Tuftex PolyCarb 2.17-ft x 12-ft Corrugated Gray Polycarbonate Plastic Roof Panel84% Light transmission Shaded panel provides diffused light Perfect for extreme temperatures (270 F to 40 F) Lifetime limited warranty No special tools required to trim or install Lightweight and easy to handle This is a heavy duty product excellent for green houses Classic octagonal wave profile Should be installed over white color supports with proper ventilation Features Series Name PolyCarb Profile Corrugated Length (Feet) 12 Width (Feet) 2. 17