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Air Pressure Testing

Air pressure tests are the mandatory method by which developers measure the air tightness of their residential developments. Testing shows how well properties will retain heat and in turn reduce carbon emissions, making them more efficient and cheaper to maintain.

An Energy Performance Certificate (EPC) is a compulsory requirement on all newly built residential units, which are produced from the SAP. We will provide your EPCs free of charge if you purchase your SAP assessments from us.

How does it work?

Air pressure tests are carried out by increasing the air pressure within your properties and then measuring the rate by which the pressure returns to normal. This is carried out using large fans inserted in the entrance doorway. The number of units you will have to test will depend on the number of unit types on your development.

Accredited Construction Details are the Department for Communities and Local Government (DCLG) approved standards of construction. If you’re building to these standards, you need only test one of each type of unit on your development. Typically, units that are a similar size, made of the same materials and built using the same methods of construction would make up a construction type. If you are unsure as to how many construction types you have on your development, please refer this to Building Control.

If you’re not using Accredited Construction Details, the following tests will be required:

Number of construction types Number of tests to be carried out on each type
4 or less One
5 to 40 Two
More than 40 At least 5% of the construction type, however if the first 5 units of any type pass, then this is reduced to 2%

Once completed, you will receive a full report on your results. If your properties fail the tests, you will also be consulted as to why the properties failed and what you need to do to prevent future failures.

For further information, or for a free quotation on your next development contact us on 0151 650 4306 or email services@premierguarantee.co.uk.

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