
SANCTUARY® Blow-In or Spray-Applied Insulation
The all-in-one cellulose insulation that can be blow-in, spray-applied, or dense-packed. Made with 85% recycled materials.
Applications
Certifications
Product Features
Description
SANCTUARY by Greenfiber is the all-in-one cellulose insulation that can be blow-in, spray-applied, or dense-packed. It can be easily installed over existing insulation and unlike batt or roll alternatives, it’s engineered to fill every gap, void, and hard-to-reach space, forming a dense barrier that reduces air infiltration to boost thermal performance and reduce sound. Made with 85% recycled materials, free from harmful additives, SANCTUARY supports better living and a greener planet while meeting modern building codes and delivering lasting value for your home.
Specifications
| Bag Size | 25 lbs |
|---|---|
| R-Value per Inch | 3.7 |
| Coverage at R-30 | 27.4 sq. ft. per bag |
| Insulation Type | Cellulose |
| Density (settled) | 1.5 pcf |
| Thermal Resistance | 3.7 R/in. (at 4 in. thickness) |
| Flame Spread | 5 |
| Smoke Developed | 5 |
| Critical Radiant Flux | ≥ 0.12 w/cm² |
| Smoldering Combustion | ≤ 15.0% |
| Moisture Absorption | Acceptable |
| Corrosiveness | Acceptable |
| Fungi Resistance | Acceptable |
| Odor Emission | Acceptable |
| Installation Methods | Blow-in, Spray-Applied, Dense-Pack |
Ready to Order?
Contact our team for contractor pricing, bulk orders, and delivery options.