A roof is constantly battling the elements. If you don't take care of your roof, mold and mildew can cause structural damage and costly repairs. Because of this, it is important you have the necessary home siding repair Columbia MD tools to take maintain your roof. Make sure you have 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. Besides a utility knife make sure you invest in a roofing hammer with a straight claw. To cut wood, shingles or roofing panels, a circular saw would be the best tool. 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.