Velux Window Vapour Barrier BBX MK04 78 x 98cm Category_Default Category/Tools/Hand Tools/Plumbing Tools the versatile design of the

the versatile design of the Havel Lever / Round Rose Handle Pack allows it to be fitted to various door types

With a decade-long guarantee on the window and a three-year guarantee on the electric components

Last a lifetime

The requirement for a vapor barrier depends on the specifics of your construction and local building codes

The rapid interlocking mechanism reduces installation time significantly compared to traditional gutter systems

Velux Window Vapour Barrier BBX MK04 78 x 98cm Category_Default Category/Tools/Hand Tools/Plumbing Tools the versatile design of theThis Velux vapour barrier prevents warm air from entering your roof space. This creates an air tight seal preventing condensation build up. It's easy to install. Also the Velux vapour barrier forms an air tight seal preventing heat loss. Technical details Material: polyethylene Material thickness: 0. 15 mm SD value (water vapour diffusion resistance): 40 m Tape: 60 mm