I could be wrong. But, i belive plants all need some uv light. Also , screen that blocks out 90 % of heat ? No way, there would be no lite at all. Heat, is still going to be there.
Use your better judgement !
I'm guessing the screen is to dence.
Hears my ideal.
Shade cloth, or screen on top and three sides. Face, open side east, so veges get, direct moring sun, untill about noon.
Get the ideal ?
And ! When, weather cools down in winter. I don't belive, any shade will be needed, at all. 😁