Velux Underfelt Collar BFX1000 MK08 78 x 140cm double-seal-roofing it complements a variety of

it complements a variety of exterior décors

Manufactured from high-quality Material for its good strength in Gold and Matt Black finish

Pressure: 3

making it an ideal choice for both traditional and modern homes

What is wood fibre insulation

Velux Underfelt Collar BFX1000 MK08 78 x 140cm double-seal-roofing it complements a variety ofhe 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