Stc 50 Wall Assembly

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

Stc 50 wall assembly. 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. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 5 8 gypsum board type x 1 layer one side 2 layers on the other side. 50 stc with single layer designs.

3 5 8 steel studs 25 gauge spaced 16 on center. 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. 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. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

Nevertheless stc 50 ings are. 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. 3 thick rockwool afb semi rigid batt insulation. Transmission the passage of sound waves from its source through a vibrating medium and to a listener.

Sound transmission flanking paths in build shows an stc of 50. Resilient channel can improve the stc rating of an assembly. Ul v473 ulc w481 cul v473 ga wp. 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.

Doubling the mass of a wall assembly does not double the stc rating. An empty framed wall steel studs and a layer of gypsum wallboard on each side has an stc of approximately 35. Metal stud walls perform better than wood stud walls. Adding additional layers of drywall can improve the stc rating of an assembly.

Stc 50 lab test 5 tl 93 333 alternative stc 50 wall options. Is the minimum rating by state law. Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c wallboard or densarmor plus. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.