@mmd
get back to us in a while with real costs, K.
I'm ready for my 3rd (third){3x asphalt shingles} (Thats -->3 roofs) in 33 years I used high end shingles.
Now I will need to remove and reinstall my PV array (
except its only 3.5% efficient) and reshingle [except i'm 68].
(I bought the house specifically as the long axis places the south roof faceing 195 degrees for PV maximizing in 1983)
You are correct it (asphalt) is cheap.
You are incorrect that PV shingles are expensive, you will only need to buy your roof, ONCE and not remove and replace the PV array every time you reroof, however, this is a SHORT TERM THREAD, so I expect short term values and views