What is the process of insulation?

Insulation is the process of reducing heat transfer between objects or environments by using materials with low thermal conductivity. This involves selecting appropriate insulating materials, such as fiberglass, foam, or cellulose, and installing them in walls, attics, and floors to create a barrier against heat loss in the winter and heat gain in the summer. Proper insulation improves energy efficiency, enhances comfort, and can lower heating and cooling costs. The effectiveness of insulation is often measured by its R-value, which indicates its resistance to heat flow.