BFX underfelt collar

Commercial Description
BFX underfelt collar closes the gap between the roof window and underfelt in the roof construction thereby creating a watertight seal between the roof window, battens and the roofing underfelt. It is made of diffusion open material and is easy to fit.

Benefits

Ensures a perfect fit and watertight seal between the roof window, battens and the roofing underfelt

Easy to fit. Simply place on top of the roof window and unfold

The drainage gutter is included in the BFX. This leads the water away from the head of the roof window if there is a leak above

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