Spray Foam Insulation is a type of insulation made from a mixture of chemicals that expand when sprayed. This expanding foam fills gaps and cracks in walls, roofs, and floors, creating an airtight seal. It helps improve energy efficiency by reducing heat loss in winter and keeping homes cooler in summer. There are two main types of spray foam: open-cell and closed-cell. Open-cell foam is lighter and more flexible, while closed-cell foam is denser and provides a higher R-value, which measures insulation effectiveness. Both types help reduce noise and improve indoor air quality by minimizing air leaks.