Author Topic: Garage practice room construction decisions  (Read 2062 times)


  • Guest
Garage practice room construction decisions
« on: August 06, 2013, 08:43:48 AM »

I'm converting the back portion of my garage into a home office / music
practice room (mostly woodwind instruments: saxophones, clarinet, oboe).
The garage is on the corner of my property, with neighboring houses
within ~20 ft.

The garage is 2x4 wood stud construction on a concrete slab; the 2x4s
are exposed on the interior.  The room is 9'6" wide x 7'6" deep, and
the ceiling slopes from 7'10" to 6'3".  The room has a doorway to the
rest of the garage (i.e., not a rolling garage door).

So far, I've insulated with UltraTouch R13 denim insulation, and hung a
plastic vapor barrier.  But I'm undecided about how to face the walls.
Because of the low ceiling, I don't think I can do any sort of dropped
ceiling.  I'm also reluctant to sacrifice square footage to build a room
within a room.

At this point, I'm considering:

(1) What sheet stock to use?  Almost definitely sheetrock, since it
seems best bang-for-buck, though I also considered MDF.

(2) I will most likely build a two layer sandwich of sheet stock plus a
constrained-layer damping material like Green Glue, or audimute Peacemaker
rubber sheets, or MLV.  But I've also seen rubber sheets hung directly on studs,
with only a single later of sheet stock on top of that.

(3) Whether to attach the sheet stock + damping material sandwich
directly to the 2x4 stud frame, or use some sort of sound clips or
resilient channels.

Do these seem like the right things to be considering?  My budget is
flexible, but I'm trying to decide what is the most effective use of
my budget.

Thanks for any suggestions.


  • Guest
Re: Garage practice room construction decisions
« Reply #1 on: August 13, 2013, 10:19:36 AM »

The room is tiny for an audio room.
For isolation you should ONLY consider 2 layers of 5/8" fire-rated drywall, i.e.; Firecode® Core or Firecode C Core by Sheetrock® (USG) or similar. Use the CLDM Green Glue it improve STL.

This is the ONLY technique that I would recommend for your situation. Do not drop the ceiling, simply add drywall to increase mass.