Meta-analysis of indoor temperatures in new-build housing

Autor: Grainne McGill, Lynette Robertson, Rajat Gupta, Tim Sharpe, Ian Mawditt
Rok vydání: 2016
Předmět:
Zdroj: Building Research & Information. 45:19-39
ISSN: 1466-4321
0961-3218
DOI: 10.1080/09613218.2016.1226610
Popis: Despite growing concerns about overheating, a lack of evidence exists on the scale of the problem, particularly in contemporary UK housing. This paper presents the results of a meta-analysis of indoor temperatures in selected low-energy housing. Temperature data recorded at five-minute intervals in 60 dwellings across 19 demonstration projects (2012–14) were collated and analysed to investigate the prevalence of overheating. Findings evidence high summertime temperatures, with 27% of living rooms exceeding 28°C during August. Based on the Chartered Institution of Building Services Engineers (CIBSE) threshold of 5% annual occupied hours > 25°C, 57% of bedrooms and 75% of living rooms were classified as having overheated. Overall, 30% of living rooms exceeded the adaptive comfort threshold of > 3% occupied hours ΔT ≥ 1 K. The results suggest a fundamental relationship between ventilation and indoor temperatures. The higher minimum and average summertime temperatures observed in mechanical ventilation with heat recovery (MVHR) homes (p
Databáze: OpenAIRE