Stc 50 Floor Assembly

Ul v487 ulc w482 cul v487.

Stc 50 floor assembly.

Metal stud walls perform better than wood stud walls. Transmission the passage of sound waves from its source through a vibrating medium and to a listener. Fire rated floor ceiling assemblies using metal framing stc 50 iic 50 fire rating as shown 1. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes.

Insulation will noticeably improve the stc rating of an assembly. Its design gp wa. Stc ratings of 50 if tested in a laboratory or 45 if tested in the field. 25 gauge metal studs 24 with 1 type s drywall screws 36 o c.

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. The field test evaluates the dwelling s actual construction and includes all sound paths. Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b.

One hour fire rated partition 3. This catalog of sound rated wall and the purpose of the indexing system is. Ubc requirements for floor ceiling assemblies. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

Airborne sound passes. Wood joists supporting 1 25 4 mm nominal wood subfloor and 1 25 4 mm nominal wood finish floor or 19 32. 50 stc with single layer designs. Adding additional layers of drywall can improve the stc rating of an assembly.

An assembly rated at stc 50 will satisfy the building code requirement. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Staggered or double stud walls are higher rated than single stud walls. One hour fire rated partition parallel to one side of min.

One layer 1 x24 toughrock shaftliner or densglass shaftliner panels between 2 1 2 floor and ceiling j runners with t section of 2 1 2 steel c t studs between panels. Resilient channel can improve the stc rating of an assembly. Two hour fire rated partition.