One of the most popular attic insulating materials is fiberglass. Installing rolls or batts is simple. Fiberglass insulators resist heat while retaining their shape. Homeowners can save money on rolls or batts with or without vapor barriers.
Recycled newspaper treated with fire retardants is another popular insulating material. Cellulose is blown into the attic to seal gaps. It is eco-friendly and soundproof. It also offers the highest R-value per inch of loose-fill insulator material.
Spray foam expands as it dries, sealing and insulating hard-to-reach locations. Spray foam insulator is the most expensive since professionals apply them with special equipment. Spray foam insulation's high R-value, air and water barrier, and coastal suitability make it worth the investment.
Using radiant barrier insulating material is a hot climate attic insulation option. This insulating material is laid under the roof to reflect solar heat and cool the attic. It lowers heat gain, making cooling your home easier in warmer weather. Radiant barriers are utilized alongside regular insulating materials, but they act differently.