standoff distances are met. This does not include
guard type facilities, single and duplex detached
family housing. These requirements are specified in
"Department of Defense Antiterrorism Standards for
Buildings".
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[Exterior frames, mullions, and window hardware shall be designed to resist
equivalent static design loads of 7 kilopascals1 pound per square inch
applied to the surface of the glazing. Frame and mullion deformations
shall not exceed 1/60 of the unsupported member lengths. A window that
complies with the AAMA 101 Optional Performance Grade 60 is acceptable in
lieu of tests or calculations showing compliance with load requirement
specified above. The Contractor may use other products, but must
demonstrate by calculations or tests that the window complies with the
loading requirement. Equivalent static design loads for connections of
window to the surrounding walls or hardware and associated connections, and
glazing stop connections shall be 75 kilopascals 10.8 pounds per square inch
for glazing panels with a vision area less than or equal to 1.0 square
meter 10.8 square feet and 30 kilopascals 4.4 pounds per square inch for
glazing panels with a vision area greater than 1.0 square meter 10.8 square
feetbut less than or equal to 3.0 square meters 32 square feet.
Alternatively, use frames that provide an equivalent level of performance.]
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NOTE: Performance Grades represent design pressure
values for which products have been tested. Specify
an Optional Performance Grade where a higher than
minimum Performance Grade is desired due to severe
weather conditions and wind loadings. Optional
Performance Grade windows shall be tested in
compliance with AAMA 101. Testing shall substantiate
requirements for uniform loading (structural), water
resistance, and air infiltration.
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NOTE: Use frame designation C, HC or AW with a
minimum Optional Performance Grade 60 for windows
that are required to meet minimum measures in
Department of Defense Antiterrorism Standards for
Buildings.
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2.1.1
Awning Windows (AP)
Type AP-[R15][C30][HC40][[C][HC][AW]- 60 (Optional Performance Grade)].
Conceal operating mechanism within the frame members or enclose within a
metal casing not less than 1.59 mm 0.0625 inch thick sheet aluminum.
2.1.2
Casement Windows (C)
Type C-[R15][C30][HC40][[C][HC][AW]- 60 (Optional Performance Grade)].
Ventilators shall be [rotary crank] [handle] operated. Provide ventilators
over 1650 millimeters 66 inches high with two separate locking devices or a
two-point locking device operated by rods from a single lever handle.
Conceal rods where possible. [Provide casement windows in combination with
[fixed] [projected] windows specified below.]
SECTION 08520N
Page 10
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