Velux Roof Window (with BBX) LSC 2000

The flashing ensures proper roof window installation, air circulation, and maximum air infiltration into the room. The kit includes a vapor barrier BBX, which provides 100% vapor insulation. VELUX vapor barrier BBX ensures high-quality window flashing vapor insulation and prevents condensation from entering the roof structure. This product is single-piece and fits the window size, making it easy and quick to install in its designated place.