[Greenbuilding] fireproof light deck

[JOHN SALMEN]

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. 

 

From: greenbuilding-bounces at lists.bioenergylists.org
[mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of RT
Sent: April 8, 2011 9:41 AM
To: Green Building
Subject: Re: [Greenbuilding] fireproof light deck

 

On Fri, 08 Apr 2011 10:32:16 -0400, Gennaro Brooks-Church 
<info at ecobrooklyn.com> wrote:

> I found some rock wool board that could be covered with a thin layer
> of colored concrete.
> Lots of high embodied energy...but would last.

>
> On Fri, Apr 8, 2011 at 10:20 AM, JOHN SALMEN <terrain at shaw.ca> wrote:

>> thinset mortared to rockwool boards



Not sure about the durability of pavers made in such a fashion

(ie I sort of doubt that thinset has much resistance to frost destruction 
due to the extremely small particle size of the fine sand aggregate that 
is typically used ... maybe instead of thinset mortar you go to the 
hardware store where people take their left-over exterior-grade latex 
paint for safe disposal and use that with some coarse sand (ie "concrete 
sand" -- particle size up to 3 mm) and cement ( ie replace the mixing 
water with the recycled latex paint) to make a synthetic mortar ? How 
fire-resistant is latex paint ? Dunno. )

but just a ran-dumb thought:

If locally-sourced, rigid rockwool boards (as opposed to the stuff Gennaro 
mentioned, which comes from the other side of the planet and as such, how 
Green would it be ?) aren't available, I wonder if salvaged fibreglass 
ceiling tiles might be suitable for the cores of the stressed-skin 
panels/pavers ?

I'm thinking of the ancient-era (1960's ?) stuff that was used in hung 
ceilings -- a crunchy, yellow rigid glass fibre (makes me itchy just 
thinking about the %@^#*@stuff) with a thin plastic (?) film-type skin on 
the finished side.

Probably qualifies as being "fire resistant" but I don't know if the 
material has any drainage capacity.

The "tiles" were probably only about 0.5 inches thick so you'd have to 
stack maybe 4 or so together to get the desired thickness.

Maybe one wraps the schmozzle of tiles in something like the mesh that 
onion bags are made of (or maybe the "official" mesh that is used for EIFS 
stucco finishes) for the tensile reinforcement ?

--
=== * ===
Rob Tom
Kanata, Ontario, Canada
< A r c h i L o g i c  at  Y a h o o  dot  c a >
manually winnow the chaff from my edress if you hit "reply"

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