See what can happen to multiwall polycarbonate on less than 5% (1/12) pitch------- Back to Home Page
- Condensation will not effectively drain out of the sheet.

- Leaks at lower edge much more likely

- Capillary action will suck water up the channels

- Mold & mildew will gather, turn black and never go away

 

 

Worst case photo, heavy pollen, virtually no slope, never washed.