There's the library, there are Roofing and Siding Retailers, there's the WEB, and there are a LOT of manufacturer sites out there. I suggest you start pounding the pavement if you haven't done so to talk to people in-the-business and to start surfing the WEB with the same key-words you mentioned.
If you have more specific questions, post up. If you need help w/how to surf the WEB, find someone who does and you'll be on your way. My best to ya and hope this helps.
PS: If you need info, go to Home Depot or Lowes or some Home Center and find out the names of mfgrs. That should get you going too.