SECTION 07200-A
CURTAIN WALL INSULATION
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Use this guide specification to specify THERMAFIBER
Brand Curtain
Wall Insulation systems, Including Safing Insulation
and smoke
sealing behind exterior wall panels of aluminum,
granite,
spandrel glass and other curtain wall materials.
Review a copy of
USG Interiors publication SA-707 before editing specification.
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PART 1 - GENERAL
1.01 GENERAL DOCUMENTS:
General and Supplementary Conditions of Contract
as well as
Drawings and general provisions of Contract and Division
1
Specification section, apply to work of this section.
1.02 DESCRIPTION OF WORK:
Extent of curtain wall insulation work is shown on
drawings.
Types of work included are:
Exterior curtain wall insulation for thermal and
fire
containment applications
Safing insulation from edge of concrete slab to
back
of curtain wall panel
Smoke seal systems at exterior wall envelope.
Coordinate with all trades required to install work
on or
into work of this section.
Related Work Specified Elsewhere
Concrete - Section 03310
Insulation - Section 07200
Metal Fabrications - Section 05500
Glazed Aluminum Curtain Walls - Section 08920
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Include additional related sections as pertinent.
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1.03 QUALITY ASSURANCE:
Standards:
ASTM C-612 Standard Specification for Mineral
Fiber
Block and Board Thermal Insulation
ASTM C-665 Standard Specification for Mineral-Fiber
Blanket Insulation for Light Frame
Construction and Manufactured Housing
ASTM C-553 Standard Specification for Mineral
Fiber
Blanket and Felt Insulation (Industrial
Type)
Federal Specification HH-I-521F Insulation Blankets,
Thermal (Mineral Fiber, For Ambient Temperatures)
Federal Specification HH-I-558B Insulation, Blocks,
Boards, Blankets, Felts, Sleeving (Pipe and Tube
Covering), and Pipe Fitting Covering, Thermal (Mineral
Fiber, Industrial Type)
Fire-Containment Rating: Where fire containment
rating is
required, provide materials and installation which
are
identical with those of applicable assemblies tested
under
the fire exposure conditions of ASTM E-119.
Unit Responsibility: Obtain curtain wall insulation,
safing
insulation materials and smoke seal compound from
a single
manufacturer.
1.04 SUBMITTALS:
Product Data: Submit manufacturer's product specifications
and installation instructions for systems used.
Certificates: Submit certification of compliance
with fire
containment requirements indicated.
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Copies of actual fire test reports can be specified
for
submittal.
Include requirement for shop drawings if necessary.
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1.05 DELIVERY, STORAGE AND HANDLING:
Handling: Handle materials to avoid damage. When
installing or otherwise handling these insulation
products,
wear a NIOSH approved dust mask or respirator, gloves
and
long sleeved, loose fitting clothing closed at the
neck and
wrists. Wear safety glasses when installing.
Delivery: Deliver materials to the jobsite in original
packages, containers, or bundles bearing the brand
name and
manufacturer's identification.
Storage: Store materials in dry locations with adequate
ventilation, free from water, and in such a manner
to permit
easy access for inspection and handling.
1.06 PROJECT CONDITIONS:
Protect adjacent work of other trades from damage.
Clean
substrates of substances harmful to insulation or
vapor
retarders, including removal of projections which
might
puncture vapor retarders. In cold weather during
installation of smoke seal compound, temperatures
within the
building shall be maintained above 55F. Provide
adequate
ventilation to carry-off excess moisture.
PART 2 - PRODUCTS
2.01 MANUFACTURER:
Subject to compliance with requirements, provide
Curtain
Wall and Safing Insulation and all related components,
as
manufactured or supplied by USG Interiors or United
States
Gypsum Co.
2.02 MATERIALS:
A. Curtain Wall Insulation:
THERMAFIBER Brand Mineral Fiber Curtain Wall
Insulation, (CW-40) (CW-70) (CW-90), ( ) thick,
( )
wide. ( ) long, (regular) (dark) (unfaced) (FSP,
scrim-poly reinforced foil facing vapor retarder).
B. Safing Insulation:
THERMAFIBER Brand Mineral Fiber Safing Insulation,
regular color, (unfaced) (foil-faced).
C. Safing Clips: Z-shaped, galvanized steel.
D. Impaling pins and clinch shields: as required
for
insulation thickness, mechanical attachment
type only - no adhesive application allowed.
E. Support Angles: (1/8" x 1-1/4" x 1-1/4",
aluminum)
(1-1/2" x 1-1/2", 20 ga. galvanized steel)
F. Sealing Compound: THERMAFIBER Brand Smoke Seal
Compound,
G. Vapor retarder tape: Compatible with foil facing
with
comparable perm rating.
PART 3 EXECUTION:
3.01 CURTAIN WALL INSULATION:
Install a horizontal curtain wall support angle between
mullions, located approximately one-inch above the
floor and
fastened to the mullions. Mechanically attach Curtain
Wall
Insulation to inside of spandrel panels with appropriate
pins or screws and clinch shields spaced not more
than 12"
on center. Install insulation across the face of
aluminum
mullions and secure thereto.
Insulation may be recessed by first installing support
angles to the mullion sides and securing the insulation
to
the angles. Provide one-inch thick by six-inch
wide CW-90
mullion cover over the mullion face.
3.02 SAFING INSULATION:
Install THERMAFIBER Brand Safing Insulation of proper
size
in safe-off area between THERMAFIBER Curtain Wall
Insulation
and floor slabs, on safing clips spaced 24"
o.c. maximum,
leaving no voids. Cut safing insulation 1/2"
wider than
opening to insure compression fit. Fasten safing
clips to
slab with power activated fasteners or other positive
fastening devices when installing the Safing Insulation
from
the bottom of the slab.
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When safe-off area is less than 2" wide safing
insulation may be
friction fitted and topped with 1" of smoke
seal compound in lieu
of clips.
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3.03 SMOKE SEAL SYSTEM:
Utilize foil faced Curtain Wall and Safing Insulation.
Apply
vapor retarder tape over all joints in Curtain Wall
Insulation and where Curtain Wall Insulation abuts
framing.
Apply THERMAFIBER Smoke Seal Compound at junction
of Safing
Insulation and Curtain Wall Insulation, at junction
of
Safing Insulation and floor slab, and at joints in
Safing
Insulation.
3.04 VAPOR RETARDER INSTALLATION:
Seal all joints in Curtain Wall Insulation with
vapor
retarder tape. Apply vapor retarder tape at intersection
of
Curtain Wall Insulation with curtain wall framing,
floor
slab, and similar intersections to insure a vapor
tight
seal. Repair all tears in curtain wall insulation
foil
facing with vapor retarder tape.
3.05 CLEAN-UP:
At the completion of curtain wall and safing insulation
work
remove all related rubbish, excess material, scaffolding,
tools and equipment from the site. Dispose of waste
material in a manner approved by applicable jurisdictions.
End of Section 07200A
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Copyright 1991 by U.S. Gypsum Co. and USG Interiors
A limited license is extended to qualified design
professionals
to duplicate and print this guide specification for
the purpose
of incorporating products manufactured by U.S. Gypsum
Co. or USG
Interiors into a construction specification or purchase
order.
Notice: We shall not be liable for incidental and
consequential
damages, directly or indirectly sustained, nor for
any loss
caused by application of these goods not in accordance
with
current printed instructions or for other than the
intended use.
Our liability is expressly limited to replacement
of defective
goods. Any claim shall be deemed waived unless made
in writing
to us within thirty (30) days from date it was or
reasonably
should have been discovered.
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