INS541LD Blended Blow-In Insulation
- Bag Size: 19 lbs.
- R-Value: R13 to R60
- Coverage: 40 sq. ft. per bag at R19

Ideal for attic blow-in installations. Creates a thermal blanket that fills gaps and voids to reduce air infiltration; keeping your home warm in the winter and cool in the summer. Can be applied over existing insulation or in new construction. Provides superior reduction of noise transfer through floors and walls when dense packed in to attics and sidewalls. Meets US Department of Energy's (DOE) recommendations for reducing energy costs. Fire-resistant treated insulation is made with up to 85% recycled material that meets Class 1 Fire Rating to protect your home; giving you more time to evacuate. Low dust, no itch formula requires no cutting tools; allowing for simple installation in just 3 steps: 1) assemble machine 2) place machine on flat, dry surface 3) point and blow-in.
- Coverage Area (Sq. Feet): 40
- Package Weight (lbs): 19.05
- ENERGY STAR Certified
- Formaldehyde Free
- Limited Lifetime Warranty
- R-Value per Inch: 3.7
- Maximum R-Value: 60
- Insulation Type: Cellulose
- Fits 2 x 4 Walls
- Fits 2 x 6 Walls
- For Use in Attics
- For Use in Ceilings
- For Use in Crawlspaces
- For Use in Walls
- Sound Barrier
Technical Documents
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DIY Attic Installation Guide
1.32 MB | PDF
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Homeowner FAQ
389.6 KB | PDF
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Limited Lifetime Warranty
151.57 KB | PDF
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Contractor Retrofitting Sidewall Installation Guide
1.46 MB | PDF
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Retrofit Your Home with Greenfiber Insulation
519.95 KB | PDF
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Greenfiber Homeowner Guide - Planning & Instructions
3.2 MB | PDF
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INS541LD Fact Sheet
1.07 MB | PDF
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INS541LD Attic Card
1.32 MB | PDF