CA8522 Low Rib is an economical, light-weight and long-term roofing and siding solution. Designed for post-frame applications, the CA8522 Low Rib is engineered for an easy installation, whether directly onto a solid deck or existing roof. Each panel has a 3⁄8” seam height allowing the panel to curve along the frame of a building. CA8522 is versatile in its use and maintenance free, this panel is perfect for projects requiring an easy install and long-term use.