[Build] Box of 4" long square-drive screws

[jim]

   seems to me we should not attempt sound isolation 
but rather sound dampening. sound isolation typically 
requires angled walls that are decoupled from the 
floor and ceiling and exterior walls, double walls 
between rooms, and near perfect air seals. 
   even if we tried to build walls from the floor 
to the ceiling, we wouldn't achieve a near enough 
perfect seal. 
   we might be able to build a little hutch that was 
sound proof, a la recording studio, but it would take 
a lot of wood, sheet rock, carpentry.... 

   if we have lots of shelves, the shelves and the 
stuff on the shelves will break up the sound a lot. 
it may be that judiciously placed high and mid 
frequency dampers hung here and there would reduce 
sound transmission from one area to another. 
   not likely to reduce bass frequencies much without 
decoupling from the floor (e.g. speaker cabinets 
suspended from the ceiling, some kind of absorbent 
rug or foam under an anvil...). 




On Sat, 2009-08-15 at 16:56 -0700, Bill Pollock wrote:
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> Here's some good information on soundproofing:
> 
> http://urbansoundproofing.blogspot.com/
> 
> I've read a good bit about soundproofing though I'm only using resilient
> channel (RC) in one ceiling on my building. I've got 5/8" drywall on the
> walls which seems to do a good job, though it's not enough to insulate
> against the noise of power tools.
> 
> For real sound isolation, it seems to me that some sort of soundproofing
> clip, maybe coupled with green glue, would be great, but the cost per sf
> can be high.
> 
> Bill
> 
> dpc wrote:
> > John Magolske <listmail at b79.net> writes:
> > 
> >> At last night's build team meeting I mentioned having a big box of
> >> 4" long square-drive screws I could donate. These may end up being
> >> useful for attaching walls to the floors & to each other, making it
> >> easier to move them and re-configure the layout over time if need be.
> > 
> > i think you had an example that was a flat head? (flat on top w/ a cone
> > into the threading area that would be sort of 'countersunk'). offhand
> > (since you said they were in storage) do you know the pitch or diameter?
> > just thinking that too 'thin' is slightly less good for attaching to
> > the floor but ok for panel joins.
> > 
> > anyway, this reminded me of something that occurred to me on my way home
> > last night but that i somehow forgot during the four block trip.  are
> > people thinking that the 'walls' are going to be 'real'? (ie, something
> > like 4" w/ maybe some sort of sound insulation). less reconfigurable but
> > i'm not sure i've ever been in 83c when someone's been using the shop
> > (i've used it but didn't notice how much i was disturbing people on the
> > outside :-)
> > 
> > \p
> > 
> > ---
> > That's libertarians for you - anarchists who want police protection from
> > their slaves. - Kim Stanley Robinson
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> 
> - --
> William Pollock, Founder
> No Starch Press
> +1 415.863.9900
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