Attached Garages

The garage is physically attached to the house as an addition. Since this  type of garage is part of the main residential structure, it may or may not have habitable living space immediately above it.  Because the attached garage is connected to the residential structure, certain measures should be taken to minimize the hazards associated with fuels and fuel exhaust.  The walls immediately adjacent to all habitable space should be separated from the residence and the attic areas by at least 1/2 inch gypsum board applied to the garage sides.  If living space is immediately above the garage area, there can be no holes or open penetrations in the gypsum board.  Some jurisdictions require 5/8 FIRE-X gypsum when used in a garage.