The Icynene Insulation System is a soft, flexible spray foam insulation that gives up to 50% greater energy savings when compared to conventional insulations. When sprayed in place Icynene expands completely filling all cavities and voids creating a sealed building envelope which eliminates air leakage/infiltration. Air leakage/infiltration accounts for up to 50% of heat loss from a building. Unlike other bio based and urethane foams, Icynene is 100% water blown and therefore contains no harmful agents, volatile organic chemicals, HCFCs, HFAs, HFCs or formaldehyde.