I have the same problem as a previous member. The garage has drains and the contractor poured the entire floor with a slope toward the drains in the middle of the floor. Since about one foot of the floor is outside the garage door closing line, rain seeps (heck..more like "floods") under the weather strip at the bottom of the door. I need to create a "crown" where the highest point will be at, or just inside the door closing line. I recall seeing an ad offering re-surfacing of old concrete and thought that might be an alternative to saw cutting a section out and re-pouring a crowned section. I would greatly appreciate expert solutions. Thanks - Mark