406.3.4 Separation.
BC § 406.3.4
Separations shall comply with the following: 1. The private garage shall be separated from the dwelling unit and its attic area by means of a minimum 1-hour fire-rated construction. Garages beneath habitable rooms shall be separated from all habitable rooms above by not less than 1-hour fire-rated construction. Openings from a private garage directly into a room used for sleeping purposes shall not be permitted.
2.No air used for heating, cooling, or ventilation shall be circulated through private garages to dwelling areas.
3.A separation is not required between a Group R-3 occupancy and a carport, provided the carport does not have any enclosed areas above.
4.For free standing private garages where the fire separation distance from the nearest exterior wall is less than 5 feet, such exterior walls shall have a fire-resistance rating not less than one hour.
