R302.5.1

Section R302.5.1 is titled 'Opening protection' and covers requirements for openings in an assembly that separates an attached garage from a dwelling. Disallowance for direct connection from a private garage to a room used for sleeping, and allowable alternatives for door construction and closing mechanisms is established. The purpose of this section is to slow the spread of fire, heat, smoke, and vehicle exhaust through an assembly that separates an attached garage from a dwelling.

The model shows a partial section of a wall which separates a dwelling from its attached garage with the door highlighted.