Thermal Heat Loss / Gain Calculations showing TER v DER
for submission to Local Authority Building Control
by an Accredited Surveyor
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Energy Performance Certificates
Existing Dwellings / Conversions to Dwellings
New Flats in Existing Buildings
'U' Value Calculations and Condensation Risk Analysis
The goverment, on 6th April 2006, rushed through new legislation requiring all new dwellings to comply with the SAP 2006 method of reducing carbon emmissions.
This has resulted in many Local Authorities either invalidating, rejecting or not even registering these projects until such time as the applicant / agent has submitted Standard Assessment Procedure (SAP) calculations showing details of the Target Emission Rate (TER) versus the Dwelling Emmission Rate (DER).
To be comparable for all properties, the SAP rating is adjusted to floor area, so that it is essentially independent of dwelling size. It takes into account the following range of factors, which contribute to energy consumption: