The breathable membranes/barriers allow the passage of vapours, preventing condensation.
ROOF UNDERLAY
Presentation
They protect the interior of the house by letting out vapours, but not letting water or wind penetrate, also acting as a sub-tile.
They must be used in conjunction with thermal insulation to improve the thermal and waterproofing system.
How it works
A vapour retardant barrier is a material that reduces the rate at which water vapour transfers through a set of materials, such as those that make up a roof or wall. Our membrane allows some moisture transfer from the inside to the outside, increasing the feeling of comfort.
Extra protection
Using our membrane gives your building extra protection.
Greater protection
Protects from water and air (wind) infiltration and offers greater protection against dust ingress.
Avoid moisture and condensation
Regulates the passage of moisture, preventing the formation of condensation
Application precautions
It should have an overlap of 20cm, decreasing according to the pendant.
BT 150
Breathable membrane or vapour barrier. Ideal for insulating roofs and wooden houses.