hey everyone, I wanted to go to a nursery today and buy professional shade cloth for my greenhouse since it has gotten really hot here the past couple of days, my dad however wanted to not drive to the nursery and pay 10 bucks more, so instead we went to the K-mart in the mall and tried to find something that would work, my dad thought that the weed fabric would work nicely, so I decided to buy some. It is plastic fabric that is black. Do you think this will work, I hope it will, I am only looking to transfer 50 -70% of the light into the greenhouse, this stuff it pretty thin, so I think it should work, what do you think?