Gold Bond® Gypsum Sheathing & E2 Extended Exposure Sheathing
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12TH EDITION 06 16 43/NGC ® Gold Bond BRAND 2 Gypsum Sheathing & eXP™ Extended Exposure Sheathing 06 16 43 ® 27 GOLD BOND® BRAND GYPSUM SHEATHING DESCRIPTION TECHNICAL DATA Gold Bond Brand Gypsum and as a component in SIZES AND TYPES Sheathing is a water curtainwall systems and 1/2" x 4' x 8', 9', 10' (Jumbo) square edge. resistant board product exterior insulation systems designed for attachment to and finishes. 5/8" x 4' x 8', 9', 10' (Fire-Shield Jumbo) square edge. the outside of exterior wall 3. As a sheathing for use in VAPOR PERMEABLE framing as a water resistant fire-rated exterior wall Gypsum Sheathing typically has an average vapor permeance underlayment for various assemblies. of 20 perms (dry cup method) which allows the escape of exterior siding materials. normal interior created water vapor. The sheathing is ADVANTAGES manufactured with a 1. Economical: Both material SURFACE BURNING CHARACTERISTICS: treated water resistant core and application costs are (FIRE HAZARD CLASSIFICATION) faced with water repellent low. Gypsum Sheathing has a flame spread of 20 when tested under paper on both face and 2. Fire Resistance: The non- ASTM E 84. Source: Factory Mutual Report No. 16738.102. back surfaces and on both combustible gypsum core FIRE-RESISTANCE RATINGS long edges. Fire-Shield of the sheathing helps (type X) Jumbo Sheathing protect framing elements A one-hour fire rating can be achieved for a wood framed wall has special additives in the even when the siding or when constructed per UL Design U305 consisting of nominal core to enhance its fire finish material is 2 x 4 wood studs 16” o.c. faced on the outside with 5/8" Fire- resistive properties. combustible. Shield Gypsum Sheathing and on the inside with 5/8" Fire- Shield Gypsum Board. USES 3. Weather Protection: 1. As a sheathing for wood Gypsum Sheathing’s A two-hour fire rating may be obtained per UL Design U371 framed residential moisture resistant core and with 2 x 4 wood studs 16" o.c. with two layers of 5/8" Fire- construction to provide fire water repellent surfaces Shield Gypsum Board applied to the interior side and 5/8" Fire- resistance, weather provide a barrier that Shield Gypsum Sheathing, faced with brick veneer on the protection and to add to resists passage of wind and exterior side. structural strength when water.** One and two hour fire ratings may be obtained for a steel framed used under exterior finishes 4. Little or No Sawing: wall when constructed per UL Designs U 418 and U 425. such as vinyl siding, Gypsum Sheathing can be STRUCTURAL clapboard, paneling, scored and snapped to Racking tests have been conducted for the Gypsum Association masonry veneer, stucco exact size without cutting and shingles. by an independent laboratory according to ASTM E 72. or sawing. Average ultimate racking load values were as follows: 2. As a sheathing for steel stud commercial construction SHEAR LOAD IN LBS. PER LINEAR FT. (KILOGRAMS PER METER) Dry Wet* 1/2" x 4' (12.7 mm x 1219 mm) wide sheathing 540 (803) 332 (494) 5/8" x 4' (15.9 mm x 1219 mm) wide type X 654 (973) 522 (777) *Treated core only SQUARE EDGES FOR VERTICAL APPLICATION Studs spaced 16" o.c., fasteners galvanized 11 gauge nails 7/16" WAX-TREATED head, 1 1/2" long for 1/2" sheathing and 1 3/4" long for 5/8", GYPSUM CORE 7" o.c. in the field and 4" o.c. on edges and ends for 5/8" Gypsum Sheathing; 8" o.c. in field and 4" o.c. on edges and ends for 1/2" Gypsum Sheathing. Corner Bracing – Where continuous diagonal bracing is required, many building codes allow the use of 4' wide boards of 1/2" Gypsum Sheathing applied vertically to be used WATER-REPELLENT in place of 1" by 4" wood let-in bracing. PAPER SURFACE Shear Walls – Where wind or seismic forces require shear walls to resist these lateral forces, most building codes provide allowable shear values for walls having gypsum sheathing applied vertically to wood framing. Specific values with construction requirements and limitations are contained in the JUMBO GYPSUM SHEATHING major model building codes (International Building Code, National Building Code, Standard Building Code and Uniform Illustration colors for visualization purposes only. Building Code). Shear values for all gypsum board, including Gypsum Sheathing, are defined in GA-229 at www.gypsum.org/GA-229-08.pdf. SPECIFICATION COMPLIANCE Gold Bond Gypsum Sheathing is manufactured to comply with ASTM Specification C 1396. ** Refer to Limitations, page 29, number 10. 28 NATIONAL GYPSUM SHEATHING 06 16 43/NGC LIMITATIONS 7. Gypsum Sheathing should SPECIFICATIONS be spaced not less than 1/4" from abutting masonry 1. Gypsum Sheathing is not a to minimize wicking. SECTION 06 16 43 finished surface nor is it a GYPSUM SHEATHING substrate for the direct 8. Neatly stack Gypsum application of stucco, paint Sheathing flat, taking care THE FOLLOWING PARAGRAPHS ARE FOR INSERTION INTO SECTIONS OF or textures. Placement of to prevent sagging or GENERIC SPECIFICATIONS OR GENERIC/PROPRIETARY SPECIFICATIONS vapor retarders is the damage to the ends, edges COVERING GYPSUM BOARD PRODUCTS. THE GOLD BOND PRODUCT responsibility of the design and surfaces. NAME FOLLOWS THE GENERIC DESCRIPTION IN PARENTHESES. professional. 9. Gypsum Sheathing may be PART 2 PRODUCTS 2. The sheathing shall not be stored outside for up to one 2.01 MATERIALS used as a nailing base. month if stacked off the A. Gypsum Sheathing Board: A gypsum core sheathing boards 06 16 43 ground under protective with additives to enhance the water resistance of the core; 3. Exterior Insulation Finish covering. Systems (EIFS): Exterior surfaced with water repellent paper on front, back, and long Insulation Finish Systems 10. Gypsum Sheathing is edges; and complying with ASTM C 1396. incorporating Gypsum designed for use as a 1. Regular Board, 1/2" x 4' x 8', 9', 10' with square edge Sheathing should be used substrate that is covered by (Gold Bond BRAND Jumbo Gypsum Sheathing). an exterior cladding or with mechanical fasteners. 2. Fire-Resistant Board (type X), 5/8" x 4' x 8', 9', 10' with The performance of other weather resistive additives in the core to enhance fire resistance these systems and barrier and is not intended (Gold Bond BRAND Fire-Shield Jumbo Gypsum Sheathing). for long term exposure. recommendation of the PART 3 EXECUTION proper method of After it has been installed, attachment are the sole it shall not be exposed to 3.01 INSTALLATION responsibility of the EIFS the elements for more than A. Gypsum Sheathing: In accordance with ASTM C 1280 and manufacturer. 30 days. The gypsum the manufacturer’s recommendations, National Gypsum sheathing shall be covered Company “Gypsum Construction Guide.” 4. Application of Gypsum with building felt or Sheathing to framing by equivalent within 30 days adhesive only is not after installation if exposure recommended. time will be more than 30 RECOMMENDATIONS 5. Stud spacing must not days. exceed 24" o.c. 11. Gypsum Sheathing Fasteners (nail or screw heads or the crown of staples) shall bear 6. Gypsum Sheathing is not applied perpendicular to tightly against the face of the sheathing but should not cut into recommended for framing shall be covered the face paper. Staples shall be driven with the crown parallel application to exterior with building felt or to the framing. Fasteners shall be no less than 3/8" from the ceilings, soffits or sills. equivalent or the edges and ends of the sheathing. When shear values are not horizontal joints shall be required, fasteners shall be spaced not more than 8" o.c. sealed at time of along the vertical ends or edges and intermediate supports. application. JUMBO GYPSUM SHEATHING – 4' WIDE DETAILS Apply Jumbo Gypsum Sheathing vertically with vertical edges butting over the center of framing members. Fit sheathing snugly around all openings. Vertically attach sheathing with GYPSUM SHEATHING GYPSUM SHEATHING nails or screws spaced not over 4" o.c. around perimeter and 8" o.c. to intermediate studs (space staples not over 3" and 6" o.c. respectively). Jumbo Gypsum Sheathing is permitted to be applied horizontally. Secure horizontally applied sheathing to studs with nails or screws spaced not over 4" o.c. along ends and 8" o.c. to intermediate framing. Square edge gypsum sheathing applied perpendicular to framing shall be covered with building felt or equivalent or horizontal joints shall be sealed at time of application. Horizontal gypsum sheathing joints do not require back blocking. TOTAL WALL THICKNESS Door and window frames for outside wall openings should be ordered according to total wall thickness. For ease of installation it is recommended that window frames be selected with blind stops the same thickness as the sheathing. WINDOW HEAD WINDOW HEAD REVERSIBLE STOPS JAMB-REVERSIBLE STOP JAMB-3/4" BLIND STOP Window frames with reversible stops can accommodate 06115A 06115B 1/2" sheathing. Detail 06115 A. Scale: 3" = 1'-0" Scale: 3" = 1'-0" 3/4" BLIND STOPS For use of fixed 3/4" blind stops with 1/2" sheathing, insert 1/4" shim between sheathing and trim. Detail 06115 B. NATIONAL GYPSUM SHEATHING 29 3.4 LB. SELF-FURRING DIAMOND MESH METAL LATH INSTALLATION BUILDING FELT BUILDING OR FELT OR EQUIVALENT EQUIVALENT SHEATHING SHEATHING OR PAPER- BACKED METAL LATH 2" X 4" 2" X 4" FRAMING FRAMING 16" O.C. 16" O.C. STUCCO FLASHING VINYL, WOOD, CLAPBOARD SIDING STUCCO Apply horizontal siding directly over the sheathing. Fasteners Nail 3.4 lb. Self-furring Galvanized Diamond Mesh metal lath should have a 1" penetration into each framing member.