Stc 50 Wall Types

One layer type x two layers one two none 42 nr 5 8 one layer 5 8 type x two layers one two none 47 1 hr. Metal stud walls perform better than wood stud walls. 5 8 15 9 mm toughrock fireguard x or 5 8 15 9 mm densarmor plus fireguard gypsum panels applied vertically to each side of 3 1 2 89 mm 20 gauge 33 mils steel studs 24 610 mm o c.

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Insulation will noticeably improve the stc rating of an assembly.

Stc 50 wall types.

There are numerous other issues that need to be addressed to. Staggered or double stud walls are higher rated than single stud walls. Stc 0 18w 40 where w pounds per square foot psf this information is provided as a tool to help estimate. That is because it is one of the few stc or sound transmission classification ratings that are mandated by building code.

5 8 15 9 mm toughrock fireguard x or 5 8. With 1 25 mm type s 12 drywall screws 12 305 mm o c. 5 8 type x one layer one side 3 4 fiberglass batt 50 1 hr. Particularly in the international building code stc 50 is required for dwelling units to adjacencies.

The estimate could easily be off by as much as 4 db. To view different wall assemblies click on each point below that may apply to your project. No insulation 50 with insulation 54 staggered stud wall construction with 3 layers of 16mm 5 8 plasterboard on studs of 95x35mm 4 x 11 2 on a 120mm 4 3 4 common base. The most common single rating search for across the internet is stc 50.

The stc rating of a cmu wall can be estimated based on its weight using the following formula. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.

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