I bought my house about three and a half years ago and had a brand new
composite shingle roof put on it. After some recent rain storms, I
noticed some discoloration in an area of acoustic ceiling, which I
assume is a sure sign of a roof leak. The wrinkle is that my roofer
has since moved away, and I'm not even sure he's still doing roofing
as a profession. How long is the warranty on most roofs? Do I even
have a course of action if my roofer is no longer in business, or am I
just SOL?

Thanks in advance.

-F