Depressurize Your Home to Find Air Leaks

Household air leaks can pose a serious threat to your wallet. If you’re concerned that you’re losing energy, you can find your leaks by depressurizing your home with a door blower test.

What is a door blower test?
A technician will install a temporary barrier across one exterior door of your home. This barrier has a built-in fan that will pull air out of the home at around 10 to 15 MPH. This will reduce the indoor air pressure. The barrier uses instruments to measure and the air pressure data in your home. The air pressure outside will drive the air indoors through the smallest cracks in your weather-stripping. Your technician will walk through your home with a “smoke pencil” to detect these leaks. A simple application of a sealant like spray foam insulation or caulk will solve the problem. Using this process, you can greatly increase the energy efficiency of your home and even keep out extra moisture and unwanted pests.

Getting prepared for the test.
There are a few things you should do to get ready for this test. First, you’ll want to secure anything that you don’t want flying around your home like small particles and loose paper. If you have a wood-burning fireplace, be sure to secure this area so you don’t get ashes all over your home. Second, disable any appliances that can create sparks or a flame—anything with a pilot light. Finally, open/close all of your windows and doors. Any exterior doors will need to be closed and all interior doors will need to be open for this test. This includes all doors to closets and cabinets as well.

Conducting this test can take about 2 hours or so, but it can be well worth the time and effort. It can give you invaluable information on the air leaks and weak spots in your home and save you some well-earned money in the long-term.