Roofs are subjected to tear and wear due to constant weather exposure. If your roof isn't taken care of, mold and mildew can build up. If your roof isn't taken care of, mold and mildew can build up. It is important you have the necessary tools to take care of your roof. Make sure you have a utility knife. Utility knives can be used to cut drywall, trim asphalt roof shingles, and slice through fiberglass insulation. Utility knives are quite 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 services Haymarket, VA recommend the straight claw hammer. Invest in a circular saw to cut singles or panels. This electrically-powered tool can cut roof panels and plywood sheathing into an array of different sizes. It is essential your roofing toolbox contains a roofing nail gun. Compressed air is used to force the nails from the loaded gun strip unto the sheathing or shingles.