Soundproofing garage

[oscargate]

The left wall of my garage is a shared wall with the master bedroom.  It's currently insulated with fiberglass insulation.  I can still hear the miners through the wall.

Has anyone tried soundproofing a garage wall where you have miners in the garage?  I am looking at Roxul Safe'n'Sound, Green Glue, etc and wasn't sure if any of these products worked. 

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[imteamleader]

I haven't soundproofed any garages from miner, but I have had a little dealings with soundproofing on basement suites.

If it was me I would build a stud wall on the inside of the garage (between the miners and the master bed wall. Use the Roxul Safe'n'Sound in that wall then use resilient channel to hand the drywall on. Maybe even use acoustic sealant between the boards and the resignation channel.  The back can be left open.

The main objective is to reduce the vibration by uncoupling the surfaces in the garage and the bedroom. Don't let the new stud wall touch the old garage wall. Fixing it to the floor should be fine but attaching it to the ceiling or outside wall should be through something that will not transfer the sound (maybe more res channel).

When installing the res channel do not 'short' the board to the frame wall. Screws holding the drywall on should only screw into the res channel and not the stud wall. This will transfer the sound. Failure rate for installing res channel can be high if your not careful, but its easy if yous studs are makes properly. There are videos on youtube explaining this.


http://www.soundproofingcompany.com/wp-content/uploads/2015/12/sw-resilient-channel-single-single-solid-banner.jpg

Basically like this but with an open back. I see some pictures with the green glue between the boards. Is this what you are talking about with the glue. I have never done this but I assume it would help more. You could do the one skin then add the glued skin after if the first skin isn't enough sound proofing.

[philipma1957]

Lots of ways

Is the wall eight feet high by 20 feet long?

The method above can work.

Or you can multi layer mdf with insulation.

Wait for links

75 by 4 ft.  which means you can do an eight foot wall that is  19 ft long  twice!

https://www.homedepot.com/p/UltraTouch-48-in-x-75-ft-Radiant-Barrier-30000-11475/100656747


5 pieces
https://www.homedepot.com/p/MDF-Panel-Common-3-4-in-x-4-ft-x-8-ft-Actual-0-750-in-x-49-in-x-97-in-988547/206512588


Layer 1 = radiant barrier attach to the garage wall    two 4 foot by 19 foot pieces  entire wall is covered  layer 1

layer 2 = mdf  attach 5 pieces  over the   radiant barrier  

layer 3 =  radiant barrier attach over  the mdf      


last layer    you can use mdf again or go cosmetic with   
                                            

https://www.homedepot.com/p/1-in-x-6-in-x-12-ft-Premium-Tongue-and-Groove-Pattern-Whitewood-Board-418817/100062545


the radiant barrier is 175 the 5 mdf sheets are 150  that is 325

that gives 3 layers   about 8 foot by 20 foot

if you go mdf  again you could use the thinner version at 23 x 5 = 115

total is 440   it will stop the sound


if you go wood tongue  n groove  you need 40 boards  so that is 400  + 325 = 725  looks good I have used the wood in two garages

[jbillk]

I use the Roxul Safe'n'Sound, very easy to install and cuts like butter. Works very well, and fireproof.
Bit pricey though...