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Technical Standard L2. Measuring air permeability in the envelopes of non-simple buildings - fan pressurisation method. September 2021 issue

Publication Year

2021

Document Status

Current

Abstract

Technical standard for the airtightness testing of buildings with a gross envelope volume of more than 4000 cubic meters.

Document History

Issue 2, September 2021. Supersedes the October 2010 edition.

Publisher Information

Air Tightness Testing and Measurement Association

The Air Tightness Testing and Measurement Association (ATTMA) is a professional association, formed in 2002, to promote technical excellence and commercial effectiveness in air tightness testing and air leakage measurement applications. It is also a Department for Communities and Local Government (DCLG)-appointed operator of a Competent Persons Scheme for air-tightness testing.

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