Rainwater runoff from roofs is a leading cause of damage to homes and commercial structures. Dripping water will rot fascia, trim work, decking, doors, windows and siding. Standing water can breed molds and mildew on foundations, in crawlspaces and basements. Long-term negligence may lead to excessive settling with foundation damage and cracking. If your structure does not have adequate drainage away from the foundation, or if you see drip-lines or splashback onto unprotected areas, then you need a guttering system. Channeling the runoff water from the roof to ground prevents these problems and protects your home.