Manufacturer page.

The VELUX BDX insulation collar is a product for sale in the European market. The Insulation collar is for insulation and closure of gaps between the window and roof. The insulation collars consist of mainly steel and plastics. The calculations are based on the BDX insulation collar. 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 DIN EN 16069:2012+A1:2015 Thermal insulation products for buildings – Factory made products of polyethylene foam (PEF) – Specification. For the application and use, the respective national provisions apply.