Foam insulation may be the Cadillac of home insulation techniques and it is becoming very popular, very fast. In residential and commercial properties, expanded polystyrene can be used as insulation sheets for walls, ceilings and roofs. It works towards enhancing the users to stabilize the internal temperature. About Spray Foam Insulation Kits For Take Action Yourself InsulationSpray Foam Insulation kits are portable units that offer spray foam insulation, but are made for small jobs or where traditional foam applications cannot reach.
* R25 - R30 for floors. One of the http://ornl.gov/sci/roofs+walls/insulation/ins_01.h