CEILING
CLOUDS
A highly effective treatment for reduction of sound reflection, the
Ceiling Cloud is suspended horizontally with a clip/eyelet combination.
Face and edges of the glass fiber core are wrapped in fabric or
perforated vinyl to match or accentuate the room decor.
Thicknesses and NRC Ratings: 1"
(.90-1.00), 2" (1.10).
A. SCOPE
This section includes all of the Acoustical Ceiling Clouds by Custom
Acoustical Products
(612)
685-3099 or FAX (763) 746-0110
B. MATERIALS
1. The Acoustical Ceiling Clouds shall be constructed of one piece of 7
PCF noncombustible and dimensionally stable glass fiber core. Each one
piece unit shall be (1/2"), (3/4"), (1"), (1-1/2"), (2") in thickness
and in length and width as required. All edges shall have internal edge
protection. The edges of the Ceiling Cloud shall be (square), (radius),
(bevel), (half-bevel) and corners (square), (radius).
2. The face, all edges, and a
return on the back of a minimum of 1-1/2" shall be covered with
(nonwoven or woven polyester fabric), (perforated vinyl), (manufacturer
approved custom fabric).
3. The Acoustical Ceiling Clouds
shall be mounted utilizing a clip/eyelet combination.
4. The Acoustical Ceiling Clouds
shall have a Noise Reduction Coefficient of (0.90 - 1.00, 1.10) using
ASTM C423-81a, Sound Absorption and Sound Absorption Coefficients by
the Reverberation Room Method.
C.
JOB CONDITIONS
1. Installation of all Acoustical Ceiling Clouds shall not
begin until all wet work, such as plastering, concrete, etc. is
completely dry. The ceiling clouds are designed for installation under
standard occupancy conditions from 60ºF to 85ºF and
at not more than 80% R.H. in an enclosed building.
2. The contractor shall be
responsible for the examination and acceptance of all surfaces and
conditions prior to the ceiling cloud installation.
D. INSTALLATION
1. All Acoustical Ceiling Clouds should be installed in
accordance with the manufacturer's specifications and recommendations.
2. All necessary hardware and
accessories for the complete job installation are to be furnished by
the contractor.
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