What characteristic defines shredded-fiberglass insulation?

The defining characteristic of shredded-fiberglass insulation is its form and composition as blown insulation. This type of insulation is typically made from fiberglass fibers that are shredded and processed to create a loose-fill material. It is commonly recognized by its light and airy texture, allowing it to conform to various spaces and fill gaps in walls, attics, and other areas.

While it is often white in color, this is not the sole defining trait, as other factors, including its composition and application, play significant roles in how it functions as insulation. The ability to be blown into spaces aids in achieving a higher R-value, which measures thermal resistance, making it a popular choice for energy efficiency.

Other types of insulation mentioned, such as dense foam insulation, natural fiber insulation, or electrical insulation, reflect different materials and applications that do not align with the properties of shredded-fiberglass insulation. Therefore, the identification as blown insulation is crucial in understanding its practical use in construction and energy efficiency.