2' x 8' SUNTOP CORR PANEL, GREEN | SUNTOP Corrugated foamed polycarbonate is a breakthrough innovation from Palram. It's a lightweight roofing and siding product that is opaque, rigid and highly impact resistant. In fact, it stands up to garden rocks, golf balls and even baseballs. Suntop is available in rich solid colors that provide 100% shade and protection from harmful UV radiation. Suntop can stand up to Mother Nature's full range of hot and cold temperatures and her most brutal weather.