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SAP calculations for a loft dormer conversion, insulation has already been installed 150mm celotex on 50% of the roof and 100mm celotex on the other 50% The sap calculations have to be compliant with current British building regulations.
Sap calculations for a loft dormer conversion proving that the insulation I have installed is compliant with current British building regulations (Budget: £250 - £750 GBP, Jobs: SAP, SAP Hybris)
Sap calculations for a loft dormer conversion proving that the insulation I have installed is compliant with current British building regulations (Budget: £250 - £750 GBP, Jobs: SAP, SAP Hybris)