VELUX BFX 1000 Underfelt Collar Size (w x h):FK06 (66 x 118 cm) Klober Profile-Line® Tile Vent for

Klober Profile-Line® Tile Vent for 15" x 9" Tiles

Including underfloor heating systems

Size: FK08 - 66 x 140 cm

if purchased as an add-on

VELUX BFX 1000 Underfelt Collar Size (w x h):FK06 (66 x 118 cm) Klober Profile-Line® Tile Vent forDescription: The VELUX BFX underfelt collar includes a transverse drainage gutter 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 corners. The transverse drainage gutter included also prevents any water ingress around the roof opening caused by missing