Home insulation is a material used to reduce heat transfer between the inside and outside of a building. It helps keep homes warm in the winter and cool in the summer, improving energy efficiency and comfort. Common types of insulation include fiberglass, foam, and cellulose, each with different properties and applications. Proper insulation can lower energy bills by reducing the need for heating and cooling systems. It also contributes to a quieter indoor environment by minimizing noise from outside. Installing insulation in walls, attics, and floors is essential for maintaining a comfortable living space and enhancing overall home value.