TOPIC: Defective shingles

I have had 2 inspections in the last week with manufacturers defective shingles. Both roofs around 12 years old.

The first one was really bad. Today's not as bad but still a concern.

The one I did last week both roofers that were called for estimates agreed but had different estimates.

Now correct me if I am wrong but I spoke to the roofer last week and he stated one way to tell (Besides the cracking) is the shingles are 36 inches instead of 39 inches.  The ones I measured today were 36".

Pics from today.

Good article here David that might interest some.

www.seattleroofbroker.com/ProductsAsphalt.htm

The top picture looks like they put a nail in the middle of the shingle or that a nail head left in the roof sheathing has come loose and begun to move upward. 

The second looks like normal cracking for a fiberglass/asphalt shingle 12 years of age.  The glues on the newer fiber shingles is stronger and does not allow for so much expansion and contraction, hence the cracking.

I have to weigh in on this one. I have been in the home construction business for many years, and I immediately recognized the problem with those shingles is inadequate ventilation. Did you check that out?

Too much heat buildup in the attic space will cause premature shingle failure.

It was a manufacturer defect with the shingle, nothing to do with ventilation or insulation on this particular house.

I just did an inspection for a roofing contractor who hired me on his prospective new house for calling out this particular roof and he replaced it under warranty from the manufacturer.

Hey Camille!  Welcome to the board!