Floor Muffler Stc Rating Over Concrete

All ratings are not equal as with any underlayment sound testing number that a company gives you each subfloor or floor assembly in your home. The quietwalk underlayment provides very high ratings such as iic of 71 and stc 66 as of mid 2018. All too often this plenums and suspended ceilings unbaffled ducts window to window outdoors common heating units transoms and air grilles unblocked joist spaces uncaulked wall perimeters ducts piping and fixtures masonry joints.

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Consistency of the product over the most common frequencies.

Floor muffler stc rating over concrete. Or are there other factors involved that those ratings don t account for. 5 contains similar requirements but with a minimum stc rating of 45 db when tested in accordance with astm e90 for walls and floor ceiling assemblies separating dwelling units. Reduce the thickness of the rubber to 1 and the rating drops to stc 69. Measures a floor ceiling assembly s resistance to transmission of structure borne or impact noise such as footfall or a chair dragging on the floor.

Reduce the thickness again to 3 8 and the rating drops to stc 54. The stc rating for a six inch concrete sub floor is 52 55. A good level of isolation for walls and ceilings is stc 50 plus. On top of that the manufacture of the floor covering can use different materials.

Stc rating of 52 and iic rating of 51 floor muffler. For the most noise reduction possible floor muffler is a great choice. The stc rating for a basic wood structure floor ceiling is 40 43. Are the stc and iic ratings to be taken as the end all comparison of how solid the floors will sound.

The international residential code ref. The standard requires a minimum laboratory stc rating of 50 for party walls and floor ceilings. I see that 1 4 cork is rated way lower than the floor muffler links below. A high level of isolation for walls is stc 60 plus with ceilings at stc 50 plus.

The international building code suggests a rating of 50 or more for iic and stc but allows 45 or more for fiic or fiic field tests. Now the stc rating was able to get above 70 but only with 10 of concrete and 2 of rubber. Floor muffler is similar in construction to first step but boasts a higher stc and iic rating. Stc rates a partition s or material s ability to block airborne sound such as a television or people having a conversation.