Painted Slate Roof

Painted Slate Roof Images

Painted Slate Roof

Painted Slate Roof Description

I recently purchased a Second Empire home with a slate mansard roof that was built in 1876.  I'm told that the slate is in good condition and (http://maplered.com) that it will far outlive me.  My problem is that a previous owner painted it (twice!).  I imagine the reason for this was to cover areas where they had patched some spots with tar (instead of repairing them properly).  I have yet to find a contractor in my area who has ever dealt with this or is willing to give it a try.  Is it possible/practical to remove the paint from the slate? If so, how would I go about it?  I'd hate to replace it since early photographs show that it is heavily patterned, very ornate.  Thanks.  Gene