We are in the process of having our house re-roofed and seamless gutters installed. Although the roof installation looks good, the gutters were horribly installed. They will be removing them and reinstalling. However, we are being told some things by the contractor which we question. I'm hoping someone can comment on these issues.
My understanding is that seamless gutters are in fact seamless except for the corners. NO seams within a straight stretch. The contractor is stating that because the roof line and/or rafters are not perfectly straight, that they must put seams in within the length in order to compensate for the change in angle. The amount of discrepancy in my opinion is negligible, and I would think, the norm for any roof. If that's true, I'm sure that there is a way to deal with minor discrepancies without having to make a seam. Which of course defeats the purpose of seamless gutters. The downspouts should also be seamless except at joints in order to hug the side of the house/deck, etc.
Any seams (corner or otherwise) should be caulked and riveted. Should caulking be applied in the inside lip only, or also on the outside? Should it be a big glob of caulk or fairly neatly applied?
Is it true that there are only a very limited colors available if you want to have the color manufactured into the metal? And if you want another color it would have to be painted after the length is produced?
Is there some sort of authority on seamless gutters that we could reference if we continue to have a dispute on any issue?
Thanks very much for your help on this!