Stc Rating Drywall 2 Sheets

You can find this type of drywall at your local home depot or by clicking this link.

Stc rating drywall 2 sheets. Use of soundbreak xp drywall results in wall partitions with high rated stc values that are thinner than traditionally built high rated stc wall partitions providing increased usable floor space. Doubling the mass of a wall assembly does not double the stc rating. 925 600 0618 technical bulletin stc ratings steel stud framed walls sound transmission class stc is an integer rating of how well a framed wall attenuates sound. You cannot add stc ratings.

They are logarithmic values and cannot simply be added. 2 4 stud 5 8 drywall 2 layers total plus batt insulation stc of 34 39 5 8 metal studs 5 8 drywall 2 layers total plus batt insulation stc of 43 44 with two sheets total of 5 8 drywall utilizing standard insulation we often see stc ratings ranging between 30 34. Page 1 of 2 5726 sonoma drive pleasanton ca 94566 phone. You might get something around stc 35.

If you have an stc 33 wall and decide to add another sheet of drywall with an stc of 20 you do not get a finished wall with an stc of 53. Combined the sheet will reduce the transmission of sound in or out of a room by between 15 and 20 stc points when compared to standard drywall sheets.