Building Air Leakage Testing

By specification these leakage rates are measured while the building is at a pressure difference of 50 to 75 pa between the interior and exterior.

Building air leakage testing.

During this process we record the air leakage rates and present them in a graph form in the final report. Part l states that new developments must meet specific air permeability targets to minimise the risk of heat loss and energy inefficiency caused by air leakage. In essence it is a measure of heat loss through cold draughts. Air testing also known as air pressure testing or air tightness testing is a requirement of the building regulations.

With few exceptions new dwellings will require an air leakage test as part of the building control post construction sign off procedure. As leaders in building air tightness testing and facade leakage we offer advice solutions and on demand testing to deliver the results for your project with our attma registered air tightness testers located in melbourne sydney brisbane and perth. During an air barrier test our experts use large commercial fans to depressurize and pressurize the building. An air leakage test is a test to determine the level of uncontrolled air flow through gaps or cracks in the fabric of a building.

At a test pressure of 75 pa 0 3 in a leakage rate of 0 4 cfm sq ft of air barrier would be a very high leakage rate and 0 1 cfm sq ft would be a very low leakage rate.