Manufacturer page.

Insulated installation frame BGX consists of four bars of Purenit® sandwich foam, joined to form a frame in which a roof window can be installed. Insulated installation frame BGX is especially designed for installation in warm roof constructions with solid insulation. BGX fits counter battens and battens with a thickness of 40 mm and 30 mm respectively. BGX ensures that the window is fastened securely to the roof construction, provides optimum insulation and also wind and watertight connection. Insulated installation frame BGX is available for single roof windows only, but by adding extension bars BGX WK--, the installation frame can be used when installing additional elements GIL/GIU (WK34) and VELUX CABRIO® roof balcony GDL (WK19) as well. Installation angle The insulation product can be installed within the roof pitch from 15° to 90°. For the placing on the market of the product in the European Union/European Free Trade Association (EU/EFTA) (with the exception of Switzerland) Regulation (EU) No. 305/2011 (CPR) applies. The product needs a declaration of performance taking into consideration EN 13165:2012+A1:2015, Thermal insulation products for buildings and the CE-marking.