[Kensington Apartments - Building W]
The fire sprinkler scope of work consists of a NFPA 13R system for a four level apartment building. The system is supplied by 2” underground through a 2” backflow preventer to (4) 2” risers. There are floor level control valves in a valve house. The system piping is CPVC with extended coverage residential sprinklers.

There is a 6” standpipe with (4) 6” risers. Each standpipe riser has (3) hose valves. The FDC is connected to the standpipe per the fire marshal’s office. Each riser has a supervised sectional control valve. The fire marshal’s office has allowed the fire apparatus to supply 1000 Gpm in lieu of the 750 Gpm stated in the Boise Policy.

[BLD15-01117] - The drawings for site work (civil, landscaping, lawn sprinklers, site electrical, site plumbing, etc.) are filed under BLD15-01107 in ePlanReview. The NFPA 13-R fire sprinkler system is used for occupancy and for story increase. To construct a 42,997 square foot four story apartment building (10,993 sq. ft. 1st story with four 2.a units and four 3.a units, 10,993 sq. ft. 2nd story with four 2.a units and four 3.a units, 10,993 sq. ft. 3rd story with four 2.a units and four 3.a units, and 10,018 sq. ft. 4th story with four 2.a units and four 2.b units). All ground floor units are required to comply as Type B dwelling units. No elevator is provided in this building. Work is to include concrete footings, concrete foundations, concrete slabs on grade, wood stud bearing walls, wood stud shear walls, fiberglass shingles, fiber-cement board siding, manufactured stone veneer, 1-hr dwelling unit separations, .5-hr minimum fire-resistance-rated corridors with 20-minute smoke- and draft-control doors, exterior exit stairways fire rated like the corridors, steel stairways with concrete treads, interior nonbearing walls, millwork, and finishes. Special Inspection is required for soils and for concrete. The roof truss design is a deferred submittal item. The work is required to comply with the approved drawings, with the plan review report, and with all applicable codes and ordinances. The fire sprinkler system is required to comply with NFPA 13-R and the fire alarm system is required to comply with NFPA 72 as regulated by the Fire Department. Separate fire sprinkler permits and fire alarm permits shall be obtained prior to beginning any modification or installation work on such systems. **CJW**