Too Hot in Greenhouse
I have a 10 x 12 GH that gets VERY hot. I can vent it but that just doesn't seem to help. I am not sure that my polycarb is ( thinkness/value ).
My question is: Can I cover a portion of the GH with a tarp to help shade some of the sunlight and prevent it from getting so hot. If I shaded the top, would light coming in from the sides be enought to keep plants growing?