by T I Ward (07-Mar-2006)
This 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 the overall heat loss (or heat gain). It enables a satisfactory estimate of these heat transfers to be made for the purposes of carrying out 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. This paper is a revision of IP17/01 which is now withdrawn. 6 pages.
Contents:
Introduction
Building Regulations
Numerical modelling
- Calculating the temperature factor
- Calculating thermal transmittance
- Numerical modelling of details around openings
Limiting the risk of surface condensation or mould growth
- Avoiding mould growth in buildings
- Limiting the risk of surface condensation in buildings
Assessing thermal performance
- Compliance with building regulations for dwellings
- Compliance with the Building Regulations for buildings that are not dwellings
- Default values of thermal transmittance for generic junction types
References
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T I Ward
07-Mar-2006
1-86081-904-4
Information paper 1/06, IP1/06, IP17/01, Building Regulations, heat loss, calculations, thermal performance, cold junctions, thermal bridges, thermal transmittance.
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