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I'm not sure how much work I can reasonable put forward on this idea,
but my roommate and co-hexayurt-builder is exploring the idea of using
really heavy duty velcro similar to what is on Husky Hang-alls. It's
about 4" wide and holds several hundreds of pounds. it would be
totally reusable and should hold even when applied in dusty
conditions. The tape leaves much to be desired when you're trying to
build a hexayurt on the Playa.
Spiral
Spiral
It's hard to say as I don't think anyone has done it yet. Experementing and reporting your findings is highly encouraged :) as for ply on only one side, I imagine if you used some bits of ply on top to stop the bolts in the velcro from pulling through or squashing the foam too much. I wouldn't sew a seam in. It would be hard to make the seam strong enough in my opinion. The benefit of the velcro is it is attached to nylon webbing. That is some strong stuff. Much stronger than bi-filament tape. The only possible draw back I can think of, ignoring cost, is that you may trade some holding power. Who knows. It could be very strong compared to tape. Did you have any links to velcro strips you could share?
On Jan 25, 2011 8:18 PM, "Cheese" <jpe...@gmail.com> wrote:
Since Velcro is so expensive for wide pieces, do you think that 3/4'
wide strips sewn on the outside edges of a 4"-6" wide strips of
waterproof canvas could be used?
On Jan 25, 10:05 am, Spiral Syzygy <spiralena...@gmail.com> wrote:
> They basic idea is to sandwich...
> > On Tue, Jan 25, 2011 at 10:47 AM, Spiral Syzygy <spiralena...@gmail.com>
> > wrote:
>
> >> This tape would be good to cover the bi-filament but I'm not sure it
> >> would be...
> >> On Tue, Jan 25, 2011 at 4:39 AM, Cheese <jper...@gmail.com> wrote:
> >> > Hi Everyone,
>
> >> >...
> >> >http://www.harborfreight.com/clearance/3-inch-x-25-ft-quick-roof-repa...
>
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> >> > Thank you
>
> >> > --
> >> > You received this message because you are subscribed to the Go...
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I had a different idea that I think it could be done with d-rings.
Basically, run the velcro/webbing strap across the seams in 3 - 4
places on each seam. Then have one big strap that goes all the way
around the walls and another along the bottom. This will stop the
walls from splaying out too much and collapsing the roof down.
I'm guessing that you would want to give yourself about 6" - 8" of
strapping to bolt into on the panels. Another foot or so to loop
through a ring and velcro down. This set up would let you include some
wiggle room while you build and you can cinch all the straps down when
everything is all lined up.
The design of the hexayurt puts most parts resting against the other
parts. They will basically stand up with some tape taking it together.
The issue comes when you have a heavy wind and uneven loading. This is
where that one big strap really comes in handy. It will force the
pressures on the roof into the walls and to the ground.
Another advancement may be to look into honeycomb boards. I bet some
cardboard or recycled plastic honeycomb sandwiched in some thing
durable and cheap (recycled ldpe/hdpe?) with one site metalized may
work pretty well. The cost would be up with these changes, but we're
talking a shelter that would probably last decades and could be set up
and taken down repeatedly.
Have fun experimenting and remember to tell us about how it turns out!
Spiral
Spiral
As for the panel designs, basically anything, cheap, easily available,
decently insulating, and relatively durable. Nice to have's would be:
waterproof, reflective solar radiation, relatively green to produce.
Polyiso board is nasty stuff. Nasty to mfg, nasty to dispose of, nasty
to breath the dust, and nasty to burn. I'm thinking a honeycomb
sandwich board would be most economical on the large scale. Perhaps
using recycled plastics or local materials for the cores and veneers.
The possible combinations of materials with a honeycomb sandwich panel
are innumerable. It just seems like the most economic use of materials
for making panels that meet our requirements.
Spiral
The Tuff-R foam board that is available in Chicago is about $13-$15 a
sheet. You need 12 for an 8' hexayurt. The tape is about $25-30/roll
and you need more than one roll each time you set up. $50 - $60 each
time you erect this thing. That adds up. Making it out of more durable
materials, with re-use in mind, brings the cost up initially. I
believe it will make up for it with time and use. The wear and tear on
the default materials is substantial after a week in the desert.
You don't want to rely on the adhesive to affix the velcro. You would
basically be back to tape at that point. It would be better to use
some kind of fasteners or screws to hold down the velcro. If you bevel
the board edges so they fit tightly, and maybe use some gorilla tape
or some other sort of rubbery foam adhesive to fill the gaps, you may
preserve the dust-free advantages, block out light in the gaps all
with out having to tape the insides with gorilla tape each time.
Just my $.02KWh
Spiral
Well it may be a fire hazzard. But as it is used wharehouses all over it should be pretty well documented. I personally would not assume it is recyclable.
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