Shake and rake insulation, also known as loose-fill insulation, is installed by agitating and evenly distributing the material using a “shake and rake” motion. This method is typically used in attics and other hard-to-reach areas. The material can be composed of various materials, including cellulose, fiberglass, and rock wool, and it provides excellent thermal and sound insulation. Loose-fill insulation can be installed quickly and easily, making it a cost-effective option for many applications.