Quote Originally Posted by santacruz_organic
If you can just paint you floor flat white. white is 99% reflective and it isnt going to rip or get messy. if you cant paint it either go with faithlessxxx's opinion or use white linnolium(like the stuff in your bathrooms - you can get it in rolls) or other heavy duty sheating.
99% aye? I dont think so buddy. Mylar, the most reflective stuff you can get is only 98%.

Flat white is alot lower, but still good. It's definatly better than nothing, but not 99% reflective.