Yes, I'm thinking of doing just that. I'm sure the neighbors complained about the eye sore and so they used an ordinance to force me to take it down. So, yes, moving to the roof I think might work.
Would you mind posting a link to the ones that look like shingles?
I know that the company 'Eternit' has roof tiles called 'Solesia'; real 'shingles' I haven't seen in real life myself, but one of the first Google hits is http://www.dowpowerhouse.com/ .
Would you mind posting a link to the ones that look like shingles?