We had a new roof installed in November. GAF Timberline HD with all the GAF components required to qualify for the GAF System Plus Lifetime non-pro rated warranty. The valleys were finished with a method they called a “california cut”. These cuts that run straight up each valley don’t appear to be sealing down at all. Water and debris is infiltrating under these areas. Is this join supposed to seal down solidly? If not, what’s to stop the first hurricane wind from lifting it and peeling the roof off?
I uploaded another picture of the valley with the area not lifted by a boot but I’m only allowed to post one picture.