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Design No. U404
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<br />Fire Resistance Ratings - ANSIjUL 263
<br />Design %System/Construction/Assembly Usage Disclaimer
<br />• Authorities Having Jurisdiction should be consulted in all cases as to the particular requirements covering the installation and
<br />use of UL Listed or Classified products, equipment, system, devices, and materials.
<br />e Authorities Having Jurisdiction should be consulted before construction.
<br />• Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for
<br />compliance with applicable requirements- The published information cannot always address every construction nuance
<br />encountered in the field.
<br />e When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the
<br />product manufacturer noted for the design. Users of fire resistance assemblies are advised to consult the general Guide
<br />Information for each -product category and each group of assemblies. The Guide Information includes specifics concerning
<br />alternate materials and alternate methods of construction.
<br />it Onbj products which bear UL's Mark are considered as Classified, Listed, or Recognized.
<br />Fire Resistance Ratings i ANSI,/UL 263
<br />See er l nfo t` n for Fire Resistance Ratincis, -_ANAL 263
<br />Design No. U404
<br />March 19, 2012
<br />Bearing Wall Rating 1 and 2 Hr (See Items 2, 3 and 5)
<br />Nonbearing Wall Ranting — 1 and 2 Hr (See items 2, 3 and 5)
<br />Load Restricted for Canadian Applications — Sae Guide BXUW
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<br />1. Steel Floor and Ceiifing Runners — (Not Shown) `— Channel shaped, 3-1/2 in. wide by 1-1/4 in. deep,
<br />fabricated from min 20 MSG (0.0329 in., min bare metal thickness) galvanized steel. Attached to floor and
<br />ceiling with steel fasteners spaced 24 in. OC max.
<br />2. Steel Studs , fabricated: from min 20 MSG (0.0329 in., min bare metal thickness)
<br />galvanized steel , spacea max 16 in. OC. For bearing walls, studs shall be designed in accordance with the
<br />current edition of the Specification for the Design of Cam -Farmed Steel Structural Members by the American
<br />Iron and Steel Institute. All design details enhancing the structural integrity of the bearing wall assembly,
<br />including the axial design toad of the studs, shall be as specified by the steel stud designer and/or producer
<br />and shall meet the requirements of all applicable local code agencies. Steel studs attached to floor and
<br />ceiling runners with 3/8 in. long Type S-12 steed screws on both sides of the studs or by welded or bolted
<br />connections designed in accordance with the AISI specifications. For nonbearing walls, studs to be cut 3/8 to
<br />314 in. less than assembly height and friction -fitted into floor and ceiling runners .
<br />2A. Steel Studs — (As an alternate to Item 2, For use with Items SA & 55) Channel shaped, fabricated from
<br />min 20 MSG corrosion -protected or gals steel, 3-1/2 in. ruin width, min 1-1/2 in. flanges and 1/4 in. return,
<br />spaced a max of 16 in. OC. Studs friction -fit into floor and ceiling runners. For nonbearing walls, studs to be
<br />cut 5/8 to 314 in. less than assembly height.
<br />3. Camentitious Backer Units* — 1/2 in. or S/8 in. thick, applied vertically or horizontally with vertical
<br />joints centered over studs. Fastened to studs and runners with corrosion resistant, chamfered, ribbed wafer
<br />head screws with a minimum head diameter of .400 inch. For nonbearing systems, fastened to studs and
<br />bottom runners with the uppermost screws placed 112 in. to 2 in. below the bottom edge of the leg of the
<br />top runner. Horizontal joints need not be backed by framing. 1 Hr System - Screws shall be min 1-1/4 in.
<br />long and spaced a max of 8 in. OC. All vertical joints staggered one stud cavity from gypsum board vertical
<br />joints on tha opposite side of studs. Horizontal cadge joints and horizontal butt joints on opposite sides of
<br />studs need not be staggered. 2-Hr System - For the base layer in Configuration B, the screws shall be min
<br />1-1/4 in. long and spaced a max of 12 in. OC. For the face layers, screws shall be 1-5/8 in. long and spaced
<br />a max of 8 in. OC. All face layer joints offset min 12 in. from underlying base layer joints. Joints in either
<br />layer need not be staggered from ,joints on the opposite side of the wall -
<br />UNITED STATES GYPSUM CO — DUROCK Exterior Cement Board, or DUROCK Brand Cement Board.
<br />4. Batts and Blankets* — Min 3 in. thick mineral wood insulation baits, friction -fitted between studs .
<br />IIG 14INWOOL L L C _ Type SAFE
<br />THERMAFIBER INC — Type SAFE.
<br />S. Gypsum Board* -- 5/8 in. thick,. with square or tapered edges, applied vertically or horizontally with
<br />vertical joints centered over studs. Horizontal joints need not be backed by framing. Fastened with Type S-
<br />12 screws. I-Hr System - For vertical application, fastened to studs and runners with 1 in. long screws
<br />spaced max 8 in. OC at vertical edges and spaced max 12 in. OC in the field. For horizontal application,
<br />fastened to studs and runners with 1 in. long screws spaced relax 8 in- OC. Vertical joints staggered one stud
<br />cavity from cement board vertical joints on apposite side of studs. Horizontal edge joints and horizontal butt
<br />joints on opposite sides of studs need not be staggered. 2-Hr System - Base layer with an overlying
<br />gypsum .board face layer, fastened with 1 in. long screws spaced max 16 in. OC to studs and runners. Base
<br />layer with an overlying cement board face layer, fastened with 1 in. long screws spaded max 12 in. OC to
<br />studs and runners. Face layers fastened with 1-5/8 in. long screws spaced max 16 in. OC to studs and
<br />runners with: screws offset 8 in. from face layer screws. Face layer joints offset ruin 12 in. from base layer
<br />joints. Joints in either layer need not be staggered from joints on the opposite side of the wall. When used in
<br />widths other than 48 in., gypsum panels to be installed horizontally.
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<br />CGC INC — Types AR, C, IP-AR, IP-XI, IP-X2, IPC: AR, SC)(, SHX, SGX, ULX, WIC or WRX.
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<br />UNITED STATES GYPSUM CO -- Type AR, C, FRX-G, IP-AR, IP-X1, IP-X2, IPC-AR, SCX, SHX, ULX, WRC,
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<br />WRX, USGX (Joint tape and compound, Items 6 and 7, optional for use with Type USGX).
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<br />USG MEXICO S A DE C V -- Types Alt, C, IP-AR, IP-X1, IP-X2, IPC-AR, SCX, SHX, ULX, WRC, WRX.
<br />5A. Gypsum Board* — (As an alternate to Item 5 may be used as the base layer on one or both sides of
<br />wall, For direct attachment only) - Nom 5/8 in- thick lead backed gypsum panels with beveled, square or
<br />tapered edges, applied vertically. Vertical joints centered over studs and staggered min 1 stud cavity on
<br />opposite sides of studs. Wallboard secured to studs with 1-1/4 in. long Type S-12 steel screws spaced 8 in.
<br />OC at perimeter and 12 in. OC in the field.
<br />RAY -BAR ENGINEERING CORP --- Type RB-LBG
<br />5B_ gypsum Board* -- (As an alternate to Item 5 may be used as the base layer on one or both sides of
<br />wall, For direct attachment only). Nominal S/8 in. thick lead backed gypsum panels with beveled, square or
<br />tapered edges, applied vertically. Vertical joints centered over studs and staggered min 1 stud cavity on
<br />compression fitted or adhered over steel screw heads or max 1/2 in. by 1-114 in, by max 0.125 in. thick lead
<br />tabs placed on gypsum boards (Item 5A) underneath screw locations prior to the installation of the screws.
<br />opposite sides of studs. Wallboard secured to studs with i-2/�l in. long Type 5-12 (orb by 1-1J4 in. long
<br />Lead discs or tabs to have a purity of 99.9% meeting the Federal specification QQ-L-201f, Grade "C".
<br />bugle head fine driller) steel screws spaced 8 in. OC at perimeter and 12 in. OC in the field.
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<br />10A. stead Des — (Not Shown, for use with Item 5C) Max 5/16 in. diam by max 0.140 in. thick lead discs
<br />NEW ENGLAND LEAD BURNING CO INC, DBA
<br />compression fitted or adhered over steel screw heads. Lead discs to have a purity of 99.9% meeting the
<br />Federal Specification QQ-L-201f, Grades "A, B, C or D".
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<br />NELCO — Nelco
<br />11. Lead Batten Strips — (Not Shown, For Use with Item 5B) Lead batten strips, 2 in. wide, max 10 ft long
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<br />with a max thickness of 0.142 in. Strips placed on the face of studs and attached to the stud with two min. 1
<br />in. long Type S-8 head steel screws, at the top of the strip and the bottom of the strip
<br />min. pan one one at
<br />SC. Gypsum Board* -- (As an alternate to Item 5) For Direct Application to Studs Only- For use as the
<br />or with one min. 1 in. long min. Type S-8 pan head steel screw at the top of the strip. Lead batten strips to
<br />have a purity of 99.9% meeting the Federal specification QQ-L-201f, Grade "C". Lead batten strips required
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<br />base layer or as the face layer. Nora 518 in. thick lead backed gypsum panels with beveled, square or
<br />tapered edges, applied vertically. Vertical joints centered over studs and staggered min 1 stud cavity on
<br />behind vertical joints of lead backed gypsum wallboard (Item 58) and optional at remaining stud locations.
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<br />opposite sides of Studs. Wallboard secured to studs with 1-5/$ in. long Type 5-12 steel screws spaced $ in,
<br />OC at perimeter and 12 in OC in the field when applied as the base layer. When applied as the face layer
<br />12. Lead Tabs -- (Not Shown, For Use with Item 5B) 2 in. wide, 5 in. long with a max thickness of 0.142 in.
<br />Tabs friction -fit around front face of stud, the stud folded back flange, and the back face of the stud. Tabs
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<br />length to be increased to 2-1/2 in. Lead batten strips required behind vertical joints of lead backed
<br />stud locations. Lead batten 2 in. ft
<br />required at each location where a screw (that secures the gypsum boards, Item 5B) will penetrate the steel
<br />"C".
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<br />gypsum wallboard and optional at remaining strips, min wide, max 10
<br />stud. Lead tabs to have a purity of 99.9% meeting the Federal specification QQ-L-201f, Grade Lead tabs
<br />long with a max thickness of 0.140 in. placed on the face of studs and attached to the stud with two 1 in.
<br />may be held in place with standard adhesive tape if necessary.
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<br />long Type S-8 pan head steel screws, one at the top of the strip and one at the bottom of the strip. Lead
<br />fitted heads.
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<br />discs, max 5/16 in. diam by max 0.140 in. thick. compression or adhered over the screw Lead
<br />batten strips and discs to have a purity of 99.9% meeting the Federal specification QQ-L-201f, Grades "A, B,
<br />for face layer lead backed board be
<br />C or D". Fasteners gypsum panels (Item 5) when installed over to min 2-
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<br />MAYCO INDUSTRIES INC — Type X-Ray shielded Gypsum
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<br />5D. 'Gypsum Board* — ((As an alternate to Items 5 may be used as the base layer on one or both sides of
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<br />wall, For direct attachment only)) For Direct Application to Studs Only- Nom 5/8 in. thick lead backed
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<br />gypsum panels with beveled, square or tapered edges, applied vertically. Vertical joints centered over studs
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<br />and staggered min 1 stud cavity on opposite sideof studs. Wallboard secured to studs with 1-1/4 in. long
<br />Type S-12 steel spaced 8 in. OC at 12 in. OC in the field. Lead batten rein 2 in.
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<br />screws perimeter and strips,
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<br />wide, max 8 ft tong with a max thickness of 0.14 in. placed on the face of studs and attached to the stud
<br />with construction adhesive and two 1 in. long Type S-12 pan head steel screws, one at the top of the strip
<br />and one at the bottom of the strip. Lead discs, nominal 3/8 in. diam by max 0.085 in. thick. Compression
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<br />fitted or adhered over the screw heads. Lead batten strips and discs to have a purity of 99.9% meeting the
<br />"C". layer
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<br />Federal specification QQ-L-201f, Grade Fasteners for fare gypsum panels (Item 5) when installed
<br />over dead backed board to be min 2-1/2 in. Type S-12 bugle head steel.
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<br />RADIATION PROTECTION PRODUCTS INC —Type RPP-LBG
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<br />6. Joints — Covered with glass fiber mesh tape and latex modified Portland cement mortar or basecoat, or
<br />Type I organic adhesive,
<br />7_ Joints — When tapered edge gypsum board is used, face layer joints covered with joint compound and
<br />paper tape. As an alternate, gypsum veneer plaster may be applied to the entire surface of Classified veneer
<br />baseboard with joints reinforced. When square -edge gypsum board is used, treatment of joints is optional.
<br />8. Vapor Retarder, Water Barrier or Weather Resin#ive Barrier — (Optional — Not shown) — As
<br />required.
<br />9. Lead Batten Strips — (Not Shown, For use With item 5A) - Lead batten strips, min 1-1/Z In. wide, Max
<br />10 ft long with a max thickness of 0-12S in. Strips placed on the interior face of studs and attached from the
<br />exterior face of the stud with two 1 in. long Type S-12 pan head steel screws, one at the top of the strip and
<br />one at the bottom of the strip. Lead batten strips to have a purity of 99.9% meeting the Federal specification
<br />QQ-L-201f, Grade "C". Lead batten strips required behind vertical joints of dead backed gypsum wallboard
<br />(Item 5A) and optional at remaining stud locations. Required behind vertical joints.
<br />9A. Lead Batten Skips — (Not Shown, for use with Item 5C) Lead batten strips, 2 in. wide, max 10 ft long
<br />with a max thickness of .0140 in. Strips placed on the face of studs and attached to the stud with two min. 1
<br />in. long min. Type S-8 pan head steel screws, one at the top of the strip and one at the bottom of the strip
<br />or with one min. 1 in. tong min. Type S-8 pan head steel screw at the top of the strip. Lead batten strips to
<br />have a purity of 99.91% meeting the Federal specification QQ-L-201f, Grades "A, B, C or D". Lead batten
<br />strips required behind vertical joints of lead backed gypsum wallboard (Item 5) and optional at remaining
<br />stud locations.
<br />10. Lead Discs or Tahs — (Not Shown, For use With Item SA) - Used in lieu of or in addition to the lead
<br />batten strips (Item 9) or optional at other locations - Max 3/4 in. diam by max 0.125 in. thick lead discs
<br />ARKAY ENGINEERING INC. '
<br />STRUCTURAL ENGINEE
<br />-1
<br />RICHARD L. KIDDEY .E. 1
<br />FLORIDA LICENS UMBER 3 296
<br />I HERBY CERTIFY THAT THE PLANS AND SPECIFICATIONS
<br />WERE PREPARED BY ME OR UNDER MY DIRECT SUPERVISION
<br />ARE IN COMPLIANCE WITH CHAPTER 16, SECTION 1609 OF THE
<br />FLORIDA BUILDING CODE 2017 6TH ADDITION AND ASCE 7-10
<br />FOR 139 MPH WIND ZONE RISK CATEGORY II
<br />ARKAY # 17915
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