Sound proofing floor


I'm in a condo and my downstairs neighbor can hear my music. I'm looking into putting a sound barrier over the cement floor and under the carpet. Has anyone had to do this and can point me toward products I can use?

rbull11

I wish I could remember what it was; I was watching some YouTube video on room treatment and the guy was talking about just that very thing; was it creosote? Or am I just thinking of Monty Python? 

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We used a rubber membrane to help cut the trnasmission of sound through a concrete black wall at school between the dance studio and the recording studio.  It really cut the sound down but it may only be a wall treatment. can't remember the brand

I've done a little soundproofing over the years, largely to isolate the noise from an air compressor used for my tonearm. I used a product I bought from Acoustical Solutions in the Virginia area, a mass loaded vinyl/melamine sheet, sold in bulk, which is very effective. Not sure you would use that, but those folks do know soundproofing and sell the products- worth a call.  I suspect you'll wind up needing a suspended floor, similar to what recording studios use but your needs may be even greater if you are dealing with neighbors who are hearing your music.

And the transmission of sound may be more than the floor- air systems, lighting conduits, any small opening or aperture is a potential leak. I found this with a small duplex sized cable pass-through, which I solved with melamine (Magic Eraser, originally meant as a soundproofing material). Doors are also "leaky" --you are down to the level of smaller than a "tiny bug" that can pass through. And, though I'm no expert, I suspect the walls, unless also concrete, will also act as membranes. 

Often, people will hire an acoustician/specialist to do design and sourcing, which will add to the expense. Not an inexpensive proposition even if you source the materials without a consultant. You might give the folks mentioned above a call--they are professional, and can give you a rough idea of what this may entail. 

I've known a few people over the years who leased or owned another space for their hobbies to keep them separate from their living quarters. 

Be interested to see what you learn simply for my own knowledge. 

Good luck,

It is a cement floor with an 8lb carpet pad and carpet. At 6 to 8 inches of cement, I live in Florida and the complex was built in 2006. I have no other noise issues, just through the floor.

A 6" to 8" concrete floor is a very unusually thick amount of concrete! However, if that is correct, your sound may find its way down through the walls instead. I find it hard to believe it would go through 8" of concrete. The only sound that would are the very low frequencies through vibrations, but that's it. You need to find out what frequencies they can hear.

I'm not a soundproofing expert but was a home improvement contractor for 45 years. I had a job once remodeling a funeral home that had offices on the second floor. I hired a professional to soundproof the second floor thinking he was only going to do the ceiling of the first floor. Well the mechanic said he would have to come down the walls of the first floor about 2 ft. as well otherwise the soundproofing wouldn't work. As others have mentioned above, the sound does transfer from the floor through the walls below. 

Mass loaded vinyl is the shiznit. I have used it to soundproof a ceiling from the living room above and I have used it to soundproof the family room below my room. Just lay it down and put your vinyl flooring right over it. Not cheap, but very effective. Now, in my rooms I was also able to fully insulate as well. 

I have considered it on the wall between my bedroom and the living room in present house. Works well.

 

ceiling in this situation:

https://www.audiogon.com/systems/6230#&gid=1&pid=17

 

floor in this situation:

https://www.audiogon.com/systems/8615#&gid=1&pid=11

@rbull11 

My first thought, is you must be playing your music way to loud for anything but maybe some bass to pass through 6”-8” of concrete or it’s traveling through the walls. However, my subwoofer used to rattle the windows and AC vents until I bought four washing machine isolation feet from Amazon for like $20 and an 18”X18” piece of floor tile to go on top of my carpeted floor.  Worked like a charm. I did something similar with my speakers. I bought some Isoacoustics Gaia isolation feet and couple pieces of 1” thick granite, also on top of the carpeted floor .  They made a huge difference! 

I installed mass loaded vinyl under the wood floor. It helped greatly to reduce the sound. I also lined the walls with it before the drywall went up. It is heavy and hard to work with but great results.

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I'm looking into the mass loaded vinyl and a few other options. I'm on the 4th floor of a 4 story building. I'm not playing my music extremely loud ( too me ) My neighbors on either side don't hear my music, I've checked with both. It's just the neighbor below. It's not extremely loud to my neighbor but just enough to be bothersome when trying to sleep.For a temp. solution I've turned it down a little, put a pad under my sub woofer and turned my spikes over so thet're not going through the carpet to the sub floor. I've ordered spike pads so I can turn the spikes back the correct way.

Are they "hearing" the bass or midrange/treble as well? It doesn't make sense that all frequencies are passing through unless the whole floor is hitting a resonance with your music. It's pretty hard to stop the long bass wavelengths. Isolating your floor from the concrete is not practical, but would help immensely. Have you set the volume to where you like it and gone downstairs to hear it for yourself? That might help develop a solution.

sometimes bass and other times music I'm told, not very loud, I turned up music 1 at a time and had her call when she could hear it. It was a little louder than I normally play it, but some songs can play a little louder than others and some the bass pops in. I'm just looking to decrease the sound traveling through the floor a little.

I pulled up the carpet and pad and put down the 1lb MLV, then put the pad and carpet back down. I've been playing the music a little lower too. Seen my neighbor today and she stated she hasn't heard my music at all since. Now I just have to work with her and find out what volume I can turn it too before she can hear it.

Thanks for your feedback. Good to know it made a difference. I'll keep the idea for use at my home sometime.