Author Topic: soundproofing a cellar's coal chute  (Read 5127 times)

ollyboly

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soundproofing a cellar's coal chute
« on: June 26, 2011, 10:49:22 PM »
Hi,
new to this sort of stuff, so ill give you some details behind the job.

I have a band, and we practice in the cellar of my house, it has always been a bit damp down there but nothing too bad, but recently as i've bought more electrical items like a pa system, i really want to keep them in good condition so i got a damp proof quote. The guy said that the damp would go away if we ventilate the space, this involved unblocking the coal shoot that was previously blocked off with a layer of foam from a sofa and a wooden board with cushion nailed to it (a very DIY afair)
So today i did this and hopefully the damp will go, however this also leaves me with another problem. When the shoot was blocked off, the sound coming from the basement up to the street was fairly low, however now with nothing stopping the sound, it will be VERY loud.
I live in a terraced house, with neighbors front back and side, and i do not want to annoy them.
Read below...

ollyboly

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Re: soundproofing a cellar's coal shoot
« Reply #1 on: June 26, 2011, 10:51:47 PM »
I can't seal the shoot off altogether otherwise the damp will return. I have a few ideas which i hope people can tell me whats good and bad about each

idea 1- seal the entrance to the coal shoot (from the cellar) off with a soundproofing material sandwich between two wooden board with an extractor fan placed in the middle, and seal the iron grate off with a concrete slab raised above the ground by engineering bricks placed on their sides so the air can flow out of the holes. I'm hoping this will limit the amount of water that enters the cellar as well.

idea 2- Have a removable board that will hopefully block all sound exiting the cellar to put in place only when practicing, so air flow continues as normal at all other times

If both of those won't work, any ideas what will?

Very grateful for your time, thank you

Randy S

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Re: soundproofing a cellar's coal shoot
« Reply #2 on: June 27, 2011, 03:39:58 PM »
Line chute with 1" closed cell foam mat .
http://shop3.mailordercentral.com/supersoundproofing/prodinfo.asp?number=09-42730-PSA

then create the baffle turns put in at least 4 turns 65% width.Use 2" foam for this and glue in.
http://shop3.mailordercentral.com/supersoundproofing/prodinfo.asp?number=09-42760

you can contact me direct if you need further explanation..



Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

ollyboly

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Re: soundproofing a cellar's coal shoot
« Reply #3 on: June 27, 2011, 04:58:01 PM »
Hi,
im sorry i forgot to mention i don't have much money to spend, by my calculations your idea will cost $526,
i barely have $100 to spend, otherwise i would have just done what you suggested in the first place.

Randy S

  • Senior Soundproofing Technical Specialist
  • Global Moderator
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Re: soundproofing a cellar's coal shoot
« Reply #4 on: June 28, 2011, 03:36:38 PM »
I understand budget constraints but the principles remain the same. You can try to use an inferior product however I would not know what the value of reduction would be.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

 

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