[redpoint5]

I can dispose of the roofing material for $10/yd, or $87 per ton. How many yards and tons would you imagine a 2 story, 2100 sq/ft house would have?

... That reminds me that I need to buy a measuring tool so I can figure how many squares I'll need.

I still don't know if there are advantages or disadvantages to leaving the existing roof on. I'd think it would offer an additional layer of water protection and insulation.

Don't know what ice guard is. I'm planning on putting felt down, if that's what it is.

I'm interested in a ridge vent, but don't know how difficult that would be to do. I like the idea of getting rid of the plastic vents altogether and just having a continuous ridge vent, but I don't think I have enough ridge. The 4 sides of the roof are almost triangles that meet at the top, leaving a short ridge of maybe 10 ft.