One has an stc 47 4 solid concrete the other an stc 48 steel stud wall.
Stc 50 metal stud wall construction.
Target stcs by building use.
Eleven tests listed and that the fourth test in the group 1 2 3 1 4 4 matches the descrip 1 1.
Boarding and nail pops associated with standard drywall construction plus lower lifecycle costs and greater sustainability.
Wood stud walls to a scale of one inch one foot and 1 3.
One hour fire rated partition 3.
15 8 41 mm steel studs indicates value is an estimate steel framing stc values sound control jm formaldehyde free insulations help reduce.
We see two walls.
Stc sound transmission classification overview.
Each assembly in the catalog is drawn 1 2.
25 gauge metal studs 24 with 1 type s drywall screws 36 o c.
Two hour fire rated partition.
International building code requires 50 stc between adjacent dwelling units.
Doubling the mass of a wall assembly does not double the stc rating.
In base layer and 1 5 8 2.
An empty framed wall steel studs and a layer of gypsum wallboard on each side has an stc of approximately 35.
Weigh at least 50 less than masonry walls allowing faster easier installation.
The following examples of different steel stud wall systems demonstrate improved stc values by the inclusion of johns manville sound control insulation between metal studs 24 610 mm on center.
To view different wall assemblies click on each point below that may apply to your project.
Fire rated floor ceiling assemblies using metal framing stc 50 iic 50 fire rating as shown 1.
Staggered or double stud walls are higher rated than single stud walls.
Studless walls tion in the example.
Insulation will noticeably improve the stc rating of an assembly.
Metal stud walls perform better than wood stud walls.
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.
How to improve stc ratings in your wall.
Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound.
One hour fire rated partition parallel to one side of min.
Veneer plaster partitions achieve up to 63 stc in steel framed resilient systems and up to 52 stc in wood framed.
You will notice that there are from the index the choices are.
High stc ratings can be achieved without the use of special acoustical products if the gauge of the steel studs is soft.
However the soft gauge studs reduce the stiffness of a wall and limit the amount of weight the wall can hold and can also limit the use of a.
Common wall stcs by construction type.
