What is loose fill insulation?

Loose fill insulation refers to a type of insulation material that is typically composed of small particles or fibers that can be blown or poured into spaces, such as attics, walls, or other cavities. This method allows the insulation to fill in gaps and voids, providing excellent thermal resistance and reducing air infiltration.

The materials used for loose fill insulation can vary and may include cellulose, fiberglass, or mineral wool. The ability to blow the insulation into areas ensures that it conforms to the shape of the space, which enhances its effectiveness in preventing heat loss or gain. This is particularly important in hard-to-reach areas where traditional batts or rolls of insulation might not fit properly.

Other types of insulation, such as rigid or board insulation and spray insulation, serve different purposes and have distinct installation methods. Rigid insulation is pre-cut into panels and does not offer the same flexibility in application as loose fill. Solid board insulation provides thermal resistance but lacks the air-sealing capabilities that loose fill offers. Spray insulation, while also providing good sealing properties, differs in its application process and material composition, focusing on creating an airtight barrier rather than filling gaps in loose form.