The rigid insulation in our crawl spaces was removed after hurricane Sandy (flooding 12-13" over the first floor) and it was suggested that we use closed cell foam as a replacement defense against the next flood. The foam would encapsulate all the ducts and pipes under the house (new but slight rust showing from the recent flood) and the UF wiring. We are installing larger valves to open when the flood returns and again goes over the registers in the house floor. The replacement flooring will be oak on 3/4" "Advantech" sub-flooring. (We cannot raise the house at this time.)
Is that a good idea? We worry about future access to ducts, pipes and wiring.
Thanks to any advice giver!