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.

Stc 50 wall types.

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. In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. With 1 25 mm type s drywall screws 12 305 mm o c. Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures.

5 8 type x one layer one side 3 4 fiberglass batt 50 1 hr. Metal stud walls perform better than wood stud walls. Insulation will noticeably improve the stc rating of an assembly. Staggered or double stud walls are higher rated than single stud walls.

Resilient channels attached 16 406 mm o c. Through base layer perpendicular to. 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. Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc.

Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 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. The stc results of decoupling in wall and ceiling assemblies varies significantly depending on the framing type air cavity volume and decoupling material type.

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. Maximum with 1 5 8 41 mm type s drywall screws 8 203 mm o c.