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

Overheating in low-energy homes: causes, impacts, and assessment challenges
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.
XmaUVWZNlz_22_01_2025_144653.pdf
English (5.51 MB - PDF)