Prefabricated exterior walls and roofs based on timber frame construction merge insulation and load-bearing functions within one single structural element.
 
Installation of Vario® Xtra XL
Installation of Vario® Xtra XL
Installation of Vario® Xtra XL

Although the airtight layer is already installed on site, junctions between components and connections with the building foundation have to be carefully made airtight. The airtightness of such junctions is generally made using membranes and tapes on the heated side of wall and roof construction.
 

Overview of solutions for prefabricated timber frame walls and roofs

Finland
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