Exterior drainage can refer to a number of things, but in general, anything that directs the excessive water away from a house or structure can be classified as exterior drainage.
Tying in the downspouts or regrading around the structure for positive slope can be very beneficial to help alleviate excessive water. Most engineers recommend a six inch drop every ten feet.
Exterior excavation of the structure, installing a perimeter drain, and coating the walls with a waterproof membrane are optional methods in waterproofing a basement or crawl space.
Contact Advanced Solutions today for a free estimate regarding exterior drainage solutions.