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Overheating in low-energy homes: causes, impacts, and assessment challenges

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Publication
United Kingdom

Overheating in low-energy homes: causes, impacts, and assessment challenges

28 January 2025
This study highlights overheating issues in low-energy homes in England, caused by design flaws in ventilation, solar control, and architecture, with current assessment methods failing to fully address these challenges, especially for vulnerable occupants.
Editorial Team

This study, titled 'Case study investigation of overheating in low-energy homes: insights from a post-occupancy evaluation in England', examines overheating in low-energy homes, focusing on four houses in England—three newly built and one retrofitted

Over 11 months, environmental monitoring and occupant feedback revealed that overheating was driven by poor ventilation design (mechanical and natural), insufficient solar control (low-performance G-values), and unique architectural features like roof pods and sunspaces

Adaptive behaviours by occupants mitigated but did not prevent overheating in three homes. 

CIBSE's Technical Memorandum 59 effectively identified overheating issues aligned with occupant experiences, while England’s Building Regulations Part O failed to address risks from deep retrofits, architectural features, or vulnerable occupants, highlighting gaps in current assessment methodologies.

16/12/2024

XmaUVWZNlz_22_01_2025_144653.pdf

English (5.51 MB - PDF)
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Linda Toledo, Andrew Wright, Paul Cropper