Whole Building Air Barrier Testing
To verify that the building envelope meets energy code or performance requirements, whole building air barrier testing may be conducted. Air leakage testing can identify air leakage pathways. An inefficient air barrier system can contribute to an increase in energy use, as more heating and cooling are used to regulate the building. Standard test ASTM E779, is conducted using orifice blower door fans that induce a series of positive and negative pressures on the building envelope. The tested air leakage is not to exceed 0.40 cfm/ft2 at 75 pa.
If the air leakage exceeds the limit, ABB Testing can conduct:
- Visual inspection of air barrier
- Seal leaks where practicable
- Additional report outlining corrective action
Air Barrier Testing Standards
- ASTM E779 – Standard Test Method for Determining Air Leakage Rate by Fan Pressurization
- ASTM E1186 – Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems – TEST STANDARDS
- ASTM E783 – Standard Test Method for Field Measurement of Air Leakage Through Installed Exterior Windows and Doors – DIAGNOSIC STANDARDS