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8mm Polycarbonate Sheet


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8mm (0.315") Twin wall channels trap air between two walls. For new construction, the twin-wall design provides an excellent value in price, insulation, and durability, and is competitively priced. Tough but flexible polycarbonate has more strength to resist heavy weather. The diffused light is excellent for growing plants. The flutes (channels) run the length of the panel. 

Install panel with flutes vertical.  Panel ends should be capped or sealed with Vented Polycarbonate Tape that allows interior condensation to escape.  Dimensions + or - 1/8".

10-year limited warranty on properly installed MultiWall polycarbonate against 

  • premature yellowing
  • a loss of more than 10% of the original light transmission
  • breakage of the top layer caused by 1” hail
  • Warranty may vary with different manufacturers
Bronze Opal Crystal
Thickness 8mm (approx. 5/16") 8mm (approx. 5/16") 8mm (approx. 5/16")
Light Transmission 42% 57% 81%
R- Value 1.7 1.7 1.7


Tips: The Opal color is a diffused material that is recommended for roof applications, especially in southern states, and at higher elevations where solar radiation can be intense. The insulating, internal air space reduces condensation, making it ideal for a patio roof.