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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4.2 ★★★★★
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islandlady
Belleville, US
★★★★★ 5
Really like these cotton rounds
Size: 100 Count (Pack of 1)
I do like these cotton rounds. They hold up and work well to remove make up and clean my skin in between actually washing my face. They are soft but strong and a good size for makeup removal. These are much nicer than the ones I bought previously that shed on my skin. They are somewhat thick and seem to have a decent cotton content.
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Reviewed in the United States on May 17, 2026
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BSL
Carnegie, US
★★★★★ 5
Sky High is right!
Color: BLACKEST BLACK, Size: 0.24 Fl Oz (Pack of 1)
This mascara truly delivers. The formula dries quickly without flaking or transferring, and the slim applicator brush makes application effortless and precise. I wore it all day and well into the night, and it stayed flawless the entire time with no touch-ups needed. Long-lasting, lightweight, and high quality. I will definitely be repurchasing.
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Reviewed in the United States on May 21, 2026
J
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Jessica
Lexington, US
★★★★★ 5
Great mascara
Color: BLACKEST BLACK, Size: 0.24 Fl Oz (Pack of 1)
I’ve tried a ton of mascaras but this one definitely far exceeds my expectations compared to other mascaras. I wouldn’t go as far as to say your lashes will be unbelievably long and fake looking- but it definitely adds volume and depth to my lashes while maintaining a real lash look. I don’t have issues with clumping or lash breakage with this mascara. It washes off easily without leaving you with raccoon eyes. Also it does not cause eye sensitivity for me.
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Reviewed in the United States on May 29, 2026
D
Verified Purchase
Denise Blackburn
Fort Morgan, US
★★★★★ 5
Best mascara I've tried!
Color: VERY BLACK, Size: 0.24 Fl Oz (Pack of 1)
This is hands down my favorite mascara! It gives amazing length and volume without feeling heavy or clumpy. My lashes look so much longer, and it lasts really well throughout the day. I keep coming back to this one because it works better than many more expensive mascaras I’ve tried!
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Reviewed in the United States on May 21, 2026
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Customer
Chelsea, US
★★★★★ 4
Good Everyday Mascara
Color: BLACKEST BLACK, Size: 0.24 Fl Oz (Pack of 1)
I’ve been using the Maybelline Lash Sensational Sky High Washable Mascara for a couple of weeks now, and overall I’m really impressed. The biggest standout is the length. It genuinely makes my lashes look noticeably longer without needing multiple coats. The flexible brush does a great job grabbing even the smaller lashes, and I didn’t have much issue with clumping as long as I applied it carefully. It also holds a curl better than I expected for a washable formula, which is a big plus. Another thing I appreciate is how lightweight it feels. My lashes don’t get that heavy, stiff feeling some volumizing mascaras can cause. It’s also easy to remove at the end of the day, which makes it great for everyday use. That said, it’s not perfect. While it does add some volume, if you’re looking for a very bold, thick lash look, you might find it a bit lacking. I also noticed a tiny bit of smudging under my eyes after a long day, though nothing too extreme. Overall, this is a great mascara for length and a more defined, lifted look. I’d definitely repurchase, especially for daily wear, but I’d pair it with something more volumizing for special occasions.
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Reviewed in the United States on May 3, 2026

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