Cellulose insulation offers an environmentally responsible insulation solution composed primarily of recycled paper products (typically 80-85% post-consumer newspaper) treated with non-toxic borate compounds for fire resistance and pest deterrence. Professional installation uses specialized blowing equipment to achieve proper density and complete cavity filling, with techniques including dense-packing for walls (providing both thermal and sound insulation) and loose application for attics where its excellent conformity to irregular spaces prevents gaps and voids. This material excels at limiting air movement within wall cavities while its density helps reduce sound transmission between rooms or from outside sources, making it particularly valuable in urban environments or multi-family buildings. With an R-value of approximately 3.5 per inch and superior performance in extreme temperatures compared to fiberglass, cellulose provides excellent thermal efficiency while its recycled content significantly reduces embodied carbon compared to synthetic insulation materials. The installation process is minimally disruptive, with existing walls treated through small access holes that are sealed after completion, while attic applications can be installed over existing insulation to reach optimal R-values.
Log in with Google