Blower Door 2017-03-19T01:47:35+00:00

Blower Door

   A blower door is a machine used to test how airtight a home is constructed.  Blower doors are used  to assess the construction quality of the building envelope, locate air leakage pathways, assess how much ventilation is supplied by the air leakage, assess the energy losses resulting from that air leakage, determine if the building meets compliance with building performance standards.

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.  The fan is calibrated to depressurize the home; the calibrated blower door’s data allow the auditor to quantify the amount of air leakage. The fan pulls air out of the house, lowering the air pressure inside. The higher outside air pressure then flows in through all unsealed cracks and openings.  This allows us to find air leaks and drafts by hand, with a smoke pencil and with infrared cameras.

After a blower door test you have an accurate measurement of your home’s air tightness.  We also perform a blower door test after any work is completed to give an accurate and quantifiable result of any work completed.

Accurate Reports

Generated reports before and after to quantify results.

Infrared Technology

Infrared Cameras can detect missing or inadequate insulation.

Peace of Mind

Know that your home has reached maximum energy efficiency.

Contact us directly at (919) 924-7600

Did You Know?

Saving energy not only reduces your power bill it also reduces your carbon footprint.