In Amsterdam is a residential tower with 73 m high, with wood as the main construction material. The Tower gets the label BREEAM Outstanding, the highest possible sustainability score. It is not the first modern wooden building, but rather the highest.
Cross Laminated Timber, cross on each other glued boards, is a word that often comes over in the design of the HAUT, the residential tower planned for construction in the newly developing Amstel in Amsterdam. Starting from the bottom floor, which is of concrete, is the wood used for the construction of both the core as the floors. “The greatest challenge in this high building is the wind load, also because the building has the shape of a sail, ‘ says Bob Janssen, partner of real estate developer Lingotto. ‘ The core and support beams of the apartment block are for that reason overdimensioned. ‘ That thickness is also the fire safety. ‘
The building was designed by architects with Arup construction support Team V. Jackson. ‘
For a wooden building is a square cross-section constructive the simplest. But this building is not square. Especially in the façade, with cantilevered balconies, took care of constructive headaches. ‘
Solar panels in the facade
On the roof and along come the façade integrated solar panels, a total of 1250 m2. The facade is not completely lined with solar panels. ‘ Under the balconies have they no sense, because there is little sun. ‘In addition, it is building a residential tower, ‘so we give maximum space of glass, of course with a high insulation value. Solar protection will probably happen with screens.
The ground floor of the building in the design has a special function. ‘It is a continuation of the public space: there are trees, people can grow vegetables, there is a nursery, wastewater is cleaned with constructed wetlands. There is also room for a terrace and for the organisation of events.’
The use of wood as a construction material, the solar panels, the behandelking of the waste water, wear them all to the building the highest sustainability score gets with the BREEAM Outstanding label.
The building also serves as a living lab for sustainable experiments. ‘On the facade is place to test innovative panels, and the energy company NLE goes experiments with charging cars on solar power and use of electrical share cars. That goes a step further than laboratory experiments: in HAUT you have real users.’
The design is by the municipality of Amsterdam selected from a series of designs. ‘We will now continue with the engineering and expect the second half by 2017 with the building to start. The building stands there than at the end of 2018.’