CertainTeed R-11 Unfaced Fiberglass Batt Insulation, 15-1/4 in x 93 in, 3-1/2 in Thick, 157.58 sq-ftR 11 Unfaced Fiberglass Batt Insulation (15 1 4 in x 93 in) CertainTeed InsulPure unfaced fiberglass batt insulation helps reduce heat loss and gain to improve comfort and energy efficiency. Designed to fit common stud and joist cavities, it cuts and installs easily for walls, floors, and ceilings. Key Features: Energy Saving R 11 Performance: Helps slow heat transfer for improved comfort and reduced heating cooling costs. Unfaced Batt Design: Ideal

R-11 Unfaced Fiberglass Batt Insulation (15-1/4 in x 93 in)

CertainTeed InsulPure® unfaced fiberglass batt insulation helps reduce heat loss and gain to improve comfort and energy efficiency. Designed to fit common stud and joist cavities, it cuts and installs easily for walls, floors, and ceilings.

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Key Features:

• Energy-Saving R-11 Performance: Helps slow heat transfer for improved comfort and reduced heating/cooling costs.
• Unfaced Batt Design: Ideal where a separate vapor retarder is used or not required, and for layering with other insulation where appropriate.
• Sized for Common Framing: 15-1/4 in width fits standard stud/joist cavities; 93 in length reduces seams and waste.
• Durable Resistance: Resists fire, mildew, and mold for reliable performance in typical residential assemblies.
• High-Temperature Tolerance: Rated up to 450°F for use in appropriate building applications.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Brand	CertainTeed®
Product line	InsulPure®
Insulation type	Batt insulation
Material	Fiberglass
Facing type	Unfaced
R-Value	R-11
Width	15-1/4 in
Length	93 in
Thickness	3-1/2 in
Coverage area	157.58 sq-ft
Installation type	Cathedral ceilings; ceiling joists; floor joists; studs
Resists	Fire; mildew; mold
Temperature rating	450°F

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Frequently Asked Questions (FAQ):

Q: Where can I install these batts?
A: They’re listed for installation in cathedral ceilings, ceiling joists, floor joists, and studs.

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Q: Does unfaced insulation include a vapor barrier?
A: No—unfaced batts do not include facing; use a vapor retarder only where required by your local building code and assembly design.

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Q: How do I cut and fit fiberglass batts?
A: Measure the cavity, then cut the batt to size and fit it snugly between framing members; standard drywall/utility cutting tools are typically used.

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Q: How much area does one package cover?
A: This package covers 157.58 sq ft.

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Q: What is the thickness of this R-11 batt?
A: The listed thickness is 3-1/2 in.

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Quietly Powerful Comfort—Layered Warmth Without the Bulk

Great design starts with the unseen—those invisible layers that make a space feel calm, temperate, and beautifully composed. These unfaced fiberglass batts slip neatly into framing, creating a more consistent interior environment so the finishes, furnishings, and light can do their work uninterrupted. I love the unfaced format for its flexibility—perfect for thoughtful assemblies where you want control and customization. Consider it the understated foundation of luxurious living: comfort, refined.

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Upgrade everyday comfort and efficiency—add CertainTeed R-11 unfaced batts to your project today.

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