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Does compulsory airtightness testing result in airtight buildings or creative ways of passing the test?

Love, JA; Wingfield, J; Elwell, C; (2018) Does compulsory airtightness testing result in airtight buildings or creative ways of passing the test? In: Proceedings of CIBSE Technical Symposium 2018: Stretching the Envelope. CIBSE: London, UK. Green open access

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Abstract

The ATTMA airtightness testing competent person scheme collects pressure test data from the majority of new build dwellings in the UK. A dataset of around 150,000 dwellings is available for analysis and shows surprising results. Measured airtightness for the first recorded test per dwelling is disproportionately concentrated at sharp peaks related to design targets. This is contrary to the skewed normal distribution expected from a process of building, testing, remedial works to seal the primary air barrier and retesting, and indicates that short term measures are being undertaken to pass the test that may not ultimately result in airtight buildings. We reflect on the purpose of airtightness targets and suggest ways in which the regulatory environment could encourage good design and consistent quality of construction.

Type: Proceedings paper
Title: Does compulsory airtightness testing result in airtight buildings or creative ways of passing the test?
Event: CIBSE Technical Symposium 2018: Stretching the Envelope
Location: London South Bank University
Dates: 12 April 2018 - 13 April 2018
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.cibse.org/knowledge/knowledge-items/de...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: ATTMA, airtightness, testing, building regulations, data
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10052361
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