A roof is consistently battling the elements. If your roof isn't taken care of, mold and mildew can build up. Because of this, it is important you have the correct 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 quite safe to use since the razor-sharp blade can be retracted. Aside from the utility knife, you'll 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 find a roofer in my area Proctor, MN 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 push the nails from the loaded gun strip unto the sheathing or shingles.