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Certificate 21/5977 Rotho Blass. Rotho breathable membranes. Traspir 95 breathable membrane for use in warm non-ventilated and cold ventilated roofs. Product sheet 1
Publication Year
2021
Document Status
Current
Abstract
Relates a flexible three-layer polypropylene sheet for use as a tile underlay in warm non-ventilated and cold ventilated pitched roof systems. Key factors assessed were weathertightness, condensation, wind loading, strength, properties in relation to fire and durability.
Document History
First issue, dated 23rd November 2021.
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.
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BBA
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