Stc Rating Of 2x6 Insulated Wall With Fiber Cement Siding

International building code requires 50 stc between adjacent dwelling units.

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

Common wall stcs by construction type. Stc ratings for load bearing walls. Target stcs by building use. Fiber cement siding maintenance.

An empty framed wall steel studs and a layer of gypsum wallboard on each side has an stc of approximately 35. It has an nrc rating of 1 0 performing better at the upper test frequency than the lower end so low frequency noise is still an issue. Hardieplank lap siding hardiepanel vertical siding hardiesoffit panel hardiesoffit beaded porch panel hardieshingle siding hardieshingle notched panels hardieshingle individual shingles hardie reveal panel system 7 16 hardietrim boards. Add r5 insulative wall sheathing beneath the new siding.

Insulation will noticeably improve the stc rating of an assembly. Cellulose insulation outperforms all other insulation systems for sound attenuation. Adding additional layers of drywall can improve the stc rating of an assembly. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and.

How to improve stc ratings in your wall. In a typical 2 x 4 wall with a single layer of 1 2 drywall on each side tested stc. Add r5 to r6 insulative wall sheathing beneath the new. According to the rsmeans 2014 residential cost data report the installed cost of vinyl siding is on average 201 per 100 square feet while fiber cement totals 300 for the same area.

Metal stud walls perform better than wood stud walls. Offices this is particularly true if the stc of the sepa rating partition is greater than 45. Staggered or double stud walls are higher rated than single stud walls. O cellulose stc41 o fiberglass or mineral fiber stc38 o icynene stc37 o the installed performance in batt insulation systems is typically well below that of their tested.

Owens corning 2 thick soundproofing insulation has a density of 10 lb ft and claims it will add an stc of 18 to your uninsulated wall with an stc of 35 to bring it to an stc of 53. 2 table 2 stc values of equal thicknesses of fiber glass insulation 35 8 steel studs single layer 1 2 gypsum board each side material thickness density stc fiber glass 2 0 75 pcf 46 fiber glass 2 1 30 pcf 46 fiber glass 2 3 00 pcf 46. Stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound. Home resource center technical documents fire wall assemblies.

Doubling the mass of a wall assembly does not double the stc rating. 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. Wall insulation whenever exterior siding is removed on an.