The original tin-and-lead-coated roof, used in Europe in the 18th century, it was often painted to protect its iron substrate. Unlike other metals, which are specified by thickness, or gauge, roofing copper is specified by its per-square-foot weight in ounces. Uncoated, its bright, gleaming shine quickly acquires a protective brown patina that can turn a soft blue-green over time. The oldest, longest lasting, and most expensive metal for roofs, copper is easy to cut and shape. Aluminum is a good choice in areas with salt air or acid rain since it doesn’t rust. Lighter, softer, and pricier than steel, aluminum comes in many of the same embossed styles under a coat of paint-aluminum is almost always painted-it’s hard to tell the two metals apart. Dipped steel can be left in a silvery state, but is generally painted to maximize longevity. To prevent rust, it’s usually dipped in molten zinc (making galvanized steel) or an aluminum-zinc alloy called Galvalume. This is the strongest, most popular, and, typically, least expensive option. Metal Roof Styles: Colors, Paint, & Accents 1. Choose the one that suits your climate and your budget, and that will enhance the style of your house. Material ChoicesĮvery metal has its pluses, whether it’s durability, color, or cost.
Most makers guarantee the products for as long as you own your house, and allow the warranty to be transferred to the next owner. Properly installed over plywood sheathing and the recommended underlayment, a metal roof isn’t noticeably louder during a rainstorm than one made of asphalt (52 decibels versus 46). On average, they have a 40- to 70-year life span, depending on the type of metal used, the harshness of the local climate, and the skill of the installer. That’s two to six times the cost of an asphalt roof. Installed, metal roofs run $7 to $20 per square foot, depending on the type of metal used. Costs & Durability of Metal Roofs Courtesy Drexel Metals What do metal roofs cost? After a succession of inferior, leak-prone substitutes, the roof regained its 1824 look in 1992 with the installation of terne shingles made of tin-coated stainless steel. In 1824, Thomas Jefferson replaced the original wood shingles on Monticello’s roof with ones made of terne, a tin-coated iron they lasted until 1855. Favored by a Founding FatherĬourtesy Thomas Jefferson Foundation at Monticello
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Up ahead: a look at materials and styles to consider, plus how to get the job done right, so your house will stay cool and dry for decades to come. And while it commands a premium-the components are expensive, as is the skilled labor for installation-a metal roof can boost a home’s resale value by up to 6 percent in some areas. Today, metal roofing is on the rise again: Its popularity has nearly quadrupled in the last 20 years. By the 1920s, lightweight, no-rust aluminum entered the market, as did paint coatings that added color and longevity to both aluminum and steel roofs. By the mid-1800s, metal roofing became more common as mass-produced steel began covering ordinary homes and barns. In America, copper and lead roofs appeared on important public buildings beginning in the 18th century, including New York’s City Hall in 1764. And properly installed, they need virtually no upkeep. They can save energy, thanks to their ability to reflect the sun’s heat. They’re durable, enjoying a life span of up to 50 years or more. They’re strong, able to survive hurricanes, hail, and wildfires. The advantages of metal roofs are tough to ignore.
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