Air Permeability Testing
Air Permeability testing is required for every domestic and commercial new build to be fully compliant with Part L1A & L2A of the Building Regulations. An air permeability test is carried out with a specialised fan that depressurises or, where required, pressurises the dwelling. This is done to measure the amount of air lost as a result of the building’s design.
Why Airtight Testing Staffordshire?
At Airtight Testing Staffordshire, we provide a fast and reliable air permeability test service for new builds across the Midlands. We are also able to provide our air permeability testing throughout the UK on request.
What are the Air Permeability Requirements?
When it comes to building regulations, while there is a maximum air permeability value of 10 m3.h/m2, this is only a guideline. This is because every new build has its own designated air permeability target. This is something known as a ‘target score’ and is usually assigned by your SAP assessor at the beginning of your project.
Our air permeability test is carried out to ensure that your dwelling meets this initial target set by your SAP assessor. If your new build meets your required air permeability target, building control can then approve both the air permeability score along with your SAP calculations.