What not to do? Don't follow instructions & see what can happen. Multiple mistakes.

Select Polycarbonate..Choose Install Method..Quote-Order..Guide & Samples .

 

Trees overhead, mold inside sheet, min. 1/12 (5%) pitch not adhered to, overhang too far.

Screws in U-Profile at lower edge not 8" On-Center, allowing pollen water to enter.

Overhang too far, screw not close to sheet edge, Cap will not clamp down properly.

 

 

Silicone not used at lower edge of Cap, allowing pollen water to enter.

 

Cranking down on screws, dimpling Cap and silicone as assumed solution.

 

Cranking down on screws, dimpling sheet, no support for full length of sheet,

Cap stops short, aluminum tape used at top edge, not U-Profile. This will fail.

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