Rebuild my burned barn on original foundation?

by John Donohoe
(Williamston, MI)

My 1920s/1930s barn burned to the ground a few weeks ago. About 40 x 50, had a poured floor and foundation walls about 40" high all around except door openings. Is the foundation re-usaeble?

Hi John,

Thank you for your question. I am so sorry to hear about your loss.

Regretfully I really can't answer your question directly because I am not an expert in the area of foundations and what extreme heat can do to concrete.

However from what I do know from building a backyard fire pit is that concrete can crack and even explode under extreme heat. I have heard that this is caused by moisture in the concrete expanding very quickly, building pressure and then fracturing the concrete from the inside.

Having said that, I would assume that in most cases the concrete would have to be replaced, however it might be ok, like I said I am not an expert in this area. The best advice I can give is to contact a local concrete contractor, have them evaluate your foundation and see what they have to say.

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