This roof covering is not sealed very well at the valley flashing. It appears as the shingles run perpendicular with the valley flashing all the way up to the ridge and then the horizontal install of the shingles overlaps. The sealant strips are not working well and I think this is not a typical installation. The shingle to valley flashing is not sealed with asphalt cement/tar. I have seen horizontal shingles installed with ‘cutting the points’ but I havent seen this type of install.
I am seeking advice regarding this install and how to write it up. Thank you.