Stc Drywall 2 Sheets

With two total sheets of drywall common for residential interior walls we usually see an stc rating of around 33.

Stc drywall 2 sheets.

If you have an stc 45 wall this does not mean the wall stops 45 db of sound. Tips for drywall sheets always choose thick sheets 1 2 or 5 8 if you re installing drywall on your ceiling. 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. It s important to know each side of the drywall sheet.

Of course the 5 8 sheets of drywall will be much heavier than the 1 2 but now you can buy a lighter 5 8 sheetrock called usg ultralight firecode tapered edge gypsum board. The sheets are available in thicknesses of 1 2 5 8 and 1 3 8 with dimensions of 4 x8 9 or 10 feet. 5 8 metal studs 5 8 drywall 2 layers total plus batt insulation stc of 43 44. They are logarithmic values and cannot simply be added.

You can find this type of drywall at your local home depot or by clicking this link. You cannot add stc ratings. The side that s gray or ivory should face the room. Thinner drywall sheets such as 1 4 or 3 8 will sag in between rafters over time.