Straw bale Walls with Earthbag Foundations

Earthbags can be used to build foundations for straw-bale walls. Extra care should be taken to prevent moisture wicking up into the bales (Fig. 17.12 & 17.13).

( iJf j j. through straw-bale 15" deep

. into earthbags below

100 lb. rawearthbag■ 50 lb. rawearthbags*

100 lb. rawearthbag■ 50 lb. rawearthbags*

plaster over straw-bale metal weep- screed or 1" diameter hose secured to tie wires

■ mortared brick veneer stemwal1

gravel capillary break

3/4" packed

gravel rubble

trench to dep

ith of frost

line

17.12: Grade level earthbag foundation for non-load bearing straw bale walls.

17.13: Insulated below grade level earthbag foundation for straw bale walls.

two rods rebar per bale, driven into earthbags 15"

all ""raw" earthbags poured adobe over 3/4" pumice or gravel straw bale two rods rebar per bale, driven into earthbags 15"

all ""raw" earthbags

Earthbag Foundations

straw bale

-•plaster down- to J-metal y 1 sloping rock veneer

H20 proof sheeting rigidfoam backfilled gravel trench with drain pipe for high rainfall areas

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