Johns Manville R-25 Unfaced Fiberglass Batt Insulation, 64-sq ft Coverage, 16-in x 96-in
Regular price $73.06R-25 Unfaced Fiberglass Batt Insulation, 64-sq ft
Formaldehyde‑free fiberglass batts deliver R-25 thermal performance for attics, ceilings, and floors. Precut to fit 16-in on-center cavities, these unfaced batts add energy efficiency and sound control without a vapor barrier.
Key Features:
- Energy Efficiency & Comfort: R-25 thermal performance helps reduce heat loss and provides acoustic damping
- Unfaced Design: No vapor barrier—ideal for layering over existing insulation
- Precut Convenience: Sized for 16-in on-center framing, easy press-in installation
- Healthy Indoor Air: Formaldehyde-free and GREENGUARD Gold Certified
- Durable Composition: Fiberglass will not rot, mildew, or corrode pipes and wiring
Specifications Table:
| Specification | Details |
|---|---|
| Coverage Area (Sq. Feet) | 64 |
| Length (Inches) | 96 |
| Width (Inches) | 16 |
| Thickness (Inches) | 8.25 |
| Faced/Unfaced | Unfaced |
| Insulation Type | Fiberglass |
| Maximum R-Value | 25 |
| R-Value per Inch | 3.03 |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| Framing Type | Steel studs |
| Stud Spacing (Inches) | 16 |
| 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 |
| Vapor Retardant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Bag Dimensions (L x W x D) | 20 x 20 x 50 |
| Package Weight (lbs.) | 21.61 |
| Package Type | Multi-pack |
| Package Count | 6 |
| Multi-Pack Quantity | 4 |
| Total Package Quantity | 24 |
| CA Residents: Prop 65 Warning(s) | No |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: Can I install these batts over existing insulation?
A: Yes. As unfaced batts, they can be layered on top of existing insulation to increase R-value.
Q: Do I need a vapor barrier with this product?
A: These batts are unfaced; add a separate vapor retarder if your local code or climate requires one.
Q: What framing do these fit?
A: They are precut for 16-in on-center cavities and standard 8-ft walls; suitable for attics, ceilings, and floors.
Q: Are there any certifications?
A: GREENGUARD Gold and SCS recycled content certified; ENERGY STAR partner.
Q: What tools are needed for installation?
A: Tape measure, utility knife, gloves/eye protection, long sleeves, and sealant (caulk or spray foam) for gaps.
Quiet, Cozy, and Clean-Lined Comfort
This insulation brings a serene hush and reliable warmth to your home’s envelope, refining the feel of every room. The crisp, unfaced batts slide neatly into 16-inch cavities, creating a seamless, tailored layer. Pair it with meticulous air sealing around outlets and trim for a polished, high-performance envelope. It’s an essential foundation for luxurious living—comfortable, quiet, and beautifully efficient.
Upgrade your home’s efficiency and comfort with these R-25 unfaced batts—add them to your cart and start insulating today.
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