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Produce a SAP calculation for your home extension for BC


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5 days
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What you get with this Hourlie

Where the amount of glazing appears to exceed 25% of the equivalent floor area (minus any glazing now lost due to being covered by the new extensions), we can provide a SAP calculation to show that the dwelling (as designed) is no less compliant than a notional compliant dwelling.
This is done by a more...