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coast of Maine | Devin,My dad did the crawl space of my farmhouse 50 years ago.It was built 1780"s and it was on a few stones.Used a Bobcat when they had no cage.He used concrete blocks and poured footings.He went a few feet at a time digging out the clay and adding post supports as he went.I did the big old barn(40x70x45 plus tall) maybe 40 years ago.It had one side low ceiling lower level.I used blocks,they failed after 20 years from frost heave and poor back fill I dumbly used.Re-did it with foam ICF blocks and rebar(lots).Used steel pier supports along the sill.Integrated them into the block forms and left adjusting nut/pad sticking out of ICF forms.This allowed poring of the concrete as a gap.Then we used PT 6x6 slid in on top of concrete (once cured) then lowered adjusting bolts so building is laying on sill.It can be done.Biggest PIA was then I had no mini excavator that you could use to eliminate any hand shovel work.The use of concrete blocks is a big no here after ICF came out.I have a repair to do on the bulkhead dad did on the 50 years ago dig out he did.The frost and his use of poor backfill back then.Im sitting in this 250 year old home as I type. | |
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100 year old house foundation
