There is no such thing as the perfect product, but there are
ways to find the most suitable material for each roofing
application. For every roofing job, you review the specifications,
understand your customer's wish list, examine the building and
consider which roof system will meet your customer's needs. When
considering metal shingles, knowing their good and bad attributes
will help you determine whether they are the best fit for your
When buying any product, you want it to last. Metal has been
proven to last longer than many other materials. According to a
Troy, Mich.-based Ducker Worldwide study in 2007, a nonmetal roof
lasts 15 to 23 years—composite shingles, 15 years; single-ply
membranes, 20 1/2 years; polymer-modified bitumen, 23 years; and
built-up roofing, 23 years—compared with metal roofing, 41.6
years. For a building owner, this difference in life span...
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