Blower Door Testing
Our technicians and equipment can test your project or facility in compliance with the latest industry standards:
- ASTM E 779: Standard Test Method for Determining Air Leakage Rate by Fan Pressurization.
- ASTM C 1060: Standard Practice for Thermography Inspection of Insulation Installations in Enclosure Cavities of Framed Buildings.
- ASTM E 1186: Standard Practices for Air Leakage Site Detection in Building Enclosures and Air Barrier Systems.
- ASTM E 1827: Standard Test Methods for Determining Air tightness of Buildings Using an Orifice Blower Door.
- ASTM E 2178: Standard Test Method for Air Permeance of Building Materials.
- ISO 6781: Thermal Insulation – Qualitative Detection of Thermal Irregularities in Building Enclosures – Infrared Method First Edition.
- US Army Corps of Engineers: Air Leakage Test Protocol for Building Enclosures – Version 3
More About Air Leakage
As the difference between indoor and outdoor air pressure in a building grows, air will leak out. The top areas and lowest floors of a building are areas with the biggest air pressure differences. Because warm and cold air rise and fall in a building, leaks in these areas are typically greater than elsewhere. The warm inside air will rise and leak out any unsealed areas near the top of the building. Cold outside air will seep in through breaches near the bottom of the building.
If properly ventilated, relatively airtight buildings are more cost-efficient and provide better occupant comfort. Occupants experience fewer drafts, and it costs far less to maintain comfortable air temperatures and healthy air circulation.
Proper airflow also helps preserve the quality of the building’s materials. As moist, heated air leaks into cooler insulated walls, ceilings and roofs, the warm vapor condenses on the cool surfaces creating an ideal environment for the growth of mold, mildew, and other unhealthy condensation conditions. These conditions can have an adverse effect on anyone with allergies and can be a contributor to “Sick Building Syndrome.”