and shall conform to BHMA A156.13. Strikes for all mortise locks and
latches, including deadlocks, shall conform to BHMA A115.1 except strikes
for security doors shall be rectangular, without lip. Mortise-type locks
and latches for doors 44 mm 1-3/4 inches thick and over shall have
adjustable bevel fronts or otherwise conform to the shape of the door.
Mortise locks shall have armored fronts. Mortise locks and latches shall
have full escutcheon, thru-bolted, extruded stainless steel trim.
2.4.6.2
Hinges
All 2.1 m 7 feet - 0 inch high doors shall be equipped with a minimum of
three Grade 1 hinges in accordance with BHMA A156.1, minimum size 125 mm 5
inches high, heavy, double or triple weight as required for weight of door,
or a single, continuous extra-heavy-duty piano-type hinge sized to carry
the weight of the door without sagging. For each additional 300 mm 12
inches of door height beyond 2.1 m 7 feet - 0 inch, provide minimum of one
more hinge shall be provided. Doors greater than 2.1 m 7 feet - 0 inches
shall be equipped with a minimum of four hinges. Hinges shall be full
mortise, half mortise, full surface or half surface design as recommended
by manufacturer for frame and door design, and shall be tamperproof or
mounted on the inside face of the door. The Contractor shall provide hinge
manufacturer's certification that the hinge supplied meets all applicable
test requirements of BHMA A156.1, type, number of hinges specified, and
that the hinge is suitable for the size and weight of the door assembly on
which it will be utilized. If continuous piano-type hinges are provided
with door, independent laboratory reports covering both the door weight
capacity and a 2,500,000-cycle testing to match BHMA A156.1 Grade 1
requirements shall be furnished by the Contractor. Interior door hinges
shall be furnished in steel, prime coated. Exterior door hinges shall be
nonferrous metal or stainless steel.
2.4.6.3
Electric Strikes
Electric strikes shall conform to BHMA A156.5, Grade 1. Strike boxes shall
be furnished with dead bolt and latch strikes for Grade 1.
2.4.6.4
Door Closers
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NOTE: Due to the excessive weight of
bullet-resistant doors, they will present a safety
hazard if allowed to close unchecked. Coordinate
with manufacturers to ensure selection of proper
size and types of closers.
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Closers shall be extra heavy duty of size and type recommended by
manufacturer, and shall be Grade 1 in accordance with BHMA A156.4. Door
closer finish shall be [600] [689] [690] [691] [692] in accordance with
BHMA A156.18.
2.4.6.5
Door Stops and Holders
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NOTE: Due to the excessive weight of
bullet-resistant doors, they will present a safety
hazard if allowed to have an uncontrolled opening
cycle, particularly exterior out-swinging doors
subject to wind pressure. Coordinate with
SECTION 11035
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