HTB (physics)
In Physics, HTB is the heat loss due to linear thermal bridging when calculating the energy performance of buildings. It appears in both United Kingdom[1] and Irish[2] methodologies.
Calculation of HTB
[3]
The calculation of the heat loss due to linear thermal bridging is relatively simple, given by the formula below:
where
- y = 0.08 if Accredited Construction details used; y = 0.15 otherwise
- ΣAexp is the sum of all the exposed areas of the building envelope
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1Headquarters and/or registered office in the UK but no applicable energy operations within the country 2Ultimate parent company is not UK-based 3Integrated in the United States, no generation or supply activities in the UK
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