Fomo is embracing a new method to insulation called “hybrid insulation,” which combines the air-sealing qualities of closed-cell polyurethane foam with the high R-value benefits of traditional fiber glass or cellulose insulation. The hybrid method consists of spraying one “flash” of foam (usually 1 to 2 inches) and then covering it with a batt of insulation. By incorporating two methods of insulation, builders can offer the best of both worlds at a better cost. It can be too expensive to “full foam” a structure with spray foam insulation. This way, builders can offer the energy efficiency, air barrier, and mold prevention benefits of spray foam without the high price tag.