Air leaking into home from central AC in attic?
We had a central AC installed in our attic 4/1/08. It works fine for cooling purposes. Unfortunately, it also cools in the Fall/Winter months. We are in New England. I have had the installation company seal around the boxes in the attic to try to prevent
You should not be seeing the type of puffing that you have described.
If the penetrations where the duct work/air registers enter the rooms are tight and sealed and the same is true for the air return grills then there should be no air
