designed to be bullet-resistant to the specified test standard in paragraph
COMPONENT TEST REQUIREMENTS. Manufacturer's descriptive data, certificate,
and test report showing compliance with the specified forced entry standard
shall be submitted. The free area of the total square meters feet of the
louver shall be [17 percent for channel style louvers] [39 percent for
chevron style louvers (inverted angles at 25 mm 1 inch on center)] [[_____]
percent]. Louver submitted shall have been tested in accordance with AMCA
500-D airflow test. Minimum airflow shall be [[_____] percent for channel
style] [[_____] percent for chevron style] [[_____] percent]. Airflow
calculations and test data showing compliance shall be submitted.
2.6
BULLET-RESISTANT STEEL BIFOLD DOORS, FRAMES, AND HARDWARE
Bifold doors shall consist of two leaves per door, four per opening, as
indicated on the drawings. Hardware shall allow easy manual movement of
doors. Doors and hardware shall be either entirely jamb-supported or
jamb-supported with floor rollers to reduce bearing load on hinges. Steel
hinges shall be of ample length to prevent sagging, and shall be
through-bolted in accordance with manufacturer's instructions. Operators
and all installation hardware shall be the product of a manufacturer which
specifically designs and produces hardware for heavy-duty industrial-type
doors. Door surfaces shall be factory primed for painting and reinforced
and prepared for hardware installation. [Bifold doors shall be manually
securable from the protected side through actuation of surface-mounted cane
bolt or similar device as recommended by manufacturer.] Maximum clearance
at bottom of doors shall be 25 mm 1 inch. Exterior doors shall be provided
with weather seals at jambs, head, and sill.
2.6.1
Testing
Bullet-resistant bifold door shall be subjected to testing by manufacturer
to demonstrate appropriate design, strength, and application and operation
of all hardware, both manual and electric. Door tests shall replicate
actual installation to the maximum extent possible. The Contractor shall
coordinate arrangements with Contracting Officer as to time and location of
tests. Tests shall be witnessed and results subjected to approval by
representatives of the Contracting Officer prior to delivery of the doors
to the job site.
2.6.2
Bifold Doors
Bullet-resistant bifold doors shall be furnished complete with [pneumatic
operators] [electric operators] [and other] accessories specified. The
operator shall be so designed that the motor may be removed without
affecting emergency auxiliary operators. [A manual operator of crank-gear
or chain-gear mechanism shall be provided to allow manual operation in case
of power failure. A device shall be provided for locking the chain or
crank.]
2.6.3
Power Operators
Power operators shall be [pneumatic] [electric] type conforming to NFPA 80
and the requirements specified herein. Readily adjustable limit switches
shall be provided to automatically stop the door in its full open or closed
position. [All operating devices shall be suitable for the hazardous
Class, Division, and Group shown, as defined in NFPA 70.]
SECTION 11035
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