There are few expenses in the home greater than that of installing a new roof. However, fortunately, most shingles are designed to last for twenty to thirty years, often longer, so replacing your roof is not something that most homeowners will do very often. Like most home repairs, in regards to actual technical ability, roof repair and installation is not very difficult.
Of course with that said, there are certain aspects, like ridge-lines, vents, measuring, and overhangs that should not be done without experience or at least some understanding of the principals involved, but there are also many things a homeowner can do with little experience to help save money.
The following guide provides an overview for installing a new roof or replacing an existing one.