Stc 50 Wall Assembly

Nevertheless stc 50 ings are.

Stc 50 wall assembly.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Sound transmission measurement of the ability of a wall or floor assembly to isolate airborne sound and prevent it from passing from one class stc side to the other. Insulation will noticeably improve the stc rating of an assembly. Sound transmission flanking paths in build shows an stc of 50.

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. Staggered or double stud walls are higher rated than single stud walls. Is the minimum rating by state law. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

Adding additional layers of drywall can improve the stc rating of an assembly. 5 8 gypsum board type x 1 layer one side 2 layers on the other side. Resilient channel can improve the stc rating of an assembly. Stc 50 lab test 5 tl 93 333 alternative stc 50 wall options.

Search for georgia pacific assemblies by selecting an assembly type hourly rating stc rating or product type above or type part of a assembly name. In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. Ul v473 ulc w481 cul v473 ga wp. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.

When discrepancies appear among laboratory stc ratings for essentially similar assemblies and when the discrepancies are above and below stc 50 field testing may be required to. 3 thick rockwool afb semi rigid batt insulation. Metal stud walls perform better than wood stud walls. 3 5 8 steel studs 25 gauge spaced 16 on center.

Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c gypsum wallboard or densarmor plus fireguard c panels each side of assembly and 3 1 2 89 mm fiberglass insulation in stud space both sides. An empty framed wall steel studs and a layer of gypsum wallboard on each side has an stc of approximately 35. Airborne sound passes. Transmission the passage of sound waves from its source through a vibrating medium and to a listener.