What is an air tightness test?
Air tightness testing measures how much air is leaking through the cracks and gaps in a building’s fabric. It’s also known as air permeability testing or air leakage testing.
How is a test carried out?
Testing is done on site when a new building has been completed, with the results available immediately. Any leakages can then be addressed without the need for another site visit.
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Why do I need an air test?
This is a requirement for all new buildings – whether residential, commercial or public – under Part L of Building Regulations. It forms part of the SAP calculation for new homes and part of the SBEM calculation for any building that isn’t residential.
What else you might want to know…
I am an experienced tester and a member of the Air Tightness Testing and Measuring Association (ATTMA). If you’d like to understand a little more about how the process works, give me a call or send me an email.