Texas Stonehenge is what Clay DiMeno calls this bunker/tornado shelter/man cave that he made with earthbags and a lot of creative ingenuity. 
Most people would not realize that this roundhouse was actually made from earthbags, because of Clay’s faux stone rendering. This is similar to a root cellar that he made and we featured earlier.
Roofs
Sunray Kelley’s Tree House
During one of the early morning circles Sunray Kelley pointed up the hill to a group of trees and explained that he would be building a tree house there and that people were welcome to join him in the project. It didn’t take him long to attract a group of helpers willing to go around scrounging structural elements for this.
Sunray is a well known character around previous colloquia and a famous artist/builder in his own right. He grew up in the woods of Washington State and still resides on the family property, where he gleans material for most of the building that he has done there. I have never seen him wear shoes.
Reciprocal Roof at Home-Farm.org
“Reciprocal frame roofs are highly regarded in the natural building community though there is a limited amount of information about them on the internet. Resources that we’ve found helpful are listed at the bottom of this post. There is evidence of similar structures dating back to antiquated castles of Japan and Eskimo huts, though I have yet to find images of these.
Low Tech Ferrocement Roof Building System
“Total roof size 360sqm approx
1 inch wire mesh 22 gauge
Days worked so far: 34 working days till last layer on last section laid.
Total cost so far $2800 not including patio post rebuild. Also waterproofing and painting not included but whole roof is covered.
New Tile Roof on our Earthbag Roundhouse
After about three years of life on our vetiver thatch roof we recently replaced the thatch with micro-concrete roofing tiles (MCR). MCR tiles and metal roofing are fast and easy to install, and both work well for roofwater harvesting. I like MCR tiles because they’re more durable and look better than most metal roofing, and don’t get as noisy in rainstorms. We cut the tiles with a right angle grinder and then covered the joints with cement. This roof should last 25 years or more. Also note, the vents on top will provide even better ventilation. (They’re screened to keep birds out.)
Further Information about Instant Shelters
Owen suggested that I elaborate on my suggestion for the use of magnesium cement in conjunction with basalt woven mats to create nearly instantaneous shelter. This idea stems from the work done by Michael Collins using magnesium cement (sometimes called “Ceramicrete”) in combination with other fibers, such as burlap or canvas. You can read a … Read more