SAP Energy: Domestic Energy Assessors and
Energy Performance Certificates (EPC)

The Standard Assessment Procedure for Energy Rating of Dwellings (SAP) came into force in April 2006

It applies to all new dwellings in the UK - Part L (England and Wales), Section 6 (Scotland) and Part F (Northern Ireland)

The Standard Assessment Procedure is the Government approved method for calculating energy and Carbon dioxide (CO2) emissions for new build dwellings.

The SAP calculation is used to generate the Energy Performance Certificate (EPC) required for each new dwelling. Blue Tree Acoustics can issue EPCs

SAP is used to demonstrate compliance with Building Regulations Approved Document L. This is done by comparing the designed Dwelling Emission Rate (DER) with a SAP calculated Target Emission Rate

The current SAP method is SAP 2005, this came into force in April 2006. It is required by the Building Regulations Approved Document L.

Before SAP 2005 there were three methods of demonstrating compliance: Elemental; Target; and the Carbon Index method using SAP 2001.

SAP 2005 sets emissions targets which are 20% lower than the previous SAP (SAP 2001). Compliance is therefore more difficult to achieve.

We are chartered engineers and accredited domestic energy assessors. We will provide all you need in order to ensure that your development complies with Approved Document L.

We will assess your development, provide advice with regard to construction materials and methods, and ultimately, provide a report for submission to Building Control.

Our Design and Advice will usually consider the following aspects:

- U-Value calculations of all the building fabric such as walls, floors, roofs, glazing

- Insulation materials, systems and thicknesses of materials in order to comply and meet Target CO2 Emissions

- Summer Overheating

- Efficient heating systems and boilers as certified by SEDBUK (Seasonal Efficiency of Domestic Boilers in the UK)

- Systems to provide efficient water heating and space heating or to improve efficiency

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