For the stemwall between ground and 50cm above ground i suggest you try tyres filled with rocks.
Straw bale reciprocal roof.
Inside curves and color create a feminine ambiance.
It took charlie a little over a year to build his home with a reciprocal roof and lime plastered straw bale walls.
The straw bale roof constructed by dr zhang and blue mountains straw bale builder jason dash only took one day to erect.
Here are some pictures of a beautiful double reciprocal roof i found.
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Zhang s next project is to construct an entire habitable building in dubbo in collaboration with john dash and the landowner.
Granted it was smaller bale sections and they had rough rendering covering them.
Straw bales well protected with post and beam or else cob on its own are good options.
It would provide a better form of insulation than bats as they are completely sealed and you only have to look at the results of bush fires.
Charlie s home is designed from the natural resources available on the land using stone roundwood straw bales clay turf and lime.
Like a tyre or two full of rocks.
Firstly you would not use a full bale in the roof and secondly i have previously seen a completed straw bale roof insulation.
It was a hell of a task to pull it off especially since we loaded all the soil onto the surface of the roof one bucket at a time sadly we never stuck around long enough before moving to kentucky to see the roof flourish with plant life.
A bountiful garden blesses this earthen plastered retreat with flowers and organic food.
But i am also hungry to learn more about the physics strengths and weaknesses of these beautiful elegant yet simple roofs.
If you use posts they should go on top of something that won t let water seep up through it.
All in all it cost charlie about 15 000 23 000.
I am becoming more and more enamored with the idea of a reciprocal roof for my own round cob straw bale home.