Author Topic: unlimited ester foam  (Read 4560 times)

jofo70

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unlimited ester foam
« on: February 28, 2009, 11:30:10 PM »
Hi,

I've started building a room within a room in my basement.  We happen to have unlimited amounts of ester foam because our keyboardist works in an art handling crate shop.  I was wondering what our best application of it would be.  They are usually various sizes and not full sheets.  Here's what we have so far:

walls:
-wood stud
-one layer 5/8 drywall on the outside
-about 4 feet on each side from the outside to the brick basement walls

ceiling:
-wood stud
-one layer 5/8 drywall on the inside
-2" ester foam glued to the backside as we put the drywall up, but not making a tight seal against the studs.
-I have enough drywall, and just enough room to put a second layer on the outside of the ceiling (the roof of the room).
- the space between the outside of the top to the ceiling will be just enough so it's not touching

It slowly improves as we hot glue bag after bag of these foam scraps to the inside walls between the studs.  I'd rather not do more than that on the inside so we can rehearse as we make it better.  My roommates are tolerant guys, so it's actually allright now.

What's my best move forward with the foam and extra drywall?

Thanks in advance

jofo70

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Re: unlimited ester foam
« Reply #1 on: March 03, 2009, 11:32:32 AM »
anyone?  I have now put the drywall on the roof of the room within a room.  Will foam bass traps help sound transmission outside of the room, or only control frequencies inside the room.

Anyone?

Anyone?

Randy S

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Re: unlimited ester foam
« Reply #2 on: March 03, 2009, 10:40:16 PM »
The Ester foam is for acoustical conditioning (NRC.) the Bass traps will absorb in the room. Since your this far along you should add the extra layer of drywall first I would even suggest 2 more layers of drywall. I would also recommend adding Green Glue between the layers of drywall it will greatly improve your results.
http://www.soundproofing.org/ggpages.htm

It Also wouldnt hurt to cover the entire room in the ester foam since you have unlimited amounts, overall acoustics will be good.
Randy Sieg

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

jofo70

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Re: unlimited ester foam
« Reply #3 on: March 05, 2009, 05:55:53 AM »
thanks for the reply Randy.  I think I have to wait a while to put on the drywall.  And then save up a bit longer for the Green Glue.  the room is starting to sound great though.  I'm just thankful I have tolerant roommates.

I went with 5/8 drywall.  I was reading somewhere on here that I should go for a different weight for the next layer?

Randy S

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Re: unlimited ester foam
« Reply #4 on: March 05, 2009, 04:26:55 PM »
That is true,but I highly doubt you able to notice it and it would be better to go thicker for the next layer.

A more result bearing tip would be to caulk ( butter) the edges of drywall when you hang the next layer, treat your room like a fish tank and make it water tight = better sound control.
Randy Sieg

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