be [_____] mm inches.]
2.3.10
Louvers
**************************************************************************
NOTE: Delete inapplicable paragraph. Louvers shall
be specified to be provided with the building only
if formed metal louvers of the type standard with
the building manufacturer are acceptable. Check
with the Mechanical Engineer for special
requirements.
**************************************************************************
[Provide louvers and frames of the sizes, design, and color indicated.
Provide [manufacturer's standard factory finish] [the same finish specified
in paragraph entitled "Finish"] [mill finish]. Fold or bead blades at the
edges, set at an angle to exclude driving rains, and secure to the frames
by riveting or welding as standard with manufacturer. Provide mullions for
louvers over 1200 mm 4 feet in width; provide not less than one mullion for
each 1200 mm 4 foot width. Provide flanges on the interior face of frames
where air intakes or exhaust louvers are indicated to be connected with
mechanically-operated dampers or metal ductwork.
Provide woven wire bird
screening, not less than 8.5 by 8.5 mm mesh per square meter 3 by 3 mesh
per square inch in rewirable frames, on the [interior] [exterior] of
louvers; install screen frames by means of clips to allow easy removal for
cleaning and rewiring. The screens and frames shall be of the same type
metal as the louvers; screen wire shall be not less than 1.2 mm 0.0475 inch
in diameter.] [Specified in Section 15810N DUCTWORK AND DUCTWORK
ACCESSORIES. Provide framing and flashings as necessary for installation
of louvers.]
2.3.11
Skylights
Skylights shall conform to the requirements of Section 08600 SKYLIGHTS.
2.3.12
Light Transmitting Roof Panels (Insulating)
Standard with the manufacturer of [a nominal size of [_____] by [_____]
feet] [size indicated]. The light transmitting roof panels shall consist
of an interior and exterior plastic face with a sealed airspace of 25 to 37
mm one to 1 1/2 inches. The exterior plastic face shall be not less than
1.4 mm 0.055 inch thickness and shall have the same configurations as the
roofing panels. The interior plastic face shall be not less than 0.9 mm
0.035 inch thickness. Plastic faces shall be fiberglass consisting of
polyester synthetic resin reinforced with a fibrous glass mat and rated
self-extinguishing by Underwriters Laboratories. The "U" factor of the
light transmitting roof panels shall not be more than 0.50.
2.3.13
Light Transmitting Roof Panels (Noninsulating)
ASTM D 3841, Type II, Grade 1, weighing not less than 2.4 kg per square
meter 8 ounces per square foot, standard with the manufacturer. Size and
color as indicated. Provide light transmitting roof panels of the same
configuration as the roof panel.
2.3.14
Plastic Wall Lights
ASTM D 3841, Type II, Grade 1, weighing not less than 2.4 kg per square
meter 8 ounces per square foot, standard with the manufacturer. Size and
SECTION 13120
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