Crack in Concrete/Engineered floor
We are installing engineered hardwoods over a concrete slab on our main floor. However, there is a crack in the concrete approximately 1/16-2/16 in wide. It appears that the floor settled on one side of the crack and it now slopes towards the outside wall. This causes a drop of about 3/16-1/4 in drop over 6 feet. (The concrete on the other side of the crack is perfectly level.) According to the instructions on our hardwood floors, this is too large of a drop...so this has to be fixed somehow. My husband wants to get a concrete sander, and attempt to sand away at the crack, but that sounds like a ridiculous amount of work. Couldn't we just fill in crack and gradually slope it towards the outside wall?