I'm new also to indoor growing.your not thinking about using the reflective foil roll stuff.basically make your space interior just like tent interior.it's cheap. unless your talking commercial grow then check it out.I'm gonna run a 3 room set-up.one room is babies and mother plants.6x8 room.then I have a 6x6 veg room and a 6x8 flower room.but I'm gonna run the foil roll up the wall at least 48in.comes in 24 in roll.