Testing the completed using both pressurization and building depressurization and documenting that the air leakage rate of the building thermal envelope does not exceed 0 25 cfm ft2 under a pressure differential of 0 3 in.
Building air leakage test results.
Water 1 57 lb ft2 0 02 l s m2 under a pressure differential of 75 pa in accordance with.
The test measures air leakage rates through a building envelope under controlled pressurization and depressurization.
With few exceptions new dwellings will require an air leakage test as part of the building control post construction sign off procedure.
I ve worked on day long air sealing jobs that yielded anywhere between 10 frustrating to 30 satisfying reduction in air leakage.
Building testing is not a mandatory test prescribed in building codes but a performance based option that many designers are requiring.
In essence it is a measure of heat loss through cold draughts.
These test methods produce results that characterize the airtightness of the building envelope.
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.
Use of this standard in conjunction practices.
It s importanat to know what you ve achieved.