SAP or Standard Assessment Procedure is required in order to produce a Predicted Energy Assessment and an On Construction Energy Performance Cetificate and to compare the energy and environmental performance of dwellings.
Building regulations requires a SAP and Predicted Energy Performance Certificate to be submitted before the commemcement of any work. It's reconmended that a SAP calculation is carried our early in the design process.
Since SAP calculations are based upon a desktop exercise, and not a site survey, it is critical, that the correct information is submitted, the following is a suggested list of the information sources and data items required.
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