Air and vapour barriers
The Complete Guide to Smart Vapor Barriers and Vapor Open Membranes to Help Keep Walls Dry
...vapor diffusion (moisture passing through walls), and air leakage. Understanding the distinction between the two ways moisture moves through a wall - diffusion and air leakage - is the foundation of high-performance design.
Understanding vapor diffusion versus air leakage
Vapor diffusion is the slow movement of water m...
