Specifications - State of Delaware

SECTION 085113 - ALUMINUM WINDOWS: continued
calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky
heat loss.
1. Temperature Change: 120ºF, ambient; 180ºF material surfaces.
G. Sound Transmission Class (STC): Rated for not less than 26 STC when tested for laboratory
sound transmission loss according to ASTM E90 and determined by ASTM E413.
H. Outside-Inside Transmission Class (OITC): Rated for not less than 22 OITC when tested for
laboratory sound transmission loss according to ASTM E90 and determined by ASTM E1332.
I. Windborne-Debris Resistance: Capable of resisting impact from windborne debris based on
testing glazed windows identical to those specified, according to ASTM E1886 and testing
information in ASTM E1996 and requirements of authorities having jurisdiction.
J. Blast Resistance:
1. Provide aluminum windows 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 window 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 windows 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.
2.03 ALUMINUM WINDOWS:
A. Operating Types: Provide the following operating types in locations indicated on Drawings:
1. Fixed.
B. Frames: Aluminum extrusions complying with AAMA/WDMA/CSA 101/I.S.2/A440.
1. Thermally Improved Construction: Fabricate frames with an integral, concealed, lowconductance
thermal barrier located between exterior materials and window members
exposed on interior side in a manner that eliminates direct metal-to-metal contact.
C. Glass: Clear annealed glass, ASTM C1036, Type 1, Class 1, q3.
1. Kind: Fully tempered.
D. Insulating-Glass Units: ASTM E2190, certified through IGCC as complying with
requirements of IGCC. See SECTION 088000 - GLAZING.
E. Glazing System: Manufacturer's standard factory-glazing system that produces weathertight
seal.
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