FIRE-RESISTANCE DESIGN

Assembly Usage Disclaimer

BXUV - Fire Resistance Ratings - ANSI/UL 263 Certified for United States

BXUV7 - Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada

See General Information for Fire-resistance Ratings - ANSI/UL 263 Certified for United States
Design Criteria and Allowable Variances

See General Information for Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada
Design Criteria and Allowable Variances

Design No. U358

October 10, 2017

Bearing Wall Rating — 1 Hr

Nonbearing Wall Rating — 1 Hr

This design was evaluated using a load design method other than the Limit States Design Method (e.g., Working Stress Design Method). For jurisdictions employing the Limit States Design Method, such as Canada, a load restriction factor shall be used — See Guide BXUV or BXUV7

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

    1. Wood Studs — Nom 2 by 4 in. spaced 24 in. OC, laterally braced, and effectively firestopped at top and bottom.
    2. Gypsum Board* — Any 5/8 in. thick UL Classified Gypsum Board that is eligible for use in Design Nos. L501, G512 or U305. Nom 5/8 in. thick, 4 ft wide, applied horizontally or vertically unless specified below. Attached to studs with 6d cement coated nails 1-7/8 in. long 0.0915 in. shank diam and 1/4 in. diam head spaced 6 in. OC. Joints exposed or covered with tape and compound.

    When used in widths other than 48 in., gypsum board to be installed horizontally.

    CABOT MANUFACTURING ULC (View Classification)CKNX.R25370


    AMERICAN GYPSUM CO (View Classification)CKNX.R14196


    BEIJING NEW BUILDING MATERIALS PUBLIC LTD CO (View Classification)CKNX.R19374


    CERTAINTEED GYPSUM INC (View Classification)CKNX.R3660


    CGC INC (View Classification)CKNX.R19751


    CONTINENTAL BUILDING PRODUCTS OPERATING CO, L L C (View Classification)CKNX.R18482


    GEORGIA-PACIFIC GYPSUM L L C (View Classification)CKNX.R2717


    LOADMASTER SYSTEMS INC (View Classification)CKNX.R11809


    NATIONAL GYPSUM CO (View Classification)CKNX.R3501


    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM (View Classification)CKNX.R7094


    PANEL REY S A (View Classification)CKNX.R21796


    SIAM GYPSUM INDUSTRY (SARABURI) CO LTD (View Classification)CKNX.R19262


    THAI GYPSUM PRODUCTS PCL (View Classification)CKNX.R27517


    UNITED STATES GYPSUM CO (View Classification)CKNX.R1319


    USG BORAL DRYWALL SFZ LLC (View Classification)CKNX.R38438


    USG MEXICO S A DE C V (View Classification)CKNX.R16089


    2A. Gypsum Board* — (As an alternate to Item 2) - 5/8 in. thick, 4 ft. wide, paper surfaced applied vertically only and secured as described in Item 5.

    GEORGIA-PACIFIC GYPSUM L L CType X ComfortGuard Sound Deadening Gypsum Board.


    2B. Gypsum Board* — (As an alternate to Item 2) - Not to be used with Item #3. Installed as described in Item 2. 5/8 in. thick, 4 ft. wide, paper surfaced, applied vertically only.

    NATIONAL GYPSUM COSoundBreak XP Type X Gypsum Board


    2C. Gypsum Board* — (As an alternate to Items 2 through 2B) — Nominal 5/8 in. thick, 4 ft wide panels, applied vertically and secured as described in Item 2.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUMType QuietRock ES.


    2D. Gypsum Board* — (As an alternate to Item 2) - Not to be used with Item #3. 5/8 in. thick, 4 ft. wide, paper surfaced secured with 1-1/4 in. long Type W coarse thread gypsum panel steel screws spaced a max 8 in. OC, with last screw 1 in. from edge of board.

    CERTAINTEED GYPSUM INCType SilentFX


    2E. Gypsum Board* — (As an alternate to 5/8 in. Type FSW in Item 2) -- 2 layers nom. 5/16 in. thick gypsum panels applied vertically or horizontally. Horizontal joints on the same side need not be staggered. Inner layer attached with fasteners, as described in item 2, spaced 24 in. OC. Outer layer attached per Item 2.

    NATIONAL GYPSUM COType FSW.


    2F. Wall and Partition Facings and Accessories* — (As an alternate to Items 2 through 2D) — Nominal 5/8 in. thick, 4 ft wide panels, applied vertically and secured as described in Item 2.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUMType QuietRock 527.


    2G. Gypsum Board* — (As an alternate to Item 2) — 5/8 in. thick gypsum panels, with beveled, square, or tapered edges, applied either horizontally or vertically. Gypsum panels fastened to framing with 1-1/4 in. long Type W coarse thread gypsum panel steel screws spaced a max 8 in. OC, with last screw 1 in. from edge of board. When used in widths of other than 48 in., gypsum boards are to be installed horizontally.

    AMERICAN GYPSUM COTypes AGX-1, M-Glass, AG-C, LightRoc.


    NATIONAL GYPSUM COType FSK, Type FSK-G, Type FSW, Type FSW-3, Type FSW-5, Type FSW-G, Type FSK-C, Type FSW-C, Type FSMR-C, Type FSW-6, Type FSL


    3. Furring Channels — 7/8 in. deep formed of 25 MSG galv steel, spaced 24 in. OC perpendicular to the studs. Channels overlap 1/2 in. and fastened to the studs with 1-1/4 in. long screws.
    4. Precast Autoclaved Aerated Concrete — Min 3 in. thick and max 2 ft wide panels fastened to the furring channels with 2-1/2 in. long No. 14-10 hex head type self-drilling, self-tapping screws when fastened from the inside of building and with 4 in. long No. 14-10 hex head type self-drilling, self-tapping screws when fastened from the outside of building. Min 4 fasteners per panel per furring channel equal spaced starting 4 in. from each panel edge.

    AERCON FLORIDA L L CType AAC Board


    XELLA MEXICANA S A DE C VType AAC Board


    5. Thin Bed Mortar — A ANSI A118.4 Latex/Portland cement thin bed mortar applied to the joints of each panel.

    * Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

Last Updated on 2017-10-10
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