I am purchasing a new home. There is a small outside patio that does not have enough slope to drain rain water off. What would be a easy solution to this problem without having to complete redo the patio. Is there a concrete topping that can be applied to the existing slab to create a slope? The patio is about 10 feet by 15 feet. Anxious for a solution. Thanks :)

You might consider getting an estimate from a concrete jacking company. They can pump a slurry under the slab nearest the house. It would actually jack up the back half of the slab. I have watched this done but never paid for it myself so no clue on the cost.

Hey... sounds like an opportunity for a new deck (with a drain underneath).