Fully Tempered to resist thermal breakage. Refer to
ASTM C 1048 for quality evaluation and refer to
manufacturer's data for performance and color
selection.
Factors which increase the risk of breakage include
building orientation, unusual shapes of lites, large
lites, indoor shading devices, heating registers,
and outdoor shading by trees, structure or exterior
shading devices.
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NOTE: NOTE for Navy Projects: Consult
manufacturer's literature for colors, thicknesses,
and transmittance values available. Coordinate with
safety glazing requirements and paragraph entitled
"Tempered Glass."
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Type I, Class 2 (heat absorbing and light reducing), Quality [q3 (select)]
[q4 (A)], [_____] mm inch thick, [_____] in color, [_____] percent light
transmittance, [_____] percent shading coefficient, conforming to ASTM C
1036. Color shall be [[gray] [bronze] [_____]] for 6 mm 1/4 inch
thickness.
2.1.4
Wired Glass
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NOTE: Wired glass is no longer produced in the
United States. On 17 March 1992 (effective for a
five year period) OSD determined that the Buy
America Act does not apply to the procurement of
wired glass and added the product to the list of
excepted materials under FAR 25.108(d)(1).
Accordingly, wired glass furnished in compliance
with Section 08800, "Glazing," does not violate the
Buy America Act.
Types of wired glass available are polished,
patterned, and tinted/heat-absorbing wired glass.
Wired glass cannot be tempered. Wired Glass does
not meet the requirements of 16 CFR 1201 and cannot
be used as safety glazing materials in situations
governed by that regulation.
Typically 6 mm (1/4 inch) thick wired glass is used
for fire-rated windows and doors where required by
building codes and other fire-protection criteria.
Only wired
glass in Mesh 1 - Diamond and Mesh 2 -
Square are
acceptable for fire rated door and window
openings.
Mesh 3 - Parallel is not acceptable for
fire rated
openings.
Wired glass, because of the wire mesh and edge
damage from cutting, is very susceptible to thermal
breakage. Heat absorbing wired glass increases the
tendency for breakage. Wired glass is also
SECTION 08800
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