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:

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.