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SAP Calculations

L1 Testing are registered SAP Assessors with STROMA.

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SAP stands for ‘Standard Assessment Procedure’. They are designed to measure the energy performance of all new dwellings, conversions and extensions. 

You need Sap Calculations to make sure your building complies with Part L of the Building Regulations

What are SAP Calculations?

Introduced by the government in 1995, these laws are concerned with the conservation of fuel and power.

It is recommended that you get your SAP calculations as early in your project as possible, so if your building should fail, our team can give you advise you on how to improve.

SAP’s are usually completed in 4 different stages:

  • Design – Draft
  • Design – Final
  • Built – Draft
  • Built – Final

Each stage will be explained to you in depth by one of our experts. We understand that you have deadlines and are to help the entire way.

How can I achieve a good SAP Score?

A SAP calculation indicates a score from 1 to 100+ for the annual energy cost based on:

  • The elements of structure.
  • The heating and hot water system.
  • The internal lighting
  • The renewable technologies used in the home.

The higher the score the lower the running costs, with 100 representing zero energy cost. Dwellings with a rating in excess of 100 are net exporters of energy.

Having a good SAP rating can also positively affect your chances of passing Air Pressure Tests on the property. Targets are usually higher and have more margin for error than a property with a poor SAP rating.

We can help!

We will guide you through the entire process. Free advice and support is included in our service to make sure that your project passes.

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