Something I would encourage if possible. When pentrating walls or ceilings, try to sleeve them. We just used some plastic pipe here. At the top of the box I'm going to stuff insulation into the sleeve and seal it. This way it will look clean underneath. A previous installer used thumb putty which works but doesn't look great. Previous installer used

Posted by HVAC Know It All at 2022-06-07 13:03:16 UTC