c. For structural performance, the use of adhesives, plastic or
sonic welding or sealant is not allowed.
d. For longevity, the minimum ratio of panel weight to thickness
shall be [2.44 kg/m2 for 10 mm 0.5 psf for 0.4 inch] [3.3 kg/m2for
16 mm 0.68 psf for 0.63 inch] [4.4 kg/m2 for 55, 75,and 100 mm
double glazed 0.91 psf for 2.2, 3, and 4 inch double glazed] thick
panel.
e. The extruded panel shall include integral extruded
multi-cells, and truss-like structural core for resistance to
buckling. The panel's exterior skins shall be interconnected and
spaced apart by supporting ribs, perpendicular to the skins, at a
spacing not to exceed 4 mm 0.16 inches (truss-like construction).
In addition, the space between the two exterior skins in a cross
section shall be divided by multiple parallel intermediate
surfaces, at a spacing not to exceed 4 mm 0.16 inches.
f. Interior flame spread classification shall be Class [I] [II]
in accordance with ASTM E 84.
g. Smoke density shall be no greater than 70 in accordance with
ASTM D 2843.
h. The exterior and interior faces shall be an approved light
transmitting panel with a CC1 fire rating classification in
accordance with ASTM D 635.
i. Self-ignition shall be greater than 570 degrees C 1058 degrees
F in accordance with ASTM D 1929.
j. Fire rated roof assembly translucent panels shall be
successfully evaluated for fire from exterior exposure per [ASTM E
108] [_____] to meet Class [A] [B] [C] rating. The panel shall be
listed by an independent recognized listing laboratory.
2.4
COMMON PANEL REQUIREMENTS
2.4.1
Appearance
The face sheets shall be uniform in color to prevent splotchy appearance.
Faces shall be completely free of ridges and wrinkles which prevent proper
surface contact. Clusters of air bubbles/pinholes which collect moisture
and dirt are not acceptable.
2.4.2
Panel Fabrication
Panel construction shall meet the following requirements:
Light
transmission [_____] %; color [_____].
2.4.3
Thermal Performance
**************************************************************************
NOTE: A U factor of up to 4.3 W/m2K(0.75 Btu/hr-ft2
-F) may be aceeptable for particular climate zones
in the United States for skylight products. SHGC
ratings should be equal to or less than 2.3 W/m2
K(0.40 Btu/hr-ft2-F). Selection and use of the
SECTION 08600
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