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Introduction:
Tired of costly roof repairs? Cracked, curling, and peeling shingles? Rotting shakes or broken tiles? Metal roofing is a compelling alternative in today's search for a durable, maintenance-free roofing solution that stands up to severe environmental hazards like earthquakes, wind-driven rains, hail, fire and intense heat. An excellent choice for both residential applications, today's metal roofing comes in a dizzying array of choices. Some styles mimic more traditional looks like shake, tile and slate -- at a fraction of the weight.
In the past, metal roofing was used primarily on agricultural and commercial structures. However, during the 1940's, significant advances in base metal and coatings accelerated the use of metal into more and more residential applications.
According to the Metal Roofing Alliance, an estimated 5 to 8 million U.S. households enjoy the benefits of metal roofs. Growing at over 150,000 new installations per year, metal roofs are projected to account for over 10% of the total North American roofing market by 2003, up from just over 4% in 2000. This exponential adoption is a result of improved styling and color choice, proven long-term performance and durability, increased consumer and contractor education, and growing emphasis on fire and seismic risk reduction.
The most common metals used today in new installations include treated steel, aluminum and copper. Copper has been used for centuries. The variegated green patina of centuries-old copper roofs can be seen on villas and churches across Europe. In fact, copper can last 500 years or more -- protected by the thin film of oxide that shields it from the elements. Today, copper is popular on bay and bow windows as well as rain gutters, downspouts and even entire roofs.