I am attaching a drawing of my idea which should be easier to vision.
The Black Outline is of course the Greenhouse which will be 8-ft by 12-ft.
The Blue Outline would be the needed frame work to support the “Wire Slide Canopy”. This I would fabricate out of aluminum tube and TIG weld together. The “Slide Wire” would be stainless steel.
The Red Outline would be the special sun blocking / waterproof fabric and all the hardware would be either brass or stainless. The holes in the Canopy serve two purposes, 1) they allow wind to go through to resist strong gust and 2) they also would allow water to drain through to prevent build up.
The Canopy itself can be pulled back to a “folded’ position to allow sun on to the Greenhouse or it can be easily removed for cleaning and storage during the winter. The Canopy would be 14-ft by 18-ft allowing a full 3-ft overhang of the Greenhouse all around.
Open to any and all helpful suggestions.
Thomas
click on the photo to enlarge