Dyer insulations was recently recognized by International Cellulose Corporation for installing over 15 Million Square Feet of K-13 and SonaSpray “FC” Products. In1970 Dyer Insulations became the Northeast (Maine to Virginia) Installer for National Cellulose Corporation, the first installer to utilize the K-13 line of products. Today, Dyer Insulations continues to be the leader in the application of K-13 acoustical and thermal insulation.