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Good Soundproofing and Deadening materials and any other tips? Answered

Hey guys, so I'm involved in the biggest project I've embarked upon yet. 

Shack studios. 

I do some work with a sound company, the owner of which is a good friend, we're building a recording studio, along with practice rooms, photography/graphics dept and CD printing etc. Essentially a one stop shop for bands and musicians to go from songs on paper to an album... 

Anyway, we have pretty much all the recording equipment and all the amps, PAs etc for the practice rooms. 

However the construction work, which consists of walling off two sounds booths (small dead rooms, one vocals the other for drums/amped instruments) and walling out two large practice rooms, the front of which is the main recording area, overlooked by the control room has to be done on a shoestring budget, we've just got in the boards and supplies for framing up the walls and though we've culled good dense foam from some industrial generator packaging and elsewhere we need good suggestions for cavity filling. 

The cheaper the better - No practices will be going on while recording, it needs to be deadened to the outside world and sound proof enough for practices to go on simultaneously. 

We've been looking at different ideas but it's more just good sources of material anyone can think of... 

Oh and while that's going on I'm trying to get a ton of things off the ground as well, while being what can only be described as embarassingly broke... 



7 years ago

Hey there! A couple of thoughts- when you say 'cavities', are you referring to small areas, or larger areas? Anyway- two things come to mind---

1. Small cavities-- expandable polyurethane foam- as in those spray cans you can buy at Home improvement stores...spray in a small amounts and it expands.

2. Cheapest option-- go and collect 'shredded paper' from business's around town. You can 'crumple' this stuff up and use it as sound proofing material. Had a diesel truck once, and I used this method to quite it down by stuffing it up into the hollow spaces in the cab. Worked real well, and insulated the cab also. Just a thought...


Reply 7 years ago

Well the cavities refer to the spaces between what are essentially two separate walls (not connected mechanically at all) plenty of places recommend using standard insulation like rock wool.

Though this would block a lot of the mid to high frequencies denser materials work better on low frequencies, really it's just alternative materials we need.

Another big issue is that we can't think of any great sources of carpet, basically we need tons of carpet as well.


Reply 7 years ago

I installed Bank Vault Doors for years. You know the kind- big steel doors going into the vaults of banks and weapons doors for the government. On job sites towards the end of the build, many different trades would be finishing their work. One of the last items to be installed would be the carpet. And, there were always left over carpet laying around outside waiting to be hauled into the trash. I built my own home from material left over from job sites. It was a 3,000sq ft home, that fetched $166,000 when I sold it 20 years ago. I built it from, at least 80% of it, from these materials... I tell you all this to say you might, depending on the town/area you live in, to go around to where buildings are being finished out, and find materials to help your project. I was just hoping this might help. I actually scavenged enough copper wire to sale as scrap to buy wire for my house. I would think though, that electricians are saving copper wire left-overs....good luck!


Reply 7 years ago

Thanks for the info - was thinking office refurbs might be worth a shot, not likely to be badly worn or abused and good chance of getting large sized pieces.

The only issue is finding anything happening at the moment, construction etc ground to a halt in the last few years and is still going very slow here...