This is one I’ve been doing on the boats to keep trash and pissy kitties out the boat.
Finally got my neighbor talked into it.
It doesn’t hold heat in or promote mildew growth by letting the boat breath and provide some shade.
No real supports needed. Harbor Freight started carrying the material already grommeted in 12 x 20 squares.
Negative aspects are if under pine trees, the needles get stuck in the material and it will let dust, dirt and pollen thru also. *
It's somewhere between 60% & 70% shadecloth.
