Roofs are subjected to tear and wear because of various types of weather exposure. If your roof isn't taken care of, molds, mildew and debris can cause structural damage and costly repairs. If your roof isn't taken care of, molds, mildew and debris can cause structural damage and costly repairs. Because of this, it is important you have the right tools to take maintain your roof. First you will need a utility knife. Utility knives can be used to cut drywall, trim asphalt roof shingles, and slice through fiberglass insulation. Utility knives are pretty safe to use since the razor-sharp blade can be retracted. 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 Residential Roofing Fenton MO recommend the straight claw hammer. Invest in a circular saw to cut singles or panels. A circular saw is an electrically-powered tool can cut roof panels and plywood sheathing into an array of different sizes. To hammer nails in, abandon the manual hammer and opt for a nail gun. Compressed air is used to push the nails from the loaded gun.