Roofs are subjected to damage because of factors such as violent weather conditions and poor maintenance. If your roof isn't taken care of, molds, mildew and debris can result in structural damage and costly repairs. If your roof isn't taken care of, molds, mildew and debris can result in structural damage and costly repairs. Because of this, it is important you have the necessary tools to take maintain your roof. First you will need a utility knife. They can be used to cut drywall, trim asphalt roof shingles, and slice through fiberglass insulation. They are pretty safe to use since they have a retractable razor blade. In addition to the utility knife, you will also need a roofing hammer that will refasten shingles and other roof coverings. A roofing hammer has two different head styles: one has a curved claw and the other has a straight claw. Most flat roof replacement Chesterfield MO recommend the straight claw hammer. To cut wood, shingles or roofing panels, a circular saw would be a worthwhile investment. This electrically-powered tool can cut roof panels and plywood sheathing into an array of different sizes. Roofing nail guns are very efficient tools for hammering nails in. Compressed air is used to force the nails from the loaded gun strip unto the sheathing or shingles.