Our little greenhouse is getting very hot already, even with door open, roof vents, and fan running. As of now we have about 25 flats of annuals and vegetables in there. With our wind, shade cloth on the outside is not an option. So I'm going to order the more open non-reflective type of cloth and affix it to the inside. Also we would like to have some container vegetables in there this summer and fall. I know "leave the containers outside until it gets cold" but again with our wind, even a twenty gallon pot will dry out quickly. Have tried it in the past. Also have ordered a couple of grow boxes hoping that will help. Question percentage of shade cloth 30 40 or 50 ? Thank you in advance.

Mike