CleanFiber makes building insulation products from recycled corrugated cardboard boxes.
CleanFiber
Cellulose Insulation
Carbon negative cellulose insulation for attics, walls, and floors
Description
CleanFiber’s Cellulose Insulation is designed for attics, walls, and floors in residential or commercial new construction and retrofit applications. The dense cellulose stops airflow and fills cavities tightly, reducing heat leaks and HVAC runtime. It supports envelope upgrades and improves overall thermal performance. By eliminating drafts, the insulation helps occupants experience more stable temperatures and improved comfort.
Use Cases
Reduce building energy/utility costs
Upgrade your building envelope
Insulate your building/unit
Regulate indoor temperature
Cost Savings
Customers report saving time and money when accounting for equipment clogging and dust issues during operations and maintenance.
Key Differentiators
Safer, healthier materials - CleanFiber's Cellulose Insulation uses a patented wet/liquid process embedding fire retardant into fibers. It has lower free-chemical loadings than dry-process alternatives, and is less corrosive and avoids ammonia odors or moisture-related corrosion issues.
Better for the planet - The insulation is made from recycled corrugated cardboard and supports lower embodied carbon in low-carbon building assemblies.
Cleaner, smoother installation - It offers cleaner, more uniform fibers improving flowability and coverage, smooth installation with fewer clogs and delays, and low dust and contamination during installation.
Flexible install options - It is compatible with multiple installation methods (dense-pack, loose-fill, wet-spray).
Proven performance - It provides strong thermal insulation (supports indoor temperature regulation) and improves acoustic performance compared to fiberglass.
Cost-effective - It is competitively priced relative to blended or conventional cellulose insulation.
About
Decarbonization Impacts
Operational Emissions
Reduces building carbon both by improving energy efficiency through better insulation and air control, and by using recycled, biogenic feedstock that stores carbon.
Enables substantial embodied-carbon savings when paired with low-carbon structural systems.
Embodied Carbon
The insulation is carbon negative and acts as a carbon sink by storing natural carbon in buildings.
Project + Building Compatibility
Project Type
Both existing building retrofits and new construction
Essential Building Characteristics
For use in attics, walls, and floors.
Other Screening Criteria
Works in residential and commercial projects, including stick-built and panelized construction.
Example Installations
Installed By
Home Performance Professionals of Western New York, Dolphin Insulation (MA), Rocket Insulation (NY), Halco, and multiple large modular homebuilders
Case Studies
Installers praise CleanFiber for low dust, superior flowability and reliable machine feeding, which yields cleaner, faster installs, fewer clogs, and improved occupant comfort.
Operations, Management, and Maintenance
Moisture Management
The all-borate formulation is designed to prevent the chance that moisture will cause ammonia odors or corrosion issues.
Specifications
Meets or exceeds U.S. Consumer Product Safety Commission certification requirements in reference to ASTM C739 standards; evaluated under a Uniform Evaluation Service report for compliance with IBC, IRC, and IECC provisions; ENERGY STAR sheet is available.
