1.   A. If the shingles are painted, or stained with a solid color stain, you can power-wash, which will take off loose paint or stain.

2.   Can I paint those shingles?

3.   I think the problem is most likely due to the fact that the shingles were painted instead of being stained.

4.   Is there a way to paint the shingles to make the roof better looking?