Specifications - State of Delaware

SECTION 084113 - ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS: continued
Base engineering calculation on surface temperatures of materials due to both solar heat gain
and nighttime-sky heat loss.
1. Temperature Change (Range): 120ºF, ambient; 180ºF, material surfaces.
2. Test Performance: No buckling; stress on glass; sealant failure; excess stress on framing,
anchors, and fasteners; or reduction of performance when tested according to
AAMA 501.5.
a. High Exterior Ambient-Air Temperature: That which produces an exterior metalsurface
temperature of 180ºF.
b. Low Exterior Ambient-Air Temperature: 0ºF.
3. Interior Ambient-Air Temperature: 75ºF.
L. Condensation Resistance: Provide aluminum-framed systems with fixed glazing and framing
areas having condensation-resistance factor (CRF) of not less than 45 when tested according to
AAMA 1503.
M. Thermal Conductance: Provide aluminum-framed systems with fixed glazing and framing
areas having an average U-factor of not more than 0.57 Btu/sq. ft. by height by ºF when tested
according to AAMA 1503.
N. Blast Resistance:
1. Provide aluminum-framed entrances and storefronts with framing members capable of
withstanding a uniform static pressure applied to all glazing surfaces equal to the
equivalent 3-second duration design loading determined in accordance with
ASTM F2248 using explosive weight I as specified in UFC 4-010-02 and a standoff
distance of 148 ft.
a. Framing members shall restrict edge deflections of glazing panes to 1/160 of the
supported edge length, as determined in accordance with UFC 4-010-01, at
allowable stress levels under the equivalent 3-second duration design loading.
2. Provide aluminum-framed entrance and storefront connections to surrounding structural
elements, hardware and associated connections, and glazing stop connections capable of
withstanding a uniform static pressure applied to all glazing surfaces equal to two times
the equivalent 3-second duration design loading determined in accordance with
ASTM F2248 using explosive weight I as specified in UFC 4-010-02 and a standoff
distance of 148 ft.
a. Design of connections shall be based upon allowable stress levels. Allowable
fastener loads shall be as recommended by the manufacturer for the materials to
which glazing systems are being connected.
b. Connections shall be capable of preventing the frame from being dislodged from the
supporting structural elements, as demonstrated by calculation or testing in
accordance with UFC 4-010-01.
3. As an alternative to the requirements specified above, provide aluminum-framed
entrances and storefronts that have been tested in accordance with ASTM F1642 and
received a hazard rating of Very Low or better for the peak pressure and positive phase
impulse that correspond to each of the following:
a. Explosive weight I as specified in UFC 4-010-02 at a standoff distance of 148 ft.
b. Explosive weight II as specified in UFC 4-010-02 at a standoff distance of 82 ft.
1.06 SUBMITTALS:
A. Product Data: For each type of product indicated. Include construction details, material
descriptions, dimensions of individual components and profiles, and finishes for aluminumframed
systems.
DEAN084113.DOC 084113-5