Curtain Wall Insulation (THERMAFIBER). CSI 3-Part Specifications.

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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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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