We're forging ahead with the solar heat for the shop. Today the polyiso insulation board was sprayed a nice flat black. This insulation board would be seen as a shiny aluminum surface between the black copper risers/fins if not coated.
The next order of business will be the custom bent stainless steel drip/flashing strips to mount the Sun-tuff clear covering. After that the polyiso board then copper riser/fin.
Hopefully all before the weather turns.
Randen