Roofs are subjected to damage because of factors such as violent weather conditions and poor maintenance. If you don't take care of your roof, molds, mildew and debris can result in structural damage and costly repairs. If you don't take care of your roof, molds, mildew and debris can result in structural damage and costly repairs. It is important you have the necessary 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 quite safe to use since . 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 replacement estimates Ballwin 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 various 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.