'Earthship' home uses tires filled with dirt
October 14, 2009 | 12:01 a.m. CDTAn umbrella hangs off of a coat rack along the interior wall of Vendoni and Kenny Colvin's "Earthship" on Sunday, Oct. 4, in Brumley. This load-bearing wall is composed of tires that have been filled with dirt, a process that Kenny Colvin said takes at least three hours per tire. The tires are then stacked up and coated with a soybean-based insulation foam that makes a water-tight seal. This wall will ultimately be covered up by stucco when the Colvins finish their Earthship.
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