Author Topic: Condo loft noise issues  (Read 3257 times)

kmbrooklyn

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Condo loft noise issues
« on: February 02, 2012, 02:49:12 PM »
Hi there,
I've looked back through the threads in this forum and I expect I've seen all the answers to my sound issues but I figured I would post my specific situation and see what you can suggest.
I live in a rented condo "loft" in a large residential building. It is a 1100 square foot open-concept apartment with 14' ceilings. The floors are hardwood with some area rugs, the ceiling is bare concrete and the walls are 2 layers of drywall on my side, steel studs (I think) a little fibre insulation and 2 layers of drywall on the neighbors side. All the units seem to have the same type of poorly fitting entry door - steel door with a gap at the floor (inadequate sweep) and poor fit in the jamb. You can see light leaking in all around the door. I need to seal the door properly.
I would like to improve the acoustics of the space so it isn't so echoey (I have 2 small kids) and while I don't expect to soundproof the place I would like to reduce the amount of sound that transfers to the neighbors through the common walls (I have 2 small kids).
I've ordered some Green Glue Silenseal to do the edges of the drywal where is meets the ceiling as well as around the receptacles, the hot-water heating pipe, etc. I do think sound is leaking there. I hope it will help.
I built one 4' x 8' "baffle". It is 1" x 3" lumber mounted around the edge of a sheet of hardboard. The frame has a layer of Roxul in it and is covered with a print fabric. It looks nice, maybe absorbs a little sound but otherwise does nothing, I'm guessing. Or does it?
Does adding sound absorbers like the one I built do anything to reduce the sound the neighbors hear? If I make the place less echoey, will the neighbors notice?
Any suggestions on how to reduce the noise transfer short of adding Green Glue and a layer of drywall etc?
Thanks

Randy S

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Re: Condo loft noise issues
« Reply #1 on: February 02, 2012, 05:36:37 PM »
adding absorption to the room will effect a small the amount of noise the neighbors hear but mostly address the echo in your condo and depending on the amount of surface area covered and the location which you place the panels would dictate that value.
Most likely you will have to add green glue and drywall if you want to improve the sound blocking properties of your wall (increase STC).

The reason you can not tell if your baffle is working is because you dont have enough square footage covered in the room.

Basic starting point would be about 30% surface area covered.

Based on the information you provided 1100 sqft x 14' = roughly 880 sqft. of coverage you would need.
in any combination, carpet and padding, wall panels, ceiling baffles and furniture surface area can all be counted.
closer to the source equals faster reduction / less echo
Randy Sieg

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