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FiberFill Insulation
FiberFill cellulosic natural insulation is a high performance thermal and acoustic insulator with a thermal value of R3.7 per inch and is available in 11.3 kg (25 lb) compressed bags (86% reclaimed natural fiber plus 14% flame retardant). It has a uniform beige color, is odorless, non-toxic, free from VOCs and is made entirely from cellulose fibers sourced from FSC-certified wood chips.
Designed for seamless, gap-free insulation, its interlocking wood fibers ensure stability with a blow in density 2.99 lb/ft³ in walls, and 1.5 – 1.9 lb/ft³ for attics, ceilings and floors, minimizing settling.
FiberFill is ideal for new and existing buildings, offering superior resistance to mold, corrosion, and fire. Unlike shredded recycled paper insulation, its micro fibrillated fibers interlock tightly during installation— whether by hand or with a shredder-blower—ensuring minimal settling.

FiberFill Pricing
FiberFill Attic @ 1.52lbs/cuft $0.55 per lb
FiberFill Walls @ 2.99lbs/cuft $0.55 per lb
FiberFill Floors and Ceilings @ 1.87lbs/cuft $0.55 per lb

Why FiberFill:
Dimensionally Stable & Moisture-Regulating The FiberFill insulation manufacturing process ensures a dimensionally stable and homogeneous product, allowing it to fill cavities between studs seamlessly without gaps. Its hygroscopic properties enable it to adsorb and release moisture while maintaining its insulating performance, helping to regulate indoor humidity levels naturally.



NO VOC's. NO TOXINS.
Formulated for fire, fungi, and corrosion resistance, ensuring a safe and eco-friendly insulation solution.
Dimensionally Stable
A dimensionally stable and homogeneous product, allowing it to fill cavities between studs seamlessly without gaps. Adsorb and release moisture while maintaining its insulating performance, helping to regulate indoor humidity levels naturally.
Accoustic PERFORMANCE
FiberFill offers exceptional soundproofing in accordance with ASTM C423 standards with an NRC and SAA rating exceeding 0.75.
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