Which of the following is a characteristic of batts made from cotton?

Batts made from cotton are recognized as eco-friendly insulation because they are often sourced from recycled cotton materials, such as denim fabric. This characteristic appeals to environmentally conscious consumers looking for sustainable building materials. Unlike traditional insulation products that may utilize fiberglass or petrochemical-derived components, cotton batts minimize environmental impact both in their production and in their disposal, contributing to a healthier home environment.

The other options do not accurately describe cotton batts. For instance, while they can absorb moisture, it is not a primary characteristic that defines their insulation effectiveness. Cotton requires proper treatment to resist mold and mildew; thus, it’s not well-suited to environments where high moisture is a concern. Additionally, cotton batts are not typically classified as high density when compared to other materials like mineral wool or fiberglass. Finally, they are not rigid; cotton insulation usually comes in flexible bat form, making it easier to install in various spaces and cavities. Therefore, the defining trait of cotton batts being eco-friendly distinguishes them from other insulation materials.