HandiFoam® E84 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 which completes the building envelope, resulting in improved indoor air quality and lower heating and cooling costs. When properly applied, HandiFoam® E84 reduces energy consumption, leading many homes or buildings to be certified in their respective energy designation.