(Specifier Note:  The purpose of this guide specification is to assist the specifier in correctly specifying gypsum sheathing products and installation.  The specifier needs to edit the guide specifications to fit the needs of specific projects.  Contact a CertainTeed Product Representative to assist in making the appropriate product selections.  Throughout the guide specification, there are Specifier notes to assist in the editing of the file.  The term Architect is used throughout these guide specifications, as a guide and may be edited to read “Design Professional”,” Engineer”, “Owner” or other appropriate designation as required for specific project.

References have been made within the text of the specification to MasterFormat 2004 Section numbers and titles, specifier need to coordinate this numbers and titles with sections included for the specific project.  Brackets [ ]; “AND/OR”; and “OR” have been used to indicate when a selection is required.)

SECTION 06 16 43
GYPSUM SHEATHING

PART 1 - GENERAL

1.1 SECTION INCLUDES:

• Treated Core Gypsum Sheathing
• Exterior Gypsum Soffit Board
• Glass-Reinforced Gypsum Sheathing
• Accessories and Trim

1.2 REFERENCES

A. ASTM International (ASTM)

• ASTM C 514 - Standard Specifications for Nails for the Application of Gypsum Board.
• ASTM C 920 - Standard Specification for Elastomeric Joint Sealants
• ASTM C 954 - Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs From 0.033 in. to 0.112 in. in Thickness
• ASTM C 1002 - 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
• ASTM C 1047 - Standard Specification for Accessories For Gypsum Wallboard and Gypsum Veneer Base
• ASTM C 1177- Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• ASTM C 1280 - Standard Specification for Application of Gypsum Sheathing
• ASTM C 1396 - Standard Specification for Gypsum Board
• ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials

B. Gypsum Association

• GA - 253 – Application of Gypsum Sheathing
• GA - 254 – Fire-Resistant Gypsum Sheathing
• GA - 600 - Fire Resistant Design Systems; Gypsum Association

C. Underwriters Laboratories Inc

• UL - Fire Resistance Directory

1.3 SUBMITTALS

A. Refer to Section [01 33 00 Submittal Procedures]  [insert section number and title].

B. Product Data:  Submit manufacturer current technical literature for each component.

C. Samples:

• Board: Submit sample of each panel product specified, [6 inches square] [insert size].
• Trim:  Submit sample of each type of trim specified, [12 inches long] [insert size].

D. Quality Assurance Submittals

(Specifier Note:  DELETE Design Data, Test Report submittal requirements when propriety specification is used and can be held.  MAINTAIN Design Data, Test Report submittal requirement when other products may be submitted as substitution.)

• Design Data, Test Reports:  Provide manufacturer test reports indicating product compliance with indicated requirements.
• Manufacturer Instructions:  Provide manufacturer’s written installation instructions.

E. Closeout Submittals

• Refer to Section [01 78 00 Closeout Submittals]  [insert section number and title].

1.4 QUALITY ASSURANCE

• Qualifications:  Installer shall have experience with installation of gypsum sheathing under similar conditions.

1.5 DELIVERY, STORAGE AND HANDLING

• Deliver materials in manufacturer’s original packages, indicating manufacturer and product name.
• Store gypsum in accordance with manufacturer recommendations.

PART 2 - PRODUCTS

(Specifier Note: Product Information is proprietary to CertainTeed America Inc. products.)

2.1 MANUFACTURER

• Basis of Design:  CertainTeed America Inc.; 5301 West Cypress Street, Suite 300, Tampa, FL 33607; 1-866-4 CertainTeed USA (1-866-427-2872); www.bpb-na.com
• Equivalent Design:  Manufacturer with products of equivalent design may include, but are not limited to:
  • National Gypsum Company
  • USG Corporation

2.2 GYPSUM SHEATHING

• Treated Core Gypsum Sheathing
  • Standard Treated Core Sheathing: Water-repellent sheathing for exterior applications.  Complying with ASTM C1396.
    • Basis of Design:  ProRoc®  Sheathing Treated Core, manufactured by CertainTeed America Inc.
    • Thickness:  1/2 inch
    • Width: [24 inches] [48 inches] [24 inches or 48 inches]
    • Length: [8 feet] [9 feet] [10 feet] [12 feet] [Use longest length available to avoid joints]
    • Edges: [Square] [Tongue and Groove]
  • Fire Rated Treated Core Sheathing: Water-repellent sheathing with a specially formulated core for use in fire-resistive designs.  Complying with ASTM C 1396.
    • Basis of Design:  ProRoc®  Sheathing Treated Core Type X, manufactured by CertainTeed America Inc.
    • Thickness: 5/8 inch
    • Width:  48 inches
    • Length: [8 feet] [9 feet] [10 feet] [12 feet] [Use longest length available to avoid joints]
    • Edges:  Square
• Exterior Gypsum Soffit Board
  • Regular Exterior Soffit Board:  Gypsum core soffit panel with sag resistant core. Complying with ASTM C 1396.
    • Basis of Design: ProRoc® Exterior Soffit Board, manufactured by CertainTeed America Inc.
    • Thickness: 1/2 inch.
    • Width:  48 inches.
    • Length: [8 feet] [12 feet] [Use longest length available to avoid joints]
    • Edges: Tapered
  • Fire Rated Exterior Soffit Board:  Gypsum core soffit panel with enhanced fire and sag resistant core for use in fire resistive designs. Complying with ASTM C 1396, Type X.
    • Basis of Design: ProRoc® Exterior Soffit Board Type X, manufactured by CertainTeed America Inc.
    • Thickness: 5/8 inch.
    • Width:  48 inches.
    • Length: [8 feet] [12 feet] [Use longest length available to avoid joints]
    • Edges: Tapered
• Glass-Reinforced Gypsum Sheathing
  • Glass-Reinforced Gypsum Sheathing:  Weather resistant sheathing with CertainTeed Enhanced Glass Reinforced Gypsum Technology.  Complying with ASTM C 1177.
    • Basis of Design:  GlasRoc® Sheathing, manufactured by CertainTeed America Inc.
    • Thickness: 1/2 inch
    • Width: 48 inches
    • Length: [8 feet] [9 feet] [Use longest length available to avoid joints]
    • Edges:  Square
    • Flame Spread/Smoke Developed:  0/0 when tested in accordance with ASTM E 84.
  • Fire Rated Glass-Reinforced Gypsum Sheathing: Weather resistant sheathing with CertainTeed Enhanced Glass Reinforced Gypsum Technology and fire resistive core.  Complying with ASTM C 1177.
    • Basis of Design:  GlasRoc® Sheathing Type X, manufactured by CertainTeed America Inc.
    • Thickness: 5/8 inch
    • Width: 48 inches
    • Length: [8 feet] [12 feet] [Use longest length available to avoid joints]
    • Edges:  Square
    • Flame Spread/Smoke Developed:  0/0 when tested in accordance with ASTM E 84.

• Trim:  Complying with ASTM C 1047.
  • Cornerbead
  • LC-Bead
  • Control Joint
• Fasteners:
  • Screws: [ASTM C 954] [ASTM C 1002] as recommended by panel manufacturer.
  • Nails: ASTM C 514 with heads, lengths, configurations, and finish as recommended by panel manufacturer.
• Joint Treatment
  • Tape: Self-adhering glass fiber tape, minimum 2 inches wide, 10 by 10 mesh, as recommended by sheathing and sealant manufacturer.
  • Sealant

(Specifier Note:  The use of a separate water-resistive barrier may permit joints and fasteners to be untreated depending on local code requirements.  Sealants may be specified in this section or may be specified elsewhere in Division 07.  EDIT paragraphs below dependent upon location of sealant specification.)

• Refer to Section [07 92 00 Joint Sealants]  [insert section number and title].

OR

• Provide sealant that complies with ASTM C 920, silicone sealant to maintain watertight conditions and as recommended by tape and sheathing manufacturer.

PART 3 - EXECUTION

3.1 SHEATHING INSTALLATION

• Glass-Reinforced Gypsum Sheathing:  Install in accordance with [GA-253] [ASTM C 1280] and sheathing manufacturer recommendations.
• Fire Rated Glass-Reinforced Gypsum Sheathing: Install in accordance with [GA-600] [UL design] and sheathing manufacturer recommendations.

3.2 PROTECTION

• Protect installed products from damage during remainder of the construction period.
• Remove and replace panels that are damaged.

END OF SECTION