As a homeowner, it is important to know how much a contractor may charge for the repair or replacement of the roof of a home. An owner should know how to measure the size of the roof as well as the length of the valleys, dormers, and ridge vents to compare against any estimates that are received. Armed with the knowledge about basic measurements, a homeowner can approximate the amount of material needed for the replacing of a roof. That knowledge can save a homeowner from the result of a miscalculation as anyone can make mistakes when calculating an estimate,…