Technical Note 117 Breather membranes and vapour control layers in walls
Publication Year
2026
Document Status
Current
Abstract
Guidance on the use of vapour control layers (VCLs) and breather membranes in back walls and built-up elements of curtain walling.
Publisher Information
Centre for Window and Cladding Technology
Founded in 1989, the Centre for Window and Cladding Technology publishes research, hosts conferences, conducts training and represents clients, architects, contractors and manufacturers from across the industry.
