Where an approved automatic fire sprinkler system is provided in buildings, the following substitutions may be approved by the building official; provided that these exceptions shall not apply to buildings covered by title 19 of the California administrative code:
(A) Occupancy separations may be reduced by one hour.
(B) Exterior wall protection due to the proximity of property lines may be reduced by fifty percent (50%).
(C) Party walls for adjacent property may be approved by the building official subject to the following conditions:
1. Both buildings are equipped with approved automatic fire extinguishing systems.
2. The party wall is a minimum of a two (2) hour fire rated wall.
3. The area of the combined buildings is within the allowable area for a single building.
4. An approved party wall agreement signed by both property owners is recorded in the county recorder's office.
(D) Vertical shaft enclosures may be reduced by one hour but in no case less than one hour in buildings three (3) or more stories in height.
(E) Corridor protection may be reduced to thirty (30) minute wood frame construction with twenty (20) minute labeled assemblies on all openings.
(F) Fire protection for exit enclosures and exterior smokeproof enclosures may be reduced by fifty percent (50%) but in no case to less than one hour.
(G) Exit courts and passageways may be constructed with thirty (30) minute fire protection with twenty (20) minute labeled assemblies in all openings.
(H) Fire protection for exterior walls, floors, ceilings may be reduced by fifty percent (50%).
(I) Plumbing schedule 40 ABS and PVC-DWV piping installations may be used in those structures where combustible construction is allowed. (Ord. 2016-7, 12-5-2016)