[Kensington Apartments - Building Q]
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 1 ½” riser. There are floor
level control valves in a valve house. The system piping is CPVC except for the standpipes which are
steel.
There are four dry manual 4” standpipes.
The drawings 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 36,450 square foot four story apartment
building (9,425 sq. ft. 1st story with four 1.a units and four 2.a units, 9,425 sq. ft. 2nd story with four 1.a
units and four 2.a units, 9,425 sq. ft. 3rd story with four 1.a units and four 2.a units, and 8,175 sq. ft. 4th
story with four 1.a units and four 1.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