Is there some requirement that the garage door to the house (eg
basement) needs to be 4 inches above the garage floor? My current door
is 3inches above. Apparently this is because of some carbonmonoxide
concern. Any info on this would be appreciated.
I find no requirement in International Residential Code 2003 for a
change in floor level.
Floor is to slope to drain liquids to drain.
Door is to be solid core wood 1/38" thick, steel door, or 20 minute
Wall is to be made of 1/2" gypsum board.
Ceiling between garage and habitable room above is to include 5/8"
I don't know what the code is, but all of the garage doors that I have seen
in New Jersey lately seem to be 6" - 8" above the garage floor. I think
this is to prevent gasoline fumes, which lay low, from entering the house.
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