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Certificate 22/6247 Permavent Limited. Permavent breather membranes. For use in timber-frame, steel-frame, SIP panel and masonry constructions. Product sheet 3
Publication Year
2022
Document Status
Current
Abstract
Relates to flexible three-layer flexible polypropylene sheet materials for use in external walls of timber-frame, steel-frame, SIP Panel and masonry constructions with a cavity and a masonry outer leaf, weatherboarding or tile/slate cladding. Key factors assessed were weathertightness, condensation, strength, properties in relation to fire, and durability.
Document History
Date of first issue: 8th September 2022.
Publisher Information
British Board of Agrément
The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.
Bucknalls Lane
Watford
BBA
UK
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