For ducted exhaust fans, the fan airflow rating and duct sizing are in accordance with Appendix A.(2) A carport is installed, the garage is detached from the building, or no garage is 10 installed.Addition Note: Section 901.3 applies where the addition is a garage or shares a continuous Mandatoryair barrier with a garage. 0 Additional PointsRenovation Note: Section 901.3 applies to renovations tha