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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.
| 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 |
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.
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.
Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
US$40
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