Sorry to hear about these experiences with PVC roofing... BUT
It's pretty important to know the source of this material. As far as I can find, Amazon aside, Dicor makes a PVC roofing and so does Lasalle Bristol, both very reputable co's.
It would be very helpful for members here and me, who are looking to hit the button at purchasing PVC roofing material for a replacement roof from either of these 2 co's.... if these issues can be traced back to either of these co's.
Like I said, I'm looking at PVC because of ease of repair and strength of material and warranties and my research over the last week tells me PVC is the way to go. Then after many years I decide to check this forum, which I used to participatein yeras back to find this post!
cheers folks