Stc Rating Of 2x6 Insulated Wall With Fiber Cement Siding

Building the same wall using 2 1 2 metal studs with 1 2 drywall on each side you get an stc of 34.

Stc rating of 2x6 insulated wall with fiber cement siding.

Add r5 insulative wall sheathing beneath the new siding. Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc have achieved up to 4 hr. The same method used to improve the stc value of walls applies to floors. The use of resilient channels for attaching a gypsum board ceiling to wooden joists or concrete floors disrupts direct paths of sound transmission.

Stc sound transmission classification overview. Wall insulation whenever exterior siding is removed on an. Insulation will noticeably improve the stc rating of an assembly. Common wall stcs by construction type.

Target stcs by building use. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. How to improve stc ratings in your wall. Blown or sprayed cellulose insulation in the cavities has a typical r value of r 20 for 2x6 walls.

Mineral fiber used as the exterior insulation has an r value of 3 8 4 3 inch. Metal stud walls perform better than wood stud walls. International building code requires 50 stc between adjacent dwelling units. Fire resistance ratings with multi layer designs ul u415 oscillation tested to 1 million cycles to ensure structural performance.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Adding standard fiberglass insulation improves the rating to stc 39. Stc values are further improved by using johns manville sound control batts to increase sound. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and.

Resilient channel can improve the stc rating of an assembly. Icc es ner 405 fire resistance rated wall assemblies ner report ner 405 click the link above and go to section 3 5 of ner 405. 2x6 wood frame wall at 24 o c. Sound transmission class guidance introduction the noise guidebook.

With cellulose cavity insulation. Adding sound rated insulation can improve that to stc 45. 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. Add same sound rated insulation can bring the rating to stc 47.

Add r5 to r6 insulative wall sheathing beneath the new. Interior gypsum wall board. Home resource center technical documents fire wall assemblies. Fiber cement siding maintenance.