Insulating Floor Joists In Basement For Sound

Once the ceiling is buttoned up insulate the rim joist the floor framing around the perimeter of the house directly above the foundation wall.

Insulating floor joists in basement for sound.

Make sure to use screws that are maximum 1 5 inches long as we do not want the screws to touch the joist. The use of soundproofing caulking will improve the sound quality in the basement and reduce noise between the floors. One thing a lot of people fail to do is to soundproof the basement stairs. The added layer of drywall plus the noise proofing sealant will improve the stc rating to between 41 and 45 depending on the flooring used on the above floor.

Start by insulating the space between the basement ceiling joists with a sound dampening insulation like owens corning quietzone fiberglass insulation. Next you might want to consider using a soundproofing drywall such as quietrock for the ceiling. When the basement or crawl space has vents installed insulating joist bays. Soundproofing the basement stairs soundproofing basement stairs.

Part of the problem with adding insulation for floor joists is securing such insulation between joists underneath the floor. Joist bays the open spaces between floor joists are prime hosts for insulation under specific circumstances.