Waterproofing BFX 0K14 1000T for roof light tunnel

Waterproofing BFX 0K14 1000T for light tunnel on the roof of the VELUX brand. It consists of 2 components: vapor barrier + drainage gutter. Serves to drain water from the roof.
With the help of the VELUX light tunnel it is possible to get natural light even in the darkest corners of your home such as corridors, interiors and bathrooms, even on gloomy winter days. Sunlight and moonlight could illuminate a room up to 6 meters from the roof.