The SAP calculations / sap calcs / sap rating is carried out at the design stage of the build and the calculation is based on the energy balance taking into account a variety of factors that contribute to energy efficiency, including:
- Materials used for the construction of the dwelling
- Thermal insulation of the building fabric
- Ventilation characteristics of the dwelling
- Efficiency and control of the heating system
- Solar gains through openings of the dwelling
- Fuel used to provide space and water heating
- Renewable energy technologies
Visit the Leema Technologies Ltd website for more information on The SAP Calculations