Our comp shinles are lifting only in the area when the wet leaves tend to settle. Should we nail the edges where they're lifting to extend the life of the roof a bit? Thanks, Kathy

My sister asked me to look at one of her rain gutters yesterday since she was getting water coming down off the roof falling behind the gutter and down the side of the house. She thought the gutter had pulled away and I told her I thought it might be just that a gutter spike came loose or something. (I don’t know diddly about roofs but I nailed some of my gutter spikes back in already). Too bad we waited till dark and the ladder I had was a little short. But as far as I could tell there was no shingle overlap – or any other kind of overlap - over the gutter. And it didn’t seem as though the gutter had pulled away or if it has it must be by a very small amount. Shouldn’t there be a shingle overhang or a drip-edge over the gutter? What seems worse to me (and I hope possibly I’m wrong ,it was dark) - it really seemed like the last row of shingles not only came exactly even with the edge of the roof, but they felt as though they were nailed or glued down or something right at the edge, and thus you wouldn’t be able to slip something under them (wouldn’t that be where the drip-edge goes to correct the problem?) But she lives in a townhouse and I know the builder did some pretty bad work in other areas. Does anyone know of cases where the last row of shingles would be nailed or glued right at the roof edge for some reason? Is that normal? Or if they are does that mean we are up a creek? Any thoughts would be greatly appreciated!