Energy-saving Johns Manville R-25 unfaced fiberglass batts deliver thermal performance and sound control for attics, ceilings and floors. Pre-cut to 24 in x 96 in for easy placement between 24-in on-center framing, these formaldehyde-free batts cover 96 sq ft per package.
Key Features:
Reliable Thermal Performance: R-25 fiberglass batts help reduce heat loss and improve energy efficiency
Pre-Cut Convenience: 24 in x 96 in batts fit 24-in on-center framing for quick installation
Unfaced Design: No vapor retarder—ideal for adding over existing insulation where appropriate
Health & Safety Certifications: Formaldehyde-free; GREENGUARD Gold and SCS certified for indoor air quality
Durable & Noncorrosive: Will not rot or mildew and safe for contact with pipes, wiring, and metal studs
Specifications Table:
Specification
Details
R-Value
25
Insulation Type
Fiberglass
Faced/Unfaced
Unfaced
Coverage Area (Sq. Feet)
96
Length (Inches)
96
Width (Inches)
24
Thickness (Inches)
8.25
Stud Spacing (Inches)
24
For Use in Attics
Yes
For Use in Ceilings
Yes
For Use in Floors
Yes
For Use in Basements
Yes
For Use in Walls
No
For Use in Crawlspaces
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
Framing Type
Steel studs
Formaldehyde Free
Yes
Sound Barrier
Yes
Vapor Retardant
No
ENERGY STAR Certified
Yes
GREENGUARD Gold Certified
Yes
SCS Recycled Content Certification
Yes
R-Value per Inch
3.03
Package Weight (lbs.)
32.41
Bag Dimensions (L x W x D)
20 x 20 x 50
Warranty
1-year limited
UNSPSC
11162400
Package Type
Multi-pack
Package Count
6
Multi-Pack Quantity
4
Total Package Quantity
24
Frequently Asked Questions (FAQ):
Q: How much area does one package cover? A: 96 square feet per package.
Q: Where can these batts be used? A: They are suitable for attics, ceilings, and floors; not recommended for walls or crawlspaces in this configuration.
Q: Do these batts include a vapor retarder? A: No. They are unfaced and contain no vapor barrier.
Q: What framing do they fit? A: Pre-cut for 24-in on-center framing and steel studs.
Q: Are there environmental certifications? A: Yes—Formaldehyde Free, GREENGUARD Gold Certified, and SCS Recycled Content certification.
Quiet Comfort, Tailored for Modern Attics
These R-25 unfaced batts wrap your home in a hush, elevating comfort while keeping energy use beautifully restrained. I love the clean, neutral fiber that tucks seamlessly into 24-inch cavities for a crisp, professional finish. Layer them in spacious attic bays or floors to soften sound and stabilize temperatures season to season. It’s a smart, elegant foundation—essential for luxurious, efficient living.
Upgrade your attic with JM R-25 batts today and start saving energy while creating a quieter, more comfortable home.
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