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SAP Calculations

Block Energy Services operate throughout the UK on an ethical basis, drawing on our consultants’ many years of experience to get the best results for your design.

If required, we will advise on the best construction to suit your requirements. Whether you are undertaking a new build or requiring calculations for an existing build our professional consultants are only a call away.

For further information contact us using our online form or telephone 01698 824333

A SAP (Standard Assessment Procedure) is a number of calculations, including heat loss through walls, floors, roofs, heating and hot water, lighting etc, works out how energy efficient a dwelling is, showing a scale of 1 to 100 – from poor to excellent.

It is used to demonstrate compliance with Building Regulations Approved Document L1A by comparing the designed Dwelling Emission Rate (DER) with a SAP calculated Target Emission Rate (TER).

SAP 2005 works on a comparison basis that your house design was built to the 2002 Building Regulations, it will now from 2006 and onward, have to be 20% more efficient. So, for example, if the house cost £100 per year to run in 2002, in 2006 onward it will only cost £80 per year to run.

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