How and where to use guide

VELUX Underfelt Collar 78x140cm BFX MK08 1000 should be used according to the intended application and site requirements. How and where to use: - Prepare surfaces and adjoining assemblies before installation. - Install to manufacturer guidance and relevant site standards. - Check fit, alignment, and finish quality before handover. - Additional context: The VELUX BFX MK08 1000 Underfelt Collar is a 780x1400mm flashing component designed to integrate with compatible VELUX roof window and Sun Tunnel systems. It combines an underfelt collar with transverse drainage gutter to create a weather-tight seal at the...