R-13 Unfaced Fiberglass Batt Insulation (128.04 sq ft)

CertainTeed InsulPure R-13 unfaced fiberglass batt insulation is designed for 2x4 walls and floors to help improve thermal comfort and reduce noise. The formaldehyde-free, GREENGUARD Gold certified insulation is easy to cut and fit for common stud spacing applications.

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Key Features:

• R-13 Thermal Performance: Helps reduce heat loss/gain for more consistent indoor comfort in 2x4 wall and floor cavities.
• Unfaced Batt Design: Ideal when no kraft facing/vapor retarder is desired and for layering with other assemblies.
• Cleaner Indoor Air Choice: UL-validated formaldehyde-free and GREENGUARD Gold certified for low VOC emissions.
• Durable & Moisture Resistant: Resists mold and mildew and won’t rot or deteriorate.
• DIY-Friendly Handling: Lightweight batts can be cut with standard drywall tools for faster installation.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Brand	CertainTeed
Series Name	InsulPure
Category	Batt Insulation
Insulation Type	Fiberglass
Roll or Batt	Batt
Faced/Unfaced	Unfaced
R-Value	R-13
R-Value per Inch	13
Maximum R-Value	13
Thickness (in)	3.5
Width (in)	15.25
Length (in)	93
Product Length (ft)	7.75 ft
Coverage Area (sq ft)	128.04
Total Package Quantity (pieces)	13
Package Type	Multi-pack
Bag Dimensions (L x W x D)	3.5 x 15.25 x 93
Package Weight (lb)	30.83
Product Weight (lb)	30.505
Stud Spacing (in)	16
Fits 2 x 4 Walls	Yes
Fits 2 x 6 Walls	No
For Use in Walls	Yes
For Use in Floors	Yes
For Use in Attics	No
For Use in Ceilings	No
For Use in Basements	No
For Use in Crawlspaces	No
For Use in Doors	No
For Use in Duct	No
For Use in Electrical	No
For Use in Garage Doors	No
For Use in Masonry	No
For Use in Plumbing	No
For Use in Vents	No
For Use in Windows	No
Vapor Retardant	No
Sound Barrier	No
Formaldehyde Free	Yes
GREENGUARD Gold Certified	Yes
ENERGY STAR Certified	No
CA Residents: Prop 65 Warning(s)	No
Warranty	20-year limited
Warranty Information	20 year
UNSPSC	11162400
Compatible Install Surface	Existing Drywall, Existing Insulation, Fiberglass
Fits Size	2 x 4 Wall
Insulation Location	Attic, Ceiling Insulation, Interior Wall
Insulation Features	Soundproofing Insulation, Stainable
Pack Size	1

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Frequently Asked Questions (FAQ):

Q: How much area does one bag cover?
A: One bag covers 128.04 sq ft.

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Q: Will this fit standard 2x4 walls?
A: Yes. The batts are sized for 16-in stud spacing and fit 2x4 walls.

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Q: Is it faced or unfaced, and does it include a vapor retarder?
A: It is unfaced and does not include a vapor retardant.

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Q: Can it be used for sound control?
A: It’s intended for thermal and acoustical insulation applications and is marketed as providing excellent acoustical performance.

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Q: Is it formaldehyde-free?
A: Yes—listed as UL-validated formaldehyde-free.

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Quiet comfort, beautifully concealed

Think of this insulation as the invisible layer that makes a room feel finished—warmer in winter, cooler in summer, and noticeably calmer acoustically. The unfaced fiberglass batt format keeps your assemblies flexible, slipping cleanly into 2x4 cavities without adding a visible barrier. Use it to refine bedrooms, studios, or any space where hush and comfort elevate the experience. It’s the kind of behind-the-walls essential that turns everyday living into effortless luxury.

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Upgrade your walls and floors with CertainTeed InsulPure R-13 batts for a more comfortable, quieter home.

Warranty

Installation