What is a Blower Door?
- Flash Blower Door Testing
- June 23, 2019
A blower door is simply a diagnostic tool used to measure how much air filters out of your house (your home’s “airtightness”). The blower door is made up of a high powered fan which pulls air out of the house, lowering the air pressure inside. The higher air pressure outside then flows in through all unsealed cracks and openings. The blower door allows auditors to apply a consistent and measurable pressure to the house so that houses can be compared accurately. A calibrated door which our company will use offers several gauges that measure the amount of air pulled out of the house also known as Pascals (PA). The calibrated blower door’s data allow the auditor to quantify the amount of air leakage and the effectiveness of any air sealing jobs. To make certain the equipment has accurate readings, you must have your home clear of dust and dirt. For more information on the process refer to the FlashBDT checklist .
