Velux Underfelt Collar BFX1000 UK04 134 x 98cm Category_Default Category/Outdoor & Garden/Garden Tools/Garden Machinery/Grass Trimmers & Brushcutters The material meets EN 13859-1

The material meets EN 13859-1 for pitched roofing and EN 13859-2 for walls

-    Enjoy panoramic views - While increasing your energy efficiency and natural ventilation

It is easy to install and long-lasting so does not require constant replacement

the door effortlessly complements a wide range of interior décors

and Mint paving slabs in your next landscaping project to bring your outdoor space to life

Velux Underfelt Collar BFX1000 UK04 134 x 98cm Category_Default Category/Outdoor & Garden/Garden Tools/Garden Machinery/Grass Trimmers & Brushcutters The material meets EN 13859-1he 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