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January 6, 2017
Using a blower door--a device that sucks the air out of your house to simulate an especially windy day--is the best way to identify where your house leaks. For many of us, a thousand little pin pricks may add up to a hole in your house the size of a window left open 24 hours a day, 365 says per year.
By using a blower door in coordination with air sealing, we can identify the biggest leaks and get them sealed.
This video from Green Building Advisor shows how it's done.