OK mudhouse (Sheri) and I have been discussing problems with the twinwall polycarb panels and it's time to make a new thread about it.
This spring I noticed several small holes in the roof panels, smaller than dime-size, in my just-one-year-old-10x12HFGH.
To which mudhouse replied:
I'm really disheartened by this...I'm worrying about the panels being manufactured in a defective manner...I have had a lurking concern that IF there is a panel deterioration problem, it may be heat related...I note that the three mentions of this problem so far (the Tucson person, yours, and Jamesy40's) have all happened in southern states.
Then I said:
Sheri we are in sunny So. Central Texas--yes it gets hot here, but frankly I suspect UV as the culprit. If you have looked at all at other types of plastic panels (that you get at Home Depot or Lowes) these typically have a side that is "UV protected" somehow, and they even state that if the panel is used in such a manner that the underside is exposed to light, that these can fail as well. Couple thoughts:
1. We should start a new thread!? OK I HAVE!
2. The holes are small and on one side only (so far) and limited to a single "channel" of the polycarb. Time to do something!
3. Given we are in the Sunny South and our GHs are overexposed to sun as it is, we should consider painting the roof.
4. There's a product out for GHs that apparently changes color; white-to-clear-and-back or some such magic. Prolly way expensive.
Gotta start researching what kind of paint(s) might adhere to the polycarb. Then my thought is to flip my damaged panels over and paint the good sides. Heck, even in the dead of winter the sun drives inside temps to >100 around here--we could use the extra shade that paint might provide (roof only I'm thinking, for now).
Need some feedback from anyone who's tried to paint their polycarb!!!