Will cellulose insulation burn?
No. Nu-Wool Premium Cellulose Insulation has a UL Class 1 fire rating. For more detailed information see: http://www.nuwool.com/homeowners/fire-resistant
Is this sheep’s wool? (referring to Nu-wool Cellulose insulation)
No. Cellulose is “green.” It’s made of 80% post-consumer recycled newsprint. The fiber is chemically treated with non-toxic borate compounds to resist fire, insects and mold.
Will it settle?
All loose-fill insulation products can settle over time. By federal law and industry standards compensation for settlement is built into cellulose insulation coverage charts. When installed properly by Valley Insulation’s trained installers in accordance with the coverage chart, loose-fill cellulose insulation will not settle below the intended R-Value. When Nu-Wool Premium Cellulose Insulation is properly installed in wall cavities to a density of 3.0 to 3.5 pounds per cubic foot using the Nu-Wool WALLSEAL System, it adheres to the studs, plates and sheathing, and will not settle. (Referenced from Nu-Wool.com)
Is this the same stuff they used back in the 70’s?
Same idea, different process. The installation process is different.
Since it is newspaper will it mold if it gets damp or wet?
The Nu-Wool cellulose insulation is treated with with a boron-based, EPA Registered Fungicide, which makes the insulation resistant to mold. Under federal law, claims of mold resistance can only be made by products that contain a fungicide registered with the EPA for use in that product. Virtually no other insulation products contain such additives. (referenced from the Nuwool.com website)
Do you blow in fiberglass in attics?
Yes, but we try not to because it is more expensive , air blows through it, and you need more of it to achieve the same R-value.
Can you insulate brick or block houses?
No, we need a 3 1/2 “ cavity to blow our cellulose in.