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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
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Description
Johns Manville R-30 Attic Unfaced Fiberglass Batt Insulation, 86.62-sq ft Coverage (23.625-in W x 48-in L)R 30 Unfaced Fiberglass Attic Batt Insulation Boost attic efficiency with Johns Manvilles R 30 unfaced fiberglass batts. Precut to fit 24 in on center framing, these formaldehyde free batts add thermal performance and sound control with 86. 62 sq ft of total coverage. Key Features: High R Value Performance: R 30 batts help improve energy efficiency and comfort in attics and ceilings Unfaced Design: No vapor barrierideal for adding over existing
R-30 Unfaced Fiberglass Attic Batt Insulation
Boost attic efficiency with Johns Manville’s R-30 unfaced fiberglass batts. Precut to fit 24-in on-center framing, these formaldehyde-free batts add thermal performance and sound control with 86.62 sq ft of total coverage.
Key Features:
- High R-Value Performance: R-30 batts help improve energy efficiency and comfort in attics and ceilings
- Unfaced Design: No vapor barrier—ideal for adding over existing insulation where appropriate
- Precut Convenience: 48-in lengths sized for 23.625-in cavities and 24-in on-center joists; press in place
- Healthy Home Certifications: Formaldehyde-free, GREENGUARD Gold Certified, and SCS recycled content
- Durable Fiberglass: Will not rot, mildew, or corrode pipes, wiring, or metal studs
Specifications Table:
| Specification | Details |
|---|---|
| Coverage Area | 86.62 sq ft |
| Length | 48 in |
| Width | 23.625 in |
| Thickness | 8.25 in |
| Faced/Unfaced | Unfaced |
| Fits 2 x 4 Walls | No |
| Fits 2 x 6 Walls | No |
| For Use in Attics | Yes |
| For Use in Basements | No |
| For Use in Ceilings | Yes |
| For Use in Crawlspaces | No |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Floors | Yes |
| For Use in Garage Doors | No |
| For Use in Masonry | No |
| For Use in Plumbing | No |
| For Use in Vents | No |
| For Use in Walls | No |
| For Use in Windows | No |
| Formaldehyde Free | Yes |
| Framing Type | Wood studs |
| Insulation Type | Fiberglass |
| Maximum R-Value | R-30 |
| R-Value per Inch | 2.9268 |
| Stud Spacing | 24 in on-center |
| Sound Barrier | Yes |
| Vapor Retardant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Package Count | 11 batts |
| Package Type | Multi-pack |
| Bag Dimensions (L x W x D) | 20 x 20 x 50 in |
| Package Weight | 47.3 lb |
| Multi-Pack Quantity | 4 |
| Total Package Quantity | 44 |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: How much area does this package cover?
A: 86.62 square feet total coverage.
Q: What are the batt dimensions?
A: Each batt is 23.625 inches wide, 48 inches long, and approximately 8.25 inches thick.
Q: Is a vapor retarder included?
A: No. These are unfaced batts and do not include a vapor retarder.
Q: Where can I use it?
A: Designed for attics and ceilings; also suitable for floors with 24-in on-center framing. Not for walls, crawlspaces, or masonry.
Q: Is the insulation formaldehyde-free and certified for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold Certified.
Quiet Comfort, Tailored for the Attic
R-30 batts deliver a whisper-quiet calm while wrapping your home in a cocoon of cozy efficiency. I love the clean, unfaced profile—streamlined and effortless to layer for cathedral ceilings. Pair with crisp white attic decking and organized storage to create a polished, functional retreat above the living space. This is the kind of invisible luxury that elevates daily living from the inside out.
Upgrade your attic with R-30 performance today and start saving on energy while enhancing year-round comfort.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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