Stc Drywall 2 Sheets

Thinner drywall sheets such as 1 4 or 3 8 will sag in between rafters over time.

Stc drywall 2 sheets.

It s important to know each side of the drywall sheet. If you have an stc 45 wall this does not mean the wall stops 45 db of sound. The sheets are available in thicknesses of 1 2 5 8 and 1 3 8 with dimensions of 4 x8 9 or 10 feet. Tips for drywall sheets always choose thick sheets 1 2 or 5 8 if you re installing drywall on your ceiling.

You cannot add stc ratings. With two total sheets of drywall common for residential interior walls we usually see an stc rating of around 33. 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.

The side that s gray or ivory should face the room. You can find this type of drywall at your local home depot or by clicking this link. They are logarithmic values and cannot simply be added. 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.