National Fiber's Cel-Pak Cellulose Insulation is a smart choice to insulate your home.

We make Cel-Pak Cellulose Insulation using over-issue newsprint (daily newspapers that went unpurchased), paper drive paper, and other high-quality recycled paper, all refined to cellulose fiber. Unlike other manufacturers, we hand sort our paper to remove glossy inserts like ads and coupons, twine, metal - anything that isn't good, clean, uncoated paper stock, making Cel-Pak the cleanest cellulose insulation you can buy.

Along the way, a natural mineral borate (never ammonium sulfate) is added to the cellulose fiber, which provides our Class A fire rating and resistance to mold and pests.

Cel-Pak is the right choice for homes, commercial structures and municipal buildings

Offering proven energy savings, an 83% recycled content and low embodied energy (the amount of energy it takes to manufacture), National Fiber's Cel-Pak is a great choice for you, your family, and the environment.

• Cel-Pak offers significant savings on your heating and cooling bills. See our Insulation Savings Calculator for more information.¹
• Cel-Pak has a recycled content of 83%. A National Resources Defense Council report² says, concerning recycled content, "The fiberglass industry averages 35% recycled glass, while the cellulose industry averages a minimum 75% recycled content." Sprayed foam insulations typically have very low, if any, recycled content.
• On embodied energy, the same NRDC report cited above concludes, in their summary of findings, "It takes more than 10 times as much energy to produce fiberglass insulation as cellulose insulation."
• We make Cel-Pak right here in New England, which means lower emissions as our insulation travels as few miles as possible before it gets to your home.

¹Savings vary. Find out why in the seller's fact sheet on R-values. Higher R-values mean greater insulating power.
² NRDC Report: Keeping Warm and Staying Healthy: A Comparative look at Fiberglass and Cellulose Insulation - Principal Author and Researcher: Anjanette DeCarlo; Project Design and Direction: Allen Hershkowitz, Ph.D.

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