R302.5

Section R302.5 is titled 'Dwelling-garage opening and penetration protection' and covers the requirements for openings and penetrations in an assembly that separates an attached garage from a dwelling. A cross-reference to subsections which detail the technical requirements for these openings and penetrations is established. The purpose of this section is to slow the spread of fire.

The model shows a partial section of a wall which separates a dwelling from its attached garage. The door, duct, and outlet are openings and penetrations that are required to conform with this section and its subsections.