Walki®Wall Film

This LCA covers the vapour control layers (VCL) and wind barriers (WB) based on polymer films manufactured by Walki Group Oy factory in Duffel, Belgium. 

The vapour control layers are used to increase the insulation capacity and enable faster dehydration. A well-functioning vapour control layer protects the property and significantly extends the life of the structure and allows you to economize energy efficiently and at the same time increase thermal insulation as it limits the amount of convection in the underlying insulation. 

Walki®Wall Film 90 and Walki®Wall Film 125 are polymer film based VCLs. They are age-resistant and manufactured with polyethylene (PE) film laminated to PP reinforcement scrim with polyethylene (PE) polymer. 

Film based wind barriers are used for the protection of facades against wind, rain and moisture. They are applied in case of facade insulation systems. Perforated structure ensures very good diffusion-open properties that allow moisture and vapour to migrate out of the façade system.  

Walki®Wall Film 90P and Walki®Wall Film 125P are perforated film based wind barriers. They are age-resistant ae manufactured with polyethylene (PE) film laminated to PP reinforcement scrim with polyethylene (PE) polymer. Structure is perforated. 

These products are manufactured with coextrusion coating. 

This EPD is of multiple products, based on a representative product.

Walki®Wall Film 125 has been chosen as the representative product analysed in this EPD as it is most sold product configuration of this product family.