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These designs are identified in the UL Fire Resistance Directory, which is updated yearly and can be referenced at the Underwriters Laboratories website at ul.com.

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 …

UL U423, U425 Exterior Walls, Steel Stud (Load-Bearing), with fiberglass batt insulation

Design No. U423 September 5, 2022 Bearing Wall Ratings — 3/4 Hr, 1, 1-1/2 or 2 Hr (See Items 5 & 7) This design was evaluated using a load design method other than the Limit States …

2020年9月16日 · The UL Certification Mark on fire resistant products, systems and assemblies is relied on by code enforcement officials and buyers to provide confidence that products and …

PAC INTERNATIONAL, INC. 2 Hour Fire Rated Steel Wall Detail - UL U423 (See UL.com for additional detail) PAC International, Inc. 866-774-2100 www.pac-intl.com

Product iQ is UL Solutions' online location for certification information. It combines data from many legacy UL solutions, including the Online Certification Directory, Product Spec and …

one layer 5/8" thick gypsum board (ul type ulix™) assembly options: ul design no. u423; u425 (bearing wall) notes: stud and insulation sizes are minimum unless otherwise stated in design. …

Test Report(s): UL Design U423, U424, and UL R1319, and UL R4615/03NK09827 dated March 7, 2003. Description: Load bearing wall 1, 1 ½, 2, in 45 minutes design U423 and U424 as