Scoria Shallow Frost Proof Foundation details

[exclamation3mark]

So confused. Your foundation is not bound with cement? Even a very loose cement with alot scoria mixed in just to bind it abit? wow

[festismr]

@exclamation3mark , thanks for looking. Google "rubble trench foundation". A quick summary is provided by the wikipedia article

[festismr]

@exclamation3mark The earthbag wall replaces the need for a grade bond beam. Our soil is very stable and hard after the first few inches of depth.