There are earthbag articles in these other issues: #52 An Earthbag/Papercrete House; #28 Earthbag Construction; #16 Earth Shoes: Earthbags (used as foundation); #57 Earthbag Structures in Disaster and Poverty-stricken Areas. Subscribe to TLS to enjoy more articles like this or purchase back-issues at The Last Straw website.
Any suggestions on where the frames for filling earth bags can be obtained?
I’m not sure where you would find the kind of frame that Kaki and Doni used. There are a lot of ways to fill earthbags besides using the frames for support. One simple way is to cut the bottom out of a 5-gallon bucket, or something similar, and using that to hold the top of the bag open while you shovel in the fill material. I have also used the top part of galvanized chicken feeders that are about the right size.
In the case of combining earthbags and strawbales would you have to put any sort of barrier between the strawbale exterior wall and the inner earthbag wall to keep the strawbales from wicking moisture from the earthbags? Would that be more of an issue if executing the hyperadobe meathod which uses knit raschel bags instead of solid bags?
I live in Wyoming and the virtues of each method and their cost effectiveness greatly interest me and possibilities for building our future home.
If you are thinking of a double wall with earthbags on the inside and straw bales on the outside, then I don’t think there needs to be any barrier. Both straw bales and earthbags are better left breathable. The earthbag wall should be thoroughly dry before lining it with the bales, so there is no chance of any moisture migrating that way. I think that this is true whether using polypropylene bags or raschel netting. A wall arrangement like you propose would provide an excellent combination of thermal mass and insulation and should make for a very comfortable home.
If you want to place straw bales on an earthbag foundation, then a moisture barrier between the two of them might be a good idea.