I am thinking of blowing cellouse into my garage ceiling. My living room is directly above the garage. Do I need a vapor barrier between the ceiling and the insulation? If I don’t install a vapor barrier am I asking for trouble further down the road? Thanx!
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Is your garage heated? Are your garage walls insulated ? Insulated doors ? Your location? Need to answer these to get a educated reply, if the ceiling is already in place in the garage, you probably whould not have a problem.
IF IT WAS EASY, EVERYONE COULD DO IT!
I live in PA, walls are not insulated, the only heat is what comes from the lining area. The ceiling in the garage is plaster. Thanx!
Just put you insulation in, can't see a major problem. blow it in floor joist area. check out any lights, as recessed lights may cause a concern re ; clearences as well as chimneys ect. vapor barriers are only needed on warm side, more of concern is air infiltration. I have same situation as my kitchen & living room is above my garage / shop, but my furnace is in garage and my garage is insulated.
IF IT WAS EASY, EVERYONE COULD DO IT!
Thanx for the advice guys!
As insulation contractors we blow cellulose in the cavities after we have put up 1" extruded ridgid insulation and foam and seal. Your plywood forms your vapor barrier. bubble foil stapled under floor joists and complely taped and sealed takes advantage of radiant heat from your heated space and works. We have done this under cotttages