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home > Johns Manville Attic Protector R-19 Fiberglass Blown-In Insulation, Sound Barrier, 109-sq ft Coverage per 25.2-lb Bag > Johns Manville Attic Protector R-19 Fiberglass Blown-In Insulation, Sound Barrier, 109-sq ft Coverage per 25.2-lb Bag

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Johns Manville Attic Protector R-19 Fiberglass Blown-In Insulation, Sound Barrier, 109-sq ft Coverage per 25.2-lb BagR 19 Fiberglass Blown In Attic Insulation, 109 sq ft Bag Johns Manville Attic Protector is a formaldehyde free, loose fill fiberglass insulation designed for attics, ceilings, and other open cavities. Each 25. 2 lb bag delivers R 19 thermal performance with sound barrier benefits and 109 sq ft coverage, helping improve home energy efficiency and comfort. Key Features: Formaldehyde Free Fiberglass: Low emitting, GREENGUARD Gold certified loose fill for

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R-19 Fiberglass Blown-In Attic Insulation, 109-sq ft Bag

Name: Johns Manville Attic Protector R-19 Fiberglass Blown-In Insulation, Sound Barrier, 109-sq ft Coverage per 25.2-lb Bag
Brand: muk-zwingenberg.de
SKU: 14113247228
Price: 59.94 USD
Availability: InStock
Rating: 4.7578000000000005 (1768 reviews)

Johns Manville Attic Protector is a formaldehyde-free, loose-fill fiberglass insulation designed for attics, ceilings, and other open cavities. Each 25.2-lb bag delivers R-19 thermal performance with sound barrier benefits and 109-sq ft coverage, helping improve home energy efficiency and comfort.

Key Features:

Formaldehyde-Free Fiberglass: Low-emitting, GREENGUARD Gold certified loose-fill for healthier indoor air.
Easy Blown-In Installation: Use with an insulation blowing machine; can be applied over existing insulation.
Energy Efficiency Upgrade: Provides R-19 thermal performance to help reduce heating and cooling costs.
Sound Control: Sound barrier properties help dampen noise between living spaces.
Certified Performance: ENERGY STAR partner product with SCS recycled content certification and 1-year limited warranty.

Specifications Table:

Specification	Details
Series Name	Attic Protector
Insulation Type	Fiberglass
Maximum R-Value	19
R-Value per Inch	2.67
Coverage Area (Sq. Feet)	109
Package Weight (lbs.)	25.2
Bag Dimensions (L x W x D)	38-in x 9-in x 19-in
Formaldehyde Free	Yes
Sound Barrier	Yes
Vapor Retardant	No
ENERGY STAR Certified	Yes
GREENGUARD Gold Certified	Yes
SCS Recycled Content Certification	Yes
Warranty	1-year limited
For Use in Attics	Yes
For Use in Ceilings	Yes
For Use in Walls	No
For Use in Floors	No
For Use in Basements	No
For Use in Crawlspaces	No
Fits 2 x 4 Walls	No
Fits 2 x 6 Walls	No
For Use in Doors	No
For Use in Duct	No
For Use in Electrical	No
For Use in Garage Doors	No
For Use in Masonry	No
For Use in Plumbing	No
For Use in Vents	No
For Use in Windows	No
CA Residents: Prop 65 Warning(s)	No
UNSPSC	30141500

Frequently Asked Questions (FAQ):

Q: How is this insulation installed?
A: It is loose-fill fiberglass designed to be blown in using an insulation blowing machine; follow bag instructions and attic rulers for depth.

Q: Can it go over existing insulation?
A: Yes, it can be installed on top of existing insulation to increase overall R-value.

Q: Where can I use it?
A: It’s intended for attics and ceilings; not for walls, floors, crawlspaces, doors, ducts, or masonry.

Q: Is it safe for indoor air quality?
A: Yes—it's formaldehyde-free and GREENGUARD Gold certified for low chemical emissions.

Q: What coverage will I get per bag?
A: Each 25.2-lb bag covers approximately 109 square feet at R-19 when installed to the specified depth.

Cocoon Your Home in Quiet, Efficient Comfort

This airy, snowlike fiberglass transforms an attic into a high‑performing envelope, softening acoustics and elevating the feel of the entire home. I love its clean, formaldehyde‑free composition—an elegant solution that improves comfort without visual clutter. Layer it over existing insulation for an instant upgrade, then finish with crisp attic rulers and tidy access points for a polished look. It’s a discreet essential for luxe, energy‑wise living.

Boost comfort and cut energy costs—add Attic Protector to your cart and upgrade your home today.