On the inside, the wood at the bottom rear of the garage is damp. There is a 3" space between where it seems a newer concrete floor was laid on top of the original and the rear of the garage. It is wet in this 3" space.
Upon further inspection, on the outside of the garage directly on the other side of the leak there is a slight 1/8" space between the concrete walk and the base of the wood singles of the garage. I can only assume that this is where the water is coming from.
What is the best way to stop the water from seeping into the 1/8" space? Caulk? Maybe a rubber moulding or something similar?
Should I do something on the inside of the garage, like waterproof the wood, or fill in the gap between the newer concrete floor and the wood?
Thank you for any advice you can give.