Quote Originally Posted by userfriendly View Post
Polyethalyne foam insulation (spelling?). Comes in single sided aluminum and double side aluminum. Double side more effective. 10mm should be sufficent. Lagay mo sa roof/yero not ceiling. Fire resistant material ito. Dont use fiberglass insulation, sobrang kati.

Easily found in MC Home Depot. Price is around P70/square meter.
OOh. Cool! I'll try it! Another occasion for the use of my friendly spare electric meter!