Buzzbee

No fasteners at overlaps, just bonded seams. I do see this occasionally on homes but mostly on sheds or garages with low pitched roofs. Buzz

If you're talking about regular old mineral-surfaced composition roll roofing, the wrinkles are normal. But no one should be using this as a primary cover over a house. This is the stuff that you use over a wood shed -- one where you don't care whether or not the wood stays dry. It's simply not an appropriate material to use over a dwelling. - Jim Katen, Oregon I should have clarified that this is over the patio. Yes it is 90 pound composition rolled roofing. I am recommending that they monitor and replace the covering when (not if) they see cracks or loose seams.

I did an inspection on a house that has rolled roofing and roof covering is wrinkled. The seller said that he talked to the contractor that installed the roofing and he said that is normal. I don't think so but would like some of your expert opinions. The wrinkles have about a half inch bubble.