VELUX BFX SK08 1000 underfelt collar - 114x140cm Category_Default Category/Fixings/Nails and in multi-storey applications up

and in multi-storey applications up to 25m in height

The VELUX EBL UK04 0021B Twin Combination Slate Flashing 134x98cm - 18mm Gap Is available to order online at BSO

while the integral gutter system manages water efficiently without additional components

flat-paneled look

Rockwool RWA45 insulation features:

VELUX BFX SK08 1000 underfelt collar - 114x140cm Category_Default Category/Fixings/Nails and in multi-storey applications uphe BFX Underfelt Collar ensures a fast connection between the VELUX Roof Window and the roofing felt membrane. It helps to protect against drafts and wind driven rain and snow around the window installation. It comes as one piece making fitting easy, especially around the window corners. The transverse drainage gutter included also prevents any water ingress around the roof opening caused by missing or broken slates or tiles above the window. Product