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Home My WebLink AboutFire Resistance Assemblies7147125,8:14 AM BXUV.V421 | UL Product iQ Solutions Design/System/Construction/Assembly Usage Disclaimer Authorities Having Jurisdiction should be consulted in all cases as to the particular requirements covering the installation and use of UL Certified products, equipment, system, devices, and materials. Authorities Having Jurisdiction should be consulted before construction. Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements. The published information cannot always address every construction nuance encountered in the field. When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the product manufacturer noted for the design. Users of fire resistance assemblies are advised to consult the general Guide lnformation for each product category and each group of assemblies. The Guide lnformation includes specifics concerning alternate materials and alternate methods of construction. Only products which bear UL's Mark are considered Certified. BXUV - Fire Resistance Ratings - ANSI/UL 263 Certified for United States BXUVT - Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada See General lnformation for Fire-resistance Ratings - ANSI/UL 263 Certified for United States Design Criteria and Allowable Variances See General lnformation for Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada Design Criteria and Allowable Variances Design No. V421 August 4,2023 Nonbearing Wall Ratings- 1 & 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. UL Product iQ'@ a o a a I https://iq. ul prospector.comien/profile?e= 1 5 1 95 116 7123125,8:'14 AM BXUV.V421 | UL Product iQ 4 I { J 1 1 I # I I 7 I I X = O AA + VIRTICAL SECTICN https://iq. ul prospector.com/en/profile?e= 1 5 1 95 216 7123125,8:'!,t AM BXUV.V421 | UL Product iQ SICTION A-A 1. Girts -"2" or "C" shaped girts,0.056 to 0.120 in. thick steel,6 to 12 in. deep, with 2to 4in. wide flanges. Girts placed horizontally (with flanges up or down) and spaced max 48 in. OC. Girts are secured to columns with girt clips, ltem 2, or bolted to the column through the girt flange. 2. Girt Clips - (not shown) - Steel secured to column by welds or bolts. 3. Steel Wall Panels- Min No. 26 MSG, min 16 in. wide coated steel panels. Panel joints offset 6 in. from gypsum sheathing joints. lf one layer of exterior wallboard is used, panels are fastened to the horizontal girts wilh 1-1/2 in. (min) long No. 12-14 self-drilling screws 12 in. OC. lf two layers of exterior wallboard are used, panels are fastened to the horizontal girts with 2 in. (min) long No. 12-14 self-drilling screws i2 in. OC. Vertical raised rib profiles of adjacent panels are overlapped approximately 3 in. and attached to each other with 7/8 in. long 1/4-14 (min) self-drilling screws (stitch screws) 24in. OC (max) along the lap. 34. Steel Siding or Brick - (Optional, not shown) For Fire Resistance Ratings from inside of wall only, steel siding or brick veneer meeting the requirements of local code agencies, may be installed over additional furring channels (not shown), ltem 4, on exterior of wall in place of steel wall panels. Brick veneer attached to furring channels with corrugated metal wall ties attached to each furring channel with steel screws, not more than each sixth course of brick. When a minimum 3-3/4 in. thick brick veneer facing is used, the fire resistance rating applies from either side of the wall. 4. Furring Channels - Hat shaped, minimum 25 MSG galv steel, approximately 2-5/8 in wide, 7/8 in. deep, spaced 24 in. OC perpendicular to girts. Channels are secured to each girt with 3/8 in. (min) long self-drilling pan head sheet steel type screws. Two screws are used at each fastening location, one through each leg of the furring channel. 5. Gypsum Board* - Any 112in. thick UL Classified Gypsum Board that is eligible for use in Design No. X515. Any 5/8 in. thick UL Classified Gypsum Board that is eligible for use in Design Nos. L501, G512 or U305. See table under ltem 6 for number of layers and thickness on interior face of wall. Any 5/8 in. or 1/2 in. thick gypsum board applied horizontally or vertically. First layer attached to furring channels, ltem 4, using 1 in. long Type S bugle head gypsum board screws spaced 24 in. OC. vertically and horizontally. Second layer attached to furring channels using i-5l8 in. long Type S bugle head gypsum board screws spaced 12 in. OC. vertically and24 in. OC. horizontally. Third layer, when used, attached to furring channels using Type S bugle head gypsum board https://iq. ulprospector.com/en/profile?e= 1 5 1 95 3/6 7123125,8:14AM BXUV.V421 | UL Product iQ . . screws spaced 12 in. OC. vertically and 24 in. OC. horizontally,l-7/8 in. long for 1/2 in. gypsum board and 2-1 /4in.long for 5/8 in. gypsum board. Fourth layer, when used, attached to steel strapping using 1 in. long (min) bugle head drywall screws spaced 8 in. OC Steel strapping from flat stock, 1-1/2in. wide, fabricated from 0.020 in. thick (25 gauge) galv steel. Steel strapping located vertically and attached to third layer of gypsum board at each verticaljoint and intermediate stud using 2-5/8 in. Type S bugle head drywall screw5 12 in. OC. The horizontal or vcrticaljoints of thc wallboard arc offset 24 in. whcn 2 succcssivc loycrs arc applicd in thc samc orierrtatiorr. AM ERICAN GYPSU M CO .(Y';ew-Cl asSjlcation). - C KNX.R1 41 96 BEITING NEW BUIIDING MATERIALS PUBLIC LTD CO {View Classification) - CKNX.Rl9374 CABOT MANUFACTURING ULC {View Classification) - CKNX.R25370 CERTAINTEED GYPSUM INC Uiew Classification) - CKNX.R3660 CGC lNc.0/iewte]assilicalrsl) - CKNX.R197s1 CERTAINTEED GYPSUM INC (View Classification) - CKNX.R18482 GEORGIA-PACIFIC GYPSUM L L C {View Classification) - CKNX.RZ717 NATIONAI GYPSUM CO (View Classification) - CKNX.R3501 PABCO BUILDING PRODUCTS t L C. DBA PABCO GYPSUM (View Classification) - CKNX.R7094 PANEL REY S A Niew Classification) - CKNX.R21796 SIAM GYPSUM INDUSTRY (SARABURI) CO LTD Uiew Classification) - CKNX.Rl9262 THAI GYPSUM PRODUCTS PCL {View Classification). - CKNX.R27517 UNITED STATES GYPSUM CO.(\/iew..1Classil1ca!1gn). - CKNX.R1319 USG BORAT DRYWALT SFZ tLC lView Ctassificatbn) - CKNX.R3843B UsG MEXICO S A DE C v.(@..tClassillca!j9n) - CKNX.R16089 5A. Gypsum Board* - (As an alternate to ltem 5) - Fastened as described in ltem 5. 5/8 in. thick, 4 ft. wide, paper surfaced, applied vertically only. NATIONAL GYPSUM CO - Type SBWB 58. Gypsum Board* - (As an alternate to ltems 5 and 5A) - Nominal 5/8 in. thick, 4 ft wide panels, applied vertically only and secured as described in ltem 5. PABCO BUILDING PRODUCTS t t C, DBA PABCO GYPSUM - Type QuietRock ES 5C. Wall and Partition Facings and Accessories* - (As an alternate to ltems 5 through 5C) - Nominal 5/8 in. thick, 4 ft wide panels, applied vertically only and secured as described in ltem 5. PABCO BUIIDING PRODUCTS L t C, DBA PABCO GYPSUM - Type QuietRock 527 https://iq. ulprospector.com/en/profile?e= 1 5 1 95 416 71"3125,8:1,4 AM BXUV.V42| | UL Product iQ 5D. Gypsum Board* - (As an alternate to 5/8 in. Type FSW in ltem 5) - Nom. 5/16 in. thick gypsum panels applied vertically or horizontally. Two layers of 5/16 in. for every single layer of 5/8 in. gypsum board described in ltem 5. Horizontaljoints on the same side need not be staggered. lnner layer of each double 5/16in.layer attached with fasteners, as described in item 5, spaced 24in. OC. Outer layer of each double 5/16 in.layer attached per ltem 5. NATIONAI GYPSUM CO - Type FSW 6. Gypsum Board* - See following table for number of layers on exterior face of wall. Any exterior grade 5/8 in thick gypsum wallboard or gypsum sheathing applied horizontally or vertically. First layer attached to girts, ltem 1, using 1-1/4 in. long (min) self- drilling bugle-head sheet steel type gypsum board screws spaced 8 in. OC. horizontally. Second layer, when used, attached to girts using 1-5l8 in. long (min) self-drilling bugle-head sheet steel type gypsum board screws spaced 8 in. OC horizontally. The horizontal or verlicaljoints of the gypsum board are offset 24 in. if 2 successive layers are applied in the same orientation. Fire Resistance from Both Sides of Wall Layers 5l8ln. Layers 5/8 ln. Gypsum Board Gypsum Board (ltem 5) on (ltem 6) on Rating lnterior Face Exterior Face 1 1 1 2 2 2 2 3 1 Rating Fire Resistance from lnside of Wall Only Layers 1/2ln. Gypsum Board (ltem 5) on lnterior Face Layers 5/8 In. Gypsum Board (ltem 5) on Exterior Face 1 3 0 Layers 5/8 ln. Gypsum Board (ltem 5) on lnterior Face Layers 5/8 ln. Gypsum Board (ltem 5) on Exterior FaceRating Any 1/2 in. thick UL Classified Gypsum Board that is eligible for use in Design No. X515. Any 5/8 in. thick UL Classified Gypsum Board that is eligible for use in Design Nos. 1501, G512 or U305. See Gypsum Board (CKNX) category for names of Classified companies. 7. Column Protection - (not shown) - Horizontal wall girts, ltem 1, are attached to vertical structural steel columns. See Column Design Nos. X524 and X530 for protection of columns. 8. Batts and Blankets* - (optional, not shown) - Glass Fiber Batts placed in the cavities of exterior walls. See Batts and Blankets* (BZLZ) - category for names of manufacturers. 8A. Fibel Sprayed" - As an alternate to Batts and Blankets (ltem 8) - (100o/o Borate Formulation) - Spray applied cellulose material. The fiber is applied with water to completely fill the enclosed cavity in accordance with the application instructions supplied with the product with a nominal dry density of 2.7 lblft3. Alternate Application Method: The fiber is applied without water or adhesive at a nominal dry density of 3.5 lblft3, in accordance with the application instructions supplied with the product. Applegate Greenfiber Acquisition LLC - lnsulmax and SANCTUARY for use with wet or dry application. 2 4 0 https://iq. ulprospector.com/en/profile?e='l 5 1 95 5/6 7123125,8:14 AM BXUV.V421 | UL Product iQ 8B. Fiber, Sprayed* - As an alternate to Batts and Blankets (ltem 8) and ltem 8A - Spray applied cellulose insulation material. The fiber is applied with waterto interior surfaces in accordance with the application instructions.supplied with the product. Applied to completely fill the enclosed cavity. Minimum dry density of 4.3 pounds per cubic ft. NU-WOOL CO INC - Cellulose lnsulation 8C. Fiber Sprayed* - As an alternate to Batts and Blankets (ltem 8) - Spray applied cellulose fiber. The fiber is applied with water to completely fill the enclosed cavity in accordance with the application instructions supplied with the product. The minimum dry density shall be 4.30 lbs/ft3. INTERNATIONAI CEIIUIOSE CORP - Celbar-RL 9. Joint Tape and Compound - (not shown, optional) - Vinyl or casein, dry or premixed joint compound applied in two coats to joints and screw heads of face layer of gypsum board. Paper or glass fiber tape embedded in first layer of compound over alljoints. * lndicates 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 2023-08-04 The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL Solutions' Follow - Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL Solutions' Follow - Up Service. Always look for the Mark on the product. UL Solutions permits the reproduction of the material contained in Product iQ subject to the following conditions: 1. The Guide lnformation, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from Product iQ with permission from UL Solutions" must appear adjacent to the extracted material. ln addition, the reprinted material must include a copyright notice in the following format: '@2025 UL LLC." https://iq. ulprospector.com/en/profile?e=1 51 95 6/6