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25mm Polycarbonate Sheet


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25mm (0.9843") 3-Wall channels trap air between 3 walls.  The flutes (channels) run the length of the panel. Install panel with flutes vertical. Panel ends should be capped or sealed with special vented 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
  Opal Clear
Thickness 25mm (approx. 1") 25mm (approx. 1")
Light Transmission 35% 72%
R-Value 2.941 UVI 2.941 UVI


Tip: The opal color 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. Unlike the Bronze panel, Opal allows more of the growing light spectrum needed by plants for healthy growth.