step one...

1.  Make sure the heavier gauge metal is going to conform to the radius OK....check

2.  Figure out how to get all the metal up there without killing myself...yet to be determined

The plan is that three quarters of the roof surface will be covered with corregated metal roofing for shade.  I am starting with 10' panels on the low end south side first.  One quarter (from the center going 12' to the south) will be transparent polycarbonate to let the low winter sun in while all the metal will cut it in half during the high summer months.  The plan is always subject to change.  We shall see....