Spray foam insulation is a versatile and highly effective insulation material that is applied as a liquid and expands into a foam to fill gaps, cracks, and cavities in walls, ceilings, and floors. Composed of two main components, isocyanate and polyol resin, which are mixed on-site during application, spray foam insulation forms an airtight and seamless barrier that provides superior thermal resistance and air sealing properties. This type of insulation comes in two main varieties: open-cell and closed-cell, each offering unique benefits in terms of insulation performance and moisture resistance. Spray foam insulation is prized for its ability to provide high R-values, reduce energy costs, and enhance indoor comfort by preventing air infiltration and heat loss. Its versatility and ability to conform to irregular shapes make it suitable for a wide range of applications in both new construction and retrofit projects, making it a popular choice for builders and homeowners alike.