Roofs are constantly left exposed to the weather. All roofs demand consistent maintenance that can be handled by the owner or a professional roofer. Here are some tools homeowners can use to make sure any roof is maintained correctly. Utility knives 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 help you finalize routine maintenance tasks. replacing half a roof