Installation Products Home / Installation Products / VELUX - BFX CK04 1000 - VELUX underfelt collar and transverse drainage gutter, 55x98 VELUX - BFX CK04 1000 - VELUX underfelt collar and transverse drainage gutter, 55x98 VELUX - BFX CK04 1000 - VELUX underfelt collar and transverse drainage gutter, 55x98 £22.00 Information Specifications Felt collar and drainage gutter,55x98VELUX underfelt collar and transverse drainage gutter, 55x98Ensures a weathertight seal between the roof window and the roof Pleated material ensures a flexible and tight seal to the underfelt of the roof, whatever its constructionMade from diffusion open material to minimise risk of condensationComes with transverse drainage gutter to lead water away from the head of the window if a tile or slate is damaged above the roof windowWelded corners ensure a watertight and simple installationExternal Finish: Internal Finish: Guarantee: 10 yearsSize (cm): 55x98Click Here for Technical Data SheetClick Here for Installation Instructions Brand: VELUX
