Walki®Wall Sd

This LCA covers the vapour control layers (VCL) manufactured by Walki Group Oy factories in Finland and 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 but still has the opportunity to dry out in both directions.

The vapour control layers are made of a cloth of polypropylene (PP) and polyethylene (PE) and/or ethylene butyl acrylate copolymers (EBA) coating that is heat resistant. Reinforced vapour control layers have additionally polypropylene (PP) scrim.

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

Walki®Wall SD5 PRO has been chosen as the representative product analysed in this EPD as it is most sold product configuration of this product family.

The following products were not yet on the market at the moment of publication of the EPD: Walki®Wall SD5 101, WALKI®WALL SD5 PRO 105, WALKI®WALL SD20 101 and WALKI®WALL SD20 PRO 111. For these products, the results of this EPD shall be used with care as the LCI data is not yet based on 1 year of production which may result in increased uncertainty.