The method is used to create natural environmental conditions that induce air leakage. During the actual test, a chamber is sealed over the interior or exterior face of a testing specimen. The chamber supplies air to or exhausts air at a rate required to maintain test pressure. As the pressure is adjusted, the airflow across the test specimen is recorded.
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This testing standard is most often specified to determine the air leakage of newly installed windows and doors. It is intended to measure air leakage associated with the assembly and not the leakage through the openings and adjacent construction. The testing can be adapted for use to correlate potential paths of leakage from within the installed openings.
This is helpful to identify air infiltrations so they can be controlled or eliminated. The testing is performed by sealing a chamber to the interior or exterior face of the test specimen, supplying or exhausting air from the chamber at a rate required to maintain the specified test pressure, and measuring the air flow lost or gained across the testing chamber. Extraneous air must also be documented to ensure proper measurement of leakage from the test specimen. The acceptable flow rate air loss is determined by subtracting the flow rate required to maintain constant pressure to the amount of extraneous air leakage.
Acceptable rates of airflow are determined by the project specifier. BDG utilizes professional testing equipment that is calibrated to each specific testing standard for accurate results.
Our field consultants are properly trained and knowledgeable of all testing standards. Far too often, we hear of incompetent testing companies trying to perform these precise tests with homemade equipment that does not meet calibration requirements.
If you are looking for a reputable second or third-party testing company to perform accurate professional testing, provide concise reports, and help you through the entire process, contact BDG today. We provide testing services throughout the United States from our headquarters located in Atlanta, GA.
Give us a call today to discuss your next air infiltration testing project.
ASTM E783-02 (2010): Field Measurement of Air Leakage Through Installed Exterior Windows and Doors
More E The factors affecting air pressure differences and the implications of the resulting air leakage relative to the environment within buildings are discussed in the literature. Such comparisons may not be valid unless the components being tested and compared are of essentially the same size, configuration, and design. The correlation between the laboratory and field test results, and the correlation between actual performance of in-service products and the response to these tests has not been established because of insufficient data.