You learn something new every day
I learned something interesting today, and it makes sense if you think about it. Drafts in your home are caused by openings that allow air to move from outside to inside. Of course, the air inside your home has to move someplace as well.
Often air will come in through holes in insulation, around windows, and down vent pipes. So where does the air go out? A lot of times it can go out the same places, but it can also go out the drain pipes that go down into the ground. So your pipes can pull air out of your house causing air to be drawn inside from the outside world…
Funky huh…
