CONSTRUCTION BOARD WITH DEFINED AIR PERMEABILITY

摘要

A construction board comprises a rigid wood-based panel (1) and a paper layer (3) attached to the panel by an adhesive (2) so as to yield a well-defined air permeability and a well-defined water vapor diffusion resistance factor. The wood-based panel may be an OSB panel. Diffusion control is achieved without the necessity to apply metallic or plastic foil layers.