WebFor an interior wall that is made of 3 5/8″ metal studs with one layer of 5/8″ gypsum board on both sides, the STC rating is about 38–40. However, if the space between the gypsum boards and the metal studs is filled with batt insulation, the STC can be improved to 43–45. WebSteel studs spaced 16" o.c. will not reduce that rating. Conversely, stiffer 2x4 wood studs substituted for the steel studs will yield 37 STC and a further drop to 34 STC when the studs are spaced 16" o.c. A three point STC difference is considered noticeable. Table 1. Typical Fire-Rated Partition

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WebUL U419 Interior Partitions, Steel Stud (Non-Load-Bearing) UL U419 — Interior Partitions, Steel Stud (Non-Load-Bearing) ... Stc 52; Fire Rating 2 Hour; System Thickness 6-1/8" Stc 52; Fire Rating 2 Hour; ... walls, ceilings and attics. http://www.stcratings.com/assemblies.html godfirst schools log in

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WebInsulation will noticeably improve the STC rating of an assembly. 2. Staggered or double stud walls are higher rated than single stud walls. 3. Metal stud walls perform better than … Web25-gauge metal stud wall was usually 4-5 STC points higher than 20- and 16-gauge stud walls. Comparing similar partitions, there is a 3-4 STC point drop between walls when studs are installed 406 mm on center rather than 610 mm on center. There was little difference in STC value between partitions with 16-gauge studs and 20-gauge studs. WebShaft Wall Limiting Heights & Spans Find the right steel studs, limiting heights and spans, and fire-rated assemblies for your shaft walls. Project Galleries Looking for inspiration? See photos of 100s of finished projects from across the globe. Competitor Comparison Tool Looking for a USG match for a competitor product? Get Started Now god first pics