Risk result
52 / 100
Medium
Key risk factors
Mitigation priorities
Methodology
How overheating risk is screened
This tool uses a weighted risk model inspired by common TM59 and SAP overheating indicators. South and west glazing, large solar gains, weak external shading, upper floors, and loft rooms all push scores upward. Bedrooms are weighted more harshly because night-time overheating matters more.
External shading and purge ventilation measures are prioritised ahead of active cooling because they usually tackle the heat source rather than just the symptom.
Products worth considering
Based on your results, these product categories may be relevant to your next step.
Related guides
Air Conditioning Installation Cost UK
Decide when overheating is serious enough to justify active cooling.
How to Improve Indoor Air Quality
Balance overheating, ventilation, and comfort rather than treating each in isolation.
How to Stop Condensation with Ventilation
Improve summer purge strategies and moisture control together.