What is the best method for providing sound insulation between rooms?
A—There are many effective techniques that can be used individually or together, depending on the level of soundproofing required, the type of sound, and the budget. It is important to assess all avenues of sound transmission and plan a coordinated effort in order to be effective. Sound can be transmitted directly in the air, such as through the gap under a door, or transferred through other materials, such as the vibrating panel of drywall on the wall between the rooms, or the hardwood or tile floor between levels of the house. In homes with forced-air heating, sound can easily be transmitted through the heat ducting, or the cold-air return plenums. These plenums are often openings through the walls of adjacent rooms with a grille over them. Here are a few ideas for tackling various sound problems: • “Unfaced” fiberglass batts installed in the space between wall studs are effective against higher frequency sounds. • If you are building new walls or can replace existing ones, stagger t
