Vapour barrier with 3 layers. Made by 2 layers of polypropylene spunbond nonwoven with special coating and 1 vapour barrier. Roll of 1,50 x 50m. Single packed in cellophane tape
Used to reduce the vapour passage to an optimal level, while avoiding any potential humidity and condensation damage and guarantees the insulation efficient. It protects against infiltration of water, air and wind.