Naghmeh Hajibeik and Claudia Falconí; Maximilian Illing; David Eickhorst and Sven ­Petersen; Malte Kloes (floor, f.l.t.r.).

slide No. 9  29


Product News

HAWA-Variotec 150/GV

Range adjustments

Stick-on gliding elements

HAWA-Variofold/Centerfold 80/H

New glass suspension and retainer profile

… whilst stock last

Quieter sliding

New stainless steel hinge

Changing requirements of architects and tradesmen sometimes call for new functions. Hawa will therefore replace three sliding hardware systems in the near future and recommends the use of new products.

Hawa makes sliding more quiet wherever possible.

Hawa will replace the hinge (article number 19598) on large, flushfitting folding walls and accordion partitions in October 2012.

A lightly rounded profile was to date available for the HAWA-­ Variotec 150/GV hardware system for all-glass sliding walls. An unadorned straight profile has recently been added to the product range. Its areas of use are as manifold as those of the rounded profile: • Straight and curved installations • Directional changes • Sliding swing doors and sliding pivot doors • LSG 10 mm /12 mm /12.7 mm • TSG 2 x 5 mm + film 0.76 / 1.52 mm • TSG 2 x 6 mm + film 0.38 / 0.76 mm • Integration of locks, centering assembly, etc. The outer dimensions of the

current and new profiles are identical; the new straight profile is also available in plain anodised or untreated pending surface treatment.

30  slide No. 9

Available whilst stocks last, but definitely until end 2012:

Quieter sliding is now possible for all-glass sliding doors, in particular for satined all-glass sliding doors with thicknesses from 8 to 13 mm equipped with rattle-proof floor guides in matt chromium plated and stainless steel effect.

• HAWA-Fiero 25/30 Replacement: HAWA-Concepta 25/30/50

From 2013, all rattle-proof floor guides with plastic spring elements will be equipped free of

As per usual until end 2012, then whilst stocks last until end 2013: • HAWA-Normafit 40/70 Replaced by: HAWA-Junior 40-80/B, HAWA-Junior 40-80/Z • HAWA-210 50-70/VF Replacement: HAWA-Antea 50-80/VF

The HAWA-Productfinder at will lead architects and tradesmen to the ideal Hawa product for every application.

charge with additional adhesive gliding elements. The change applies to the following products: • HAWA-Puro 100-150 • HAWA-Purolino 80 • HAWA-Junior 40-160/GP • HAWA-Junior 40-80/GL • HAWA-Junior 80-250/G • HAWA-Junior 40-80/GS • HAWA-Symmetric 80/G • HAWA-Super 250/G • HAWA-Ordena 70/P

The new heavy load bearing hinge and the 8 fixing screws (article number 23271) are made of stainless steel in WNR 1.4401/AISI 316 quality. The milled sections for the hinge wings will remain exactly the same whilst the price will drop by around 10%. The hinge with heavy load bearings is suitable for applications with HAWA-Variofold 80/H and HAWA-Centerfold 80/H for doors weighing up to 80 kg. It makes partition walls with widths of up to 6 metres or even 12 metres with opposing systems possible; only two hinges are required for doors up to 2,500 mm in height and only three for doors up to 3,500 mm thanks to the high load-bearing capacity.



Architect@Work 12 National tradeshow for architecture, construction and interior finishing

12. – 13.9.2012 Hawa

Ahoy Rotterdam, Netherlands Stand 135

Prowood 12 Tradeshow for the wood-processing industry

21. – 25.10.2012 Hawa

Flanders Expo, Gent, Belgium Hall 4, Stand 4408

Artibat 12 Construction tradeshow for west France

24. – 26.10.2012 Hawa

Parc des expositions de Rennes/Airport, France Hall 9, Stand A24

Architect@Work 12 National tradeshow for architecture, construction and interior finishing

7. – 8.11.2012 Hawa

Stuttgart, Germany Stand 118

Bau 13 International construction tradeshow for materials and systems for architects, designers, construction engineers, general contractors, tradesmen and builders’ merchants

14. – 19.1.2013 Hawa

Neue Messe Munich, Germany Hall C4, Stand 310

Hans-Jörg seidenbusch... … has provided trade partners and architects in Southern Germany and South Tyrol with advice on project implementation since mid2011. The engineer from Austria is father to three children. His credo is: «Good teams share the same spirit that drives each individual and the company forwards.»

BWs 13 Tradeshow for production equipment, wood processing, metal goods, tools, locks and fittings.

10. – 13.4.2013

Messezentrum Salzburg, Austria

legal notice Magazine for Architecture, Design, Retail, Trade slide, No. 9, september 2012, is published twice per year Published by/Copyright Hawa AG Sliding Hardware Systems, 8932 Mettmenstetten, Switzerland,, subject to modification Project responsibility Rolf Arnold, Anke Deutschenbaur, Doris Hug Concept/editing/ design Basel West Unternehmenskommunikation AG, 4012 Basle, Switzerland; Editor: Willi Näf, Reto Westermann; Design: Thomas Aerni, Frédéric Giger; Lithography: Vanessa Tozzo Printed by Engelberger Druck AG, 6370 Stans, Switzerland languages/Circulation German 5,500, French 2,250, English 4,250 Picture credits Page 1: Menno Aden; Page 2: Frédéric Giger; Pages 2, 6, 7: Jörg Vietze; Pages 3, 20, 21: David Franck; Pages 3, 24: Mila Hacke, Berlin; Page 3, 26: Christian Breitler; Page 4: Sandro Vannini/Corbis/Specter; Pages 8, 9: Carsten Dauer; Pages 10–13: Vincent Callebaut Architectures SARL, Paris; Pages 14, 15: Photographer: Torsten Seidel, Berlin; Copyright: Bundesamt für Bauwesen und Raumordnung, Bonn; Pages 16, 17: evfp, Eugenio Valentini; Pages 18, 19: IHG Asia; Page 22, 23:; Page 24: A.S.T. Alu-System-Technik GmbH, Nenzing; Page 25: Valbella Inn AG,; Page 27: schneider+schumacher Planungsgesellschaft mbH, Frankfurt on the Main; Pages 28, 29: Axel Linge; Page 30 Marc Eggimann Article No. 22044

Patrick C. lilienthal... … has headed International Project Business since April 2012. The family man from Muri brings with him a wealth of international project management and sales experience. As an amateur fisherman and hunter, he likes to seek out interesting buildings to make them even more interesting by adding Hawa products.

slide No. 9


Hawa sliding hardware: open for individual design ideas.

Your creative designs have to take customer specifications and spatial circumstances into consideration. Hawa has for many decades developed highly adaptable hardware systems and solutions made specifically to accommodate your ideas whilst leaving you as much room for manoeuvre as possible. That is why it is always a good idea to make the Hawa website at your first stop for sliding, folding, stacking, opening and closing solutions for walls, doors, windows and shutters. Hawa AG, CH-8932 Mettmenstetten, Switzerland, Tel. +41 44 767 91 91, Fax +41 44 767 91 78,

SLIDE No. 9 - Hawa magazine in English  

Hawa magazine for architecture, design, retail and trade