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The thermal characteristics of roofs: policy, installation and performance

Elwell, CA; Robertson, H; Wingfield, J; Biddulph, P; Gori, V; (2017) The thermal characteristics of roofs: policy, installation and performance. Energy Procedia , 132 pp. 454-459. 10.1016/j.egypro.2017.09.664. Green open access

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Abstract

This paper investigates the in-situ performance of UK cold pitched roof structures through a case study dwelling of typical construction using site survey, and estimation of U-values through simple calculation and from measured heat flow data. Significant increases of U-values resulted from under- and un-insulated areas due to installation issues, whilst a higher than expected estimated thermal resistance of the roof space and structure was also noted, potentially associated with heat gains. Both issues are expected to be observed more widely in the stock and contribute to a performance gap for roof insulation.

Type: Article
Title: The thermal characteristics of roofs: policy, installation and performance
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.egypro.2017.09.664
Publisher version: http://doi.org/10.1016/j.egypro.2017.09.664
Language: English
Additional information: Copyright © 2017 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of the organizing committee of the 11th Nordic Symposium on Building Physics
Keywords: U-value, Thermal resistance, Roof, Performance gap, In-situ
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/10026150
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