SKU: 38490900518

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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Description

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

R-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 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38490900518

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4.6 ★★★★★
Based on 7 reviews
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M
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MJE
Whiting, US
★★★★★ 4
These shoes make a great first impression, but beware of the stingy toe box.
Size: 13.5 Wide Big Kid, Color: Black/Orange
These shoes make a good first impression. They look sharp and appear to be well-made for running shoes. They also get bonus points for having actual laces instead of the common velco/fake laces combo. However, my son struggled to get them on at first due to limited room in the toe box. He has wide feet as well as high arches and the shoes were very snug across the top of his foot initially. Once he got them on, we determined that they were both wide enough (which is a rarity in itself) and the right size – just tight across the top. I actually had to remove the insoles to get them on his feet at first. After a few minutes I tried again with the insoles and he wore them around the house for a few hours, at which point the upper material had relaxed and/or the footbed had started to take on the shape of his foot, in effect creating more wiggle room. By then he didn't want to take them off, so they must have gotten more comfortable after that brief break-in period. If they were still too tight I'm sure he would have complained. I'll update the review if the shoes wear out prematurely or there is anything else noteworthy to report.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2024
P
Verified Purchase
Placeholder
Massapequa, US
★★★★★ 5
Awesome shoes
Size: 6 Wide Big Kid, Color: Black/Orange
Awesome shoes, great tread, comfortable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
F
Verified Purchase
F. S.
Louisville, US
★★★★★ 5
Great sneaker!
Size: 11 Big Kid, Color: Navy/Teal/Coral
Great sneaker, my kids love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 1
Sole separation
Size: 3 Big Kid, Color: Black/Orange, Size: 3 Big Kid, Color: Black/Orange
I really dont like to write reviews, let alone a negative one. Have had the shoe 1 month and the out sole on both shoes are peeling up. Normally we have had great success with saucony shoes for my boys. But this one we haven't had good luck. I have been super gluing the soles back down everything they peal up. Hopefully this is just a 1 off incident. Both side of one shoe and a large chunk of the heal on the other. You can see the glue marks and separation in pictures.
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Reviewed in the United States on September 17, 2025
B
Verified Purchase
BoysGrandma
Belleville, US
★★★★★ 5
Will last!
Size: 5.5 Big Kid, Color: Black/Orange
Done wasting money on cheap shoes that fall apart! My grandson loved the colors and I like the durability. This is a great brand. Fits great and will last!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2025

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