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<title>Re: [Greenbuilding] fireproof light deck</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I like it – true cottage craft thinking. NYC must be stuffed
full of old commercial 2” rigid fibreglass boards just ‘itching’
to be recycled along with gallons of Martha stewart latex in just the right
colours. Old pantyhose being a mix of spandex and nylon makes great concrete
mesh reinforcement... this product might make a lightweight dent in the
5lbs of waste produced per person per day. <o:p></o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>
greenbuilding-bounces@lists.bioenergylists.org
[mailto:greenbuilding-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>RT<br>
<b>Sent:</b> April 8, 2011 9:41 AM<br>
<b>To:</b> Green Building<br>
<b>Subject:</b> Re: [Greenbuilding] fireproof light deck<o:p></o:p></span></p>
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<p><span style='font-size:10.0pt'>On Fri, 08 Apr 2011 10:32:16 -0400, Gennaro
Brooks-Church <br>
<info@ecobrooklyn.com> wrote:<br>
<br>
> I found some rock wool board that could be covered with a thin layer<br>
> of colored concrete.<br>
> Lots of high embodied energy...but would last.<br>
<br>
><br>
> On Fri, Apr 8, 2011 at 10:20 AM, JOHN SALMEN <terrain@shaw.ca>
wrote:<br>
<br>
>> thinset mortared to rockwool boards<br>
<br>
<br>
<br>
Not sure about the durability of pavers made in such a fashion<br>
<br>
(ie I sort of doubt that thinset has much resistance to frost destruction <br>
due to the extremely small particle size of the fine sand aggregate that <br>
is typically used ... maybe instead of thinset mortar you go to the <br>
hardware store where people take their left-over exterior-grade latex <br>
paint for safe disposal and use that with some coarse sand (ie "concrete <br>
sand" -- particle size up to 3 mm) and cement ( ie replace the
mixing <br>
water with the recycled latex paint) to make a synthetic mortar ? How <br>
fire-resistant is latex paint ? Dunno. )<br>
<br>
but just a ran-dumb thought:<br>
<br>
If locally-sourced, rigid rockwool boards (as opposed to the stuff
Gennaro <br>
mentioned, which comes from the other side of the planet and as such, how <br>
Green would it be ?) aren't available, I wonder if salvaged fibreglass <br>
ceiling tiles might be suitable for the cores of the stressed-skin <br>
panels/pavers ?<br>
<br>
I'm thinking of the ancient-era (1960's ?) stuff that was used in hung <br>
ceilings -- a crunchy, yellow rigid glass fibre (makes me itchy just <br>
thinking about the %@^#*@stuff) with a thin plastic (?) film-type skin on <br>
the finished side.<br>
<br>
Probably qualifies as being "fire resistant" but I don't know if
the <br>
material has any drainage capacity.<br>
<br>
The "tiles" were probably only about 0.5 inches thick so you'd have
to <br>
stack maybe 4 or so together to get the desired thickness.<br>
<br>
Maybe one wraps the schmozzle of tiles in something like the mesh that <br>
onion bags are made of (or maybe the "official" mesh that is used for
EIFS <br>
stucco finishes) for the tensile reinforcement ?<br>
<br>
--<br>
=== * ===<br>
Rob Tom<br>
Kanata, Ontario, Canada<br>
< A r c h i L o g i c at Y a h o o dot c a ><br>
manually winnow the chaff from my edress if you hit "reply"<br>
<br>
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