What is another commonly used material for loose fill insulation?

Perlite is a commonly used material for loose fill insulation due to its excellent thermal properties and lightweight nature. It is formed from volcanic glass that expands when heated, resulting in a highly effective insulating material that provides good resistance to heat transfer. Perlite is non-combustible and has a low thermal conductivity, making it suitable for various insulation applications, including attics and wall cavities.

The lightweight characteristic of perlite also allows for easy handling and installation, which further adds to its popularity in the construction industry. Its resistance to moisture and vermin also makes it a durable choice, ensuring long-lasting insulation performance.

Other materials mentioned, while they may have insulation properties, do not match the specific benefits of perlite for loose fill applications.