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. U017

October 02, 2019

Nonbearing Wall Rating — 1/2, 3/4 or 1 HR (See Item 4).

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

    1. Steel Angles — 2-1/2 by 2-1/2 by 1/4 in. structural steel attached to masonry with 1/2 by 1-1/2 in. masonry anchor bolts.
    2. Building Units* — insulated steel panels, 24, 30 or 42 in. wide. Attached through retainer clips to horizontal supporting angles with No. 14 by 1-3/4 in. hex washer head self-tapping screws located at each joint in the concealed lip of the building unit.

    CENTRIA, A DIVISION OF NCI GROUP, INC Formawall Dimension Series, Formawall Dimension Series Graphix, Versapanel 1.75", 2.5", 4"; Versawall 2", 2.75", 4"; MetalWrap Long Span 2", 2.75" & 4".


    KINGSPAN INSULATED PANELS INCTypes 200, 300, or KS series.


    3. Flashing Angles — 2-1/2 by 2-1/2 in., No. 20 gauge coated steel attached to masonry with 1/4 by 1-1/2 in. nail in masonry anchors spaced 24 in. OC and 2 in. from ends. Vertical and horizontal (upper) flashing attached to building units with No. 14 by 1-1/2 in. hex washer head self-tapping screws spaced 24 in. OC and 2 in. from ends.
    4. 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, with square or tapered edges. Applied vertically or horizontally, unless specified below, with joints staggered min 6 in. both directions. Attached to building units with Type S-12 Phillips bugle head steel screws 1-5/8 in. long for the first layer, 1-7/8 in. long for the second layer and 2-1/8 in. long for the third layer (if needed). Screws spaced 21 in. OC horizontally and 12 in. vertically with screws located 3 in. from edges.

    For 1/2 Hr rating-Fire exposed to either side-Two layers are required.

    For 3/4 or l Hr rating-Fire exposed to gypsum board side only-Two layers required.

    For 3/4 or l Hr rating-Fire exposed to either side-Three layers are required.

    When Items 5, 6 and 7 are used, three layers of gypsum board attached vertically or horizontally to steel studs (Item 6) and floor and ceiling runners (Item 5), with joints centered over studs. First layer attached with Type S-12 Phillips bugle head steel screws 1-5/8 in. long, spaced 24 in. OC. Second layer attached with 1-7/8 in. long screws, spaced 24 in. OC. Third layer attached with 2-1/8 in. long screws, spaced 12 in. OC. Joints and screws staggered between layers. Rating is limited to 1 Hr, with fire exposed to either side.

    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


    SAINT-GOBAIN GYPROC MIDDLE EAST FZE (View Classification)CKNX.R27321


    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


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

    CABOT MANUFACTURING ULCType X


    CERTAINTEED GYPSUM INCType SilentFX


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


    NATIONAL GYPSUM COType SBWB


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

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


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

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


    4D. Gypsum Board* — (As an alternate to 5/8 in. Type FSW in Item 4) - Nom. 5/16 in. thick gypsum panels applied vertically or horizontally. Two layers of 5/16 in. for every single layer of 5/8 in. gypsum board described in Item 4. Horizontal joints on the same side need not be staggered. Inner layer of each double 5/16 in. layer attached with fasteners, as described in item 4, spaced 24 in. OC. Outer layer of each double 5/16 in. layer attached per Item 4.

    NATIONAL GYPSUM COType FSW.


    5. Floor and Ceiling Runners — (Optional, Not shown) — Channel shaped runners, min 3-5/8 in. wide, min 0.020 in. thick (25 ga.) galv steel, attached to floor and ceiling with fasteners spaced 24 in. OC max.
    6. Steel Studs — (Optional) — Channel shaped, min 3-5/8 in. wide, 1-1/4 in. legs, 3/8 in. folded back returns, min 0.020 in. thick (25 ga.) galv steel, spaced 24 in. OC max. Studs to be cut 3/8 in. less than assembly height.
    7. Subgirt — (Optional) — Hat or "Z" shaped subgirts, min. 1/2 in. deep, min. 0.045 in. thick (18 ga.) galv steel, spaced 48 in. OC and attached through gypsum board to steel studs (Item 6) with 3 in. long, No. 14 self-tapping screws or No. 14 self-drilling screws. Building units (Item 2) securely fastened to subgirts with No. 14 hex head self-tapping screws through retainer clips at each joint in the concealed lip of the building unit.

    * 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 2019-10-02
BXUV.U017 U017 BXUV 128669004 DESIGN Active 20191002 20191002 128669004 100523073 100562937 283066001 736720001 100219806 846414005 294450001 299592001 226521001 923830002 100046076 544217001 100572141 798029001 100584219 730408054 P1802957 287840003 100562937 100219806 299592001 923830002 100046076 100046076 923830002

Design/System/Construction/Assembly Usage Disclaimer

  • Authorities Having Jurisdiction should be consulted in all cases as to the particular requirements covering the installation and use of UL Certified products, equipment, system, devices, and materials.
  • Authorities Having Jurisdiction should be consulted before construction.
  • Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements. The published information cannot always address every construction nuance encountered in the field.
  • When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the product manufacturer noted for the design. Users of fire resistance assemblies are advised to consult the general Guide Information for each product category and each group of assemblies. The Guide Information includes specifics concerning alternate materials and alternate methods of construction.
  • Only products which bear UL's Mark are considered Certified.

The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from UL" must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "© 2019 UL LLC".