Stc 50 Wall Types

Staggered or double stud walls are higher rated than single stud walls.

Stc 50 wall types.

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. The stc results of decoupling in wall and ceiling assemblies varies significantly depending on the framing type air cavity volume and decoupling material type. Resilient channels attached 16 406 mm o c. 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.

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 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. Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

With 1 25 mm type s drywall screws 12 305 mm o c. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. To view different wall assemblies click on each point below that may apply to your project. Maximum with 1 5 8 41 mm type s drywall screws 8 203 mm o c.

In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. 5 8 type x one layer one side 3 4 fiberglass batt 50 1 hr. 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. Through base layer perpendicular to.

Metal stud walls perform better than wood stud walls. Insulation will noticeably improve the stc rating of an assembly.