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Earthbag and roofing costs

 
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Pardon my ignorance. If I build an earthbag dome house, given the roof itself seems to be made in the same way you build the walls, does this mean I get to save on the roofing costs compared to a flat roof structure ?
 
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You can likely save a high percentage comparitively on materials. This will be offset with increased labor though. What is your time worth? Bag work and plaster work over say 8 foot high takes longer. I run a hoist off my scaffold for moving buckets up high.

This could total to a fair amount of cash saved, but if you are considering small roof square footages, run the numbers for all the costs (framing/sheeting/roofing/insulation/ceiling/bond beam). When dealing with smaller spaces, a proper roof may be within your financial reach thanks to the small quantities. Consider if an EB dome is appropriate in your environment.
 
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We built our earthbag home with beams going from wall to wall on a 19ft span in the master bedroom. And a center white oak post (12" diameter, 9ft tall) in main living area with a wagon spoke like center fanning out. Both have worked well! The beams were purchased at a local saw mill. 4" x 8" thickness. The beams were about $30 each
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Lisa Lynn
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Wagon wheel style beam across a 25ft span
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Lisa Lynn
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Location: Northwest Arkansas
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Beams
See more on zillow fsbo
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Solar Station Construction Plans by Ben Peterson -- ebook
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