susceptible to edge breakage from water penetrating
the capillary in which the wires reside. The
glazing system should insure that the edges are kept
dry by sealing the edges with silicone.
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Glass for fire-rated windows shall be UL listed and shall be rated for
[45] [20] minutes when tested in acccordance with ASTM E 2010. Wired glass
shall be Type II flat type, Class [1 - translucent] [2 - tinted,
heat-absorbing] [3 - tinted, light-reducing], Quality [q7 - decorative] [q8
- glazing], Form [1 - wired and polished both sides] [2 - patterned and
wired], [_____] percent light transmittance, [_____] percent shading
coefficient, conforming to ASTM C 1036. Wire mesh shall be polished
stainless steel Mesh [1 - diamond] [2 - square] [3 - parallel]. Wired
glass for fire-rated windows shall bear an identifying UL label or the
label of a nationally recognized testing agency, and shall be rated for
[20] [45] minutes when tested in accordance with NFPA 257. Wired glass for
fire-rated doors shall be tested as part of a door assembly in accordance
with NFPA 252.
2.1.5
Patterned Glass
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NOTE: Patterned glass is normally provided for
windows of toilet rooms, vertical sliding sash in
post offices borrowed light sash at entrances, etc.
Patterned glass is available in various thicknesses,
with a pattern embossed on one or both sides. This
glass is frequently called "figured", "obscure", or
"decorative" glass. The degree of diffusion
achieved is a function of the pattern and whether
the pattern is on one or both sides. Some patterned
glass cannot be heat-strengthened or tempered
because of the pattern depth. Pattern glass does
not offer complete obscurity and must be used with
caution in very private areas such as toilets. The
appropriate pattern designation should be selected
from ASTM C 1036. If a more specific pattern
designation is desired, a manufacturer's name and
pattern may be specified. When specific
manufacturer's names and patterns are specified, the
designer should add the following note to the spec:
"Manufacturer's name and patterns indicated are for
identification purposes only; the listing is not
intended to limit selection of similar patterns from
other manufacturers." Refer to GANA GLAZING MANUAL,
and glass manufacturer's performance tables for
proper evaluation of patterned glass thickness and
size of opening to be glazed. Patterned glass 3 mm
1/8 inch thick should not be larger than 2.15 square
meters 6 square feet.
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Type II, Class 1 (translucent), Form 3 (patterned), Quality q7
(decorative), Finish [f1 (patterned one side)] [f2 (patterned two sides)],
Pattern [p1 (linear)] [p2 (geometric)] [p3 (random)] [p4 (special)],
[[_____] percent light transmittance, [_____] percent shading coefficient.]
[3] [6] mm [1/8] [7/32] inch thick. [Provide [_____].]
SECTION 08800
Page 15
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