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. G587

November 19, 2018

Unrestrained Assembly Ratings — 1-1/2 Hr.

Restrained Assembly Ratings - 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. Steel Deck — Min 9/16 in. deep, minimum 24 MSG galv corrugated fluted steel deck. Overlapped one corrugation at each side and attached to each joist with 3/4 in. long #10-16 TEK screws 10 in OC max.
    2. Floor Topping Mixture* — Compressive strength to be 2000 psi min. Minimum thickness to be 1 in. as measured from the top plane of the deck. Refer to manufacturer's instructions accompanying the material for specific mix design.

    MAXXON CORP — D-C, D-CM, L-R, T-F, CT


    RAPID FLOOR SYSTEMS — Types RFU, Ortecrete


    Floor Mat Materials* — (Optional) — Not Shown — Floor mat material loose laid over the crests of the steel deck. Flutes of the steel deck to be filled with Floor Topping Mixture* prior to the application of the Floor Mat Materials*. Refer to manufacturer's instructions regarding the minimum thickness of floor topping over each floor mat material.

    MAXXON CORP — Type Acousti-Mat 1/8, Acousti-Mat 1/4, Acousti-Mat 1/4 Premium, Acousti-Mat 3/8, Acousti-Mat 3/8 Premium, Acousti-Mat 3/4, Acousti-Mat 3/4 Premium, Acousti-Top.


    Floor Mat Reinforcement — (Optional) - Refer to manufacturer's instructions regarding minimum thickness of floor topping for use with floor mat reinforcement.Metal Lath — (Optional) — 3/8 in. expanded galvanized steel diamond mesh, 3.4 lbs/sq yd loose laid over the floor mat material. Fiber Glass Reinforcement — (Optional, Not Shown) - 0.015 in. thick PVC coated non-woven fiberglass mesh, 0.368 lbs/sq yd loose laid over the floor mat material.
    2A. Floor Topping Mixture* — As an alternate to Item 2- Min 1 in. thickness of floor topping mixture having a minimum compressive strength of 2500 psi. Refer to manufacturer's instructions accompanying the material for specific mix design.

    UNITED STATES GYPSUM CO — Types LRK, HSLRK, CSD


    USG MEXICO S A DE C V — Types LRK, HSLRK, CSD


    Floor Mat Materials* — (Optional, For use with Item 2A) - Floor mat material loose laid over the subfloor. Refer to manufacturer's instructions regarding the minimum thickness of floor topping over each floor mat material.

    UNITED STATES GYPSUM CO — Types SAM, LEVELROCK® Brand Sound Reduction Board, LEVELROCK® Brand Floor Underlayment SRM-25


    2B. Alternate Floor Topping Mixture* — Compressive strength to be 3500 psi min. Minimum thickness to be 1 in. as measured from the top plane of the deck or the top plane of the Floor Mat Material*. Refer to manufacturer's instructions accompanying the material for specific mix design. An ethylene vinyl acetate adhesive may be applied to the steel deck prior to the installation of the floor topping mixture at a maximum application rate of 0.025 lbs./ft2.

    HACKER INDUSTRIES INC — Firm-Fill CMD


    Floor Mat Materials* — (Optional) - Floor mat material nom 5/64 in. (2 mm) thick adhered to steel deck with Hacker Floor Primer. Primer to be applied to the surface of the mat prior to the placement of floor-topping mixture. Floor topping thickness a min 1 in. (25 mm) over the floor mat.

    ECORE INTERNATIONAL INC — Type QTscu 4002


    HACKER INDUSTRIES INC — Hacker Sound-Mat I


    Alternate Floor Mat Materials — (Optional) — Floor mat material nom 1/4 in. (6mm) thick adhered to steel deck with Hacker Floor Primer. Primer to be applied to the surface of the mat prior to the placement of a min 1-1/4 in. (32mm) of floor-topping mixture.

    ECORE INTERNATIONAL INC — Type QTrbm 3006-3


    HACKER INDUSTRIES INC — Hacker Sound-Mat II


    Alternate Floor Mat Materials — (Optional) — Floor mat material nom 1/8 in. (3mm) thick loose laid over the steel deck. Floor topping thickness shall be a min of 1 in. (25mm)

    HACKER INDUSTRIES INC — FIRM-FILL SCM 125


    Alternate Floor Mat Materials — (Optional) — Floor mat material nom 1/4 in. (6mm) thick loose laid over the steel deck. Floor topping thickness shall be a min of 1 in. (25mm)

    HACKER INDUSTRIES INC — Type FIRM-FILL SCM 250


    Alternate Floor Mat Materials — (Optional) — Floor mat material nom 3/8 in. (10mm) thick loose laid over the steel deck. Floor topping thickness shall be a min of 1-1/4 in. (32mm)

    HACKER INDUSTRIES INC — FIRM-FILL SCM 400


    Alternate Floor Mat Materials — (Optional) — Floor mat material nom 3/4 in. (19mm) thick loose laid over the steel deck. Floor topping thickness shall be a min of 1-1/2 in. (38mm)

    HACKER INDUSTRIES INC — FIRM-FILL SCM 750


    2C. Floor Topping Mixture* — Compressive strength to be 2500 psi min. Minimum thickness to be 1 in. as measured from the top plane of the deck. Refer to manufacturer's instructions accompanying the material for specific mix design.

    FORMULATED MATERIALS LLC — Types FR-25, FR-30, and SiteMix.


    Floor Mat Materials* — (Optional, For use with Item 2A) — Floor mat material loose laid over the subfloor. Refer to manufacturer's instructions regarding the minimum thickness of floor topping over each floor mat material.

    FORMULATED MATERIALS LLC — Types M1, M2, M3, R1, and R2.


    3. Structural Steel Members* — Total Joist™ - Minimum 7.5 in. deep, 20 GA minimum thickness, spaced maximum 24 in. OC. Web stiffeners screwed to both ends of joists using 6-No.12-14, 1 in. long, self-drilling screws, and to steel C-shaped rim track using 3-No.12-14, 1 in. long, self-drilling screws.

    ISPAN SYSTEMS LP — Total Joist™


    4. Bridging* — Total Joist™ snap-on bridging, 1-7/8 in. by 5/8 in. by minimum 20 GA. bridging attached to bottom chords on each joist and located 8 ft - 0 in. apart or at mid-point of joist for shorter spans. Bridging attached to chords of each joist using 1-No.12-14, 3/4 in. long, self-drilling screw.

    Optional Bridging* (Not Shown) — Total Joist™ bridging, 1-7/8 in. by 5/8 in. by minimum 20 GA. Bridging installed perpendicular to joists through web holes and located 8ft- 0 in. apart or at mid-point of joist for shorter spans. Bridging attached to flange of web hole in each joist using 1 hex head, self-drilling, self-tapping #10 screw, 3/4 in. long. Alternatively, bridging may be attached to joists using minimum 3/4 in. by 3/4 in. by 20 GA. clip angle. Clip angle fastened to joist web and to bridging using 1 hex head, self-drilling, self-tapping #10 screw, 3/4 in. long.

    ISPAN SYSTEMS LP — Total Joist™ Snap-On Bridging, Total Joist™ Bridging


    5. Blocking* — (Not Shown) —Total Joist™ Blocking, 18 GA. Blocking attached to every fifth bridging location between joists using 2-No.12-14, 1 in. long, self-drilling screws
    5A. Alternative Blocking — (Not Shown) - Total Joist™ cut to fit the space between the two adjacent joists and attached to joists with 16 ga. 6 in. by 3 in. Angle connected to blocking and joist with 2-#12-14, 1 in. long. self-drilling screws on each leg of the angle.

    Total Joist™ Blocking, 18 GA. Blocking attached to every fifth bridging location between joists using 6 hex head, self-drilling, self-tapping #10 steel screws, 3/4 in. long.

    ISPAN SYSTEMS LP — Total Joist™ Blocking


    6. Batts and Blankets* — UL Classified, unfaced glass fiber insulation, nominal 3.5 in. thick, nominal density 0.5 lb/cu. ft. Insulation shall rest on the top of the bottom flange of each joist and the top of the resilient channels, and surround the wings on the bottom flange. Joints between batts in adjacent joist spaces shall be staggered and shall line up with resilient channels.
    7. Resilient Channels — Minimum 25 GA galvanized steel. Channels shall be spaced maximum 12 in. apart and attached to the bottom flange of each joist with one #7-3/4 in. long pan head self-drilling, self-tapping screw. At locations where gypsum board end joints occur, additional resilient channels shall be installed to provide screw attachments for the gypsum board ends. These additional channels shall be positioned so that the distance from the end of the board to the center of the first channel is 3 in. and from the board end to the center of the next channel is 12 in.
    7A. Steel Framing Members* — (Optional, Not Shown) — When it is desired to drop the ceiling below the bottom plane of the structural steel members (Item 3), a suspension system may be used in lieu of the resilient channels (Item 7). Main runners, cross tees, cross channels and wall angle as listed below:
      a. Main Runners — Nom 10 or 12 ft long , 15/16 in. or 1-1/2 in. wide face, spaced 4 ft. OC. Main runners suspended by min 12 SWG galv steel hanger wires spaced 24 in. OC a min of 4 in. below bottom flange of joists, twist tied to #10 - 3/4 in. long screws installed in the web, 1/2 in. from the bottom flange of the steel joists. Hanger wires to be located adjacent to main runner/cross tee intersections.
      b. Cross Tees — Nom 4 ft long, 1-1/2 in. wide face, installed perpendicular to the main runners, spaced 16 in. OC. Additional cross tees or cross channels used at 8 in. from each side of butted gypsum panel end joints. The cross tees or cross channels may be riveted or screw attached to the wall angle or channel to facilitate the ceiling installation.
      c. Cross Channels — Nom 4 ft long, installed perpendicular to main runners, spaced 16 in. OC.
      d. Wall Angle or Channel — Painted or galv steel angle with 1 in. legs or channel with 1 in. legs, 1-9/16 in. deep attached to walls at perimeter of ceiling with fasteners 16 in. OC. To support steel framing member ends and for screw-attachment of the gypsum panel.

      CGC INC — Type DGL


      USG INTERIORS LLC — Type DGL


    8. Gypsum Board* — Nominal 5/8 in. thick, 48 in. wide gypsum board installed with long dimension perpendicular to resilient channels. Gypsum board shall be attached to resilient channels using 1 in. long Type S drywall screws, spaced 8 in. OC in the field of each board. At the end joints, screws shall be located 1-1/2 in. and 4 in. from the board edge. At the side joints, screws shall be located 3 in. and 12 in. from the board end.

    CGC INC — Type C


    UNITED STATES GYPSUM CO — Type C


    USG BORAL DRYWALL SFZ LLC — Type C


    USG MEXICO S A DE C V — Type C


    8A. Gypsum Board* — For use when Steel Framing Members* (Item 7A) are used - One layer of 5/8 in. thick, 4 ft wide, installed with long dimension perpendicular to cross tees with side edges centered over main runners and joints centered over cross tees or channels. Fastened to cross tees or channels with 1 in. long Type S screws bugle-head screws spaced 8 in. OC with the screws located 4 in. from the mid-span of the cross tee or channel, and 1-1/2 in. from side edges of gypsum panel. Fastened to main runners with 1 in. long Type S bugle-head screws spaced midway between cross tees or channels. End joints of gypsum panels shall be staggered not less than 4 ft OC with adjacent gypsum panels end joints.

    CGC INC — Type C


    UNITED STATES GYPSUM CO — Type C, ULIX


    USG BORAL DRYWALL SFZ LLC — Type C


    USG MEXICO S A DE C V — Type C


    9. Joint System — (Not Shown) — Paper tape embedded in joint compound over joints and covered with 2 layers of compound with edges feathered out. Wallboard screw heads covered with 2 layers of compound.

    * 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 2018-11-19
BXUV.G587 G587 BXUV 100560153 DESIGN Active 20181119 20181119 720780001 131207001 720780001 730408054 287840003 730408054 130869004 100239807 130869004 100239807 130869004 130869004 130869004 130869004 130869004 P1751555 P1751555 100560153 100560153 100560153 846414010 100575661 846414005 730408054 P1802957 287840003 846414005 730408054 P1802957 287840003

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