R-30 Unfaced Fiberglass Batt Attic Insulation

Formaldehyde-free fiberglass batts designed for attics deliver R-30 thermal performance with sound control. Precut to fit 16-in on-center wood stud cavities, each bag covers 58.66 sq ft for efficient energy upgrades.

Key Features:

• High R-Value Performance: R-30 thermal insulation helps reduce energy costs and improve comfort
• Unfaced Design: No vapor barrier—ideal for adding over existing insulation layers
• Precut for Easy Fit: 16-in x 48-in batts press in place between joists for quick installation
• Durable, Safe Material: Fiberglass won’t rot or corrode; formaldehyde-free and GREENGUARD Gold Certified
• Sound Control: Helps dampen noise in attics and living spaces

Specifications Table:

Frequently Asked Questions (FAQ):

Q: How much area does one bag cover?
A: One bag covers 58.66 square feet with 11 precut pieces sized 16 in x 48 in.

Q: Can I install this over existing insulation?
A: Yes. As an unfaced batt without a vapor barrier, it can be layered over existing insulation where appropriate.

Q: What framing does it fit?
A: Designed for 16-in on-center wood stud or joist spacing in attics and ceilings.

Q: Is it safe for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold Certified for indoor air quality.

Q: Where can it be used?
A: For use in attics, ceilings, basements, and floors; not intended for walls or crawlspaces.

A quiet, cozy attic upgrade with effortless precision

These pristine, unfaced batts slip neatly between joists, instantly dialing up comfort while softening household noise. The generous 10.25-in loft and R-30 rating create a plush thermal blanket that feels tailor-made for 16-inch spacing. Layer them to build a serene envelope above bedrooms, then finish with clean access panels for a refined look. It’s a simple, luxe step toward a calmer, more efficient home.

Upgrade your attic with R-30 comfort—add Johns Manville batts to boost efficiency and quiet today.