Ray makes a good point, but most yards have this slope that he is talking about. Before building your home the contractor should have brought in a foundation of dirt in which to build on. The edges of this pad are sloped away to cary water away from the house/foundation as mentioned in the above article.
Considering that your foundation is correct you won't have any problems with your structure when using our products. If your foundation is incorrect there isn't much anyone or anything can do for you. Including a gutter...