Roofs are constantly left exposed to the elements. Roofs also need consistent maintenance that can be taken care of by the owner or a home siding replacement Columbia MD. Here are some tools homeowners can use to make sure their roofs are cared for properly. A utility knife can be used to trim shingles or expose nail heads. Invest in a circular saw, a roofing hammer, roofing nails, a roofing nail gun, and a pry bar. These items will allow you to complete regular maintenance on your roof.