Spray foam

We have an identical house- 3 bedrooms sharing walls, and our bed is against the shared wall with the kids' room. It's a small 1930s house and there isn't much leeway on rearranging the furniture. So we bought a sofa-bed for the family room and do our activities down there before going upstairs to sleep. Works out great!

Anonymous wrote:You still have sex? I am impressed.

OP here. Haha - yeah, we just started up again. I highly recommend it!

If yuo have vents like that, you should re-route the vents and/or split the pipes first.

Otherwise all the noise will just come straight through the vents even if you put up soundproofing elsewhere.

You still have sex? I am impressed.

We hung a second drywall in front of the existing one using resilient channel (clips) and stuffed the space (17 inches) in between the two walls with soundproofing grade insulation. It's the only thing that has worked against noisy townhouse neighbor.

We bought the material and had a handyman put it up.

http://soundproofing.org/infopages/channel.htm

It's a little pricy, but cork is a good sound insulator. You can get cork tiles or sheets and cover each wall on one side or the other with cork, then cover it over with wallpaper or drywall or whatever you want.

We have a 1940s house with three bedrooms that share walls. The AC vents are in these walls and you can literally see light from one room coming in through the one next door. Even without the vents though, you can hear a lot of sound between. My kids are young now, but I know there's going to be a time soon when I would like better sound proofing for uh...a variety of reasons any ideas? Or do parents with close together bedrooms engage in noisy activities elsewhere or when the kids aren't home??