Originally Posted By: aobrien This post was automatically imported from our archived forum.
In a raised bungalow with an attached garage would you seal off the attic space with a vapor barrier or let the air in the attic and garage mix. I do understand there has to be a air tight seal from the garage to the house, but does the attic count.
Originally Posted By: mlong This post was automatically imported from our archived forum.
If an attic is ventilated properly, it’s basically moving air from the out of doors through it, so I see no reason why it can’t mix with the garage air, which should also be adequately ventilated. The key is that the wall adjacent to the house, as well as the garage ceiling should be fire rated.
Originally Posted By: bkelly2 This post was automatically imported from our archived forum.
I am not sure I understand the vapor barrier question. Garage ceilings are generally fire rated to keep a garage fire from spreading quickly to the residence. Or to keep the occupants safe from smoke inhalation in the event of a garage fire.
– “I used to be disgusted, Now I try to Be amused”-Elvis Costello
Originally Posted By: rwand1 This post was automatically imported from our archived forum.
Vapour barriers are installed on the warm side of the dwelling. So it would be an improper use in a garage or attic space. Perhaps a air barrier would be more appropriate in this situation along with drywall to the underside of the common area of the garage/attic/living space.