HandiFoam® E84 Class 1(A) low-pressure spray polyurethane foam is a two-component system designed to fill and insulate large voids and surfaces. HandiFoam® E84's excellent adhesion properties create a continuous air barrier. This quality completes the building envelope, resulting in improved indoor air quality and lower heating and cooling costs. HandiFoam® E84 is a Class 1(A) fire rated foam that meets various building code requirements for insulation. Properly applied HandiFoam® E84 reduces energy consumption, leading many homes or buildings to be certified in their respective energy designation.