12/13/2025
One of the biggest ways to detect where airflow is coming from and to help us locate where drafty issues need to be sealed, is using what is called a blower door. This is absolutely a must where/when possible to do. We literally create a suction from inside the home, to out, helping us pinpoint areas of draft throughout the house. A blower door test can also assure that all work done air sealing and/or insulating will be effective as possible, while holding us accountable and justifying time spent sealing and insulating .We typically do a blower door air flow test before starting any work to see how tight the home is and after completion to see what the final air flow reduction is in the home. There have been some cases where a home is already tight enough where we would limit what we seal and/or insulate..That's why this is a must when possible , especially with smaller homes.