Drywall Systems (H-SPLINE) (10/88) Proprietary. CSI 3-Part Specifications.

SECTION 09264 - USG H-SPLINE DRYWALL SYSTEMS(10/88)

This section is a proprietary guide specification for high

performance sound control and fire rated partition systems from

United States Gypsum Company. These systems utilize USG H-Spline

metal framing, gypsum liner panels, SHEETROCK gypsum panels, and

THERMAFIBER insulation to create partitions and wall furring which

are highly effective in isolating unwanted sound, including low

frequency noise. Sound ratings with up to STC/MTC 69/62 are

available.

For additional information, refer to United States Gypsum Company

Product Folder No. SA-922 or contact a USG representative.

This section conforms to the general style and format of MASTERSPEC

Specifications, a product of the American Institute of Architects.

While conforming to the general style and format of MASTERSPEC,

United States Gypsum Company is solely responsible for the quality

and accuracy of the technical content of these suggested guide

specifications. Specifiers must review manufacturer's current

product data, determine the suitability of proposed products and

systems to project conditions, and edit guide specifications to

suit project requirements.

Neither the American Institute of Architects nor the American

Institute of Architects Foundation endorses or recommends use of

this product. It is not the practice of the Institute to test,

review, or endorse any manufacturer's product or to determine the

accuracy of technical claims.

PRODUCT MASTERSPEC

USG STEEL H-SPLINE DRYWALL SYSTEMS09264 - #SECTION 09264 - USG H-SPLINE DRYWALL SYSTEMS

PART 1 - GENERAL

RELATED DOCUMENTS

Drawings and general provisions of Contract, including G-eneral and

Supplementary Conditions and Division 1 Specification Sections, apply

to this Section.

SUMMARY

This section includes high-performance sound attenuation and fire

resistive drywall systems with H-Spline framing, including:

H-Spline Double Wall Partitions.

H-Spline furring wall.

IF PARTITIONS ARE NOT FIRE-RESISTANCE RATED,

DELETE "AND FIRE RESISTIVE" FROM PARAGRAPH

ABOVE AND DELETE PARAGRAPH BELOW.

PENETRATIONS THROUGH SOUND WALLS SHOULD BE

AVOIDED WHENEVER POSSIBLE. IF PENETRATIONS

ARE NOT ACCEPTABLE, DELETE PARAGRAPH BELOW

AND RETAIN ARTICLE - "PROJECT CONDITIONS".

FOR ADDITIONAL INFORMATION, SEE USG PRODUCT

LITERATURE FOR THERMAFIBER FIRE SAFING

INSULATION AND SMOKE-STOP SYSTEMS.

Fire stop insulation and sealants, required at penetrations through

fire resistive partitions, are specified in Division 7 Section

"Firestopping".

IF PROJECT INCLUDES OTHER TYPES OF DRYWALL

CONSTRUCTION, IT WILL TYPICALLY BE

ACCEPTABLE TO USE SAME TRIM AND JOINT

TREATMENT FOR SOUND WALLS. SEE USG

LITERATURE FOR COMPATIBLE PRODUCTS FROM

UNITED STATES GYPSUM COMPANY.

Drywall trim and joint treatment and other types of drywall wall

systems are specified in Division 9 Section "Gypsum Drywall."

DESIGN ADJACENT CONSTRUCTION TO PREVENT

SOUND TRANSMISSION THROUGH FLANKING PATHWAYS

OR STRUCTURAL TRANSMISSION.

Preparation of adjacent construction to receive sound wall systems

and maintain continuity of sound attenuation is specified in other

sections.

SYSTEMS DESCRIPTION

MODIFY BELOW EXAMPLE TO PROVIDE PERFORMANCE

LEVELS REQUIRED BY PROJECT. EDIT

SPECIFICATION TO COMPLY WITH REQUIREMENTS

OF TESTED AND APPROVED DESIGNS. SEE CURRENT

USG PRODUCT LITERATURE FOR AVAILABLE RATINGS

AND SYSTEMS.

Double Wall Partitions: Construct partition in accordance with

require-ments of tested and approved designs to obtain the following:

Sound Rating: STC/MTC not less than 60/57; Riverbanks Acoustical

Laboratories Test No. TL-83-313.

Fire-Resistance Rating: 3 hour minimum, ASTM E 119, UL Design

No. U441.

OMIT BELOW DESCRIPTION IF PARTITION IS

ADEQUATELY DETAILED ON DRAWINGS. SEE

DRAWING COORDINATION SHEETS.

Description: Construct partition as follows:

Wall Thickness: 6-1/2 inches

Cavity Width:3-1/2 inches.

Liner Panels: One on each side of wall, applied to angle

runners.

Face Panels: One on each side of wall, installed over damping

bead of sealant.

Insulation: 3 inch sound insulation blankets.

CONTACT USG FOR INFORMATION ON FURRING

SYSTEM PERFORMANCE. MODIFY SPECIFICATION

BELOW IF FURRING SYSTEM REQUIRES THERMAL

INSULATION, VAPOR RETARDER, OR HIGHER

ACOUSTICAL RESISTANCE.

Furring Wall System: Construct furring as follows:

Cavity Width: Shown on Drawings.

Liner Panel: Applied to angle runners.

Face Panel: Applied over liner panel.

DEFINITIONS

STC/MTC: STC and MTC are ratings of a partition's sound attenuation

performance. Partitions shall be tested by an independent acoustical

laboratory in accordance with ASTM E 90 - Laboratory Measurement of

Sound Transmission Loss of Building Partitions. STC shall be

determined in accordance with ASTM E 413 - Determination of Sound

Transmission Class. MTC shall be determined in accordance with

criteria published by United States Gypsum Company and shall describe

partition's attenuation of low-frequency noise from music, machinery,

or mechanical equipment.

SUBMITTALS

Product Data: Submit manufacturer's data for each type of product

and system specified, including details of construction, dimensions

of components, materials, profiles, finishes and installation

instructions.

Acoustical Test Report: Submit copy of test report from an

independent laboratory indicating that wall system complies with

required acoustical ratings.

DELETE BELOW IF FIRE-RESISTANCE RATING IS

NOT REQUIRED.

Fire Test Report: Submit copy of test report from an independent

laboratory indicating that wall system complies with required fire-

resistance ratings.

QUALITY ASSURANCE

Installer Qualifications: Engage an Installer to perform work of

this section who has successfully completed acoustically rated work

similar in character to that indicated for Project.

Single Source Responsibility: All components of wall systems shall

be as manufactured or as directed by a single manufacturer.

DELETE BELOW IF WORK OF THIS SEC-TION IS NOT

EXTENSIVE OR COMPLEX ENOUGH TO JUSTIFY

EXPENSE OF CONFERENCE.

Pre-Installation Conference: Conduct conference at Project site in

accordance with requirements of Division 1 Section "Project

Meetings".

Attendance: Meeting shall be attended by Contractor,

installer, manufacturer's technical representative, and other sub-

contractors, suppliers, and fabricators who are affected by the

work of this Section. Notify the Owner, Architect/Engineer, and

Acoustical Consultant one week prior to scheduled meeting date.

Purpose: Coordinate work affecting installation, appearance, and

performance of sound wall systems. Discuss requirements for

maintaining acoustical and fire resistive performance through

adjacent flanking construction and at intersections and

penetrations of wall systems with other work.

DELIVERY, STORAGE, AND HANDLING

Deliver materials in their original, unopened packages. Store in an

enclosed shelter providing protection from damage and exposure to

elements. Protect joint compound from freezing. Remove damaged or

deteriorated materials from the site.

PROJECT CONDITIONS

IF JOINT FINISHING IS SPECIFIED IN ANOTHER

SECTION, OMIT FOLLOWING PARAGRAPH.

Cold Weather: During and after drywall joint finishing, maintain

temperature within building above 55 deg F (13 deg C) and provide

adequate ventilation to carry out excess moisture.

Penetrations: Do not permit openings in or penetrations of sound

walls except as shown on drawings or accepted in writing by

Architect/Engineer.

PART 2 - PRODUCTS

MANUFACTURER

REFER TO USG SYSTEMS FOLDER SA-922 FOR

DESCRIPTION OF H-SPLINE WALL SYSTEMS.

Subject to compliance with requirements, provide H-Spline Wall

Systems manufactured by United States Gypsum Company (USG).

MATERIALS

Framing: ASTM A 446 steel, hot dipped galvanized to ASTM A 525 G60.

A "CH" STUD/SPLINE IS ALSO AVAILABLE FOR

USE WHEN HIGHER PARTITIONS ARE REQUIRED.

CONTACT USG FOR ADDITIONAL INFORMATION.

H-Splines: USG 100HS20, 1 inch deep x 1-3/8 inches wide flanges

x 20-gage.

Angle Runners: USG Metal Angles, 1-3/8 inches x 7/8 inch x 24-

gage.

INDICATE REQUIRED STUD SIZE ON DRAWINGS.

Studs: USG SJ20, 20-gage, "C"-shaped studs with stiffened

flanges.

Corner Framing Angles: USG Metal Angles, 2-1/2 inches x 2-1/2

inches x 24-gage.

Liner Panels: USG Gypsum Liner Panels; fire-resistant gypsum core,

beveled edge, 1 inch thick x 24 inches wide, ASTM C 442.

Face Panels: USG SHEETROCK Brand FIRECODE "C" gypsum panels, 1/2

inch thick x 48 inches wide.

Provide water resistant USG SHEETROCK Brand W/R FIRECODE "C"

gypsum panels at bathtubs, showers, laundries, and other high

moisture areas.

Sound Insulation: THERMAFIBER Sound Attenuation Fire Blankets

(SAFB); unfaced, semi-rigid spun mineral fiber mat, 2.5 pcf minimum

density, 2000 deg F meltpoint; 24 x 48 inches, provide total

thickness indicated with no layer being less than 2 inches thick;

ASTM C 665, Type 1.

Acoustical Sealant: USG Acoustical Sealant. Sealant shall be type

used in sound attenuation and fire resistance tests and shall remain

resilient for life of installation.

Screws: USG Drywall Screws, self-drilling and self-tapping, bugle

head unless otherwise required. Provide Type S screws, ASTM C 1002,

for steel up to and including 20-gage; provide Type S-12 screws, ASTM

C 954, for steel over 20-gage.

Trim and Joint Treatment: Provide as follows:

Corner Bead: USG DUR-A-BEAD No. 103 galvanized steel corner

reinforce-ment, 1-1/4 x 1-1/4 inches.

Metal Trim: USG Metal Trim No. 200-A or No. 401, galvanized

steel.

Control Joint: USG Control Joint No. 093, roll-formed zinc.

Staples: 9/16 inch galvanized staples.

Joint Compound: USG Ready-Mixed PLUS 3 Total Joint Compound or

USG Ready-Mixed Joint Compound-Taping and USG Ready-Mixed Joint

Compound-Topping.

OMIT BELOW IF CERAMIC TILE IS NOT

APPLICABLE.

At walls with ceramic tile finishes, use DURABOND 45 or 90

joint compound.

Reinforcing Tape: USG PERF-A-TAPE reinforcing tape.

IF TRIM AND JOINT TREATMENT ARE SPECIFIED

IN DIVISION 9 SECTION "GYPSUM DRYWALL", OMIT

ABOVE AND RETAIN BELOW.

Trim and Joint Treatment: Specified in Division 9 section "Gypsum

Drywall".

PART 3 - EXECUTION

GENERAL

Comply with manufacturer's printed installation instructions for

products and applications indicated, except when more stringent

requirements apply.

Conform to construction requirements of tested assemblies used to

demonstrate required sound attenuation and fire resistance.

INSPECTION

Inspect adjacent construction to which walls will attach for

conditions which could contribute to loss of sound attenuation.

Notify Architect/Engineer and correct conditions before proceeding.

INSTALLATION

Angle Runners: Lay out walls according to the drawings. Accurately

align and securely attach runners to floor and structure above with

suitable fasteners located 2 inches from each end and spaced 24

inches o.c. maximum, long leg vertical. Space runners as required

to provide indicated wall thickness and cavity width.

EDIT BELOW IF SYSTEM DOESN'T REQUIRE SECOND

LAYER.

Liner Panels: Cut liner panels to length to accurately fit between

floor and structure above. Install liner panels vertically. Screw

liner panels to top and bottom angle runners. Locate screws at the

center and 3 inches from each edge of liner panel, 6 screws per liner

panel. Screws shall be 1-7/8 inches long for first layer, and 2-5/8

inches long for second layer.

H-Spline: Install H-Splines between adjacent panels. Cut H-Splines

4 inches shorter than panels. Friction fit onto panels. Locate flat

flange side facing toward the finish side. Center H-Spline between

runners, with 1/2 inch minimum gap between H-spline and runners.

Sound Insulation: Install insulation blankets horizontally in cavity

between the two planes of liner panels. Butt ends closely and

stagger vertical joints. Fill all voids.

FOR ACOUSTIC DOOR AND WINDOW DETAILS,

CONSULT AN ACOUSTICAL SPECIALIST.

Door Frames: Install studs at door frames and other wall openings.

Insert studs between angle runners and screw-attach at top and bottom

through runner flanges. Anchor door frame to floor and studs as

specified in Division 8. Engage head of door frame to runners and

install liner panels above door.

IF TWO LAYERS OF LINER PANELS ARE REQUIRED

FOR HIGHER STC/MTC RATINGS, SPECIFY LONGER

SCREWS IN FOLLOWING PARAGRAPH. CONTACT USG

FOR DETAILS.

Corners: Form wall intersections as detailed. Attach corner framing

angles to liner panels with 1-7/8 inches long screws at 12 inches

o.c. maximum.

DAMPING BEAD IS REQUIRED FOR OPTIMUM SOUND

ATTENUATION, OMIT BELOW IF NOT REQUIRED FOR

SOUND RATING OF SELECTED WALL SYSTEM.

Damping Bead: Apply a 1/2 inch continuous damping bead of acoustical

sealant along vertical centerline of each liner panel. Impact face

panel into damping bead for good bond, hit with rubber mallet or

short 2 x 4 blocking and hammer.

IF TWO LAYERS OF LINER PANELS ARE REQUIRED

FOR HIGHER STC/MTC RATINGS, SPECIFY LONGER

SCREWS IN FOLLOWING PARAGRAPH.

Face Panels: Cut gypsum face panels to length 1/2 inch shorter than

floor/ceiling height. Apply face panels vertically with 1/4 inch gap

at top, bottom, and adjacent construction. Center vertical joints

over H-Splines. Screw face panels to H-Splines with 1 inch long

screws at 12 inches o.c., staggered at abutting edges. Attach to

runners at top and bottom with 2-1/4 inches long screws at 12 inches

o.c.. Locate screws 3/8 inch minimum from panel edges and power

drive screws to form a 1/32 inch deep dimple in panel surface.

EDIT BELOW IF PENETRATIONS ARE NOT PERMITTED

OR IF FIRESTOPPING OF PENETRATIONS IS

SPECIFIED IN ANOTHER SECTION.

Acoustical Sealant: Completely seal around perimeter of and

penetrations through sound walls, including: intersections with

walls, columns, and other adjacent construction; gaps around face

panels at floor, structure above, door frames, and other openings;

and at cutouts for electrical boxes, pipes and plumbing, and other

penetrations. Cut panels accurately to fit penetrations.

Wall Hung Units: Secure cabinets and other wall hung units to H-

Splines, or as otherwise detailed, with fasteners of appropriate

type.

Trim and Joint Treatment: Install as follows:

Corner Bead: Reinforce outside corners with corner bead. Attach

with screws, staples, or clinch-on tool at 9 inches o.c. along

each flange.

Metal Trim: Install at face panel edges terminating at adjacent

construction. Attach with screws or staples at 9 inches o.c.

Control Joints: Do not run liner panels or face panels

continuously through control joints; provide 1/2 inch maximum

break in panels and install double framing with vertical runner

angles at joints in panels. Apply a bead of acoustical sealant

between liner and face panels in joints, then attach control joint

to face panels with staples at 6 inches o.c. along each flange.

Install at following locations:

EDIT LIST BELOW TO SUIT PROJECT

REQUIREMENTS.

Walls of dissimilar construction meet and remain in the same

plane.

Expansion or control joints occur in building structure.

Wall runs exceed 30 feet.

Other locations as shown on drawings.

Joint System: Finish face panel joints and inside corners with

joint compound and reinforcing tape according to manufacturer's

instructions. Spot finish exposed fasteners and finish corner

bead, metal trim, and control joints with two coats of joint

compound feathered out and sanded smooth. Finish joints and

fasteners with minimum of three coats of joint compound to provide

surface suitably treated for finishes specified in other sections.

OMIT BELOW IF TILE IS NOT APPLICABLE.

In areas to be tiled, treat fastener heads with type of

compound specified for tile finish. Fill tapered edges in

gypsum panel with compound, embed reinforcement firmly and wipe

off excess compound. Follow immediately with a second coat

over the taping coat, being careful not to crown the joint.

Fold and embed tape properly in all interior angles to provide

a true angle. Prior to tile erection, seal cut panel edges of

all openings around pipes, fittings, and fixtures with thinned

tile adhesive.

IF TRIM AND JOINT TREATMENT ARE SPECIFIED

IN DIVISION 9 SECTION "GYPSUM DRYWALL", OMIT

ABOVE AND RETAIN BELOW.

Trim and Joint Treatment: Installation of trim and finishing of

joints and fasteners are specified elsewhere in Division 9.

END OF SECTION 09264

PRODUCT MASTERSPEC - EVALUATIONS

USG H-SPLINE DRYWALL SYSTEMS09264 - E#SECTION 09264 - USG H-SPLINE DRYWALL SYSTEMS

EVALUATION SHEETS

USG TECHNICAL SERVICES DEPARTMENT:

Eastern Construction Products Region

P.O. Box 16511, Atlanta, GA 30321

1000 Abernathy Road N.E., Suite 500, Atlanta, GA 30328-5603

(404) 393-0770

Northeast Office

555 White Plains Road, Tarrytown, NY 10591-5155

(914) 332-0800

Central Construction Products Region

1 South Wacker Drive, Suite 2000, Chicago, IL 60680-4616

P.O. Box 806278, Chicago, IL 60680-4124

(312) 606-4128

Western Construction Products Region

P.O. Box 2452, Los Angeles, CA 90054

620 North Brand Boulevard, Glendale, CA 91203-1212

(818) 956-1882

Architectural & Construction Services Department

101 South Wacker Drive, Chicago, IL 60606-4385

(312) 606-3739

USG PRODUCT LITERATURE:

Product literature is available from United States Gypsum Company

Representatives; contact USG for current information.

System Folder SA-922, USG H-Spline Wall Systems, Sweet's General

Building and Renovation File 09250/USGF.

Gypsum Construction Handbook, 3rd edition.

Computer Diskettes with USG guide specifications.

REFERENCED STANDARDS:

Standards referenced in the text of this section are listed below

according to source, designation, and title. Revision of standards

occur periodically and may happen before this section is updated in

the future. Refer to Division 1 section "Definitions and Standards"

for addresses and telephone numbers.

American Society for Testing and Materials (ASTM):

A 446Specification for Steel Sheet, Zinc-Coated

(Galvanized) by the Hot-Dip Process, Structural

(Physical) Quality.

A 525Specification for General Requirements for Steel

Sheet, Zinc-Coated (Galvanized) by the Hot-Dip

Process.

C 442Specification for Gypsum Backing Board and Coreboard.

C 665Specification for Mineral-Fiber Blanket Thermal

Insulation for Light Frame Construction and

Manufactured Housing.

C 954Specification for Steel Drill Screws for the

Application of Gypsum Board to Steel Studs for 0.033

in. to 0.112 in. in Thickness.

C 1002Specification for Steel Drill Screws for the

Application of Gypsum Board.

E 90Method for Laboratory Measurement of Airborne Sound

Transmission Loss of Building Partitions.

E 119Methods of Fire Tests of Building Construction and

Materials.

E 413Classification for Determination of Sound Transmission

Class.

Underwriters Laboratory, Inc. (UL):

Fire Resistance Directory.

NOTICES:

Trademarks: The following trademarks used herein are owned by USG

Corporation or its subsidiaries: DUR-A-BEAD, DURABOND, FIRECODE,

PERF-A-TAPE, PLUS 3, RC-1, SHEETROCK, THERMAFIBER, and USG. S and

S-12 are registered trademarks of ITW Buildex.

Notice: USG Corporation and its subsidiaries 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 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.

Note: All products described here may not be available in all

geographic markets. Consult your local sales office or

representative for information.

PRODUCT MASTERSPEC - DRAWING COORD

USG H-SPLINE DRYWALL SYSTEMS09264 - D#SECTION 09264 - USG H-SPLINE DRYWALL SYSTEMS

DRAWING COORDINATION

In addition to general MASTERSPEC Instructions for coordinating

drawings with specifications, it is suggested that drawings indicate

the following information related to this section:

Locations and dimensions of areas to receive H-Spline gypsum

drywall sound wall and furring systems and extent of fire and

sound rated construction.

Typical details and description of partition construction

including partition and cavity thickness; stud size and type,

insulation thickness, type of gypsum board face panels on each

side. Indicate whether one or two layers of liner panels are

required.

Locations and details of penetrations, control joints, and other

special details.

Coordination with related work.

Suggested Details: Additional details are shown in USG product

literature listed on Evaluation Sheets. Technical assistance in

preparing details is also available from USG Representatives.

PRODUCT MASTERSPEC - SPEC COORD

USG H-SPLINE DRYWALL SYSTEMS09264 - S#SECTION 09264 - USG H-SPLINE DRYWALL SYSTEMS

SPECIFICATION COORDINATION

The following sections of the specifications have specific

requirements which must be coordinated with this Section.

-Division 7 Section "Firestopping": Specify fire safing.

-Division 9 Section "Gypsum Drywall": Coordinate requirements for

gypsum board finishes and related materials.