Icynene–Lapolla has introduced its Lapolla FOAM-LOK 450 Spray Polyurethane Foam Insulation. An open-cell solution for attics and cavity walls, over metal and other critical insulation areas, FOAM-LOK 450 eliminates air infiltration. The installed costs in many circumstances are cost-competitive with traditional insulations and can potentially offer a return on investment through reduced energy consumption. Additional product benefits include noise attenuation, durability and moisture control. The product adheres to framing members and substrates and can be used to fill stud-wall construction in a single application. Additionally, it conforms to the AC 377 End Use Configuration Criteria, meeting building-code requirements for use with no additional ignition barrier required.