Stc Concrete Board Wall

8 concrete block hollow core no wall finish.

Stc concrete board wall.

Double 2 x 4 stud wall with two layers of 5 8 in. Staggered or double stud walls are higher rated than single stud walls. Metal stud walls perform better than wood stud walls. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

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. While effective for high stc the two walls take additional floor space and have a higher material cost than single stud construction. 8 concrete block hollow core painted 2 coats 2 sides.

Sound transmission class or stc is an integer rating of how well a building partition attenuates airborne sound. 1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panels applied perpendicular to rigid furring channels 24 610 mm o c. Maximum installed weight of the finish system should not exceed 15 psf. Insulation will noticeably improve the stc rating of an assembly.

With 1 25 mm type s drywall screws 12 305 mm o c. Stc ratings for wall floor and window materials and assemblies 3 appendix a stc ratings a 1 walls a 1 exterior a 1 interior a 9 wooden studs a 9 metal studs a 14 floors a 16 wood a 16 concrete a 21 windows a 24 doors a 27 exterior a 27 interior a 29 appendix b references b 1. Standard stud wall with one layer of 16mm 5 8 plasterboard. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

Attaching gypsum board to a masonry wall with resilient clips can increase the stc rating by 12 to 15 points ref. Plaster board on one side and 1 layer of 16mm on the other side on a horizontal flexible channel at 600mm 2ft centres screwed to the stud. Do not use 1 4 usg durock cement board for wall or ceiling applications. Determining sound transmission class stc for concrete masonry.

Do not use usg durock cement board with vinyl flooring. Gypsum board end joints located midway between continuous channels and attached to additional pieces of channel 54 1372 mm long with screws at 12 305. T h e r e c o m m e n d e d s t c o f a wall is the numerical difference between two sound levels. Gypsum board each side provides stc 63 and a wall footprint 10 3 4 in deep.

The stc ratings for masonry walls also can be improved by filling the cores of hollow units with sand or creating a cavity wall.