The process of increasing air pressure inside a building relative to the outside. This can be achieved during a blower door test to identify air leakage points.
Negative Pressure Test
The Negative Pressure Test, also called a depressurization or blower door test, assesses a building’s airtightness by creating a pressure differential. Learn how it helps identify air leakage, quantify energy loss, and guide targeted air sealing efforts for improved energy efficiency and indoor comfort.