How would you build earthbag walls up to 12 feet above ground on pier footings? A reader asked me this recently. Hmm. Moving tons of earth up that high would be difficult, and that got me thinking of alternatives. One solution I came up with uses an insulation blowing machine and hand-held bag sewing machine to build walls with rice hulls, perlite or similar lightweight insulation.
Here’s the basic process. One or two workers with large grain scoops shovel rice hulls from a truck directly into the hopper of an insulation blowing machine. A bag filling crew working on a wood framed floor fills and sews bags closed. Other workers stack the bag walls. All walls are tied down with poly strapping and then plastered. Please leave a comment if you have suggestions for improving this idea.