Vapor Barriers and Wall Design

Wade Engineering > air/vapour barrier > Vapor Barriers and Wall Design

Good design and practice involve controlling the wetting of building assemblies from both the exterior and interior and different climates require different approaches. Ideally, building assemblies would always be built with dry materials under dry conditions, and would never get wet from imperfect design, poor workmanship or occupants. Unfortunately, these conditions do not exist. Good design and practice involve controlling the wetting of building assemblies from both the exterior and interior. They also involve the drying of building assemblies should they become wet during service or as a result of building with wet materials or under wet conditions.

 

https://buildingscience.com/documents/reports/rr-0410-vapor-barriers-and-wall-design/view