Dustin Rhodes wrote:Sounds like an awesome project Dave; where (in general) are you building?
Tires only really make sense if you already have a lot of them lying around - it's pretty tedious to go around collecting and purchasing tons of used tires(not to mention the smell of off-gassing rubber).
if Timber is available on your site, it may be the cheaper/more sustainable option(but not necessarily easier)
Take a look at this book for more inspiration/plans on Earth Integrated Structures:
$50 Underground House by Mike Oehler
steve pailet wrote:I was out chatting buying tires at a local tire store.. talking to the owner.. I told him about earth ships.. Guess what he told me.. Not only would he give me tires but sort them and haul them to my land.. about 15 miles from his shop FREE..
Betting that if you chat with the owners of independent tire stores they will be happy to do the same thing.. It really does save them money over the recycling fees so it is a win win situation..
If you can find anyone who has their tires bailed .. it is even more efficient.. a bail holds about 100 tires.. they big.. and there will be zero pounding ... the walls will be thicker. as most of the bails are about 4 x 4 x 6 foot.. stack em three high and just berm them.. have seen them stacked way high and they just dont move.. you will need a crane service to set them like bricks which is what they are. but at a couple of tons each.. and removing them from the waste stream is a good thing
R Scott wrote:There are areas where the tire guy has to track his disposal all the way to a registered disposer, to be green you know. Well, so they don't just end up in a ditch somewhere anyway. Those places it is harder to do now.
The problem is finding enough tires THE SAME SIZE. You have to pick your tire sizes carefully. You can do a little variation if you know equivalent sizes and are careful about packing tires to level, but not much.
amber marcum wrote:Well most tire places will be glad to give them to you as they have to pay to get rid of them. Yes you use gas to transport them but it is all in how you pay for your house. Do you get a loan and pay for it for 30 years? or do you pay for is a little at a time in elbow grease and gas to get the building materials to where you need them. Earthships are a lot of work but not having a house payment is wonderful. I just wish we hadnt used used windows. After 13 years they are mostly cloudy.
Dave Turpin wrote:It is going to get difficult when the angle of the done starts in. The base of the circle should be easy enough, but soon you are either going to be beating earth at an angle, or trying to ram earth with nothing under the tire you are ramming.
Probably a better idea would be to use tires for the main bulk then a ferrocement dome for the top? Or construct the entire thing as a ferrocement bubble and then bury it for thermal mass?
Dave Turpin wrote:There is really no such thing as a "hybrid" Earthship. An Earthship is an Earthship no matter what materials you use, and many of the current designs use ferrocement domes instead of joists.
Those little huts that Earthship Biotecture built in Haiti are really just a circle of tires with a ferrocement dome, but they are still Earthships, because Earthship Biotectures says they are.
Outgassing of the tires is a concern that I have heard many times. Fact is, though, you are not using brand-new tires in a tire wall. You are using end-of-life tires, so there will be no outgassing anymore, even if you didn't cover them up with 6 inches of plaster (which you would).