Quote Originally Posted by should
Thanks for the thread rusty, ill have to try some of those techniques... its sad looking at the thermometer and seeing high 90s
My pleasure.
Keep in mind, I do not recommend anyone purposely raise the temps in their growroom to these extremes. These are methods to help keep temps reasonable enough to get quality results from a very harsh enviornment. :thumbsup:

Quote Originally Posted by lunarose
Rusty,
I have the same problem this time of year in my greenhouse. I have been reading about smartpots and think I'll probably give them a try next year since they are suppose to help keep the roots cooler..
Would put some more thought into the SmartPots. Thoughts like...how does the pot cool the water, or at the very least, not retain ambient heat? The water will act like an insulator, collecting external heat. Or at the very least, not let the heat escape. Also, cannabis doesn't much like being fed from the bottom. At least mine didn't. (no fresh water to upper root zones, and conditions that virtually guarantee root rot in the lower root zones)
Quote Originally Posted by lunarose
Another tactic that has worked for me is to cut a piece of that weed blocker fabric with a hole in the middle for your plant and then cover it with a layer of straight perlite.
I'm a bit doubtful the cloth and perlite are necessary, but...If it works, stick with it. A fan blowing across the pots will circulate air and should cool the roots just fine. (unless your greenhouse is sitting in the middle of an asphalt parking lot, lol)