19 Feb See General Information for Fire-resistance Ratings – ANSI/UL Design No. U February 19, Nonbearing Wall Ratings — 1, 2, 3 or. Fire Rated System Design – UL U or UL U or ULC W Sheetrock® Brand Gypsum Base Imperial® Firecode® C – mm (1/2″) (UL Type IP-X2). Fire Rated System Design – UL U or UL U or ULC W CGC Sheetrock® Brand Mold Tough® Firecode® C Panels – mm (1/2″) (UL Type C).
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BXUV.U – Fire Resistance Ratings – ANSI/UL
Screws offset min 6 in. Tabs friction-fit around front face of u491, the stud folded back flange, and the back face of the stud. Vertical Application – The gypsum board is to be installed on each side u4119 the studs with 1 in. Horizontal edge joints and horizontal butt joints in adjacent layers multilayer systems staggered a min of 12 in.
The thickness and number of layers for the 1 hr, 2 hr, 3 hr and 4 hr ratings are uul follows: Screws offset min 6 in. Type S-8 pan head steel screws, one at the top of the strip and one at the bottom of the strip or with one min.
Vertical joints in adjacent layers multilayer systems staggered one stud cavity. Vertical joints centered over studs and staggered one stud cavity on opposite sides of studs.
Assembly – UL U419 or ULC W453
Tabs required at each location where a screw that secures the gypsum boards, Item 5E will penetrate the steel stud. OC perpendicular to studs. Horizontal edge u491 and horizontal butt joints in adjacent layers multilayer systems need not be staggered. Lead batten strips required behind vertical joints of lead backed gypsum wallboard and optional at remaining stud locations.
Vertical joints are to be centered over studs and staggered one stud cavity on opposite sides of studs. Resilient channels are secured to clips with one No.
Two layers of gypsum board attached to furring channels as described in Item 5. Gypsum board attached to resilient channels as described up Item 5. Resilient channels are secured to clips with one No. Placed in stud cavities, any min. Vertical joints centered on studs, and staggered one stud space from wallboard joints. Vertical joints in adjacent layers multilayer systems staggered one stud cavity.
Min nom thickness as indicated under Item 5. The statement “Reprinted from the Online Certifications Directory with permission from UL” must appear adjacent to the uu419 material. Always look for the Mark on the product.
UL U419 or MEA 81-98-M
First layer- 1 in. Paper tape, nom 2 in. Strips placed on the interior face of studs and attached from the exterior face of the stud with two 1 in.
Steel stud minimum depth shall be as indicated in Item 5. Gypsum board attached to furring channels as described in Item 6.
Ends of adjoining channels overlapped 6 in. Siding, Brick or Stucco — Optional, Not Shown — Aluminum, vinyl or steel siding, brick veneer or stucco, meeting the requirements of local code agencies, installed over gypsum panels.
Fasteners shall not penetrate through both the stud and the track at the same time. Joint Tape and Compound — Vinyl or casein, dry or premixed joint compound applied in two coats to joints and screw heads of outer layers. Lead tabs to have a purity of OC, fabricated from min 0.