Illustration Source: Summerhill

9.10.9.16. (4) Except as provided in Sentence (5), where a storage garage is attached to or built into a building of residential occupancy,

(a) an air barrier system conforming to Subsection 9.25.3. shall be installed between the garage and the remainder of the building to provide an effective barrier to gas and exhaust fumes, and

(b) every door between the garage and the remainder of the building shall conform to Article 9.10.13.15.

(5) Where membrane materials are used to provide the required airtightness in the air barrier system, all joints shall be sealed and structurally supported.