VELUX underfelt collar and transverse drainage gutter, 55x118. Ensures 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 construction. Made from diffusion open material to minimise risk of condensation. Comes with transverse drainage gutter to lead water away from the head of the window if a tile or slate is damaged above the roof window. Welded corners ensure a watertight and simple installation.
| Unit Width of Piece (mm) | 550 mm | Unit Height of Piece (mm) | 1178 mm |
|---|---|---|---|
| Hazardous Material (Y/N) | No | Unit Weight of Piece (Kg) | 1.4410kg |
| Roof Pitch | 15-90 Degrees |
