@Thomas75
LOL That's why I put " cheap construction" in there - I have seen your first drawings I figured this was the case (they look amazing).
My first attempt will be cheaper of the cheap as I want to make a hoop house that I can cover for our month of cold weather. When Spring hits, I want to take the cover off and let it go for the other 10 to 11 months.
If you come up with a way to keep the place cooler than 115 in the shade in Texas ya gotta let us know.
If there was a pocket of air, of some sort, between the ground and the top layer of walkway - does anyone think that would be a good insulator to keep it cooler?