I have the same problem, unlevel concrete. This sounds like it will work. But I also wash my cars in the garage sometimes. How would you squegee out the water with the rubber threashold in the way?
I have a 30x40 pole barn type shop with the double bubble insulation wraped on all walls and ceiling. I'm wanting to put up some OSB and peg board on the walls. Would it be cost effective to put some kind of other insulation on before the OSB?
I did a 24x24 with the quickcrete, non clearcoat. 2yrs ago and after one year my tires tend to pull it up. I guess two coates might have helped.
good luck!
I have a new 30x40 I can't decide what to use on the floor.