Established in 1949, Nu-Wool Co., LLC manufactures environmentally friendly cellulose insulation materials. With a recycled content of 86%, Nu-Wool Premium Cellulose Insulation is a superior product designed for use in walls, attics and floors of new and existing residential and commercial structures. The performance of our products is backed by our industry-leading 10-year Energy Guarantee on new homes insulated with Nu-Wool.  When it comes to choosing insulation, Nu-Wool Premium Cellulose Insulation is not only the GREEN choice, but also the superior choice.