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In my newly built house, I asked for the master bedroom wall to be soundproofed with rockwool and its inner door to be solid wood. It works incredibly well, and
by copperx 11y ago
In my newly built house, I asked for the master bedroom wall to be soundproofed with rockwool and its inner door to be solid wood. It works incredibly well, and it makes the house appear bigger: If someone's watching TV in the living room, I can just go to the master bedroom and shut the door and there's incredible silence.
I did this because as a teenager I always struggled with privacy in my parent's house. Even though the house wasn't small, it was hard to have a conversation with my girlfriend without it being heard in the nearby rooms (my parents rarely watched TV, so there was no sound to mask my voice).
If I ever get the chance to build another house, I will specify rockwool insulation in all inner walls and all-around solid doors. In that way, I can have a small house with great privacy. Or I can study while someone else is watching a movie with surround sound in the adjacent room with no problem.
- Anechoic 11y agoRockwool (as a substitution for fiberglass or cellulose insulation) by itself shouldn't do all that much. Are the internal walls 2x4 or 2x6 construction? Do you know the thickness of the drywall panels?
- Domenic_S 11y agoAlmost certainly it's the solid door doing most of the work. Doors and windows are absolutely terrible at keeping noise out. I had new windows recently installed, laminated dual-pane, real beasts. In bedrooms that face the street, almost no noise, they're amazing. But in the front room where the front door is? The door might as well be open.
- copperx 11y ago2x4s. I can't remember the specs, but I recall doing research and it was a pretty dense rockwool. I did ask for the drywall panels to be thicker than normal, but I don't recall how much. I found out about staggered 2x4s (http://images.meredith.com/diy/images/2008/12/p_SCTC_100_04.jpg http://images.meredith.com/diy/images/2008/12/p_SCTC_100_04....) too late.
- deleted 11y ago[deleted]
- Anechoic 11y agoI have to agree with Domenic_S, it's probably the solid core doors (I'm guess the jambs and sill are well-sealed also) that's providing most of the benefit moreso than the rockwool. Staggered studs are an option, resilient channel also works well, provided that it's installed correctly.
- copperx 11y agoEdit: The Rockwool didn't substitute fiberglass -- inner walls are normally not insulated, they're just made of 2x4s with sheetrock on top. I could probably have saved some money by just using regular fiberglass in all inner walls.
- richardkmichael 11y agoYou might enjoy this article: http://www.nytimes.com/2015/12/13/realestate/soundproofing-for-new-york-noise.html http://www.nytimes.com/2015/12/13/realestate/soundproofing-f...