Polycarbonate Specifications & Tolerances:

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• Thickness plus or minus .5 mm

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• Width plus or minus 1/8"

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• Length plus or minus 1/4"

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• Visual defects (inclusions, bubbles, black specs, gel,etc) no visual defects are allowed by inspection from a distance of 1 M. If not visible by using this method, sheet would be considered acceptable. Only 2 defects for every 3 linear meters of material with defect size not exceeding 1 mm in diameter or if not visible from inspection from 1 mm distance will be acceptable.

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• Condensation Multi-Wall polycarbonate is not a sealed unit and condensation will occur between the layers. This is normal and can not be avoided. Differences in temperature and/or humidity between interior and exterior of the structure creates this situation. Typically when the sun shines on the sheet or when climate differences stabilize the condensation decreases or goes away. For condensation to drain properly the channels must be running vertically.

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If total elimination of condensation is crucial then use insulated glass. Please note that insulated glass seals eventually fail and condensation will occur. Insulated glass units come with a 5 or 10 year warranty. No warranty is available in high humidity applications such as greenhouses or pool enclosures, or in overhead applications such as skylights.

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• Manufacturer We most often ship Verolite or Lexan, but may ship another brand of equal or better quality, depending on supply.