Author Topic: Building a soundproofed room - doesn't need to be cheap.  (Read 5209 times)

Aubrey

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Building a soundproofed room - doesn't need to be cheap.
« on: October 18, 2011, 12:08:47 AM »
Hello - over the next couple of months i'm intending to build a soundproofed practice/recording room out of our one car garage. It's not a tremendous amount of space to work with, but i'm not too worried about it being a little cramped. We're a rather loud 3-piece band with no intention of getting any bigger, so i think it'll work. Money would only be an issue if the directive was to rebuilding any amount of the foundation of the house or doing anything that stretches into the 10s of thousands of dollars. Otherwise, i've got free license to do a pretty good job with this.

My hope is to have it be completely silent to neighbors (the closest ones being across a street and across a yard, so there's nothing right next to us) as well as quiet (if not silent) in the rest of the house.
(continuing over several posts as i'm too wordy for the character limit...)

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #1 on: October 18, 2011, 12:13:09 AM »
The first stage of construction will involve getting a contractor to remove the existing garage door and then build an exterior wall in its place with doors that open out for moving equipment. That will all happen in about two weeks; then the soundproofing begins.

My intent is to build a room inside the garage so as to detach the whole thing from the frame of the house. In doing so i'll have about 12 inches of head-room to work with if i leave the existing interior ceiling and floor as-is. The current walls and ceiling are lath and plaster and i'd prefer to just patch up any cracks and then leave them be. If i could get away with that and then maybe a layer of MLV (if that's wise) before building the interior room, that'd be ideal.

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #2 on: October 18, 2011, 12:16:01 AM »
Before i post pictures of the current layout, i'll post some questions that i've got spinning around my head at the moment:

 - There's a concrete floor in the room and i've heard that can also conduct sound - is that true? If so, is there a method for soundproofing that before i build the interior room on top of it that won't eat up too many inches? With only a foot of headroom to work with, i'll be pushing to keep things as thin as possible without compromising too much of the sound proofing.

 - And on that note - is just an extra foot of vertical space a reasonable amount for building a room inside a room? Am i insane for thinking it's possible?

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #3 on: October 18, 2011, 12:19:04 AM »
 - I have a doorway into the house that i'll need to have access to from the sound-room. The right method for building a door from the sound room that opens to that door in a small amount of space will be a must. I can knock out the interior door jam and door to make way for something bigger if need-be, but first i'm curious about what the best solution would be.

 - I've got a basement window in the room to contend with as well. My hope is to find a way to mount a fan in it for moments when we need to just blow dude-sweat out of the room, but leave it covered and soundproofed otherwise. What's a good way to deal with something like that?

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #4 on: October 18, 2011, 12:21:22 AM »
 - There's a big bass rig in the mix and i'm wondering what the best way to build a bass trap into this sucker would be. Could it be done along a wall? Does it need to be in a corner?

That's all i can think of at the moment. Here are some pictures of what i'm working with:

These are some rough sketches of the dimensions of the room:
http://www.isaacaubrey.com/soundproof/doorcorner_measured.jpg
http://www.isaacaubrey.com/soundproof/backcorner_measured.jpg

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #5 on: October 18, 2011, 12:26:34 AM »
This is the back end of the room - picture it without any furniture ;)
http://www.isaacaubrey.com/soundproof/backcorner.jpg

Here's the door to the inside of the house and where the current garage door is (soon to be removed):
http://www.isaacaubrey.com/soundproof/garagedoor.jpg

Here's the window i'll have to do something with:
http://www.isaacaubrey.com/soundproof/window.jpg

This is the backside of the interior wall. Hopefully the inside of the room can be done well enough to where i won't need to mess with this. Sound possible?:
http://www.isaacaubrey.com/soundproof/interiorbacksidewall.jpg

Thanks for any help with this!

Randy S

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #6 on: October 18, 2011, 11:52:27 PM »
Ok, You are the right track with your plans...you will need to be careful in a few areas as to not cause problems based on your construction techniques.

Lets start with your first question about the concrete.. YES , concrete has a speed of sound around 10.600 fps and can transmit impact and low frequency sound. For this we just simply glue down #2 MLV to the floor after walls have been built and use anti vibration pads for equipment in the room.  Since the walls will still be ram shot into the concrete you will use RC-1 on the walls after MLV is installed to float the drywall.

Based on the pictures you have provided my biggest concern will be creating the triple leaf system.
In order to avoid this major mistake I would like you to contact me directly so we can discuss particulars.

Randy S.
1-888-942-7723
ext 104
M-F 8:00am - 5:00pm PST
Randy Sieg

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

Aubrey

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Re: Building a soundproofed room - doesn't need to be cheap.
« Reply #7 on: October 19, 2011, 04:45:38 AM »
Thanks Randy! I'll give you a ring when i get up in the morning.