Good Question: Interior Insulation?

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Dear Apartment Therapy: Green Home,

I would like to add insulation to my NYC loft in the interior walls surrounding my bathroom. Any ideas for a green (and cheap) option?

-Penelope

Penelope, because you asked about interior walls, we're guessing you'd like to add insulation for acoustic purposes. (Consult with an expert before adding thermal insulation to exterior walls, because improperly located insulation can trap moisture and result in mold.) With that in mind, we have a few recommendations.

Bonded Logic cotton insulation is great stuff -- not only is it easy to work with, but it also has much greater acoustic properties than fiberglass. It's green, too, as it's made of industrial waste from the manufacture of blue jeans. But you'll still have to get inside your wall.

• As an alternative, you could add a layer of 5/8" drywall to one side of the wall to help cut down noise transfer...

• ...or consider caulking around all electrical boxes and installing a lightweight weatherstrip around the door.
Readers, do you have other suggestions for Penelope? How do you deal with bathroom noises in your home?

Image via MSNBC/Newsweek

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