My old house has a large, open crawlspace besides a small basement. I am going to do a radon test to determine if I have excess radon in those areas. Even if I do not find high radon levels I would like to seal the open dirt off from the house. What is the best way to seal the floor area of crawlspace? This house was built in stages. Some of the crawlspace would be from early 1900's and the rest plus the basement is from 1940's. The foundation is mostly soft brick with the basement walls being old cinder block. Bricks are laid on the ground with no foundation and depth varies with outdoor topography. If I find excess levels of Radon is there any good way to mitigate crawlspace area without installing suction system? Looking for ideas. Oh, the other catch is I am going to have to move dirt to level the space and/or remove dirt to be able to reach some areas of the wall. Just not as svelte as I used to be.
Last edited: