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. U369

October 10, 2017

Bearing Wall Rating- 2 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 16 in.. OC, effectively fire stopped at top and bottom of wall.
    2. Fiber, Sprayed * — Spray applied cellulose insulation material. The fiber is applied with water to interior surfaces in accordance with the application instructions supplied with the product. Applied to completely fill the cavities between wood studs of both sides of wall to a nom. depth of 3-1/2 in. Min. dry density of 4.3 pounds per cubic ft.

    NU-WOOL CO INC — Cellulose Insulation


    3. 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 gypsum board, 4 ft wide, paper surfaced, with beveled, square, or tapered edges, applied vertically. Wallboard fastened 6 in. OC at joints and edges and 12 in. OC in the field with No. 6 by 1-5/8 in long bugle head drywall screws. Screw spacing and type is same for all layers.

    Configuration A: Two layers of gypsum board are to be attached to the wood studs (Item 1) on one side of the wall. The face and base layer joints of the gypsum board are to be staggered. A 5/8 in. air space is to be placed in between the studs and the inner layer of gypsum board on the side of the wall which incorporates 2 layers of gypsum board.

    Configuration B: One layer of gypsum board is to be attached to each side of the wood studs (Item 1). An optional air space, up to 3-1/2 in., placed in between the two inner layers of gypsum board.

    ACADIA DRYWALL SUPPLIES LTD (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


    3A. Gypsum Board* — (As an alternate to Item 3) — Nominal 5/8 in. thick, 4 ft wide panels, secured as described in Item 3.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM — Type QuietRock ES.


    3B. Wall and Partition Facings and Accessories* — (As an alternate to Item 3 and 3A) — Nominal 5/8 in. thick, 4 ft wide panels, secured as described in Item 3.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM — Type QuietRock 527.


    4. Joint and Screw Heads — (Not shown) — On outer layers of wallboard the joints are to be covered with two layers of tape and joint compound and screw heads to be covered with two layers of joint compound.
    5. Structural Adhesive — (Not shown) — A 1/2 in. wide bead applied to all stud faces before application of gypsum board (Item 3).

    * 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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