New construction. Few weeks ago did the house next door. Some of you may remember. It had a truss pulling away from the T1-11 roof sheathing. Anyways this is the house next door same age brand new. At the back was a humped up area of the shingles. Gentle prodding felt like there was a few inches of just dead space behind shingle because of this. Seems like a bad situation and will crack/split over time and leak.
Also I thought these were nail pops but then saw how small they were and was wondering if maybe there was another culprit or issue? This home does indeed have T1-11 as roof sheathing.
I also wasn’t sure if the tar/sealant at the valley was a sign they didn’t use flashing. Considering the hacky crap I’m seeing it wouldn’t surprise me. I can’t see anyway would you comment on it at all?
I am aware they used regular shingles for a ridge cap which is wrong and will def crack and not adhere well over time.
Yes that was my thoughts too on the poor lapping. I could not see from the attic. Limited walkway and many trusses. Also, while I normally walk the roof first in this instance I actually did the roof last because it was very wet with dew when I arrived. I knew it would be bad so I really wanted to walk it.
It’s sometimes called a “California-cut” valley. With the California-cut valley, shingles from the smaller roof slope are installed across the valley onto the adjacent slope . A valley shingle is then installed parallel to the centerline and offset a couple of inches.
Those ridges are probably wrinkled underlayment. Can happen if the underlayment gets wet before shingles.
Like you said, it can cause accelerated wear and cracking.
Some of the shingles look like they are “fish mouthed”, which is usually from bad nailing, but if the wrinkle is continuous, it is the underlayment.
Yes I told my clients not to have the same roofer come back. Their work is obviously poor and they are biased and not going to go out of their way to pay for repairs.
