Thermal bypass
Heritage Building Retrofit Toolkit, published by the City of London Corporation in March 2024, defines thermal bypass as: ‘Heat loss that bypasses the thermal insulation layer between two areas of the construction. This is caused by a combination of conductive and radiative heat loss mechanisms which result in uncontrolled air movement.’
See also: Thermal bridge.
[edit] Related articles on Designing Buildings
- Definitions of retrofitting.
- Fabric first.
- Heritage.
- How to deal with retrofit risks.
- LETI publishes Climate Emergency Retrofit Guide.
- National Retrofit Strategy NRS.
- Renovation v refurbishment v retrofit.
- Retrofit.
- Retrofit and traditional approaches to comfort.
- Shallow retrofit.
- Step-by-step retrofit.
- Thermal bridge.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Code of Practice for Electrical Energy Storage Systems.
ECA calls on members to comment on draft 4th edition.
Bringing together expertise and creating cultural benefits.
CIOB celebrates positive Ofsted report.
The Building Safety Regulator announces a call for evidence.
Government approach could undermine delivery and regeneration.
World's first mass timber data centre.
The overlooked environmental aspect of data centre development.
Introduction to radon awareness
New technical information sheet published by CIOB.
Updated supplier guide can help electrical contractors engage with NHP.
CIAT confirm the winners of the 2026 architectural technology awards.
Government launches a one stop shop for flood preparedness.
Sir Edwin Lutyens: Britain's greatest architect? Book review.
CIOB publishes free template to help assess and manage risks.