Aluminum Windows
Certificates stating that the aluminum windows are AAMA
certified conforming to requirements of this section. Labels or
markings permanently affixed to the window will be accepted in
lieu of certificates. Product ratings determined using NFRC 100
and NFRC 200 shall be authorized for certification and properly
labeled by the manufacturer.
1.3
WINDOW PERFORMANCE
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NOTE: Structural performance, air infiltration and
water penetration are standard performance
requirements for all aluminum window types.
"Thermal Performance" and "Sound Attenuation" are
optional to designer, and should be omitted or
revised as needed to meet project requirements.
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Aluminum windows shall meet the following performance requirements.
Testing requirements shall be performed by an independent testing
laboratory or agency.
1.3.1
Structural Performance
Structural test pressures on window units shall be for positive load
(inward) and negative load (outward) in accordance with ASTM E 330. After
testing, there shall be no glass breakage, permanent damage to fasteners,
hardware parts, support arms or actuating mechanisms or any other damage
which could cause window to be inoperable. There shall be no permanent
deformation of any main frame, sash or ventilator member in excess of the
requirements established by AAMA 101 for the window types and
classification specified in this section.
1.3.2
Air Infiltration
Air infiltration shall not exceed the amount established by AAMA 101 for
each window type when tested in accordance with ASTM E 283.
1.3.3
Water Penetration
Water penetration shall not exceed the amount established by AAMA 101 for
each window type when tested in accordance with [ASTM E 547] [ASTM E 331].
1.3.4
Thermal Performance
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NOTE: A U-factor of up to 4.3 W/m2K (0.75 Btu/hr-ft2
-F) may be acceptable for particular climate zones
in the United States for aluminum window products
and thermally improved aluminum window products.
Solar heat gain coefficient (SHGC) ratings should be
equal to or less than 2.3 W/m2K (0.40 Btu/hr-ft2-F).
Selection and use of the window products in this
category should be used only in cooling dominated
climates and be dependent upon qualifying for the
Southern climate zone as determined by the DOE
Energy Star Windows program. Certain products that
SECTION 08520A
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