Engineered materials

Vapour Barriers

- and vapor control layers for safety and healthy indoor environment
Walki’s range of building products tackles two increasingly important issues: energy saving and healthy, sustainable buildings. Proper insulation is crucial, however, it must be accompanied by moisture control to avoid decay and mold. Walki's vapour control systems include moisture barriers as well as breathable membranes. Our reflective products offer a clear path to effective insulation and our fire resistant membranes offer in addition fire safety to the building.

 Walki®Active Walki®Active is a vapour variable membrane with a dual purpose. In the winter our product acts as a vapour barrier, ensuring that no vapour gets inside the structure. In the summer the membrane allows water vapour to flow through the structure, releasing the extra moisture. Walki®Wall Tight FR A2 Walki®Wall Tight FR A2 is a water vapour barrier layer for ceilings and inner surface of outer walls, made of a very strong Glass Fiber reinforcement, an aluminium layer bonded with a Fire Retardant glue. This product is suitable for the most demanding constructions such as high rise and public buidings as it can resist temperatures of up to 100°C and could deliver reaction to fire Euroclass A2-s1, d0. Walki®Wall Film Walki®Wall Film provides excellent protection against air and moisture flow to prevent condensation and mould growth inside the wall structure. The transparent structure allows to check what is behind the membrane. Walki®Wall Film Reflex Walki®Wall Film provides excellent protection against air and moisture flow to prevent condensation and mould growth inside the wall structure. The reflective surface allows to improve heat reflection and contribute to global energy saving. Walki®Wall SD Walki®Wall Sd and Walki®Wall Sd Pro are vapour control layers designed to direct water vapour flows according to the requirements from different countries. The Sd range varies from 2m to 100m, and can be reinforced in case blown-in insulation is required.