Spray polyurethane foam is an insulator that is sprayed on the interior parts of a building (e.g., walls, roofs, and floors); it acts as an air barrier that prevents thermal leaks. Spray polyurethane foam is produced by two liquid components, polyol blend and MDI, which are mixed under pressure and sprayed onto a wall cavity or roof. Usage of spray polyurethane foam reduces the overall maintenance cost, extends the life span of a building and allows flexibility of building design. The spray ... Read more