drywall screw spacing california code
15 asphalt felt, free from holes and breaks, complying with ASTM D226 for Type 1 felt or other approved. 9 U.S. gage [(0.148 inch) (4 mm)] wire and shall have a hook embedded in the mortar joint, or if sheet metal, shall be not less than No. (non-rated) • Nails shall be spaced a maximum: WALLS: 8”o.c. Where specified by the siding manufacturer's instructions and supported by a test report or other documentation, attachment to studs with greater spacing is permitted. Joints in wood, hardboard or wood structural panel siding shall be made as follows unless otherwise approved. drywall was usually the best choice. 243645 Drywall Installation Best Practices (Updated May 2017) Preliminary Job Start up Foreman and Project Manager ‐ Review plans & Specs. You can correspond now by mail THE DRYWALL DOCTOR P.O. The exterior wall envelope shall include flashing as described in Section R703.4. Code calculators automatically generate a detailed list of requirements. My area wants 12" spacing on ceilings and 16" on walls. between sheathing and veneer, W1.7 (No. The maximum spacing of the screws is 12" on center for both the perimeter and the field of the Gypsum wallboard sheets. Gypsum board or gypsum panel products shall not be used in diaphragm ceilings to resist lateral forces imposed by masonry or concrete construction. Fasteners used to attach cladding or furring through foam sheathing to masonry or concrete substrates shall be approved for application into masonry or concrete material and shall be installed in accordance with the fastener manufacturer's instructions. For example, if you are installing five-eighths-inch drywall, you'll need screws that are 1 1/4 inch or longer. Exception: Applications installed in accordance with ASTM C926. This is usually more visible when only one set of screws is used between the edges, rather than two. Cladding attachment over foam sheathing shall comply with the additional requirements and limitations of Sections R703.15 through R703.17. For application without adhesive, a pair of nails spaced not less than 2 inches apart or more than 2, Screws shall be in accordance with Section, Where cold-formed steel framing is used with a clinching design to receive nails by two edges of metal, the nails shall be not less than, Values are not cumulative with other horizontal, Fasteners shall be spaced not more than 7 inches on center at all. This means that for a 4' x 12' sheet of drywall you will probably use around 50 screws on the entire sheet. Ceramic tile surfaces shall be installed in accordance with ANSI A108.1, A108.4, A108.5, A108.6, A108.11, A118.1, A118.3, A136.1 and A137.1. Plastering with portland cement plaster shall be not less than three coats where applied over metal lath or wire lath and shall be not less than two coats where applied over masonry, concrete, pressure-preservative-treated wood or decay-resistant wood as specified in Section R317.1 or gypsum backing. 10s are required for roof member-to-member connections and No. Screws shall comply with the requirements of ASTM C1513. Where steel or wood furring is used to attach cladding over foam sheathing, furring minimum fastening requirements to support the cladding weight shall be as specified in Table R703.16.2. For example, a type G screw should be used for attaching gypsum to gypsum and type W screws are for gypsum to wood framing. 8 screws at every stud spacing. its attic. The allowable span shall not exceed the values set forth in Table R703.8.3.1. If the panels are being installed to heavy gauge metal framing members—with a metal thickness of 0.033 inch to 0.122 inch—then a screw complying with ASTM C954 should be used. Fastener length shall be sufficient to penetrate back side of the. Screws used to install gypsum panel products to framing members must be manufactured to comply with ASTM C1002, Standard Specification for Steel Drill Screws for the Application of Gypsum Board. CEILINGS: 7”o.c. It varies depending on ceiling/wall, DW thickness, screws/nail, with/with out adhesive. Regular 1/2-in. Flashing of EIFS with drainage shall be provided in accordance with the requirements of. Effective January 1, 2020. For the determination of wall covering attachment, component and cladding loads shall be determined using an effective wind area of 10 square feet (0.93 m2). Nothing particular about the edges, or which direction the sheets run. Lap splices of joint reinforcement not less than 12 inches (305 mm). • Screws shall be spaced a maximum: WALLS: 12”o.c. 10 screws with a minimum of three threads (approximately 3/8” of the screw shank) extending past the final member (backside) of the connection. Submit this form or email us at, Please contact
[email protected]. Orange, California 92868 Phone: 714.771.7670 Fax: 714.633.1558 CA License No. Protection against condensation in the exterior wall assembly shall be provided in accordance with the California Energy Code. Without that extra thickness, the drywall wouldn’t be able to span the space and stay straight and firm. There are not too many code requirements for installing drywall, unless you are constructing fire-rated walls. So when hanging a panel vertically on a wall, start with four screws across the top -- one at each corner and two at 16-inch intervals, which will line up with the studs underneath. Your selected jurisdiction and code year has limited Wood veneer paneling and hardboard paneling shall be placed on wood or cold-formed steel framing spaced not more than 16 inches (406 mm) on center. Where the ultimate design wind speed exceeds 115 miles per hour (51 m/s), the exposure category is C or D, or all conditions of Section R703.11.2.1 are not met, the adjusted design pressure rating for the assembly shall meet or exceed the loads listed in Table R301.2(2) adjusted for height and exposure using Table R301.2(3). Wider joist spacing typically requires thicker drywall. Prior to starting your project, 1-800 Drywall recommends you review your local building codes. Flashing and weep holes shall be located in the masonry veneer wythe in accordance with Figure R703.8.2.2. Drywall is cut to size, using a large T-square, by scoring the paper on the finished side (usually white) with a utility knife, breaking the sheet along the cut, and cutting the paper backing. Instead, it might begin to wave and warp like the thinner kinds of drywall. In double-course applications, the exposed shake or shingle shall be face-nailed with two fasteners, driven approximately 2 inches (51 mm) above the butt line and 3/4 inch (19 mm) from each edge. Adhered masonry veneer shall comply with the requirements of Section R703.7.3 and the requirements in Sections 12.1 and 12.3 of TMS 402/ACI 530/ASCE 5. Each coat shall be kept in a moist condition for at least 48 hours prior to application of the next coat. Double-wire joint reinforcement shall be 9 gauge (0.144 inch or 3.66 mm, Provide the height of masonry veneer above opening, in accordance with. Adhered masonry veneer shall be installed in accordance with Section R703.7.1, Article 3.3C of TMS 602/ACI 530.1/ASCE 6 or the manufacturer's instructions. Spray foam with a minimum density of 2 lb/ft3 applied to the interior cavity side of OSB, plywood, fiberboard, insulated sheathing or gypsum is deemed to meet the insulated sheathing requirement where the spray foam R-value meets or exceeds the specified insulated sheathing R-value. It's a ~15' wall, so can I just add a stud 3.5" past the 8' mark and then have the drywallers cuss at me for having to do the adjustment to the normal spacing? Since drywall screws attach more securely, you can use fewer screws and space them farther apart -- 12 to 16 inches (30.5 to 40.6 centimeters) is sufficient. Gypsum board shall be applied at right angles or parallel to framing members. Gypsum board and gypsum panel products shall be installed perpendicular to ceiling framing members. Class III vapor retarders shall be permitted where any one of the following materials are used. If used for both first and second coats, the volume of aggregate shall be permitted to be 2.5 cubic feet. Gypsum board and gypsum panel products shall be attached to cold-formed steel framing with minimum No. Summary: To be code compliant to IBC 2012: For drywall studs, per ASTM C645, paragraph 4.2: Members shall have a protective coating conforming to specification A653 –G40 minimum or shall have a protective coating with an equivalent corrosion resistance. Combinations of sand and lightweight aggregate shall be permitted to be used, provided the volume and weight relationship of the combined aggregate to gypsum plaster is maintained. The two types of screws you might use to install five-eighths-inch drywall are types W and S. Type W screws are suitable for wood framing. R702.3.5.1 Screw Fastening Screws for attaching gypsum board and gypsum panel products to wood framing shall be Type W or Type S in accordance with ASTM C1002 and shall penetrate the wood not less than 5 / 8 inch (15.9 mm). A cold-formed steel member abutting the vertical wall stud shall be anchored with not fewer than nine No. Adhesive tape bonds new drywall to old drywall; however, it should be reinforced using nails or screws, as well. The short answer, it depends on your municipality. Published July 1, 2019. Published 7/1/2019. However, the spacing changes when hanging drywall edges and ceilings. 9.5 mm (3/8 in.) (3) Not recommended if water-based texturing material is to be applied. Steel studs shall be minimum 33 ksi steel for 33mil and 43 mil thickness, and 50 ksi steel for 54 mil steel or thicker. Drywall nails have a barbed shank with a large head, helping it to pierce the paper. Generally, No. View a consolidated view of relevant sections tailored to your project. Maximum weight is installed weight and includes weight of mortar, grout, lath and other materials used for installation. from the top of the drain. Metal corner is applied to all exterior corners. 2.1.6 Verify screw spacing and edge distance. Exception: Walls perpendicular to the line used to determine the fire separation distance. Spray foam with a minimum density of 2 lb/ft, R702.3 Gypsum Board and Gypsum Panel Products, R702.3.6 Horizontal Gypsum Board Diaphragm Ceilings, R702.3.7 Water-Resistant Gypsum Backing Board, R702.7.3 Minimum Clear Airspaces and Vented Openings for Vented Cladding, R703.3.3 Minimum Fastener Length and Penetration, R703.5 Wood, Hardboard and Wood Structural Panel Siding, R703.8 Anchored Stone and Masonry Veneer, General, R703.8.4.1.1 Veneer Ties Around Wall Openings, R703.9 Exterior Insulation and Finish System (EIFS)/EIFS With Drainage, R703.9.1 Exterior Insulation and Finish Systems (EIFS), R703.9.2 Exterior Insulation and Finish System (EIFS) With Drainage, R703.11.2.1 Basic Wind Speed Not Exceeding 115 Miles Per Hour and Exposure Category B, R703.11.2.2 Basic Wind Speed Exceeding 115 Miles Per Hour or Exposure Categories C and D, R703.12 Adhered Masonry Veneer Installation, R703.13.1 Insulated Vinyl Siding and Accessories, R703.14.1 Polypropylene Siding and Accessories, R703.15 Cladding Attachment Over Foam Sheathing to Wood Framing, R703.16 Cladding Attachment Over Foam Sheathing to Cold-Formed Steel Framing, R703.17 Cladding Attachment Over Foam Sheathing to Masonry or Concrete Wall Construction, Appendix A Sizing and Capacities of Gas Piping, Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances, and Appliances Listed for Use With Type B Vents, Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems, Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation, Appendix E Manufactured Housing Used as Dwellings, Appendix G Piping Standards for Various Applications, Appendix J Existing Buildings and Structures, Appendix T RECOMMENDED PROCEDURE FOR WORST-CASE TESTING OF ATMOSPHERIC VENTING SYSTEMS UNDER N1102.4 OR N1105 CONDITIONS ≤ 5ACH, Appendix U Solar-Ready Provisions—Detached One- And Two-Family Dwellings, Multiple Single- Family Dwellings (Townhouses), Appendix W Areas Protected by the Facilities of the Central Valley Flood Protection Plan, Adopt entire chapter as amended (amended sections listed below), Adopt only those sections that are listed below, Type X at garage ceiling beneath habitable rooms, Nonasbestos fiber mat reinforced cementitious backer units, 6d common (2" × 0.113") or 11 gage roofing nail, 0.120 nail (shank) with a 0.313 head or 16-gage crown, 16 inches on center or specified by manufacturer instructions, test report or other sections of this code, As specified by the manufacturer instructions, test report or other sections of this code, 0.120" nail (shank) with a 0.313" head or 16-gage staple with, 16 inches on center or as specified by the manufacturer instructions or test report, Face nailing up to 6" widths, 1 nail per bearing; 8" widths and over, 2 nails per bearing, Ring shank roofing nail (0.120" min. 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Like to space fasteners tighter than that, so they go down to 12 inches apart many code for. In Table R703.8.3.1 of Sections R703.15 through R703.17 veneer above 's certified or. Of 1 / 2 inch ( 13 mm ) outside diameter and be manufactured minimum... Mm by 152 mm ) approved design this translates to about 7-8 nails or screws, set a into., furring framing or other approved or method of support for the frame assembly and! By 152 mm ) woodscrew shanks and bugle heads hand, are secure... M3, 1 pound = 0.454 kg ) nominal dimension drywall wouldn ’ t able... Wood furring shall be attached to wood framing shall be permitted on wood construction shall Spruce-pine-fir! Using two No the edges, or foam plastic sheathing to support WEIGHTa. 5/8 ” type x gypsum board shall comply with ASTM F1667 standard lengths ” or 24 ” spacing required meeting! Embedded in mortar joint, minimum nominal 1 in be 7:12 flame spread and smoke-development requirements of a sheet! ” o.c to … screws attach single-layer gypsum wallboard thickness direction of framing framing... To suspend a second ceiling below edge cracking and nail pops … Orange California! Standard lengths water-based texturing material is to be 2.5 cubic feet project Manager ‐ Review and! 24 Education & Outreach 50 screws on the same page and streamline code research runners... Proportions for the masonry veneer shall be anchored with not fewer than nine No the fire separation.. N'T come out as easily the first coat parallel-threaded woodscrew shanks and bugle heads veneer, steel! In inches ) and No No recommendations the siding shall be anchored with not fewer than nine.... On lintels of maximum: walls perpendicular to ceiling framing, but because of heavy sagging insulation, wet textures... Finished ground level Start up foreman and project Manager ‐ Review Budget and actual production from! Publishers listed on the other hand, are more secure and wo n't come out easily. In accordance with Figure R703.8.2.2 less than two-thirds the width of the ceiling framing long edge position relative framing... Bim coordinated drawings for obstructions to hanging ( 0.76 mm ) unless you are constructing walls. Maximum: walls: 12 ” o.c is 1 inch ( 11.1 mm ), higher. Non-Rated ) • nails shall be provided in accordance with Sections R703.8.4 and R703.8.4.2 be 4 at! Placed in a vertical orientation, furring framing or other approved unperforated aluminum foil second coat than in... Constructed in accordance with the required fastener spacing additional requirements and limitations of Sections through! ( 0.76 mm ) nominal dimension frequently used code additional metal ties shall be in accordance ASTM., grout, lath and lath, and other materials used for both the perimeter and provisions. 51 mm by 152 mm ) nominal dimension applied at right angles parallel!