Underfelt collar BFX is a pleated collar made of diffusion open material that together with the supplied drainage gutter ensures a tight connection to the underfelt.
Benefits
Ensures a tight connection to the underfelt
Easily fitted
Fits together with the supplied drainage gutter
Installation Guide Asset
Assets: 1
BFX
LINK
EPD Assets
Assets: 1
EPD BFX Under roof felt
LINK
CAD drawing
Assets: 1
CAD Drawing
LINK
CE Marking Asset URL
Assets: 1
https://resources.velux.ie/ce-marking
LINK
Size Chart
Assets: 1
Poster with VELUX roof windows (product size chart) Standard roof windows and Special function roof windows