Stc 50 Wall Types

Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc.

Stc 50 wall types.

5 8 type x one layer one side 3 4 fiberglass batt 50 1 hr. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound. Great care must be taken in each type of decoupled partition construction as any fastener that becomes mechanically rigidly coupled to the framing can short circuit the decoupling. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. The stc results of decoupling in wall and ceiling assemblies varies significantly depending on the framing type air cavity volume and decoupling material type. 1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panel applied perpendicular to resilient channels 24 610 mm o c.

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. Resilient channels attached 16 406 mm o c. Staggered or double stud walls are higher rated than single stud walls. Maximum with 1 5 8 41 mm type s drywall screws 8 203 mm o c.

5 8 15 9 mm toughrock fireguard c gypsum board or 5 8 15 9 mm densarmor plus fireguard c gypsum panels applied perpendicular to i shaped wood joists or wood and steel trusses spaced 19 2 488 mm o c. Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures. With 1 25 mm type s drywall screws 12 305 mm o c. To view different wall assemblies click on each point below that may apply to your project.

Metal stud walls perform better than wood stud walls. Gypsum panel end joints located midway between continuous channels and attached to additional pieces of channels 54 1372 mm long with screws 12 305 mm o c.