PALRUF® corrugated roofing panels are a chemically resistant and durable covering for DIY roofing and siding applications. PALRUF is extremely easy to install and maintain, and is available in a wide variety of colors. NOTE: Generally speaking, Palruf should be used only for open-sided, well ventilated projects. This is related mostly to heat build-up and the adverse affect it can have on the appearance of Palruf product. For totally enclosed structures, consider Ag-tuf UV, Suntop or Suntuf corrugated products. These products are engineered with wider service temperature ranges.