Reflective insulation is a type of insulation that uses reflective materials, such as aluminum foil, to reduce heat transfer. It works by reflecting radiant heat away from living spaces, making it effective in hot climates. This insulation is often installed in attics, walls, and roofs to improve energy efficiency and maintain comfortable indoor temperatures. Unlike traditional insulation, which primarily slows down conductive heat flow, reflective insulation focuses on radiant heat. It is commonly used in residential and commercial buildings, and can be combined with other insulation types for enhanced performance. Proper installation is crucial for maximizing its benefits.