Use positive pressure, build a box for the plants (big box) seal it up, feed it air from the house below, make sure you have a 2:1 ratio of intake to exhaust, of course insulate it; all you need to worry about after that is radiant heat from the roof and siding.
4x5 Reviewed by 4x5 on . New to attic growing....... input?? I've never tried to do any growing in a attic space, anyone on here have input?? Problems I might run into?? I have a unused 15'x15' space with 5' hight. I'm going to lay plywood down over the rafters, insulate the roof and drywall it. Basically turn it into a room. Is the drywall necessary? Or is something else better? Planing on painting everything white, whats the best paint? I'm thinking heat might be a problem, so I will be putting vents in the roof. I think I'm just going to do Rating: 5