So I was half done building my new room A change of plans means I have no choice but to move to garage. I would welcome any suggestions, I'd like to make a few mistakes as possible. Temps vary from teens to 100 F. I am planning on 2 8x10 rooms, one flowering and one vegging. The vegging will double as storage area for a few household items. My plan is to build standard 2x4 studded walls with 1/2 inch mdf on each side. I'd like to find adequate insulation for $20 or so per 4x8 section of wall. Not sure what to use I need the vegging area to stay around 70 degrees. Eventually I'll put in a mini split but need to use window shaker for now. Plan on cooling the veg and pulling air out of flower area when need to bring temp down.