Stc 50 Wall Types

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.

Stc 50 wall types.

With 1 25 mm type s drywall screws 12 305 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. 5 8 type x one layer one side 3 4 fiberglass batt 50 1 hr. To view different wall assemblies click on each point below that may apply to your 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. Staggered or double stud walls are higher rated than single stud walls. Insulation will noticeably improve the stc rating of an assembly. Through base layer perpendicular to.

Stc is calculated by taking the transmission loss tl values tested at 16 standard frequencies over the range of 125 hz to 4000 hz and plotted on a graph. 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. Metal stud walls perform better than wood stud walls. Resilient channels attached 16 406 mm o c.

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. In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.

Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc. Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures.