Construction calculator

Site Works Building Heating Load Calculator

Average envelope U-value (W/m²K)Building envelope area (m²)Design temperature difference (K)Ventilation heat loss (W)

Heating load (W): -

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Calculation explained

How this result was calculated

The formula, your substituted values, and the evaluated result are shown below.

Formula: uValue * envelopeArea * temperatureDifference + ventilationLoss. Keep every input in the stated units. This result is a quantity-planning estimate; verify site measurements, waste factors, product yields, supplier data, applicable codes, and professional design requirements before construction.

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How the Site Works Building Heating Load Calculator works

Calculate building heating load for a site works construction scenario using clearly labelled project inputs.

Formula

uValue * envelopeArea * temperatureDifference + ventilationLoss

Planning guidance

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