The vertical extension unit LVI is used in combination with a lining LSB/LSC/LSD for combinations of a roof window above a vertical window element VFA/VFB/VFE or VIU in a vertical wall.
Benefits
Quickly and seamlessly connect the roof window to the interior finish
Made from PVC material that delivers 100% protection from moisture for a durable, maintenance-free finish
VELUX linings include BBX vapour barrier for an airtight seal
Installation Guide Asset
Assets: 1
Installation instructions for lining LVI
LINK
EPD Assets
Assets: 1
EPD VELUX lining LSB
LINK
CAD drawing
Assets: 1
CAD Drawing
LINK
CE Marking Asset URL
Assets: 1
https://resources.velux.ie/ce-marking
LINK
Size Chart
Assets: 1
Poster with VELUX roof windows (product size chart) Standard roof windows and Special function roof windows