Approximately year ago I have ordered reroofing work on the split level house with a pitched roof and plywood sheeting. Old roofing materials have been thorn down and new asphalt shingle including ice/water shield up to 3 feet above the edges and around the house as well as ventilation fan and ridge vents. It worked well over the summer and most rains did not make me scared of leaks. During last few subzero temperature days in Midwest (I reside in Chicago, Illinois) I noticed leaks at the ceiling of some spots. I checked the attic and noticed that there are several wet spots with dripping water from the rafters over the flat laid loose insulation above the ceiling. I also got surprised seeing frost around the edges of the roof just above the gutters on inside surfaces of the plywood showing frozen moisture. It covers actually about 40% of the interior plywood surface just about the line where the ice/water shield was installed. I wonder what possibly can cause this destruction and how to go about fixing this issue. The strange part of it is that when reviewed I find that wet dripping occurs only on 2 walls and not all, second where is the frost from and why is that leaking now and not the last summer? I am loosing the roof I do understand, but I sincerely appreciate your opinion advise. I will be happy to email you 2 photos of this problem if you only agree to briefly review it.
Once again, thank you very much