Professional Cellulose for Cellulose Professionals
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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. 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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