February 2-6th, lead a straw bale workshop in Iitate, Fukushima Prefecture (福島県飯舘村). Iitate received a grant from Japan's Ministry of the Environment to build a model ecological home. Iitate employed Permaculture Center Japan, represented by Koji Itonaga, Takahiro Yamada, Sachie Fujishima, and Kenji Uragami to create the overall design and build specific elements. In turn, a local architect,
Yoshiyuki Toyota, and local construction company, Komatsu Construction Company, were hired. The west wall of a detached studio was built with straw bales. Workshop participants consisted mainly of Nihon University students.
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The interior is plastered with earth and will be finished with lime plaster.
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The soil used in the plaster was recycled from the earthen plastered walls of an old home. Who knows how many centuries this soil has been used as a plaster?
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For the base coat, the soil was mixed with cut straw. The exterior is finished with wood siding. I installed a series of temperature and relative humidity senors in the wall in order to determine the effect of an exterior rain screen on the interstitial hygrothermal environment.
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