Possibly the tightest house ever?

I am conduction a whole house blower door test by using a duct blaster. This is a much smaller fan and more suited for testing extreamly tight houses. I can achieve more accurate results this way. I cut out a plywood board to house the fan in the window opening. At -50 Pa. I'm testing at 22 CFM. This means my air changes per hour (ACH) is 0.106 at -50Pa. The house is as-lived in. What I mean by this is that I did not tape off any vents inside or outside. The doors are simply shut against thier factory weatherstripping. Also, my trap door to the crawlspace is open to that it is communicating with my living space. I like to do this because the crawlspace is part of my conditioned space, so I believe it should be included in the test.

Видео Possibly the tightest house ever? канала DavidPoz