What is cellulose insulation primarily made from?

Cellulose insulation is primarily made from treated newspaper, which has been recycled and processed to create an effective insulating material. This process involves shredding the paper and then treating it with fire retardants to enhance its safety and effectiveness. The use of recycled paper not only makes cellulose insulation an environmentally friendly option, but it also provides excellent thermal resistance, making it a popular choice for insulation in homes and buildings.

The other options do not accurately represent the primary component of cellulose insulation. Recycled cardboard and pine wood shavings can be used in various products and applications but are not the main ingredient in cellulose insulation. Plastic fibers are a separate type of insulation material entirely and do not have the same properties or benefits as cellulose.