Johns Manville R-11 Kraft-Faced Fiberglass Batt Insulation, 237.66-sq ft Coverage, 23 in W x 93 in L (K1255)

Regular price $106.42

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R-11 Kraft-Faced Fiberglass Wall Batt Insulation

Formaledehyde-free kraft-faced fiberglass batts designed for 2x4 wood-stud walls. Provides R-11 thermal performance with integrated vapor retarder and sound control, covering 237.66 sq ft per pack.


Key Features:

  • Designed for 2x4 Walls: Pre-cut 23 in x 93 in batts fit 24 in on-center framing for 9-ft walls
  • Moisture Control: Kraft facing acts as a built-in vapor retarder for concealed wall applications
  • Sound Control: Helps reduce noise transmission while improving energy efficiency
  • Easy Installation: Press into place between studs; staple tabs if additional securement is needed
  • Durable & Safe: Formaldehyde-free fiberglass that will not rot, mildew, or corrode pipes and wiring

Specifications Table:

Specification Details
Coverage Area (Sq. Feet) 237.66
Length (Inches) 93
Width (Inches) 23
Thickness (Inches) 3.5
Faced/Unfaced Kraft faced
Fits 2 x 4 Walls Yes
Fits 2 x 6 Walls No
For Use in Basements Yes
For Use in Walls Yes
For Use in Attics No
For Use in Ceilings No
For Use in Floors No
Sound Barrier Yes
Insulation Type Fiberglass
Framing Type Wood studs
Maximum R-Value 11
R-Value per Inch 3.1429
Stud Spacing (Inches) 24
Package Count 16
Total Package Quantity 16
Package Type Individual pack
Formaldehyde Free Yes
Vapor Retardant Yes
GREENGUARD Gold Certified Yes
ENERGY STAR Certified Yes
Warranty 1-year limited
Bag Dimensions (L x W x D) 23.5 x 20 x 49
Package Weight (lbs.) 37.08
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: 237.66 sq ft total coverage across 16 pre-cut batts.


Q: What wall framing is this intended for?
A: 2x4 wood-stud walls with 24 in on-center stud spacing and 9-ft wall height.


Q: Is there a vapor barrier?
A: Yes, the kraft facing provides a vapor retarder for moisture control in wall cavities.


Q: Can it be used in basements?
A: Yes, it is suitable for basements and walls; not intended for attics, ceilings, or floors.


Q: What is the R-value and thickness?
A: R-11 thermal resistance with a 3.5 in thickness.


Quiet comfort with a clean, tailored finish

These kraft-faced batts bring serene, hushed energy to rooms, wrapping walls in a neat, paper-lined layer. The slim 3.5-inch profile slips seamlessly into 2x4 framing, delivering reliable R-11 performance with a refined, uniform surface. Style it by pairing with warm wood tones and matte hardware to enhance the cozy, composed vibe. It’s a smart essential for creating polished, luxurious comfort in everyday spaces.


Upgrade your walls with JM R-11 kraft-faced batts for easy installation, better comfort, and quieter living—add to cart now.

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