Owens Corning R-38 Unfaced Fiberglass Insulation Batts, 10.25 in. x 23.75 in. x 48 in. (4 Bags)

Regular price $470.09

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Owens Corning R-38 Unfaced Fiberglass Insulation Batts

High-R value fiberglass batts designed for cathedral ceilings and attics, delivering energy-saving thermal performance and sound reduction. Unfaced PINK Next Gen Fiberglas installs cleanly and quickly with soft, shed-resistant fibers.


Key Features:

  • High Thermal Performance: R-38 batts help boost attic and cathedral ceiling efficiency
  • Unfaced Design: Ideal where moisture management isn’t required; vapor retarder can be added as needed
  • Fast, Clean Installation: Advanced fiber technology recovers quickly and cuts cleanly with less dust
  • Comfort and Sound Control: Soft fibers provide sound-dampening benefits for quieter spaces
  • Health & Certification: Formaldehyde-free and GREENGUARD Gold certified to support indoor air quality

Specifications Table:

Specification Details
Insulation Type Fiberglass
Faced/Unfaced Unfaced
Maximum R-Value R-38 (R-38C)
Thickness 10.25 in
Width 23.75 in
Length 48 in
Coverage Area 63.33 sq ft per pack
Pieces per Pack 8
Stud Spacing 24 in
For Use in Attics Yes
For Use in Ceilings Yes
For Use in Walls No
Formaldehyde Free Yes
Sound Barrier Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
Framing Type Wood studs
R-Value per Inch 3.7
Package Type Individual pack
Total Package Quantity 1
Package Weight 57.872 lb
Bag Dimensions (L x W x D) 50 in x 18.25 in x 24 in
Warranty Limited lifetime

Frequently Asked Questions (FAQ):

Q: How many pieces are in a pack?
A: Each pack contains 8 batts, sized 10.25 in thick x 23.75 in wide x 48 in long.


Q: Where can this insulation be used?
A: Designed for attics and cathedral ceilings with 24-inch stud spacing; not intended for standard wall cavities.


Q: Does it include a vapor barrier?
A: No—these batts are unfaced. A separate vapor retarder can be added to the assembly if required by code.


Q: Is the product formaldehyde-free?
A: Yes, it is formaldehyde-free and GREENGUARD Gold certified.


Q: What is the coverage per pack?
A: One pack covers approximately 63.33 square feet.


Quiet, Cozy Luxury for Elevated Ceilings

This insulation cocoons cathedral spaces in serene comfort, taming temperature swings and hush­ing ambient noise. I love the plush, resilient fiber—its soft, airy texture brings a refined sensibility to performance. Layer it in attics and vaulted ceilings to create a calm, energy-smart envelope. It’s a discreet essential that elevates everyday living with effortless warmth and quiet.


Upgrade your attic with R-38 PINK Next Gen Fiberglas batts for a quieter, more energy-efficient home—order today.

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