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Posted by salty on October 2, 2009, 6:45 am
On Thu, 1 Oct 2009 18:33:28 -0700 (PDT), Shy Picker
show/hide quoted text
>> Spray foam insulation to stop all air exchange, air movement carries
>> noise.
>> theres special drywall that doesnt conduct sound..... and special
>> acoustic tiles too.
>> there are pros that design such rooms.
>> care should be taken some foam is highly flammable
>Thanks for the tip on some of the foam being highly flammable.
>I will check into different types of drywall and insulation.
100 people were killed in a matter of minutes at the Station Night
Club in Rhode Island a few years ago when acoustic foam that was not
rated fireproof, caught fire and burned VERY QUICKLY and emitted toxic
fumes. (google for details) The safe stuff is more expensive.
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Posted by bob haller on October 2, 2009, 9:37 am
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> 100 people were killed in a matter of minutes at the Station Night
> Club in Rhode Island a few years ago when acoustic foam that was not
> rated fireproof, caught fire and burned VERY QUICKLY and emitted toxic
> fumes. (google for details) The safe stuff is more expensive.
yeah that fire was terrible componded by locked fire doors so people
coudnt leak in without paying
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Posted by windcrest on October 2, 2009, 10:01 am
show/hide quoted text
> > 100 people were killed in a matter of minutes at the Station Night
> > Club in Rhode Island a few years ago when acoustic foam that was not
> > rated fireproof, caught fire and burned VERY QUICKLY and emitted toxic
> > fumes. (google for details) The safe stuff is more expensive.
> yeah that fire was terrible componded by locked fire doors so people
> coudnt leak in without paying
That was open cell polyurethane foam panels (like Soundex and Audex),
it flash burns like cellulose. Best solution is upholstered rigid
fiberglass, which has much better acoustical properties anyway, and
you can make panels yourself.
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Posted by salty on October 2, 2009, 10:14 am
wrote:
show/hide quoted text
>> 100 people were killed in a matter of minutes at the Station Night
>> Club in Rhode Island a few years ago when acoustic foam that was not
>> rated fireproof, caught fire and burned VERY QUICKLY and emitted toxic
>> fumes. (google for details) The safe stuff is more expensive.
>yeah that fire was terrible componded by locked fire doors so people
>coudnt leak in without paying
Not true. There were at least 4 useble exits. The problems were: 1)
Initially everyone thought the fire was part of the show. 2)The fire
completed engulfed the palce in a matter of 4 or 5 minutes. 3)Most of
the crowd, even those near other exits all stampeded to the front door
where they had entered. That quickly resulted in a doorway filled with
panicked people stacked up and wedged in the doorway.
There was a crew there, filming a documentary about nightclub safety
(!) of all things. They have photos of the front entrance with all the
bodies, dead and alive, wedged there.
The people farthest from the front door, and near the stage when the
fire started were within 10 feet of an unlocked fire exit that was
ignored by most of them, including some of the band.
lesson learned: Whenever you are in a crowded public space, make sure
you immediately figure out where the closest emergency exit is
located. Finding it in the middle of chaos and darkness may be
impossible.
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Posted by windcrest on October 2, 2009, 4:55 pm
On Oct 2, 9:14=A0am, sa...@dog.com wrote:
show/hide quoted text
> wrote:
> >> 100 people were killed in a matter of minutes at the Station Night
> >> Club in Rhode Island a few years ago when acoustic foam that was not
> >> rated fireproof, caught fire and burned VERY QUICKLY and emitted toxic
> >> fumes. (google for details) The safe stuff is more expensive.
> >yeah that fire was terrible componded by locked fire doors so people
> >coudnt leak in without paying
> Not true. There were at least 4 useble exits. The problems were: 1)
> Initially everyone thought the fire was part of the show. 2)The fire
> completed engulfed the palce in a matter of 4 or 5 minutes. 3)Most of
> the crowd, even those near other exits all stampeded to the front door
> where they had entered. That quickly resulted in a doorway filled with
> panicked people stacked up and wedged in the doorway.
> There was a crew there, filming a documentary about nightclub safety
> (!) of all things. They have photos of the front entrance with all the
> bodies, dead and alive, wedged there.
> The people farthest from the front door, and near the stage when the
> fire started were within 10 feet of an unlocked fire exit that was
> ignored by most of them, including some of the band.
> lesson learned: Whenever you are in a crowded public space, make sure
> you immediately figure out where the closest emergency exit is
> located. Finding it in the middle of chaos and darkness may be
> impossible.
I used to have Soundex and Audex foam panels in my studio, I ripped it
all out after that fire, now I have all rigid fiberglass upholstered
with nice some fabrics my wife selected. They look a hell of a lot
better than urethane acoustical foam too. The fabric was applied with
3M #90 spray glue then I ironed it flat while the glue was still wet
under the fabric. This permanently bonded the fabric to the
fiberglass very tight and flat. Washing the fabric in a highly
concentrated mixture of 20 Mule Team Borax (no rinse) also makes the
fabric itself fire-retardant.
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>> noise.
>> theres special drywall that doesnt conduct sound..... and special
>> acoustic tiles too.
>> there are pros that design such rooms.
>> care should be taken some foam is highly flammable
>Thanks for the tip on some of the foam being highly flammable.
>I will check into different types of drywall and insulation.