R-13 Thermafiber Fire & Sound Guard Plus Mineral Wool Batts (3.5 x 24 x 48, 16 Packs)

Owens Corning Thermafiber Fire & Sound Guard Plus delivers R-13 thermal performance with outstanding fire resistance and sound control. These mineral wool batts fit 3.5 in cavities for interior or exterior walls, providing a durable, moisture-resistant solution for residential and light commercial projects.

Key Features:

• Mineral Wool Performance: Non-combustible, moisture-resistant batts provide reliable fire and sound control
• R-13 Thermal Insulation: Helps improve energy efficiency in 2x4 wall assemblies
• Easy Fit Installation: Flexible batts cut cleanly and expand to fill cavities for a snug fit
• Code-Compliant Quality: Meets NFPA 101 Class A interior finish and ASTM C665 Type 1 standards
• Versatile Applications: Ideal for interior/exterior walls, ceilings, basements, and crawl spaces

Please check the Product Data Sheet Here

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What material is this insulation made from?
A: Mineral wool (stone wool), which is non-combustible and moisture-resistant.

Q: What is the R-value of these batts?
A: R-13 for 3.5 in thickness, suitable for typical 2x4 wall cavities.

Q: Where can I use these batts?
A: Interior and exterior walls, ceilings, basement walls, and crawl spaces in residential or light commercial projects.

Q: Are these batts easy to install?
A: Yes. They cut easily with a serrated knife and naturally expand to fill the cavity for a snug fit.

Q: Do they meet building standards?
A: Yes. They meet NFPA 101 Class A-rated interior finish and ASTM C665 Type 1 compliance.

Quiet Strength, Tailored for Modern Walls

This mineral wool insulation sculpts serenity into your rooms, softening the sonic edges while keeping temperatures luxuriously even. I love the dense, velvety texture—an architectural layer that disappears yet elevates the experience of a space. Tuck it behind bold plaster or warm wood paneling to let your finishes shine while conversations stay intimate. It’s an invisible essential that whispers sophistication and comfort in every wall.

Upgrade your walls with R-13 Thermafiber Fire & Sound Guard Plus and enjoy quieter, safer, more efficient living—order your 16-pack today.