Metal

There are two types of Metal Roof systems to chose from, Standing Seam and Exposed Fastener. Of the two types of metal roofs, Standing Seam is the best choice for both residential and commercial purposes due to the expansion capabilities. For example, the panels are locked together at the seams (ribs), and under each rib is a clip that fastens the panels together and allows them to glide back and forth freely as the metal goes through thermal expansion. On the other hand, a screw-down panel metal roof system (also known as an exposed fastener) is installed by screws that are screwed straight through the panel, which leaves no room for expansion and contraction. Also, many homeowners prefer Standing Seam due to the much more sleek and appealing look.