1Can I roof over the top of my existing roof?
Yes, you can. But there are some things you need to know. The question often comes up about whether an existing composition shingle roof should be torn off or if an overlay (or recover) is possible. Overlays save on time, labor, and disposal costs. If the existing roof has only one layer, lays flat, and there aren’t any problems with the roof deck, removal is not necessary.
2I hate the color of my shingles. Can I paint them?
Yes, you can but it's not advisable. Shingles lose their granules over time. What you can easily wind up with is a splotchy looking roof. Keep them painted every few years, though and you'll be okay. Another thing, shingles are made so that there are variations in coloring. With a painted roof, there will be no variations. It will be all one color.
3The roofer didn't remove the little plastic strip from the back of my shingles. Should this have been removed?
No, it does not need to be removed. That particular brand of shingle is designed so that the sealant seals right through the strip. The strip is there to help keep the shingles from sticking together before there installed.
4I want to use staples instead of nails to install my shingles. Is this method approved?
No. Never use staples to install asphalt shingles