BFX+BDX installation set
- Commercial DescriptionThe installation set includes the underfelt collar BFX for a watertight seal between the roof window and the roofing underfelt, and insulation frame (BDX) for a reduction in heat loss and the elimination of cold bridges.
Benefits
A full solution with BFX and BDX for a weatherproof and well-insulated installation
Underfelt collar BFX ensures a perfect fit and watertight seal between the roof window, battens and the roofing underfelt
Insulation collar BDX insulates around the roof window frame, reducing heat loss and eliminating cold bridges