ARCHITECTURAL SPECIFICATIONS
Part 1: General
1.1 Scope
Specify areas to receive this
acoustical treatment.
1.2 Qualifications
Construction conditions shall
comply with ASTM C636. Acoustical
material and suspension systems,
including all necessary
hangers, grillage, splines and
supporting hardware, shall be
furnished and installed by an
acoustical contractor.
1.3 Delivery and Storage of
Materials
All materials shall be delivered
in their original unopened
packages and stored in an enclosed
shelter providing protection
from damage and exposure to
the elements. Damaged or
deteriorated materials shall
be removed from the premises.
Immediately before installation,
tile and panels shall be stored
for a sufficient time to stabilize
temperature and humidity
conditions ambient during installation
and anticipated for
occupancy.
1.4 Environmental Conditions
Installation of ACOUSTONE and
AURATONE acoustical tile and
panels and suspension systems
shall not begin until building is
enclosed, permanent heating
and cooling equipment is in
operation, and residual moisture
from plaster, concrete or
terrazzo work has dissipated.
Installation of Gypsum Lay-in
panels shall not begin in an
exterior application until
protection from direct exposure
to water and weather has been
provided. ORION and ECLIPSE
ceiling products and PREMIER glass
fiber ceiling panels can be
installed and used in temperature
and humidity conditions up to
90 degrees F, no more than 90% RH.
1.5 Design Conditions
Systems shall be rated NRC (
) in accordance with ASTM C423 and
STC ( ) in accordance with AMA
1-II as tested by an independent
agency.
Part 2: Products
2.1 ECLIPSE
ECLIPSE mineral fiber ceiling
(panels) (FIRECODE panels,
approved for UL Design No. [
]) (tile) (FIRECODE tile, approved
for UL Design No. [ ]), by USG
Interiors, Inc., ( ) item number,
( ) color, ( ) size, ( ) edge,
NRC range ( ), STC range ( ).
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
2.2 ORION
ORION (210) (220) (270) mineral
fiber ceiling (panels) (FIRECODE
panels, approved for UL Design
No. [ ]), by USG Interiors, Inc.,
having laminated (Nubby fabric)
(vinyl) surface, ( )pattern, (
) item number, ( ) color, (
) size, ( ) edge, NRC range ( ), STC
range ( ).
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
2.3 ACOUSTONE
ACOUSTONE molded mineral fiber
(tile) (FIRECODE tile, approved
for UL Design No. [ ]) (panels)
(FIRECODE panels, approved for
UL Design No. [ ]), by USG Interiors,
Inc., free of mechanical
perforations, non-breathing
factory-applied foil backing ( )
pattern, ( ) item number, (
) color, ( ) size, ( ) edge, NRC
range ( ), STC range ( ).
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
2.4 AURATONE
AURATONE water-felted mineral
fiber (tile) (FIRECODE tile,
approved for UL Design No. [
]), (panels), (FIRECODE panels,
approved for UL Design No. [
]), by USG Interiors, Inc., (
)pattern, ( ) item number, (
) color, ( ) size, ( ) edge, NRC
range ( ), STC range ( ).
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
2.5 Special-Function
AURATONE (FIRECODE) special
function products by USG Interiors,
Inc., ( ) item number, ( ) color,
( ) size, ( ) edge, NRC range
( ), STC range ( ):
2.5.1 Abuse Resistant
FIRECODE panels, approved for
UL Design No. ( ), (ROCK FACE
pattern) (IMPACTION System).
2.5.2 Environment-Resistant
FIRECODE panels, approved for
UL Design No. ( ), (CERAMIC
HERITAGE) (METAL FACE [perforated]
[unperforated]) (SUPER-E
[perforated] [unperforated])
pattern.
2.5.3 Sanitary Condition
FIRECODE panels, approved for
UL Design No. ( ), CLEAN ROOM
pattern (Class 100, unperforated)
(Class 10,000-100,000,
perforated)
2.6 Gypsum Ceiling Panels
FIRECODE core Gypsum Lay-in
panels by USG Interiors, Inc., ( )
item number, unit facing (white
vinyl stipple pattern)
(unfinished paper) (painted),
( ) size, square edge.
2.7 Extra Sound Absorbent
PREMIER glass fiber substrate
panels by USG Interiors, Inc., ( )
item number, ( ) size, ( ) edge,
(Nubby) (Twill) (Kapok)
laminated facing, ( ) NRC, in
white color.
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
2.8 Fire Rating Accessories
By USG Interiors, Inc.
2.8.1 THERMAFIBER Light Fixture
Protection, (box) (tent)
(vented-box) type assembly approved
for UL Design No. ( ), of
semi-rigid spun mineral-fiber
board, nom. 1 1/4" thick , unfaced
and unbacked.
2.8.2 THERMAFIBER Fire Protection
Batts
Approved light-fixture protection
field-fabricated to UL Design
No. ( ) requirements from flexible
spun mineral-fiber mats, 1
1/2" thick, unfaced and
unbacked.
2.9 Sound Rating Accessories
THERMAFIBER SAFB insulation
of spun mineral-fiber, semi-rigid
mats with square-cut edges,
unfaced and unbacked, by USG
Interiors, Inc.:
2.9.1 Installed Over Partition
Stud Cavities
(1 1/2) (3)" x 2' x 4'
sizes, (single-layer on entire ceiling)
(double-layer on ceiling in
8'-wide strips centered on
partitions).
2.9.2 Installed as Plenum Barriers
3" x 2' x 4' sizes, of
(vertical) (inverted "T") (tent) type.
2.9.3 Overlaid on Ceiling
1 1/2" x 2' x 4' sizes,
(single-layer on entire ceiling)
(double-layer on ceiling in
strips extending 4' to each side of
partitions).
2.10 DONN Suspension Systems
By USG Interiors, Inc.:
2.10.1 Fire-Rated Concealed
Suspension
Meeting ASTM C635. (DX tee
system with splines that engage
adjacent tile.) (RIGID X tee
system with screw-applied gypsum
board.)
2.10.2 Fire-Rated Exposed Suspension
(DXL) (CENTRICITEE DXLT) (FINELINE
DXLF) (Environmental ZXLA
Grid system), per UL Design
No. ( ), all main and cross tees
meeting "intermediate"
or "heavy" duty classifications of ASTM
C635, ( ) color.
2.10.3 Class A Exposed Suspension
Meeting "intermediate"
or "heavy" duty main tee structural
standards of ASTM C635, ( )
color.
2.10.4 Corrosion-Resistant Exposed
Suspension
(DXLA) (Highline) (Environmental
ZXA Grid System) (Environmental
AX Grid System), ( ) color.
2.10.5 Narrow 1/8" Reveal
Geometrix Suspension
(GTX) accepts Geometrix or Fine
Fissured panels, ( ) color.
Note to specifier: Refer to
product descriptions for pattern,
item number, color, size, edge,
NRC and STC options.
Part 3: Execution
3.1 Suspended
Install acoustical material
and suspension system, including
necessary hangers, grillage,
splines and other supporting
hardware, in accordance with
ASTM C636, all code requirements
and sound industry practice
(such as CISCA guidelines).
3.2 Adhesive
Apply tile with an adhesive
manufactured specifically for this
purpose, in accordance with
manufacturer's directions, and/or as
follows. Brush off any loose
dust from tile back surfaces and
prime them where adhesive is
to be applied. This lays down any
residual dust to assure good
adhesion. Prime only a 2-3" circle
near each corner by buttering
a very thin coat of adhesive with
trowel blade at a 45 degree
angle. Then apply a walnut-sized
dab of adhesive to each of the
4 circles and press tile firmly
in place. Insert splines in
kerfs at corners of units. Foil-
backed ACOUSTONE tile should
not be adhesively applied.
3.3 ACOUSTONE "F"
Fissured Tile
Intermix tile from 4 or more
cartons to obtain uniform
distribution of fissure variations.
3.4 The ILLUSION Ceiling Series
Exposed Grid Suspension
Install inverted tee, direct-hung,
exposed surface system having
low-gloss finish and color of
the ILLUSION Ceiling Series.
System should meet "intermediate"
or better structural standards
of ASTM C635.
3.5 Fire-Rated Suspension
Install suspension per UL Design
No. ( ) and ASTM C636.
3.6 Light Fixture Protection
Install light fixture protection
and necessary hangers and ties
in accordance with UL Design
No. ( ) and ASTM C636.
3.7 Ceiling Sound Insulation
Lay blankets flat on ceiling
panels and tightly fit around all
grillage, hangers and other
vertical penetrations:
3.7.1 Single-Layer
Over entire ceiling.
3.7.2 Double-Layer
3" total thickness, over
that part of ceiling extending 48" on
each side of all partitions.
3.8 Plenum Sound Barriers
Install THERMAFIBER blankets;
cut vertical blankets as necessary
to clear plenum obstructions:
3.8.1 Upside Down "T"
Lay horizontal blankets on ceiling
grid extending 1' on either
side of partition centerline
and lean vertical blankets against
hanger wires for support.
3.8.2 Vertical Barrier
Lean vertical blankets against
hanger wires for support over
partition centerline.
3.8.3 Tent Barrier
Lean blankets together over
partition centerline and wire or
clip tops together.
