CertaPro AcoustaTherm Batts are designed to enhance acoustical and thermal performance in exterior and interior walls, and improve sound transmission loss over suspended ceilings. The product improves acoustical properties in partition or exterior walls contributing to a quieter interior environment. It also provides excellent thermal performance, thus saving energy. The lightweight product is easy to cut, install and will not settle or sag. The product resists bacteria, fungal growth and will not rot or deteriorate