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. U505

April 16, 2019

Nonbearing Wall Rating — 2 HR.

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

    1. Floor Angles — 3/4 by 1-1/4 in. fabricated from 22 MSG galv steel, short leg attached to concrete or masonry with fasteners spaced 24 in. OC.
    2. Ceiling Runner — Channel-shaped, 1 in. deep by 1-5/8 in. wide, fabricated from 25 MSG galv steel, or two 3/4 by 1-1/4 in. angles fabricated from 22 MSG galv steel, attached to ceiling with fasteners spaced 24 in. OC.
    3. Horizontal Bracing Angles — 3/4 by 1-1/4 in., fabricated from 22 MSG galv steel, spacing between angles not to exceed 5 ft, long leg screw attached to wallboard.
    4. Side Angles — 3/4 by 1-1/4 in. fabricated from 22 MSG galv steel, 30 in. long sections spaced vertically not more than 5 ft OC.
    5. Gypsum Board* — 5/8 in. thick, 4 ft wide. Inner layer applied vertically and attached to floor, side, and bracing angles with 0.127 in. diam by 1 in. long, self-drilling, self-tapping, Phillips head steel screws spaced 16 in. OC. Outer layer applied vertically and secured to floor and side angles and ceiling runner or angle with 0.127 in. diam by 1 in. long steel screws spaced 12 in. OC. Joints between inner and outer layer staggered.

    ACADIA DRYWALL SUPPLIES LTDType X, 5/8 Type X, Type Blueglass Exterior Sheathing


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


    BEIJING NEW BUILDING MATERIALS PUBLIC LTD COType DBX-1.


    CERTAINTEED GYPSUM INCTypes 1, FRPC, EGRG, GlasRoc, GlasRoc-2, Type C , SilentFX, Type X, Type X-1, Easi-Lite Type X-2, 5/8" Easi-Lite Type X.


    CGC INCTypes AR, C, IP-AR, IP-X1, IP-X2, IPC-AR, SCX, SHX, ULX, USGX (Joint tape and compound, Item 8, optional for use with Type USGX), WRC or WRX.


    CONTINENTAL BUILDING PRODUCTS OPERATING CO, L L CTypes LGFC2A, LGFC6A, LGFC-C/A, LGFC-WD, LGLLX, CLLX.


    GEORGIA-PACIFIC GYPSUM L L CTypes 5, 6, 9, C, DA, DAP, DAPC, DGG, DS, GPFS6, LS, TG-C, Type X, Veneer Plaster Base-Type X, Water Rated-Type X, Sheathing Type-X, Soffit-Type X, GreenGlass Type X, Type X ComfortGuard Sound Deadening Gypsum Board, Type LWX, Veneer Plaster Base-Type LWX, Water Rated-Type LWX, Sheathing Type-LWX, Soffit-Type LWX, Type DGLW, Water Rated-Type DGLW, Sheathing Type- DGLW, Soffit-Type DGLW, Type LW2X, Veneer Plaster Base - Type LW2X, Water Rated - Type LW2X, Sheathing - Type LW2X, Soffit - Type LW2X, Type DGL2W, Water Rated - Type DGL2W, Sheathing - Type DGL2W.


    NATIONAL GYPSUM COTypes eXP-C, FSW, FSK, FSW-G, FSW-C, FSK-C, FSW-3, FSW-6, FSW-8, FSMR-C, FSL, SoundBreak XP Type X Gypsum Board.


    NATIONAL GYPSUM CORiyadh, Saudi Arabia — Type FR, or WR.


    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUMType C, PG-5, PG-9, PG-11, PG-C, PGS-WRS.


    SAINT-GOBAIN GYPROC MIDDLE EAST FZEType Gyproc FireStop, Gyproc FireStop MR, Gyproc FireStop M2TECH, Gyproc FireStop ACTIV'Air, Gyproc FireStop MR ACTIV'Air, Gyproc FireStop M2TECH ACTIV'Air, Gyproc DuraLine, Gyproc DuraLine MR, Gyproc DuraLine M2TECH, Gyproc DuraLine ACTIV'Air, Gyproc DuraLine MR ACTIV'Air, Gyproc DuraLine M2TECH ACTIV'Air


    SIAM GYPSUM INDUSTRY (SARABURI) CO LTDType EX-1


    THAI GYPSUM PRODUCTS PCLType C, Type X.


    UNITED STATES GYPSUM COType AR, C, IP-AR, IP-X1, IP-X2, IPC-AR, SCX, SHX, ULX, WRC, WRX, USGX (Joint tape and compound, Item 8, optional for use with Type USGX), ULIX.


    USG BORAL DRYWALL SFZ LLCTypes C, SCX, USGX (Joint tape and compound, Item 8, optional for use with Type USGX).


    USG MEXICO S A DE C VType AR, C, IP-AR, IP-X1, IP-X2, IPC-AR, SCX, SHX, ULX, USGX (Joint tape and compound, Item 8, optional for use with Type USGX), WRC or WRX.


    5A. Gypsum Board* — (As an alternate to Item 5) — Nom 3/4 in. thick, 4 ft wide, installed as described in Item 5 with screw length increased to 1-1/4 in.

    CGC INCTypes AR, IP-AR.


    UNITED STATES GYPSUM COTypes AR, IP-AR.


    USG MEXICO S A DE C VTypes AR, IP-AR.


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

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


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

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


    6. Gypsum Board* — 1 in. thick, 2 ft wide gypsum wallboard with square edges may be used. Attached to floor angles and ceiling runners and to horizontal bracing angles, with tapping, Phillips head steel screws spaced 12 in. OC Joints between core board and wallboard staggered.

    CGC INCType SLX.


    UNITED STATES GYPSUM COType SLX.


    USG BORAL DRYWALL SFZ LLCType SLX


    USG MEXICO S A DE C VType SLX.


    6A. Gypsum Board* — As an alternate to Item 6, 1 in. thick gypsum wallboard liner panels, supplied in nominal 24 in. widths. Attached to floor angles and ceiling runners, and to horizontal bracing angles, with 0.127 in. diam by 2-1/4 in. long, self-drilling, self-tapping, Phillips head steel screws spaced 12 in. OC. Joints between core board and wallboard staggered.

    NATIONAL GYPSUM CO Types FSW, FSW-B, FSW-7, FSW-9


    6B. Gypsum Board* — As an alternate to Item 6, 1 in. thick gypsum wallboard liner panels, supplied in nominal 24 in. widths. Attached to floor angles and ceiling runners, and to horizontal bracing angles, with 0.127 in. diam by 2-1/4 in. long, self-drilling, self-tapping, Phillips head steel screws spaced 12 in. OC. Joints between core board and wallboard staggered.

    CONTINENTAL BUILDING PRODUCTS OPERATING CO, L L CType LGFCSL


    6C. Gypsum Board* — As an alternate to Item 6, 1 in. thick gypsum wallboard liner panels, supplied in nominal 24 in. widths. Attached to floor angles and ceiling runners, and to horizontal bracing angles, with 0.127 in. diam by 2-1/4 in. long, self-drilling, self-tapping, Phillips head steel screws spaced 12 in. OC. Joints between core board and wallboard staggered.

    GEORGIA-PACIFIC GYPSUM L L CTypes DGUSL, TRSL and TP-6


    7. Laminating Compound — Of the type used in joint treatment, mixed with water in accordance with instructions shown on containers, applied with an applicator producing beads about 5/16 in. in diam spaced 1-3/4 in. OC. Outer layer of wallboard temporarily nailed to core board until compound sets. Nails removed and holes filled with compound.
    8. Joints — (Not shown) — Wallboard joints exposed or covered with fiber tape and joint compound. As an alternate, nominal 3/32 in. thick gypsum veneer plaster may be applied to the entire surface of Classified veneer baseboard. Joints reinforced.

    * 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 2019-04-16
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