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Title: Level external thresholds: reducing moisture penetration and thermal bridging

Ref Code: GG47
Authors: C Stirling

Abstract1: Level thresholds, where the internal and external walking surfaces are level, or almost level, are increasingly being specified to give access to the elderly and disabled. Level thresholds present a potential weakness in the weatherproofing resistance of door openings which may let water in. There is also a risk of thermal bridging at the threshold. This Good Building Guide describes some of the technical risks associated with the design of level thresholds and some detailing solutions.



Year Published: 2001

ISBN: 978-1-86081-488-4


Pages: 8


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