turbo:
so you've smoked in the attic and the smell went away. fine and good. i'm assuming no one was downstairs at the time. growing marijuana, especially when you approach harvesting time, is a smelly business. the odor is pungent and noticeable. it sounds like you either live with your parents or in some kind of apartment. if it's the first, what will you do when they ask you what that smell is or the figure it is coming from the attic and simply go up and look. i'm not trying to rain on your parade -- but you need to think this thing through.