Could I line the walls with aluminium foil my grow house is inside a 6foot locker not really to practical to paint the inside
Do not use aluminum foil.... For one, it is less reflective...fairly poor actually. Also, it refuses to lay perfectly flat, causing your reflected light to be uneven. This leads to hot spots where more reflected light is directed to one area. These hot spots can burn your plants... If you have to line your area, use mylar or panda film...
Thanks a lot bro....lol word I think I'm gonna with the mylar or panda film....but how does the cpu paper work in a humid house cause I could use paper for my seedlings house to save some money until I get a more perminent location.