![]() A metal roof will make your house colder in winter.Check with the manufacturer of the product you choose. You can, but you have to know how to do it without causing damage. With textured roofs, minor denting is not readily visible. While extremely large hailstones can dent a metal roof, normal hailstorms will not. Metal roofs are susceptible to damage by hail.They may even be quieter than other roof types. ![]() Metal conducts electricity, but electricity is not drawn to it. ![]() It will increase the likelihood of a lightening strike.Here are the most common myths about metal roofing: Metal roofing has more than its share, perhaps because it has undergone so many transformations over the years. Myths and legends get started about all sorts of people, places, and building materials…. No worries about it filling up dwindling space in landfills. In addition, metal roofing is made with a large percentage of recycled metal-often 95 percent-and when its useful life is done, it can be recycled again. In fact, some insurance companies will give you a discount if you have a metal roof. And when metal roofing is painted with specially formulated “cool pigments”, solar energy is reflected and emitted (rather than radiated as heat into the attic).Īdditionally, metal roofs are effective in preventing the spread of fire when hot embers fall on them (i.e., from brush and forest fires). Metal roofs are lightweight, sometimes allowing them to be installed directly over old roofs. Near term, a new metal roof recoups a bit more of its installation cost upon home resale (6% according to Remodeling magazine) than does a new asphalt roof. By avoiding one or two re-roofing jobs during the life of the metal roof, you will more than offset the higher initial cost. They claim their products will last two to four times longer than roofs with asphalt shingles. Manufacturers routinely offer 50-year warranties and even lifetime, non-prorated warranties. The primary benefit of metal roofing is longevity. Standing-seam roofs are perhaps best matched to the simple lines of cabins and contemporary home designs. From a design perspective, they are a purer product but not suitable for every home. Standing-seam metal roofs look exactly like what they are–long sheets of painted steel with vertical seams. Some ‘stone-coated’ products receive an acrylic coating, in which stone granules are embedded. Viewed from a distance, they offer fairly convincing renditions of shingles and tiles. Metal roofing products can be stamped into many shapes and are typically installed as interlocking panels with hidden fasteners. In areas with high exposure to UV light, opt for a premium certified paint coating. Standard certified products may be used in most areas. Some manufacturers participate in a certification process developed by the MRA. In areas by the sea, opt for an aluminum-based panel. The Metal Roofing Alliance (MRA) recommends a galvanizing thickness level of at least G-90 for residential applications and an AZ-50 or AZ-55 designation for galvalume coatings. ![]() The coatings are offered in several thicknesses-the thicker the coating the longer the service, and the higher the cost. Of the two, galvalume offers the longer service. Steel roofing products are coated with either zinc (galvanized) or a mixture of aluminum and zinc (galvalume or zincalume). It is sometimes used for special features, such as the roof of a prominent bay window. Copper, often called a natural metal product, is neither coated nor painted, because it weathers without corroding. Aluminum sheets don’t require the metallic coating but do get painted. Rolls of 24- or 26-gauge steel sheets are given a metallic coating to prevent rust, followed by a baked-on paint finish. Residential metal roofing is generally made of steel, aluminum, or copper.
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