Stc 50 Wood Wall Construction

Dupree office of noise control california department of health services berkeley california 94704 introduction building codes.

Stc 50 wood wall construction.

Maximum with 1 5 8 41 mm type s drywall screws 8 203 mm o c. Adding additional layers of drywall can improve the stc rating of an assembly. 5 8 15 9 mm toughrock fireguard c gypsum board or 5 8 15 9 mm densarmor plus fireguard c gypsum panels applied perpendicular to i shaped wood joists or wood and steel trusses spaced 19 2 488 mm o c. Metal stud walls perform better than wood stud walls.

Best blocking stc 50 full height walls preferred share a sound blocking level of stc 50 means that a listener in a quiet room would need to exert effort to hear raised speech levels in adjacent rooms and the speech would not be understandable or disruptive. Sound transmission class guidance introduction the noise guidebook pages 33 37 provides an elementary discussion of stc provides some stc ratings for common building materials and limited exterior and interior wall construction configurations and describes a method to determine composite stc value of a wall containing a window or door. The issues concerning construction costs time and building space needed for such a wall type introduce a need for alternative wall designs. Achieving the stc 50 rating desired by aia and ansi guidelines can be accomplished with several alternatives which all have their strengths and weaknesses.

Insulation will noticeably improve the stc rating of an assembly. Wood framed resilient partition systems with safb can achieve up to 59 stc with double layer designs and up to 50 stc with single layer designs have achieved up to 4 hr. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. The international building code ibc requires lab tested stc 50 for walls floors and ceilings for new construction.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Resilient channels attached 16 406 mm o c. Through base layer perpendicular to. Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b.

Staggered or double stud walls are higher rated than single stud walls. Alternative stc 50 wall build ups. Fire resistance ratings with 3 4 u ltracode core panels in steel framed partition assemblies.