WebSome assemblies are tested with a supporting wood structure (UL U375), and others are not (GA ASW 1000). This is an important distinction to make when discussing continuity and structural support. Even if included in the tested wall assembly, the wood walls are usually assumed not to be providing part of the wall’s fire-resistance rating. WebInterior wall membrane (UL Item #2, see Figure 1 and Appendix A): 1 layer of ⅝ in. type X gypsum wallboard (USG Type SCX). 2. Nominal 2x6 wood studs (UL Item # 1): spaced 16 inches on center, effectively fire stopped. 3. Wall cavity insulation (UL Item #4): glass fiber insulation, 6¼ in. thick, nominal 0.43 pcf density. 4.
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Fire rated partitions - 1hr and 2hr - JLC-Online Forums
WebOnly products which bear UL's Mark are considered Certified. Fire-resistance Ratings - ANSI/UL 263 See General Information for Fire-resistance Ratings - ANSI/UL 263 Design No. U465 June 07, 2013 Nonbearing Wall Rating — 1 HR. 1. Floor and Ceiling Runners — (Not shown) — Channel shaped runners, 3-5/8 in. deep (min), 1-1/4 in. Webframed ul fire -rated assemblies. refer to the ul fire resistance directory for information regarding product orientation and fastening requirements. gypsum board: wood studs: insulation: gypsum board: one layer 5/8" thick gypsum board (ul type ulix™) 2x4 wood studs, 16" o.c. 3-1/2" knauf ecobatt® insulation in cavity one layer 5/8" thick ... http://www.americanrockwool.com/_docs/certifications/UL%20U305%20Wall%20Assembly.pdf list of private schools in philadelphia