Blower doors consist of a frame and flexible panel that fit in a doorway, a variable-speed
fan, a pressure gauge to measure the pressure differences inside and outside the home, and
an airflow manometer and hoses for measuring airflow.
2. Combustion Appliance Zone Testing
CAZ Testing is a health and safety test that is important where combustion appliances
are inuse. Test are designed to insure that there is no leakage of flammable fuels or
combustion gases into theliving space and that appliances are functioning in a safe and
3. Infrared Thermal Image Scan
Using an infrared thermograph, a special infrared camera, the auditor can identify
where the building is better insulated, and where opportunities exist to improve
insulation or air sealing. By capturing temperature variations of the building's
surfaces using wavelengths that are invisible to the naked eye, the camera identifies
"hot" and "cold" spots in the building envelope, which allows the auditor to see what's
going on behind the walls.