Need some advice on my attic setup please. I've been growing in my wardrobe, but got to the stage where they are too big so i need to move em into my private attic. I've been growing in hydro, under 3 x 15w fluorescents & 3 x 60w incandescents. (see attached pics). Thing is, I need to build some kind of enclosure, cause the attic floor is covered with fiberglass insulation and I dont wanna be smokin glass fibers (cough)! The attic is small, 4foot tall at the apex, by 4 foot wide, by 2foot deep. I wanna use a 500w MH, but the heat coming off is serious, and I'm worried about the felt on the roof melting or burnin. I gotz an industrial centifugal fan (seriously high flow rate) to take air from outside into the enclosure. Oh and btw its winter so not very warm up there. Also got a 300w MH, would this be better than the 500w to grow/manage in this small space? So I was thinkin I'd build wooden walls, enclose the whole thing, roof included. I wanna keep the plants small, cos the head room isnt great. Any advice or alternatives would be great.