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 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 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 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 , 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 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. through the sheathing into the framing. Butt siding joints over framing members. BUILDING FELT OR BUILDING SHEATHING SHEATHING EQUIVALENT FELT OR EQUIVALENT

WALL TIE 2" X 4" 2" X 4" FRAMING FRAMING FURRING STRIP 16" O.C. 16" O.C. BRICK VENEER

FLASHING SHINGLES

BRICK VENEER SHINGLES OR SHAKES Wall ties for masonry veneer should be nailed through the Apply 1 x 2 wood furring strips horizontally over the Gypsum sheathing with nails that penetrate a minimum of 1" into the Sheathing, spaced to correspond to the shingle exposure, framing. Leave an air space of 2" between sheathing and using nails of sufficient length to provide at least 1" veneer.* penetration into the studs. Nail furring through the sheathing into the framing with a minimum of one nail at each intersection of stud and furring.

*Brick Institute of America

Note: Refer to exterior cladding manufacturer and local codes to determine if a weather resistive barrier is required over gypsum sheathing.

30 NATIONAL GYPSUM SHEATHING GOLD BOND® BRAND 06 16 43/NGC 2 e XP™ EXTENDED EXPOSURE SHEATHING

ADVANTAGES MOLD AND MILDEW compound, stucco, paint DESCRIPTION RESISTANCE or textures in wall • Manufactured to meet 2 2 e XP Sheathing was designed applications. e XP Sheathing is a moisture ASTM C 1177 (“Standard Specification for Glass Mat to provide extra protection • All materials in and mold resistant against mold and mildew sheathing panel designed Gypsum Substrate for Use conjunction with 2XP as Sheathing”). compared to standard e for attachment to the Sheathing should be • Will withstand up to 12 gypsum board products. outside of sidewall and When tested by an installed per the soffit framing as a water months of exposure to manufacturer’s typical weather conditions, independent lab per ASTM resistant underlayment for D 3273 (“Standard Test recommendations.

various exterior materials. subject to terms, conditions 06 16 43 2 and exclusions of National Method for Resistance to • 2XP Sheathing should e XP Sheathing is Growth of Mold on the e manufactured with an Gypsum’s Limited never be used as a nailing Warranties. Surface of Interior Coatings enhanced moisture and in an Environmental base. Mechanical fasteners mold resistant core and • Treated fiberglass face, Chamber”), e2XP should pass through the facer. The facer is back and gypsum core Sheathing achieved a score sheathing and engage the composed of a coated provides extra protection of 10, the best possible framing member behind fiberglass mat which against mold growth per score for this test. No the panel. provides superior weather ASTM D3273. material can be considered • 2XP Sheathing is resistant resistance capabilities. It is • Superior water resistance “mold proof,” nor is it e produced in 1/2" and 5/8" which does not impede certain that any material to weather, but it is not thicknesses, 4' wide in 8', 2 vapor transmission. will resist mold or mildew intended for immersion in 9' and 10' lengths. e XP indefinitely. When used in water and should not be Sheathing is lightweight, • Dimensionally stable under changes in temperature conjunction with good subjected to cascading scores and cuts easily and design, handling and is specially coated on the and relative humidity and water conditions. resists warping, rippling, construction practices, 2 front, back and sides for e2XP Sheathing can • Do not apply e XP easy handling. buckling and sagging for a Sheathing below grade. flat and even substrate. provide increased mold resistance versus standard Always follow building • Noncombustible material. BASIC USES gypsum board products. code grade clearance 2 • Approved for inclusion in As with any building requirements. e XP Sheathing can be used specific UL fire-rated material, avoiding water • 2XP Sheathing should be in both wood and metal designs. exposure during handling, e stud construction to storage and installation, protected from the provide fire resistance, • Can be scored and elements and maintained snapped to exact size and after installation is weather protection and to complete, is the best way in reasonable condition add to structural strength. without cutting or sawing. 2 to avoid the formation of prior to installation. e XP Sheathing can be • Coated face and back for mold or mildew. Boards should be stacked used as a substrate for easy handling. various air and water flat with care taken to • Ideally suited for soffit LIMITATIONS prevent sagging or damage resistive barriers including applications. building wraps, self- to edges, ends or surfaces. adhesive membranes and • Suitable for radius • e2XP Sheathing is not a Following installation, the liquid applied coatings. It applications. finished surface nor is it a structure must be can be used as a substrate for the direct component in curtainwall application of joint or Exterior Insulated Finish Systems (EIFS), and under various exterior finishes Enhanced such as metal, vinyl, wood Coated Fiberglass Mat Moisture and or fiber-cement siding; Mold Resistant brick/stone veneer, or Gypsum Core conventional stucco. The 5/8" e2XP Fire-Shield® Type X gypsum panel can be utilized for exterior fire- rated wall and soffit assemblies.

Coated Fiberglass Mat

NATIONAL GYPSUM SHEATHING 31 JOINT TREATMENT adequately maintained by TECHNICAL DATA 2 the contractor and/or e XP Sheathing is compatible building owner. with a variety of exterior PHYSICAL PROPERTIES 1/2" e2XP 5/8" e2XP systems. For applications • Do not laminate 2XP e Nominal Width 4' 4' requiring joint treatment, Sheathing to masonry joint finishes must be surfaces, fasten to furring Standard Lengths 8', 9', 10' ± 1/4" 8', 9', 10' ± 1/4" compatible with the exterior strips or framing. Nominal Weight, lbs./msf 1,900 1,900 system specified. Consult • e2XP Sheathing is not Bending Radius 6'1 6'1 your weather/water resistant intended for tile Composition Coated fiberglass mat/gypsum core barrier manufacturer, applications. For tile 2 cladding manufacturer or Racking strength, lbs/f.(dry) >540 >654 local building code applications, PermaBase (Ultimate - not design value) Cement Board is 3 4 4 authority to determine the recommended. Flexural Strength, parallel, lbs. 80 100 appropriate joint treatments. (4' weak direction) • e2XP Sheathing is not a replacement for structurally Compressive Strength Min. 500 psi Min. 500 psi. DECORATION engineered sheathings Humidified Deflection,3 inches 1/8" 1/8"5 required for racking Permeance6 (perms) [ng/Pa•s•m2] 22 [1260] 19 [1090] qualities, and should not be “R” Value7 .043 .050 Soffit and Ceiling applications used in lieu of only when required. Combustibility Noncombustible Noncombustible 2 Flame Spread, E84 5 5 Embed 2" wide fiberglass mesh • e XP Sheathing application tape in ProForm® BRAND Sta- 9 -6 -6 to framing by adhesive only Coefficient of Thermal Expansion 9.26 x 10 9.26 x 10 Smooth® Setting Compound or is not recommended. in/in/˚F equivalent, over all joints. • Stud spacing must not Resists Growth of Mold10 Yes Yes Once dry, apply a skim coat of exceed 24" o.c. Sta-Smooth Setting Compound Handling Characteristic Yes Yes • All design details such as or equivalent, over the panels fasteners, sealants and Fasteners Standard Standard to achieve a uniform, smooth control joints, per system finish over the entire area. specifications, must be 1. Double fasteners on ends as needed. Prime with exterior grade properly installed. 2. Tested in accordance with ASTM E 72 primer and finish with two Openings and penetrations 3. Tested in accordance with ASTM C 473 coats of exterior grade paint. must be properly flashed 4. Minimum requirements for ASTM C 1177 and sealed according to 5. Maximum requirements for ASTM C 1396 and ASTM C 1177 code, building design and 6. Tested in accordance with ASTM E 96 (dry cup method) weather resistive barrier 7. Tested in accordance with ASTM C 518 (heat flow meter) manufacturer’s instructions. 8. As defined and tested in accordance with ASTM E 136 Failure to do so will void 9. Tested in accordance with ASTM E 228 the warranty . 10. Tested in accordance with ASTM D 3273 (See e2XP Sheathing Warranty for terms, APPLICABLE STANDARDS orientation for specific fire conditions and limitations.) ASTM Specification C 1177 and assemblies and shear wall application sections of C 1396. applications as required by COMPOSITION & MATERIALS the design. 2 e XP Sheathing is FIRE RESISTANCE RATINGS • Framing members shall not manufactured with a The 5/8" e2XP Fire-Shield vary more than 1/8" from the moisture and mold resistant Sheathing is tested in plane of the faces of adjacent core and facer. The facer is accordance with ASTM framing. composed of a coated Standard E 119 and is • Fasteners should be driven fiberglass mat which classified as Type X for use flush with the panel surface (not provides superior weather 2 in UL Listings. countersunk) and into the resistant capabilities. e XP 2 ® framing. Locate fasteners at e XP™ Sheathing Fire-Shield Exterior INSTALLATION least 3/8" from the ends and was introduced in March Sheathing (Type X) has edges of the sheathing. For 2008 on a regional basis special additives in the core wood studs: Nails should be to enhance its fire-resistive APPLICABLE STANDARDS beginning in the AND REFERENCES galvanized, 11 gauge, 7/16" Southeastern United States. properties. head, 1-3/4" long. Screws 2 ASTM C 1280 For additional product and e XP Sheathing contains no should be 1-1/4" bugle head, availability information asbestos. GYPSUM Association GA-253 corrosion resistant Type W for go to: SIZES AND TYPES wood and Type S for steel. Use RECOMMENDATIONS appropriate fasteners for WWW.PURPLECHOICE.INFO. Fire-Shield: attaching e2XP Sheathing to 2 1. Width: 4' (1219 mm) • e XP Sheathing must be framing. 2 2. Lengths: 8', 9' and 10' installed in accordance with • Install e XP Sheathing with (2438 mm, Gypsum Association with end joints staggered on 2743 mm, and document GA-253, ASTM C horizontal applications. 3048 mm) 1280 or National Gypsum Ends and edges of the 3. Thickness: 1/2" Regular Co. Gypsum Construction sheathing should fit snugly. ® (12.7 mm) Guide. • The location of control 5/8" Fire-Shield 2 • e XP Sheathing can be joints shall be as required For additional information (15.9 mm) attached parallel or 4. Edges: Square by either the building design perpendicular to wood or or the manufacture of the Phone 1-800-NATIONAL metal framing. Use specified exterior material. (1-800-628-4662) appropriate board

32 NATIONAL GYPSUM SHEATHING