Hello folks! We recently purchased an extreme fixer upper... The majority of the home is in pretty good shape, walls and ceiling, structurally sound. But the floor? Oh the terrible floor. Seems the home sits on a consistently damp spot. It's an older house, built in the last sixties... After all this time the cheap subflooring and the joists(about half of which was replaced around 12 years ago) are just in very poor shape. At this point, I feel it's kill it or cure it. And considering the times, we need to do it cheap. I also want a forever fix. Now I have been doing some rough price figuring, and it seems like all the lumber to completely retrofit a 1400 square foot house would be pretty expensive, even if we used the cheapest available materials. And then there is the matter of it all going to boot in 15 or twenty years due to the moisture issue. Soooo... I came up with an idea, and I want some advice on whether it would work or if I am just a lunatic for thinking it might.
Here goes... The house sits on a raised concrete block foundation. The depth, varyingly, from the dirt to the floor is about 2-3ft. I thought If I could fill this box formed by the cinder block with a great deal of rock from the property, and then a layer of medium aggregate gravel from the local rockyard, I could have concrete pumped in to form the typical 4 inch thick slab to be my floor. Is that nuts? I know there would be some structural logistics to consider... All of the joists and whatnot would have to be torn out... All the walls that they support would need to be fortified so the whole joint didn't tumble. I thought I could build concrete block footings(or pour, whichever) for posts that I intend to replace many of the interior load-bearing walls with. Would that be adequate? I really don't understand a lot about what keep a house up and together, I guess that is why I am here. I just think it might be possible. The rough figuring I did put concrete at about half of lumber, but even if it came out to the same price I would still rather have the rock solid concrete that will last forever rather than lumber that will need replacing in years to come.
So what do you think? Undoable? Doable? If it IS doable, how? Thanks so much in advance! ~*Chrissy