A metal roof can be a good choice for homeowners as they are durable and insulate the home well, and can be easily recycled when you're ready to replace the roof. If you've never had a metal roof installed on your home or other building before, note a few questions you may have about the material and its installation and then discuss these with a contractor so you can ensure your metal roof is protected for years to come.
1. Can other materials be used next to a metal roof?
Note that some metals, when mixed or touching each other and when they get wet, can more readily cause corrosion because of how the materials interact. When you have a metal roof installed, it's good to ask the contractor what other materials should be used next to it, for items like gutters, downspouts, roof vents, and the like. For example, copper pipes should typically be avoided when you have a metal roof. Your contractor can usually give you a list of acceptable materials and those that should stay away from your metal roof so you know it's always protected.
2. Can a metal roof be cut without damage?
You may want to eventually cut your metal roof to make room for a vent, fan, TV antenna, and the like, and wonder if this type of cutting will damage the metal roof and cause rust or corrosion. In many cases, the zinc coating that is often used on a metal roof will protect those edges so that they don't start to corrode or rust, but this too is a question to ask a contractor. He or she may recommend that you always cold cut the metal rather than use a hot form of cutting such as a blowtorch, in order to protect that coating. Whatever their recommendation, note that it's usually safe to cut the roof but your contractor will give you guidance on how to do it without damaging the materials.
3. What if a home is more prone to high humidity levels?
Most metal roofs will resist corrosion for years, but if your home is on the beach or in an area with high humidity levels, a contractor might recommend a material with a special coating. This will ensure the metal is given more protection from potential corrosion. You may also ask about potential corrosion from nearby production facilities that create more fumes and emissions than usual. Your contractor may have special recommendations that protect your metal roof in these settings as well.