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