There's a building material called Homosote that's an excellent sound
absorber. It's a soft particle board with an uneven surface . You can find
it at good lumberyards in 1/2" thick 4'x8' sheets for $25-$50. Asphalt
sheets work well. Nothing compares to lead sheet but most inspectors treat
it like asbestos so it's usually a bad idea.
Don't just insulate the walls- get the floor and ceiling too. The low
frequencies will come right through the ground (especially if there's a
concrete floor) unless you use isolation mounts and drop a sheet of sound
absorbing material on the floor.
For serious sound isolation search on "build your own recording studio".
Most studio construction techniques are overkill for a garage but you're
bound to find something useful.
At 02:55 AM 9/18/2002 -0600, Mark J Bradakis wrote:
> What would be a good material to put on the
>compressor side of the plywood to help cut down on noise - standard
>fiberglass mat insulation, or rigid foam board or open cell foam sheets
>or ???
>
>Thanks,
>mjb.
--
Erik Quackenbush, Midwest Filter Corporation
1-847-680-0566 http://www.midwestfilter.com
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