Originally Posted by nealtw
Oldog; Hold a square up to the second photo and see the slope of the dormer, the rain deverter at the joining point is level. That's my story anyway. This roof is not looking good. I will bet someone put 2" foam under this roof without doing anything about flashing.
Neal, I understand that the dormer roof appears to slope back toward the shingle roof. This may or may not be true and it really doesn't matter at this point. What I was trying to get across and I guess it was misunderstood, is that the patch over the old membrane on the outside edge will stop water run-off. The installation specs on multi-ply roof systems always shows membranes lapped over not under like they show in the pic. On single ply roof systems, the drip edge is installed over the membrane and then a cover strip is applied over the drip edge and single ply sheet, this is not the same application process as modified bitumen type roof systems.
Holding a square to the pic will give you a distorted view because the pic was taken higher on the roof than the edge of the drip edge on the dormer roof and pics them selves can make elevations look entirely different because your seeing 2-D not 3-D.