Roofer #1 only uses PVC, and tells me he'll wrap it over the low parapets and put a metal angle over the outer edge and wrap the PVC around the chimneys.

-All wood floors refinished and walls and ceilings painted 2013-2015 by Olek construction- Installed new city water and plumbing 2013 by Venhoff Plumbing Co. and Louisville Water Co- Updated all electrical, included box, added outlets, switches, ceiling fans, & more overhead lighting,also fixed any electrical issues that would be considered not up to code 2013 by Allen Electric- Chimney cleaned by contractor and Buck stove completely restored by Chim Clean Contractor 2015- New roof work and new Roof coating for metal roof by Stanley Allen Galaxy Roofing 2013-New Sunroom with energy efficiency windows, walls and ceiling insulated with concrete flooring 2014 by Carpenter Jeremy Smith and Victors Concrete Co 2013-New Washer and Dryer 2015 -Painted complete exterior of house and caulked all windows Anthony Dean Painting 2014This and more is all documented for tax purposes.2.

Are they some type of metal  (which I always imagined to be quite expensive), or what? 

A good place to start is the County website. http://www.indy.gov/eGov/County/Treasurer/Sale/Pages/buyers.aspx.

Metal roof (needs to be inspected).  

I know many poor people who work every day collecting scrap metal, working odd jobs and hustling to survive.

You can a metal patch with fiber mesh tape over it at HD.

Feel free to jump in the community here and also take advantage of the treasure of knowledge here.

Feel free to jump in the community here and also take advantage of the treasure of knowledge here.

Feel free to jump in the community here and also take advantage of the treasure of knowledge here.