I posted earier about delta fl and now I am trying to approach this question from a different direction. I am wanting to finish a room in my basement in a 1906 home in Portland, Oregon (lots of rain 9 months and not much the other months). The house is built into a gentle sloped hill with the daylight basement in the back. In the front of the house are two huge 100 year old trees--oak and elm.
The room I am wanting to finish has a large crack in the concrete floor that goes out in several directions. There has been some upheaval over the years so that one side of the crack is about 1/8 of an inch higher than the other. I have not really noticed change in the 20 years I have been here.
At times of the year, the floor will get damp looking patches on it--until my dawg died, I thought it was using the basement as an emergency pit stop when I was at work--but I could never catch it. The patches continued after Manda died. Never standing water, just irregular dark puddle shapes on the floor. When I tape plastic down, there is no condensation.
So the person I am working with has suggested getting a concrete sander to even out the concrete for the floor. Then after I was not sure of that, he suggested cutting a two foot hole in the concrete to see if there is a tree trunk there or if something else needs tending to. Then we would fill it back with concrete.
What do you folks think about either of these ideas? We would then use some kind of epoxy to even out the floor.
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