Document Status
Current
Supplement
Core Supplement
Series
Certificate
Abstract
Relates to a low-emissivity, insulating breather membrane for external walls in timber-frame constructions. Key factors assessed were weathertightness, thermal insulation, condensation risk, strength, properties in relation to fire and durability.
History
Eighth issue, dated 2nd March 2021.
Supersedes the seventh issue, dated 8th June 2018, amended February 2019.
Originally certificated on 27th September 2004.
Subjects
-
Materials
-
Building papers/vapour control layers
-
General purpose sheets
Publisher History
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.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation
For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products.
We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.
