Stc 50 Cmu Wall

Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures.

Stc 50 cmu wall.

There are numerous other issues that need to be addressed to. Determining sound transmission class stc for concrete masonry. Insulation will noticeably improve the stc rating of an assembly. The estimate could easily be off by as much as 4 db.

One has an stc 47 4 solid concrete the other an stc 48 steel stud wall. We see two walls. Each assembly in the catalog is drawn 1 2. Metal stud walls perform better than wood stud walls.

3 5 8 steel studs 25 gauge spaced 16 on center. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Masonry walls presented beside a summary description of the correct choice here would be 1 2. 3 thick rockwool afb semi rigid batt insulation.

Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc. In general the stl of a concrete masonry wall increases with increasing frequency of the sound. These tests have indicated a direct relationship between wall weight and the resulting stc heavier concrete masonry walls have higher stc ratings. Many sound transmission loss tests have been per formed on various concrete masonry walls.

Other informa wood stud walls. Stc 50 lab test 5 tl 93 333 alternative stc 50 wall options. Metal stud walls 1 4. Sound transmission class stc provides an estimate of the acoustic performance of a wall in certain common airborne sound insulation applications the stc of a wall is determined by comparing sound transmission loss stl values at various frequencies to a standard contour stl is the decrease or attenuation in sound energy in db.

Sound transmission class or stc is an integer rating of how well a building partition attenuates airborne sound in the us it is widely used to rate interior partitions ceilings floors doors windows and exterior wall configurations. To view different wall assemblies click on each point below that may apply to your project. Studless walls tion in the example. Staggered or double stud walls are higher rated than single stud walls.

Wood stud walls to a scale of one inch one foot and 1 3. Note that in the low frequency range important for music theaters traffic aircraft and most other real world noise sources the lower stc wall is literally 30 decibels better yet lower stc. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.