Originally Posted by EastCoastCB
Flat white is the most reflective. that's why so many indoor pot growers use it.
Yep he's right.
I used the aluminized roof paint not just for the little bit of reflectivity but also because it will cork up any pinhole leaks or small cracks in the sheet metal and at the seams. It has succesfully stopped the last of the leaks in my ceiling. Also the stuff I used has aluminum fibers in the paint and thats why it reflects heat so well. Any aluminium colored paint without the fibers will be pretty much useless except for being aluminium colored...