Blown in cellulose insulation provides OPTIMUM R-Value. What is R-Value? An R-value indicates an insulation’s resistance to heat flow. The higher the R-value, the greater the insulating effectiveness. Our product covers all the voids plus helps control Insects. Blown in cellulose insulation with Boric Acid is applied by a Technician who is a certified commercial Peesticide Applicator.Boric acid, also called hydrogen borate or boracic acid or orthoboric acid or acidum boricum, is a weak acid of boron often used as an antiseptic, insecticide, flame retardant, as a neutron absorber, and as a precursor of other chemical compounds. It exists in the form of colorless crystals or a white powder and dissolves in water. It has the chemical formula H3BO3, sometimes written B(OH)3. When occurring as a mineral, it is called sassolite. Please visit https://www.natureswaypestcontrol.com/insulation-attic-clean-outs/ for more information.