Sorry to flood the list with this. Perhaps something like this:
http://www.brunnerent.com/Tools/Portfolio/frontend/item.asp?type=9&size=0&lngDisplay=0&jPageNumber=4&strMetaTag= But at 60deg angle instead of 45. This would bring the cost and weight up considerably though. It would be ideal for reusable shelters as the tape has a high recurring cost. It's about $60-70 each time you want to set it up. Spiral On Tue, Jan 26, 2010 at 5:03 PM, Spiral Syzygy <[email protected]>wrote: > I would love to see something cheaper and less flammable than the bi > filament tape. As it is, the rolls are about $30/each and you need about 1.5 > - 2 rolls to do a 12' hexayurt. Also, when building these on the playa, the > wind poses challenges beyond moving boards. I found that dust between the > tape and boards can reduce the holding power of the tape. > > Also, the tape combined with R-Max is REALLY flammable. You HAVE to cover > it with metal foil tape if you want to have your yurt even remotely safe > from fire hazards. My tests of the boards with various tapes show that > bi-filament tape uncovered dramatically accelerated the combustion over the > board alone. When the bi-filament tape was covered with foil tape, I found > it almost impossible to ignite the tape and what did burn didn't spread very > easily. > > So I think with the fire safety issues the hexayurt has, that perhaps we > should borrow what we can while we explore more radical options. Has anyone > seen any aluminum channel with a 60deg bend that can accept 1" boards? I > would love to be able to just snap the boards in as if I was using T channel > or similar. > > Spiral > > > On Tue, Jan 26, 2010 at 4:42 PM, Richard Ginn <[email protected]>wrote: > >> On Tue, Jan 26, 2010 at 4:54 PM, Chris Phoenix <[email protected]>wrote: >> >>> Tape adds a lot to the cost and skill of hexayurt building. I'm >>> wondering whether there might be more mechanical joints that could >>> work. >>> >>> For example, truss joint connectors - those little metal plates with >>> spikes stamped out of them - might be pre-bent to the correct angles >>> and used to attach the panels together. Although putting them into >>> wood requires a hydraulic press, they should go pretty easily into >>> foam. A bolt through them to a large washer or plate on the other side >>> should hold them in place. >>> >>> The resulting joints would not be water-tight, but just a little tape >>> should be able to fix that. >>> >>> I think I remember reading that an important part of hexayurt strength >>> is the tension in the tape that's wrapped around between the walls and >>> roof. If so, it might be necessary to add a cable or strap, either >>> wrapped around the outside, or run through the bolts (eyebolts?) >>> attaching the truss connectors. >>> >>> Has anyone tried anything like this? Can anyone see a major problem? >>> >>> Chris >>> >>> >> These, yes? http://en.wikipedia.org/wiki/Truss_connector_plate >> >> [image: >> http://upload.wikimedia.org/wikipedia/commons/7/7a/Wood_truss_plates.jpg] >> If enough of them are used then there might not not be much of a weak spot >> in the wall joint when it's pressed by strong winds. With too few plates >> the wall might bend and snap. >> >> Instead of a bolt, maybe punch a few holes through the board with a large >> nail and use metal wire stitched through a few times and twisted tight. >> >> The perimeter cable could be secured to the uppermost plates with wire >> also. How strong does that cable have to be? Could it be rope? >> >> With the plates the tape is then no longer load-bearing and only has to be >> waterproof and sun-resistant. >> >> Looks like they cost nearly $2 each in packages of 100. How many are >> needed per hexayurt? >> >> This is a step towards using full-length connector joints which would be >> fast to assemble and strong. Those may not exist yet, but one size/angle >> might fit all (roof and wall and roof/wall joint). >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "hexayurt" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<hexayurt%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/hexayurt?hl=en. >> > > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hexayurt?hl=en.
