Reusable facade insulation system
Thanks to its innovative hook-and-loop technology, the recyclable facade insulation system StoSystain R can be dismantled and divided into more or less individual parts, most of which can then be reused. Render carrier boards made from recycled glass are fixed in place with high-quality hook-and-loop fasteners on top of any type of insulant and are then coated with individual rendered surfaces.
Facades provide a house with weather protection and also serve as its “business card”. Alongside these functions, they also have an important role to play in terms of a building’s energy efficiency. In future, the aim is for facades to be as reusable as possible, as EU requirements stipulate that 70 per cent of all building materials will have to be recyclable in a few years’ time.
With this in mind, a joint research project by the Institute of Architecture Technology at Graz University of Technology and the research department at Sto aimed to develop a largely reusable or, if possible, completely recyclable facade insulation system. In 2015, after four years of research and development and four different patent applications, the partners presented the study “facade4zeroWaste”. The researchers’ vision was to develop an insulation system which uses elements with hook-and-loop fasteners instead of adhesive to join the main load-bearing components of the facade system together. This simplifies installation and disassembly, and also ensures that once a facade reaches the end of its life, the individual components can easily be separated from each other, without creating lots of noise and dust, and can be fed into the circular economy.
This product study alone raised great expectations and was awarded the European “Construction Material Recycling Award 2015”, as well as being selected as one of the top 10 in the “Construction & Living” category at the 2016 GreenTec Awards. It laid the foundation for the highly innovative facade insulation system StoSystain R, which will undergo field tests in various pilot projects on real construction sites in Germany and Austria in 2017. This tests will give the recyclable facade insulation system StoSystain R the opportunity to demonstrate not only its benefits in terms of sustainability, but also special features such as the “free choice of insulant to suit customer requirements” and its suitability in the field of (temporary) historical building protection.
|A carrier board made from recycled glass is fixed in place with a hook-and-loop fastener on top of any type of insulant and is then rendered seamlessly.
Image: Sto SE & Co. KGaA
|High-quality mushroom hook-and-loop fastening technology for increased reliability and durability.
Image: STEP-ANI-MOTION, Cologne
|The fastening elements (anchors) feature a surface made from mushroom-shaped hooks which join with the loop material on the rear side of the render carrier boards to form a force-transmitting but reversible connection.
Image: Sto SE & Co. KGaA
Publication free of charge, specimen copy requested