Blower Test

What is a Blower Test?

Definition: What Does the Term “Blower Test” Mean?

The term blower test is used to describe the procedure that is implemented to test a structure for air movement and air exchanges. As an energy saving procedure, the sealing of exterior sheathing, electric outlets, etc., is made to ensure that air exchanges within a structure is minimized to increase energy efficiency.

A blower test is the installation of a mechanical fan in an opening of a structure, and the pressurizing of this space to measure air loss. If too much air is lost, and a pressure within the space cannot be achieved, the energy efficiency of the space will be compromised. Blower tests are performed through the front door, open window, or even in openings specially constructed for such a test. In most cases, a licensed professional will conduct the blower test to ensure accuracy.