Quote Originally Posted by davidhseo
Remember, I cannot run any exhaust or intake fans with my setup due to noise restrictions and budget.
Dude, you could live in the South Pole, but if you don't exchange the air in your grow room, the temperatures will soar until it's like a very nice crispy oven.
As to intake fans, I see your noise situation, but if you don't give those plants fresh air, they're going to be strapped for life. You need FRESH air... even if it's a passive intake.

If you want little noise/no-noise, what you can do is buy a big mofo fan... like a Dayton 465 or something... then, run it much slower... it won't produce nearly as much noise.
Maybe you can design a passive intake/exhaust... intake: tube connected to outside on the lowest part of the attic. Exhaust, tube connected to the outside on the highest part of the attic. Still, I think you should get a fan.

Best,

-turtle420