What is the difference between blown-in fiberglass insulation and other types of insulation?

Blown-in fiberglass insulation differs from other insulation types like batts or foam in its installation method and form. It’s a loose-fill insulation blown into place with specialized equipment which allows it to fill cracks and crevices more completely, reducing air leaks. Other insulations may not be as adaptable to irregular spaces or may require more intrusive installation processes.