Apart from insulation the polyurethane foam also acts as a sound barrier
. It is moisture resistant and hence prevents mold in the wall cavities and wall surfaces. The excellent insulation capacity of the foam results in the complete cut-off of air transfer from and into the house. Retention of temperature of the house is excellent in homes insulated using polyurethane foam insulation kits. You will save a ton of money in utility bills and the insulation costs will soon paid for.