Heat loss due to linear thermal bridging

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In physics, H_TB 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 H_TB[edit]

[3]

The calculation of the heat loss due to linear thermal bridging is relatively simple, given by the formula below:

H_TB = y \sum A_{exp}

In the formula, y = 0.08 if Accredited Construction details used, and y = 0.15 otherwise, and \sum A_{exp} is the sum of all the exposed areas of the building envelope,

References[edit]