i hear tin foil is back for the inside of your box bc of burning, would reflextic insulation do anytrhing negative to my plant? if so what wont that i can pick up at a local home depot
tin foil causes uneven reflection and may/will cause burn spots to your plant...mylar is one of the best ways to go about it...Im not too sure abut that other stuff though...
yeah you could use sisalation although you might find it holds to much heat in your room nuthin fans cant fix though flat white is the most reflective surface so i suggest a couple of cheap tins of paint.