R-11 Unfaced Fiberglass Batt Insulation (Steel Stud)

JM R-11 unfaced fiberglass batt insulation is sized for 16-in steel-stud framing to help improve thermal performance and provide sound control in walls and other interior cavities. Precut 16 in x 96 in batts press-fit between studs for straightforward installation on new construction or remodel projects.

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Key Features:

• Sized for Steel Stud Walls: Precut 16 in x 96 in batts designed for standard 16-in on-center steel-stud framing.
• Unfaced Design: No built-in vapor retarder, making it suitable for adding to existing insulation where appropriate.
• Thermal + Sound Benefits: R-11 fiberglass batts help reduce heat transfer and improve interior sound control.
• Certified Performance: Meets listed standards including ASTM C665 Type I and GREENGUARD Gold certification.
• Jobsite-Friendly Installation: Simple press-fit installation between studs; cut as needed with a utility knife.

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Specifications Table:

Specification	Details
Brand	JM
Material	Fiberglass
Insulation Type	Batt
Faced/Unfaced	Unfaced
R-Value	R-11
Width	16 in
Length	96 in
Thickness	3-5/8 in
Coverage Area	170.66 sq ft
For Use With	Steel stud framing
Application	For new construction and remodels; walls, floors, ceilings, basements, attics and crawlspaces
Flame Spread Index	<25
Smoke Developed Index	<50
Temperature Rating	850 °F
Water Vapor Sorption	<5%
Standards/Certifications	ASTM C665 Type I; ASTM E136; IBC; Energy Star Certified; Greenguard Gold Certified; Indoor Air Quality Certified; NAIMA 16 CFR Part 460; Recycled Content Certified

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Frequently Asked Questions (FAQ):

Q: What cavity size is this insulation designed to fit?
A: It is sized for standard 16-in on-center steel-stud framing, with batts measuring 16 in wide x 96 in long and approximately 3-5/8 in thick.

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Q: Is this insulation faced or does it include a vapor barrier?
A: It is unfaced and does not include a vapor retarder.

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Q: Where can I use these batts?
A: They’re listed for new construction and remodel applications including walls, floors, ceilings, basements, attics, and crawlspaces (verify suitability for your specific assembly and local code requirements).

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Q: How do I install unfaced fiberglass batts?
A: Measure the cavity, cut as needed, and press the batt in place between studs for a friction fit.

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Q: What certifications or standards does it meet?
A: Listed certifications include ASTM C665 Type I, ASTM E136, IBC, ENERGY STAR, GREENGUARD Gold, Indoor Air Quality Certified, NAIMA 16 CFR Part 460, and Recycled Content Certified.

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Quiet comfort, beautifully concealed

Think of this as the invisible layer that elevates a room—softening sound, steadying temperature, and making interiors feel instantly more composed. The unfaced fiberglass batt slips neatly into steel-stud cavities, keeping the look clean while the performance does the heavy lifting behind the walls. Use it to refine bedrooms, offices, or media spaces where calm is the true luxury. It’s the kind of foundational upgrade that makes a home feel finished in all the right ways.

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Upgrade your wall cavities with JM R-11 unfaced fiberglass batts for a quieter, more energy-smart space.