Cellulose insulation is made from recycled newspaper that is treated with the safe fire-retardant boric acid. We strongly prefer blown-in cellulose over fibreglass primarily because of its superior thermal performance.demo The higher density of cellulose insulation minimizes air and draft infiltration in walls and attics, thereby maintaining the required R-value of the insulation even at very cold temperatures. The boric acid used as a fire-retardant also deters vermin such as mice, squirrels, and raccoons, and will not allow the material to become mouldy if it becomes wet or damp.
![Cellulose Insulation being blown into attic to R-50.](https://aboveall.net/insulation/wp-content/uploads/sites/2/2017/02/Above_All_Insulation_cellulose_installer-1024x576.jpg)
Further information about the cellulose we use is available from the web site of our manufacturer – North Star Fibre in Morden, MB