Standing Seam Metal Roofing
Standing seam steel roofing is the most popular residential metal roofing today. Standing seam sheet metal roofing refers to a flat metal panel that is seamed or interlocked together along the edges of a turned up vertical leg.
Metal roof systems fall into two categories: structural and architectural. A standing seam sheet metal roofs is an example of an architectural system. The standing seam can be mechanically seamed, or have snap together seams, tongue and groove seams, or hooked seams. Standing seam metal roofing panels can be custom fabricated in the shop or roll-formed on-site. These roofs are designed to be a watershed system rather than a water barrier system, and require slopes of 3:12 (or 14 degrees) or greater.
Metal roofs are durable, fire retardant and almost maintenance-free. They are also energy efficient; metal reflects heat and blocks its transfer into the attic. Research by the Florida Solar Energy Center showed that metal absorbed 34 percent less heat than asphalt shingles, and homeowners switching to metal roofing reported saving up to 20 percent on their energy bills. Steel roofs offer other environmental benefits as well. They are made from between 60 percent to 65 percent recyclable material. Because they weigh very little, metal roofing can be installed over existing roofs.