Home insulation refers to the use of materials to prevent the transfer of heat between the interior and exterior of a house. By installing insulation in walls, attics, and floors, homeowners can increase the energy efficiency of their homes and reduce heating and cooling costs. Effective insulation can also help to keep homes more comfortable by maintaining a consistent temperature throughout the year. There are many different types of insulation available, including fiberglass, spray foam, and cellulose, and choosing the right one depends on factors such as climate, budget, and the specific needs of the home.