Stc 50 Wall Assembly

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Stc 50 wall assembly.

Staggered or double stud walls are higher rated than single stud walls. In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. Nevertheless stc 50 ings are. 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.

Sound transmission flanking paths in build shows an stc of 50. 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. 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. 50 stc with single layer designs. 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. Transmission the passage of sound waves from its source through a vibrating medium and to a listener.

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. 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. Insulation will noticeably improve the stc rating of an assembly.

3 5 8 steel studs 25 gauge spaced 16 on center. Airborne sound passes. Resilient channel can improve the stc rating of an 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.

3 thick rockwool afb semi rigid batt insulation. 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. Stc 50 lab test 5 tl 93 333 alternative stc 50 wall options.