How do I install SoundStop® on wall and ceilings over existing drywall?
• First make sure that all light switch and baseboard electric outlet covers are removed. • Walls must be free of any objects sticking out of the walls and ceiling. • Proper size mud rings must be installed on electrical boxes before installing SoundStop®. • Apply SoundStop® by using drywall screws or drywall nails that are long enough to penetrate the wall stud or ceiling joist 3/4″. • Install the drywall in the opposite direction of SoundStop® making sure that no SoundStop® and the drywall seams line up. • Use regular drywall nailing pattern to install the drywall, making sure that the drywall screws or drywall nails are long enough to penetrate the drywall and SoundStop® and enter the ceiling joist or the wall stud 3/4″. What do STC ratings and other sound measurement terms mean? Sound Transmission Class (STC) is an expression of Sound Transmission Loss (described below under STL) as a single number which indicates performance over a selected range of sound frequencies. The higher t
