References in Blue Are General Indicators to the Specifier

PRELIMINARY DRAFT Revised: August 20, 2012

General Specification Notes:

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References in blue are general indicators to the specifier.

References in red relate to fire-rated assemblies and/or code related issues, if not applicable, delete.

References in purple are indicators of a discontinued product.
SECTION 09290 / 09 29 00 Gypsum Board Assemblies
USG Drywall / / Product Specification

SECTION 09290 / 09 29 00

GYPSUM DRYWALL

PART 1 GENERAL

1.01 SUMMARY

A.  Section Includes:

1.  Metal stud wall framing.

2.  Shaftwall system.

3.  Interior gypsum drywall partitions, ceilings, and furring.

4.  Exterior gypsum sheathing.

5.  Exterior glass-mat gypsum sheathing

6.  Cementitious backer board.

7.  Acoustical insulation.

8.  Drywall trims accessories.

9.  Joint treatment and textures.

10.  Gypsum board primer.

B.  Related Sections:

1.  Section 05400 / 05 40 00 - Cold-Formed Metal Framing

2.  Section 06100 / 06 10 00 - Rough Carpentry

3.  Section 07210 / 07 21 00 - Building Insulation

4.  Section 07270 / 07 27 00 - Firestopping

5.  Section 09310 / 09 31 00 - Ceramic Tile

6.  Section 09510 / 09 51 00 – Acoustical Ceilings

7.  Section 09910 / 09 91 00 – Paints

C.  Allowances: Refer to Section 01020 / 01 02 00 for allowances involving Work of this Section.

1.02 REFERENCES

A.  American National Standards Institute (ANSI):

1.  ANSI 108.11, (1992) American National Standard for Interior Installation of Cementitious Backer Units.

2.  ANSI A118.9, (1992) Test Methods and Specifications for Cementitious Backer Units.

B.  American Society for Testing and Materials (ASTM):

1.  ASTM A446, Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process, Structural Steel Quality.

2.  ASTM A525, Standard Specification for General Requirements for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process.

3.  ASTM A1003, Standard Specification for Steel Sheet, Carbon, Metallic- and Nonmetallic-Coated for Cold-Formed Framing Members.

4.  ASTM E96, Standard Test Methods for Water Vapor Transmission of Materials.

5.  ASTM C473, Standard Test Methods for Physical Testing of Gypsum Panel Products.

6.  ASTM C475, Standard Specification for Joint Compound and Joint Tape for Finishing Gypsum Board.

7.  ASTM C514, Standard Specification for Nails for the Application of Gypsum Board.

8.  ASTM C557, Standard Specification for Adhesives for Fastening Gypsum Wallboard to Wood Framing.

9.  ASTM C635, Standard Specification for Metal Suspension Systems.

10.  ASTM C636, Recommended Practice for Installation of Metal Suspension Systems.

11.  ASTM C645, Standard Specification for Nonstructural Steel Framing Members.

12.  ASTM C665, Standard Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing.

13.  ASTM C754, Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products.

14.  ASTM C834, Standard Specification for Latex Sealants.

15.  ASTM C840, Standard Specification for Application and Finishing of Gypsum Board.

16.  ASTM C844, Specification of Application

17.  ASTM C919, Standard Practice for Use of Sealants in Acoustical Applications.

18.  ASTM C1002, Standard Specification for Steel Self-Piercing Tapping Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs.

19.  ASTM C1047, Standard Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base.

20.  ASTM C1177/C1177M Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing.

21.  ASTM C1178/C1178M Standard Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel.

22.  ASTM C1186, Standard Specification for Flat Non-Asbestos Fiber-Cement Sheets.

23.  ASTM C1264, Standard Specification for Sampling, Inspection, Rejection, Certification, Packaging, Marking, Shipping, Handling, and Storage of Gypsum Board.

24.  ASTM C1278/C1278M, Standard Specification for Fiber-Reinforced Gypsum Panel.

25.  ASTM C1280, Standard Specification for the Application of Gypsum Sheathing Board.

26.  ASTM C1396/C1396M, Standard Specification for Gypsum Board - Formerly:

a.  ASTM C36/C36M, Standard Specification for Gypsum Wallboard.

b.  ASTM C37/C37M Standard Specification for Gypsum Lath.

c.  ASTM C79M, Standard Specification for Treated Core and Nontreated Core Gypsum Sheathing Board.

d.  ASTM C442/C442M, Standard Specification for Gypsum Backing Board, Gypsum Coreboard, and Gypsum Shaft liner Board.

e.  ASTM C588/C588M. Standard Specification for Gypsum Base for Veneer Plasters

f.  ASTM C630/C630M, Standard Specification for Water-Resistant Gypsum Backing Board.

g.  ASTM C931/C931M, Standard Specification for Exterior Gypsum Soffit Board.

h.  ASTM C960/C960M, Standard Specification for Predecorated Gypsum Board.

i.  ASTM C1395/C1395M, Specification for Gypsum Ceiling Board.

27.  ASTM C1629/C1629M, Standard Classification for Abuse-Resistant Nondecorated Interior Gypsum Panel Products and Fiber-Reinforced Cement Panels

28.  ASTM D2394, Standard Method for Simulated Service Testing of Wood and Wood-Base Finish Flooring

29.  ASTM D4977, Standard Test Method for Granule Adhesion to Mineral Surfaced Roofing by Abrasion. (Modified for Surface Abrasion).

30.  ASTM D5420, Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimen by Means of a Striker Impacted by a Falling Weight (Gardner Impact).

31.  ASTM E84, Standard Test Method for Surface Burning Characteristics of Building Materials.

32.  ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements.

33.  ASTM E119, Standard Test Methods for Fire Tests of Building Construction and Materials.

34.  ASTM E330, Standard Test Method for Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

35.  ASTM E695, Standard Method for Measuring Relative Resistance of Wall, Floor, and Roof Construction to Impact Loading.

36.  CISCA – Ceilings & Interior Systems Construction Association. http://cisca.org/publications/

37.  CISCA Ceiling Systems Installation Handbook.

38.  GA – Gypsum Association. http://gypsum.org/securepubs/form.asp

a.  GA-201, Using Gypsum Board for Walls & Ceilings.

b.  GA-214, Recommended Levels of Gypsum Board Finish.

c.  GA-216, Application and Finishing of Gypsum Board.

d.  GA-232, Painting New Gypsum Board.

e.  GA-253, Application of Gypsum Sheathing.

f.  GA-600, Fire Resistance Design Manual

40.  UL - Underwriters Laboratories Fire Resistance Directory. http://www.ul.com/database/

41.  CONSTRUCTION HANDBOOK

1.03 SUBMITTALS

A.  General: Submit in accordance with Section 01300.

B.  Product Data:

C.  Submit manufacturer’s current descriptive literature showing installation and product specifications for each product specified. At time of installation – check for changes and updates prior to proceeding. Obtain proper approval of literature changes to proceed.

1.  Include data to indicate fire, sound, loading, and abrasive ratings of tested assemblies accepted by authorities having jurisdiction. Include Material Safety Data Sheets.

2.  Samples: Submit texture samples on minimum 4"x8" gypsum board for acceptance by Architect.

D.  LEED® Submittals:

1.  Product Data for Credit MR 4: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content.

a.  Include statement indicating costs for each product having recycled content.

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Include quality assurance requirements consistent with size and scope of project and extent of work of this section. Single-source manufacturer insures unit responsibility.

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1.04 QUALITY ASSURANCE

A.  Manufacturer Qualifications: Gypsum board, related joint treatments, textures, and gypsum board primer from single-source manufacturer.

B.  Installer Qualifications: Acceptable manufacturer with 5 years experience in performing the Work in this Section on projects of similar nature.

C.  Regulatory Requirements: Conform and provide gypsum board assemblies to meet applicable building code requirements for fire rated assemblies.

D.  Sound Transmission Characteristics: For gypsum board assemblies with STC ratings, materials and construction shall be identical to those of the assemblies tested and STC determined according to ASTM E90 and classified according to ASTM E413 by an independent testing agency.

E.  Jobsite Mockup:

1  Complete [___] lineal feet of each typical finished partition with a corner, typical door with/without sidelight, and [__] typical ceiling lights to simulate critical finished lighting conditions for acceptance by Architect.

2  Accepted jobsite mockup will be used as project standard.

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Use this article when a special code, regulation, or constructed assembly applies to the Project; delete this article if none apply. If a UL or Gypsum Association assembly design number is a requirement of the assembly or construction, include the assembly number in the following paragraph. UL assemblies are preferred by Code Officials because of third party inspection.

To find fire-rated assemblies online with STC data and details in CAD, Revit® and PDF visit www.usgdesignstudio.com and click on the “Walls” webpage.

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1.05 PERFORMANCE REQUIREMENTS

A.  Conform to applicable code for fire rated assemblies as follows:

1.  Fire Rated Partitions: Listed assembly by [UL] [GA File] No. [____].

2.  Fire Rated Ceiling and Soffits: Listed assembly by [UL] [GA File] No. [____].

3.  Fire Rated Structural Column Framing: Listed assembly by [UL] [GA File] No. [____].

4.  Fire Rated Structural Beam Framing: Listed assembly by [UL] [GA File] No. [____].

5.  Fire Rated Shaft Wall Requirements: [____] hour in accordance with UL listed assembly No. ____ [GA File No. ____].

B.  Sound Transmission Coefficient for Identified Interior Partitions: [_____] STC in accordance with ASTM E 90.

C.  Shaft Wall: Perform to the following:

1.  Air Pressure Within Shaft: [____] pounds per square foot with maximum mid-span deflection of [____] inches.

2.  Sound Transmission Coefficient: [____] STC in accordance with ASTM E90.

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Tall Walls

Partitions exceeding 30 feet in height are considered tall. When these taller than normal partition heights are required, consideration must be given to length restrictions for manufacturing and shipping steel studs, scaffolding, stud placement, and deflection.

Use double structural studs back-to-back 24 inches on center. Attach studs back to back with screws approximately 4 feet on center.

For 5-psf wind load, 20 gauge runner track is recommended. The fasteners should have a capacity of 300 pounds in single shear and bearing. For 10-psf wind load, 18 gauge runner track attached with fasteners with 400 pound single shear and bearing is recommended. See metal stud manufacturer for additional information.

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D.  Structural Performance: Provide non-load bearing metal framing capable of withstanding design loads within limits indicated:

1.  Design Loads: [Specify design loads applicable to project requirements.].

2.  Deflection Limits: [Specify deflection limits applicable to project requirements.].

3.  Vertical Movement: [Specify framing member movement limits applicable to project requirements.].

4.  Interior suspended ceilings and soffits: Maximum deflection of l/360 of distance between supports.

5.  Exterior soffits: Withstand minimum positive and negative pressure of [20] [25] [30] psf or as require by local code authority with maximum deflection of l/360 of distance between supports.

1.06 DELIVERY, STORAGE, AND HANDLING

A.  Comply with provisions in Section 01600 / 01 60 00.

B.  Ordering: Comply with manufacturer’s ordering instructions and lead-time requirements to avoid construction delays.

C.  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. Comply with ASTM C1264.

D.  Do not allow gypsum sheathing to be exposed to the weather beyond the time period recommended by the manufacturer.

E.  Environmental Conditions:

1.  Do not install gypsum board when ambient temperature is below 40°F.

2.  In cold weather and during gypsum panel joint finishing, the temperatures within the building shall be maintained within the range of 55° to 70° F (13° to 21° C). Adequate ventilation shall be provided to carry off excess moisture. Comply with ASTM C840.

************************************************************************************************************************For Retrofits & Healthcare Requirements with Low-Dust Emissions:

SHEETROCK® Brand Plus 3™ Ready-Mixed Lightweight All Purpose Joint Compound with dust control.

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F.  Warning: Store all gypsum and cement panels flat. The panels are heavy and can roll over, causing serious injury or death.

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Coordinate length of warranty period with adjacent construction and owner requirements to obtain unified system warranty. Verify available warranty time periods from available & specified manufacturers. Edit article below to commensurate with project conditions and/or owner’s instructions.

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1.07 WARRANTY

A.  Comply with provisions in Section 01700 / 01 70 00.

B.  Provide glass-mat gypsum sheathing manufacturer’s standard 12-month Warranty against damage due to weather exposure.

C.  Provide glass-mat gypsum sheathing manufacturer’s standard Warranty against all defects in manufacturing runs for a period of 5 years beginning on the date of installation of the Product in the building.

D.  Provide bead and trim manufacturer’s Lifetime Warranty against edge cracking on vertical components.

1.08 ALTERNATE CONSTRUCTION WASTE DISPOSAL

A. Reuse:

1. Separate clean waste drywall pieces from contaminants for landfilling or recycling. Do not include vinyl-faced, mold-resistant or asphalt impregnated gypsum boards. Pulverize and apply to site soil in accordance to landscape specifications. Protect scrapes and pulverized material from moisture and contamination. Alternate to on-site soil amendment, work to supply local farming granular material for their use.

B. Recycle:

1. Separate clean waste drywall pieces from contaminants for landfilling or reuse. Working with local waste hauler and local drywall manufacturer, provide proper storage of waste for pickup and return. Protect scrapes material from moisture and contamination.

PART 2 PRODUCTS

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Edit list of manufacturers to suit project requirements.

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2.01 MANUFACTURERS

A.  A specific product or material manufactured by any of the following listed manufacturers is "acceptable" (not "approved") only if the specific product or material can evidence exact compliance with the Contract Documents.

a.  Acceptable manufacturer is United States Gypsum Company (USG).

*****OR*****

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Retain paragraph below if substitutions will be allowed.

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2.01 MANUFACTURERS AND PRODUCTS

A.  Basis of Design Manufacturer:

1.  United States Gypsum Company (USG)

B.  Substitutions: Refer to Section 01630

2.02 GYPSUM BOARD

A.  General: Provide in thicknesses indicated and maximum lengths as practical to minimize number of joints.

B.  Standard Gypsum Board: ASTM C1396 Section 5 formerly ASTM C36; [1/4] [3/8] [1/2]-inch thick; 48-inches wide; ends square cut; tapered edges. SHEETROCK® Brand Gypsum Panels by United States Gypsum Company (USG).

C.  Lightweight Gypsum Board: ASTM C1396 Section 5 formerly ASTM C36; lightweight gypsum wallboard panels with a high strength-to-weight ratio composite design. The noncombustible core is encased in 100% recycled face and back papers. 1/2 inch thick; 48-inches wide; ends square cut; tapered edges. SHEETROCK® Brand UltraLight Gypsum Panels by United States Gypsum Company (USG). Achieves the following:

1.  Meets or exceeds ASTM C-1396 specifications for 1/2" gypsum wallboard and 1/2" gypsum ceiling board.