AIRTIGHTNESS (BLOWER DOOR) TESTING 

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We will perform airtightness (blower door) test compliant to CAN-CGSB-149.10 Determination of the airtightness of building envelopes by the fan depressurization method. We will determine the house's air changes per hour at 50 pascals (ACH@50 Pa), which the number of times per hour the entire heated volume of air in a house is replaced when the building envelope is subjected to an interior-exterior pressure differential of 50 pascals (Pa).

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View Sample Blower Door Test Report

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Add-on Services:

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Air Leakage Location Identification using Infrared Thermal Scanner and/or Smoke - we will walk around the inside of the house and use an air movement indicator (infrared thermal scanner and/or smoke) to locate air leakage points in the house. 

Exhaust Device Depressurization Test - performed on houses with combustion spillage susceptible appliances (e.g. combustion equipment that vents through a chimney such as fuel-fired natural draft furnaces, boilers, domestic water heaters, fireplaces and solid fuel-fired appliances). This test determines the level of house depressurization that can occur when all of the home’s exhaust appliances and ventilation devices are operating at the same time. A negative pressure environment could create backdrafting conditions, potentially resulting in the spillage of hazardous combustion exhaust gases into the house. 

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