Since it's been 10 years I don't know what brand they are but they are 25-year 3-tab pretty good quality I'm sure. It's a 4/12 pitch. I can see the tar stripe but it's like it's dry and not sticking. Other than that the installation job looks fine to me, straight lines, nailed in the right place, over felt into plywood. There are a few places where the nail popped up a bit and I have hit it back down after putting some roofing adhesive under the shingle.