Air Leakage
All new developments need an air leakage test, sometimes known as an air tightness test or air pressure test.
How we Test
Air Tightness is measured through a door blower fan system which is set up in the main external entrance of the dwelling. Once the Air Pressure Test Equipment is set up and all of the ventilation has been closed or sealed as per Pre-Test Checklist, the air pressure test fan will then de-pressurise the building to provide the Air Permeability.
The measurement is calculated by The leakage of air (m3/hour) in or out of the building per square metre of the buildings internal envelope at a reference pressure of 50 Pascal’s between the inside and outside of the building. In order to achieve a pass the Air tightness / Pressure test result must be less than or equivalent to the Design Air Permeability within the SAP Calculations.
