Fixing and buying guide

Use this buying guide for VELUX Underfelt Collar 78x140cm BFX MK08 1000 before ordering. What to check before buying: - Confirm dimensions and compatibility with adjoining components. - Verify fixings, adhesives, and accessories required for installation. - Match quantity to project area and allow for cuts/wastage. - Product overview: VELUX Underfelt Collar 78x140cm BFX MK08 1000 – weather-tight flashing collar with transverse drainage gutter for compatible roof windows and Sun Tunnels. Professional finish, new build and refurbishment.