Are Exposed Fastener Panels Right For Me?
Exposed fastener panels are the most affordable type of metal roofing and siding panel, the easiest to install, and are readily available.
The main disadvantage is that the fasteners penetrate the panels and pin the sheets in place. The sheets cannot expand and contract in the same manner as a standing seam panel. The screws may back themselves out and have to be re-tightened or replaced.