Blower Door Test

The blower door test set up. A comfortable, energy-efficient building depends on more than insulation and efficient heating or cooling equipment. It also depends on how well the building controls air movement. Small gaps around windows, doors, plumbing lines, electrical penetrations, attics, and other areas can allow conditioned air to escape and outdoor air to enter. A blower door test is used to measure this uncontrolled air leakage and determine how airtight a home or buil