What you say is true, but you don't have to replace them, at least I didn't.
Since they curl up in the winter and flatten in the summer, a heat lamp
should be sufficient.
I solved this problem by making much larger mounting plates that leaves only
1/2" of the perimeter unsupported.
GM
----- Original Message -----
> You have to replace them -- it was caused, as I understand, not by the
> actuator pulling it down but rather by the dis-similar plastic covered
> fiberglass and each material's unique expansion and contraction
qualities --
> also the cause of many little cracks. Often the hood corners also turn
up.
> Kim
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