Stc 50 Wall Types

Metal stud walls perform better than wood stud walls.

Stc 50 wall types.

Staggered or double stud walls are higher rated than single stud walls. The estimate could easily be off by as much as 4 db. 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. Insulation will noticeably improve the stc rating of an assembly.

That is because it is one of the few stc or sound transmission classification ratings that are mandated by building code. 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. 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. 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. 5 8 15 9 mm toughrock fireguard x or 5 8. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.

Particularly in the international building code stc 50 is required for dwelling units to adjacencies. 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.