Stc Floor Assemblies

25 4 mm nominal wood finish floor or 19 32 15 1 mm plywood finished floor with long edges t g and 15 32 11 9 mm interior plywood with exterior glue subfloor perpendicular to.

Stc floor assemblies.

Transmission the passage of sound waves from its source through a vibrating medium and to a listener. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. 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. Staggered or double stud walls are higher rated than single stud walls.

Resilient channel can improve the stc rating of an assembly. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes. Adding additional layers of drywall can improve the stc rating of an assembly. In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies.

Metal stud walls perform better than wood stud walls. This catalog of sound rated wall and the purpose of the indexing system is. Insulation will noticeably improve the stc rating of an assembly. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.