Building Control will require SAP calculations to be carried out if the area of glazing in the extension(s) is greater than 25% of the floor area of the extension(s) and the area of doors & windows that will no longer exist. Using SAP gives you the greatest flexibility as it compares the actual proposal with a 'notional' extension where the area of glazing is no more than 25% and where the thermal elements only meet the minimum standard.
This is more complex than SAP calculations for a new dwelling, but we provide you with everything you need for Building Control and can also advise on additional improvements that can improve the overall energy efficiency.
or call 01439 788 680now
for advice and a fixed price quotation.
Proport Eco-Services Daleside, East End Ampleforth York YO62 4DA
SAP Calculations BREEAM Domestic Refurbishment
Energy Statements Sustainability Statements C-Plan
Water Efficiency Calculations Code for Sustainable Homes Impartial advice
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Proport Eco-Services is a trading name of Proport Services Limited. Company No. 5692020 Registered address: 1 Carnegie Road, Newbury, RG14 5DJ