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Design No. U419
<br />November 14, 2007
<br />Nonbearing Wall Ratings — 1, 2, 3 or 4 Hr (See Items 4 & 5)
<br />1. Floor and Ceiling Runners — (Not shown) — For use with Item 2 - Channel shaped, fabricated
<br />from rain 25 MSG corrosion -protected steel, min width to accommodate stud size, with min 1 in. long
<br />legs, attached to floor and ceiling with fasteners 24 in. OC max.
<br />1A, Floor and Ceiling Runners'" —blot shown - In lieu of Item 1 — For use with Item 2A;,
<br />proprietary channel shaped, min. 3-5/8 in, wide with 1 in. long legs, fabricated from min. 0.0150 in.
<br />(0.0146 in., min bare metal thickness) galvanized steel, attached to floor and ceiling with fasteners 24
<br />in. OC max,
<br />DIETRICH INDUSTRIES INC — UltraSTEELO.
<br />113, Floor and Ceiling Runners — (Nat shown - In lieu of Item 1) — For use with Item 2A,
<br />proprietary channel shaped, min, 2-9/16 in, wide with 1-3/16 in, wide flanges, fabricated from min.
<br />0,0150 in, galvanized steel, attached to floor and ceiling fasteners 24 in, OC, max.
<br />DIETRICH INDUSTRIES INC — UltraSTEEL®,
<br />2. Steel Studs — Channel shaped, fabricated from ruin 25 MSG corrosion -protected steel, min width
<br />as indicated under Item S, min 1-1/4 in. flanges and 1/4 in, return, spaced a max of 24 in. GC. Studs
<br />to be cut 3/8 to 3/4 in. less than assembly height.
<br />2A, Steel Studs* — In lieu of Item 2 - Proprietary channel shaped studs, min. width as indicated
<br />under Item 5, min. 1-1/4 in, long legs and 1/4 in. long folded back return flange legs, fabricated frorn
<br />min. 0,0155 in. (0,0149 in,, rein bare metal thickness) galvanized steel, spaced a max of 24 in. OC.
<br />Studs to be cut 3/8 to 3/4 in. less than assembly height. Allowable use of studs is shown in the table
<br />below,. For direct attachment of gypsum board only,
<br />DIETRICH INDUSTRIES INC — UltraSTEEL(D.
<br />2B. Steel Studs — (As an alternate to Item 2, For use with Item 5B) Channel shaped, fabricated
<br />from rain 20 MSG (0.0327 in, thick) corrosion -protected or gale steel, 3-1/2 in. rein width, rein 1-1/2
<br />in. flanges and 1/4 in. return, spaced a max of 16 in. OC. Studs friction -fit into floor and ceiling
<br />runners. Studs to be cut 5/6 to 3J4 in. less than assembly height.
<br />3, Wood Structural Panel Sheathing — (Optional, For use with Item 5 Only.) (Not Sftcsv-rn) 4 ft
<br />wide, 7/16 in. thick oriented strand board (OSB) or 15/32 in. thick structural 1 sheathing (plywood)
<br />complying with DOC PS1 or PS2, or APA Standard PRP-108, manufactured with exterior glue, applied
<br />horizontally or vertically to the steel studs. Vertical joints centered on studs, and staggered one stud
<br />space from wallboard joints. Attached to studs with flat -head self -drilling tapping screws with a min.
<br />head diam. of 0.29Z in. at maximum 6 in, OC. in the perimeter and 12 in. OC. in the field.
<br />4. Batts and Blankets* — (Required as indicated under Item 5) — Mineral wool Batts, friction fitted
<br />between studs and runners. Min nom thickness as indicated under- Item 5. See Batts and Blankets
<br />(BKNV or BZ32) Categories for names of Classified companies.
<br />4A. Batts and Blankets` — (Optional) — Placed in stud cavities, any glass fiber or mineral wool
<br />insulation bearing the UL Classification Marking as to Surface Burning Characteristics andfar Fire
<br />Resistance. See Batts and Blankets {BKNV or B232) Categories for names of Classified
<br />companies,
<br />5. Gypsum Board* — Gypsum panels with beveled, square or tapered edges, applied vertically or
<br />horizontally. Vertical joints centered over studs and staggered one stud cavity on opposite sides of
<br />studs. Vertical joints in adjacent layers (multilayer systems) staggered one stud cavity. Horizontal
<br />joints need not be backed by steel framing. Horizontal edge joints and horizontal butt joints on
<br />opposite sides of studs need not be staggered. Horizontal edge joints and horizontal butt joints in
<br />adjacent layers (multilayer systems) staggered a min of 12 in. The thickness and number of layers
<br />for the 1 hr, 2 hr, 3 hr and 4 hr ratings are as follows:
<br />Wallboard Protection on Each Side of Wall
<br />Min
<br />Min
<br />No. of
<br />Min
<br />Stud
<br />Stud
<br />Layers
<br />Thkns of
<br />Depth,
<br />Depth,
<br />& Thkns
<br />Insulation
<br />Rating
<br />Item 2
<br />Item 2A
<br />of Panel
<br />(Item 4)
<br />........
<br />1
<br />3.1/2
<br />3.5/8
<br />1 layer, 5/8 in. thick
<br />Optional
<br />1
<br />2 1/2
<br />3-5/8
<br />1 layer, 1/2 in. thick '
<br />1-1/2 in.
<br />1
<br />1 5/S
<br />3-5/8 .
<br />..............
<br />1 layer, 3/4 in. thick
<br />Optional
<br />..............................................................................................
<br />2
<br />1-5/8
<br />2-1/2
<br />2 layers, 112 in. thick
<br />Optional
<br />2
<br />1 5/8
<br />2-1/2
<br />2 layers, 5/8 in. thick
<br />Optional
<br />2
<br />.................
<br />3 1/2
<br />3 5/$
<br />- ...............- -....r
<br />1 layer, 3/4 in. thick I
<br />3 in.
<br />3
<br />....
<br />1-5/8
<br />2-1/2
<br />3 layers, 1/2 in. thick :
<br />Optional
<br />3
<br />........ ................
<br />1-5/8
<br />........
<br />2-1/2 :
<br />........
<br />2 layers, 314 in. thick :
<br />Optional
<br />.................................
<br />3
<br />.......
<br />1-5/6
<br />2-1/2
<br />3 layers, 5/8 in. thick.
<br />Optional
<br />.......................................................
<br />4
<br />1 5/$
<br />2 102
<br />4 layers, 5/6 in, thick !
<br />Optional
<br />.......
<br />4
<br />.........
<br />1-5/8
<br />.......
<br />2-1/2
<br />4 layers, 1/2 in,, thick ;
<br />Optional
<br />.........
<br />4
<br />2-1/2 ;
<br />2.1/2
<br />.................
<br />2 layers, 314 in. thick
<br />2 in.
<br />CANADIAN GYPSUM COMPANY
<br />— 1/2 in. thick Type C, IP-X2 or IPC-AP; WRC, 5/8 in. thick Type
<br />AR, C, IP-AR, IP-X1, IP-X2, IPC-AR,
<br />SCX, SHX, WPX or WRC, 3/4 in. thick Types IP-X3 or
<br />ULTRACODE
<br />UNITED STATES GYPSUM CO — 1/2 in, thick Type C, IP-K2, IPC-AR or WRC; 5/8 in. thick Type
<br />SCX, SHX, WRX, IP-XI, AR, C, WRC, FRX-G, IP-AR, IP-X2, IPC-AR ; 3/4 in. thick Types IP-X3 or
<br />ULTRACODE
<br />USG MEXICO S A DE C V — 1/2 in. thick Type C, IP-X2, IPC-AR or WRC, 5M in. thick Type AR, C,
<br />IP-AR, IP-XI, IP-X2, IPC-AR, SCX, SHX, WRX, WRC or; 3/4 in. thick Types IP-X3 or UMACOGE
<br />When Item 7B, Steel Framing Members*, is used, Nonbearing Wall Rating is limited to 1 Hr. Min. stud
<br />depth is 3-1/Z in., min. thickness of insulation (Item 4) is 3 in., and two layers of gypsum board
<br />thick) channels in Item 6 , One layer
<br />panels (112 in. or 5/8 in. -hick) shall be attached to furring _harm-ls as
<br />of gypsum board panels (112 in, or 5/6 in. think) attached to opposite side of stud without furring
<br />channels as described in Item 6.
<br />5A, Gypsum Board* — (As an alternate to Item 5) — 5/8 in. thick, 24 to 54 in. wide, applied
<br />horizontally as the outer layer to one side of the assembly. Secured as described in Item 6.
<br />CANADIAN GYPSUM COMPANY — Type SHX.
<br />UNITED STATES GYPSUM CO — Type FRX-G, SHX,
<br />USG MEXICO S A DE C V — Type SHX.
<br />513. Gypsum Board* — (As an alternate to Item 5 when used as the base layer an one or both sides
<br />of wall, For direct attachment only, not to be used with Item 3) - Nom 5/8 in, thick lead backed
<br />gypsum panels with beveled, square or tapered edges, applied vertically, Vertical joints centered over
<br />studs and staggered min 1 stud cavity on opposite sides of studs. Wallboard secured to studs with 1-
<br />1/4 in. long Type S-12 steel scra4gs spaced a in, CSC at perimeter and 12 in, 0C in the field,
<br />RAY -BAR ENGINEERING CORP — Type RB-LBG
<br />6. Fasteners — (Not shown) — For use with Item 2 - Type S or S-12 steel screws used to attach
<br />panels to studs (Item 2) or furring channels (Item 7). Single layer systems: 1 in. long for 1/2 and
<br />5/8 in. thick panels or 1-1/4 in. long for 3/4 in. thick panels, spaced 8 in. OC when panels are applied
<br />horizontally, or 8 in. OC along vertical and bottom edges and 12 in. OC in the field when panels are
<br />.applied vertically. Two layer systems! First layer- 1 in. long for 1/2 and 5/8 in, thick panels or 1-1/4
<br />in. long for 3/4 in. thick panels, spaced 16 in. OC. Second layer- 1-5/8 in, long for 1/2 in,, 5/9 in.
<br />thick panels or 2-1/4 in. long for 314 in, thick pan els, spaced 16 iri. OC with screws offset 8 in. from
<br />first layer, Three -layer systems: First layer- 1 in. Icing for 112 in,, 5/8 in, thick panels, spaced 24
<br />in, OC. Second layer- 1-5/8 in. long for 1/2 in., 5,l8 in. thick panels, spaced 24 in. OC. Third layer- 2-
<br />1/4 in. long for 112 in., 5/8 in. thick panels or 2-5J8 in. long for 5/8 in. thick panels, spaced lc in, OC.
<br />Screws offset min 6 in, from layer below, Four -layer systems: First layer- 1 in. long far 1/Z in,, 5/6
<br />in. thick panels, spaced 24 in, OC. Second layer- 1-5/8 in. long for 1/2 in., 5/8 in, thick panels,
<br />spaced 24 in, OC:, Third layer- 2-1/4 in, long for 1/2 in, thick panels or 2-5/8 in. long for 5/8 in. thick
<br />panels, spaced 24 in. OC. Fourth layer- 2-5/0 in. long for 1/2 in. thick panels or 3 in, long for 5/8 in.
<br />thick panels, spaced 12 in. CSC. SGrews offset min 6 in. from layer below.
<br />6A. Fasteners — (blot shown) —For use with Item 2A - Type S or S-12 steel screws used to attach
<br />panels to studs (Item 2). Single layer systems: 1 in. long for 1/2 and 5/6 in, thick panels or 1.1/4
<br />in. long for 3/4 in. thick panels, spaced 8-1/2 in. 0C with additional screv4s 1 in. and Z-1/2 in, from
<br />edges of the board when panels are horizontally. or 6 in. OC along vertical and bottom edges and 12
<br />in. OC in the field when panels are applied vertically. Two layer systems applied vertically: First
<br />layer- 1 in. long for 1/2 and 5/0 in, thick panels or 1-1/4 in, long for 3/4 in, thick panels, spaced 16 in,
<br />JC. Second layer- 1-5/6 in, long for 1/2 in,, 5/8 in. thick panels or 2-1/4 in. long far 3/4 in, thick
<br />panels, spaced 16 in, OC with screws offset S in. fromfirst layer. Trio layer systems applied
<br />horizontally: First layer- 1 in. long for 1/2 and S/$ in, thick panels er 1-1/4 in, long for 3/4 in, thick
<br />panels, spaced 16 in. OC starting 8 in. from each edge of the board with an additional screw placed 1-
<br />1/4 in. from each edge of the board. Second layer- 1-S/8 in. long for 1/2 in., 5/8 in. thick panels or 2-
<br />1/4 in. long for 3/4 in, thick panels, spaced 16 in. OC starting 8 in. from each edge of the board with
<br />an additional screw placed 1-1/4 in. from each edge of the board with screws offset 8 in. from first
<br />layer. Three -layer systems: First layer- 1 in. long for 1/2 in,, SJ8 in, thick panels, spaced 24 in.
<br />OC. Second layer- 1-5/8 in. long for 1/2 in,, 5/8 in. thick panels, spaced 24 in, OC. Third layer- 2-1/4
<br />in. long for 1/2 in., 5/8 in. thick panels or 2-5/8 in. long for 5/8 in, thick panels, spaced 12 in. OC.
<br />:Screws offset min 6 in. from layer below. For all layers, an additicinal screw shall be placed 1.1/4 in.
<br />from each edge of the board, Four -layer systems: First layer- 1 in. long for 1/2 in., 5/8 in. thick
<br />panels, spaced 24 in. OC. Second layer- 1-5/8 in. long for 112 in., 5/0 in, thick panels, spaced 24 in.
<br />OC. Third layer- Z-1/4 in. long for 1/2 in, thick panels ar 2-5%8 in, long for 5/8 in. thick panels, spaced
<br />24 in. OC. Fourth layer- 2-5/8 in. long for 1/2 in. thick panels or 3 in. long for 5/6 in. thick panels,
<br />spaced 1Z in, QC, Screws offset ruin 6 in. from layer below, For all layers, an additional screw shall be.
<br />placed 1-1/4 in. from each edge of the board,
<br />7, Furring Channels (Optional, not shown, for single or double layer systems) Resilient furring
<br />channels fabricated from min 25 MSG corrosion -protected steel, s paced vertically a max. of 24 in, OC.
<br />Flange portion attached to each intersecting stud with 112 in, long Type S-12 steel screws. Notfor use
<br />voith Item 5A.
<br />7A, Steel Framing Members (Not Shown)* — (Optional on one or both sides, not shown, for
<br />single or double layer systems) — As an alternate to Item 7, furring channels and Steel Framing
<br />Members as described below:
<br />a, Furring Channels — Formed of No. 25 MS'G gale steel, 2-3/8 in. wide
<br />by 7/8 in. deep, spaced max.. 24 in. OC perpendicular to studs. Channels
<br />secured to studs as described in Item b. Gypsum board attached to furring
<br />channels as described in Item 6. Not for use with Item 5A,
<br />b, Steel Framing Members* — used to attach furring channels (Item
<br />7Aa) to studs (Item 2). Clips spaced max, 48 in. OC. RSIC-1 clips secured
<br />to studs with No, 6 x 1-1/2 in, minimum self -drilling, S-12 steel screw
<br />through the center grommet, RSIC-V clips secured to studs with No. 8 x
<br />9/16 in. minimum self -drilling, S:-12 steel screw through the center hole.
<br />Furring channels are friction fitted into clips.
<br />PAC INTERNATIONAL INC — 7ypes RSIC-1, RSIC-V.
<br />7B. Steel Framing Members (Optional, Not S.hown)'* — As an alternate to Item 7, furring
<br />channels and Steel Framing Members on only one side of studs as described below:
<br />a. Furring Channels — Formed of No, 25 MSG gal/ steel, spaced 24 in.
<br />OC perpendicular to studs. Channels secured to studs as described in Item
<br />In, Batts and Blankets placed in $tud cavity as described in Item 5. Two
<br />layers of gypsum board attached to furring channels as describer) in Item S.
<br />Not for use with Item 5A.
<br />b, Steel Framing Members* — used to attach furring channels (Item
<br />7BQ) to one side of studs (Item 2) only, Clips spaced 48 in, OC., and
<br />secured to studs with two Ala. 8 x 2-1/2 in. coarse drywall screws one
<br />through the hole at each end of the clip. Furring channels are friction fitted
<br />into clips.
<br />KINETICS NOISE CONTROL INC — Type Isomax
<br />6. Joint Tape and Compound — Vinyl or casein, dry or premixed joint compound applied in two
<br />coats to joints and screw heads of outer layers. Paper tape, nom 2 in. wide, embedded in first layer of
<br />compound over all joints of outer layer panels. Papertape and joint compound may be omitted when
<br />gypsum panels are supplied with a square edge.
<br />9. Siding, Brick or Stucco — (Optional, not shaven) — Aluminum, vinyl or steel siding, brick vaneer
<br />or stucco, meeting the requirements of local code agencies, installed over gypsum panels. Brick
<br />veneer attached to studs ,with corrugated metal wall ties attached to each stud with steel screws, not
<br />more than each sixth course of brick.
<br />10. Caulking and Sealants* — (Optional, not shown) — A bead of acoustical sealant applied around
<br />the partition perimeter for sound control.
<br />UNITED STATES GYPSUM CO — Type AS
<br />11. Lead Batten Strips — (Not Shown, For Use With Item 55) - lead batten strips, min 1-1/2 in.
<br />wide, max 10 ft long with a max thickness of 0.125 in. Strips placed on the interior face of studs and
<br />attached from the exterior face of the stud with two 1 in. long Type S-12 pan head steel screws, one
<br />at the top of the strip and one at the bottom of th:e strip. Lead batten strips to have a purity of 99.9%
<br />meeting the Federal specification QQ-L-201f, Grande "C". Lead batten strips required behind vertical
<br />joints of lead backed gypsum wallboard (Item SB:) and optional at remaining stud locations. Required
<br />behind vertical joints.
<br />12. Lead Discs or Tabs — (Not ShQwn, For Use With Item 5B) - Used in lieu of or in addition to the
<br />lead batten strips (Item 11) or optional at other locations - Max 3/4 in. diam by max 0.1Z5 in, thick
<br />lead discs compression fitted or adhered over steel screw heads or max 1/2 in. by 1-1/4 in. by max
<br />0,125 in. thick lead tabs placed on gypsum board's (Item SB) underneath screw locations prior to the
<br />installation of the screws. Lead discs or tabs to have a purity of 99.9% meeting the Federal
<br />specification QQ-L-201f, Grade "C".
<br />*Bearing the UL Classification Mark
<br />WOOD TRUSSES. GYPSUM WALLBOARD
<br />Base layer tttlse X gis'l.,_:urra walllboard applied at right anc-files to, wood r of t€ t sse, 2W
<br />O.r. vitl-r 11J4" Type W Or S drywall . rre-Nis 24 r,<�, Face layer 5.8, t; pe X gyl sure
<br />wallb,oer•d Or �f'°i Burn ver-:eer base -if. rigght angles tc,; tr-us e-S, 0 ifl I T"Wi Type or
<br />S -IrylvWl screw:s 12" D,cc at joints ar,d intemedia.te trLr,. S&5 �Wld 1 t12" T to G dr all
<br />s r[ vvs 12" o,c, placed 2'" bacl'E .; n either sicle cof errcl jaintws. >..jOlrrts sf net 24" fY:<r-rl bays
<br />layer joints, 1VVo>d trlms. ,s s.ralsport' j ia�` W001 StrU011ir:°al �rFV-rel- <@, pliecl at right �".r`t��les
<br />to tru.,.5ses with 8d r,ail ,. r' rypropriato roof arriverim.
<br />V4 i9ty: 5 PSI`
<br />Fire Test: FM FC 172, 2- 2 3J.;
<br />ITS, 9-6-98
<br />EXISTING WOOD
<br />TRUSSES TO REMAIN
<br />FIRE CAULK JOINTS
<br />WITH 3M CP 25 W5+ OR
<br />APPROVED EQUAL ;
<br />EXIST. CONCRETE SLAB TO REMAIN
<br />1'-0'
<br />11
<br />I -HOUR ASSEMBLY
<br />GA FILE •RC2602
<br />(2) LAYERS OF 5/8'
<br />GYPSUM 50ARD.
<br />EXTEND 12' MIN. PAST
<br />WALLS.
<br />1-HOUR WALL
<br />ASSEMBLY
<br />UL OU4113
<br />5/8, GYPSUM 5D.
<br />ON EACH SIDE OF
<br />3-1/2' 20 Ga.
<br />METAL STUDS g
<br />16 O.G.
<br />4
<br />LU
<br />t-
<br />4
<br />FIRE CAULK JOINTS
<br />WITH 31" I CP 25 W5+ OR
<br />APPROVED EQUAL
<br />hlAL_L. SECT I ON
<br />rt.2 SCALE: 3/4" = I'-O"
<br />}
<br />r2 GGSS LADDER
<br />SCALE: 3/4" = I'-V
<br />S"x(0"x3/16"
<br />STEEL ANGLE
<br />1/2' RAMSET DYNABOLT
<br />OR EQUAL - (2) PER
<br />BRACE
<br />6
<br />r,4DETAIL
<br />SCALE: I' = I'-0°
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