Cellulose: The Perfect Insulation
Cost-effective, versatile, and green, cellulose may be the hardest-working insulation available.
Synopsis: In this article, Michael Maines gives an in-depth look at cellulose insulation. He describes the paper material and boron compounds that make up cellulose insulation, and gives information about the R-values, fire resistance, water resistance, mold and fungus resistance, sound control capabilities, and positive environmental impact of cellulose insulation. Maines also describes the three common methods of installing cellulose: loose-fill, dense-pack, and damp-spray. The article includes an estimate of the cost of each type of installation per sq. ft. along with drawings of each type of assembly, and includes air-sealing and setup tips to remember during installation.
No other insulation takes less energy to produce, uses more recycled content, or is less toxic to humans than cellulose. It has respectable R-values, resists air movement, absorbs sound, and is highly resistant to fire, pests, and moisture. No insulation is perfect for every situation, but my first choice whenever it will…