Which of the following materials is generally NOT recommended for insulation in high-moisture areas?

In high-moisture areas, such as basements or bathrooms, the choice of insulation materials is crucial to prevent moisture-related issues like mold and rot. Straw, while an organic and renewable material, is generally not recommended for insulation in these environments. It is highly susceptible to moisture absorption, which can lead to degradation and mold growth. This makes it unsuitable for placements in areas where high humidity or direct moisture exposure is common.

On the other hand, fiberglass, spray foam, and mineral wool are typically more suitable for high-moisture applications. Fiberglass is non-absorbent to moisture when properly installed and can help to maintain a dry environment. Spray foam creates an airtight seal that can prevent moisture infiltration, and mineral wool is resistant to both moisture and mold growth, making these options reliable choices for insulation in damp conditions.