Metal roofing is known for its resistance to weather, including
wind, hail, ice, and snow. It is less affected by hot-cold and
wet-dry cycles that destroy other materials. Commercial metal
roofs have been in service 30 years or more. Painted roofs are
credibly warranted up to 30 years. In addition to being energy
efficient, metal roofing is recognized as a sustainable building
material for several other environmental reasons. And, as a
“green” building product, metal roofing is rightfully becoming
more popular in the architectural community. Metal roofs
typically have a minimum of 25% recycled content. This level of
recycled content allows metal roofing to be routinely included
on listings for “green” and recycled content products. This is
especially important since the U.S. Green Building Council
program for certification of green buildings, Leadership in
Energy and Environmental Design (LEED®), awards either one or
two points for the weighted total recycled content of all
materials in a project. Metal roofi