Assessing the effects of thermal bridging at junctions and around openings
Assessing the effects of thermal bridging at junctions and around openings (IP 1/06) was written by T I Ward and published by BRE in March 2006.
This 6-page paper gives guidance on assessing the effects of thermal bridging at junctions and around openings in the external elements of buildings and how to assess their effect on heat loss or heat gain. It enables estimation of these heat transfers for building regulations compliance calculations. It supports the building regulations for the conservation of fuel and power in all three jurisdictions within the UK. The guidance is primarily intended for junction and opening details that are not as recommended in 'Accredited construction details' or MCRMA/EPIC guidance.
It is a revision of IP17/01 which has been withdrawn.
The contents of the paper are:
- Introduction.
- Building Regulations.
- Numerical modelling.
- Limiting the risk of surface condensation or mould growth.
- Assessing thermal performance.
- References.
[edit] Related articles on Designing Buildings Wiki
- Accredited construction details ACDs.
- BRE articles.
- Building Research Establishment.
- Conventions for calculating linear thermal transmittance and temperature factors.
- Emission rates in the building regulations.
- Reducing thermal bridging at junctions when designing and installing solid wall insulation FB 61.
- Thermal bridge.
- Thermal imaging to improve energy efficiency in building design.
- Thermographic survey.
- U-values.
Featured articles and news
There are plenty of sources with the potential to be redeveloped.
Change of use legislation breaths new life into buildings
A run down on Class MA of the General Permitted Development Order.
Solar generation in the historic environment
Success requires understanding each site in detail.
Level 6 Design, Construction and Management BSc
CIOB launches first-ever degree programme to develop the next generation of construction leaders.
Open for business as of April, with its 2026 prospectus and new pipeline of housing schemes.
The operational value of workforce health
Keeping projects moving. Incorporating unplanned absence and the importance of health, in operations.
A carbon case for indigenous slate
UK slate can offer clear embodied carbon advantages.
Costs and insolvencies mount for SMEs, despite growth
Construction sector under insolvency and wage bill pressure in part linked to National Insurance, says report.
The place for vitrified clay pipes in modern infrastructure
Why vitrified clay pipes are reclaiming their role in built projects.
Research by construction PR consultancy LMC published.
Roles and responsibilities of domestic clients
ACA Safety in Construction guide for domestic clients.
Fire door compliance in UK commercial buildings
Architect and manufacturer gives their low down.

















