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Energy & Insulation

SAP Rating

The Standard Assessment Procedure (SAP) is the government-approved methodology for assessing the energy performance of dwellings. SAP is used to produce Energy Performance Certificates (EPCs) and to demonstrate compliance with Building Regulations Part L. A higher SAP score indicates a more energy-efficient home. Extensions and changes to heating systems require an updated SAP calculation.

Related terms

EPC (Energy Performance Certificate)U-Value
RSJ / Steel BeamSash Window Repair

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