SKU: 25995145516

Johns Manville R-21 Kraft-Faced Fiberglass Batt Insulation, 67.81-sq ft Coverage, 15-in x 93-in for 2x6 Walls (K1263S)

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Description

Johns Manville R-21 Kraft-Faced Fiberglass Batt Insulation, 67.81-sq ft Coverage, 15-in x 93-in for 2x6 Walls (K1263S)R 21 Kraft Faced Fiberglass Batt Insulation, 15 in x 93 in Formaledehyde free, kraft faced fiberglass batts designed for 2x6 wood stud walls. Provides R 21 thermal performance with built in vapor retarder and sound control, covering 67. 81 sq ft per pack. Key Features: Built In Vapor Retarder: Kraft facing helps manage moisture in exterior walls Energy & Sound Performance: R 21 thermal value with acoustical benefits Pre Cut for 16 in O. C.: 15 in x 93

R-21 Kraft-Faced Fiberglass Batt Insulation, 15-in x 93-in

Formaledehyde-free, kraft-faced fiberglass batts designed for 2x6 wood-stud walls. Provides R-21 thermal performance with built-in vapor retarder and sound control, covering 67.81 sq ft per pack.


Key Features:

  • Built-In Vapor Retarder: Kraft facing helps manage moisture in exterior walls
  • Energy & Sound Performance: R-21 thermal value with acoustical benefits
  • Pre-Cut for 16-in O.C.: 15-in x 93-in batts fit standard 8-ft, 2x6 wood-stud walls
  • Durable & Safe: Will not rot or corrode; formaldehyde-free and GREENGUARD Gold certified
  • Easy Installation: Compression-packed batts press in place; staple tabs for securement

Specifications Table:

Specification Details
Coverage Area (Sq. Feet) 67.81
Length (Inches) 93
Width (Inches) 15
Thickness (Inches) 5.5
Maximum R-Value 21
Faced/Unfaced Kraft faced
Framing Type Wood studs
Insulation Type Fiberglass
Stud Spacing (Inches) 16
For Use in Walls Yes
For Use in Basements Yes
For Use in Attics No
For Use in Ceilings No
For Use in Floors No
Sound Barrier Yes
Vapor Retardant Yes
Formaldehyde Free Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
Warranty 1-year limited
Package Type Multi-pack
Total Package Quantity 7
Package Count 7
Multi-Pack Quantity 5
Package Weight (lbs.) 30.9
Bag Dimensions (L x W x D) 20 x 20 x 50
R-Value per Inch 3.8181
Fits 2 x 6 Walls Yes
Fits 2 x 4 Walls 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
CA Residents: Prop 65 Warning(s) No
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: Each package covers approximately 67.81 square feet.


Q: Is this insulation suitable for 2x6 walls?
A: Yes, it is designed for 2x6 wood-stud walls with 16-inch on-center spacing.


Q: Does the kraft facing act as a vapor barrier?
A: Yes, the kraft facing provides a built-in vapor retarder for moisture control.


Q: Can I use it in ceilings or attics?
A: No, this specific product is intended for walls and basements, not ceilings or attics.


Q: Is it formaldehyde-free and certified for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold certified; it also carries SCS recycled content certification.


Warmth, Quiet, and Craft—All in One Elegant Layer

This insulation brings a refined calm to your interiors, softening acoustics while elevating energy performance. The kraft-facing introduces a tailored, architectural texture behind the drywall, designed to slip seamlessly into 2x6 wall cavities. Style your renovation with thoughtful detailing—seal gaps and frame clean lines for a polished envelope. It’s a discreet luxury that underpins a comfortable, high-end home.


Upgrade your walls with R-21 performance and moisture control—add Johns Manville kraft-faced batts to your cart today.

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SKU: 25995145516

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Sarah Sofía Ortiz Campos
West Palm Beach, US
★★★★★ 1
No recomiendo
Format: Paperback
Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.
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Reviewed in the United States on December 30, 2025
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Andres Hoyos
Louisville, US
★★★★★ 5
Excellent customer service
Format: Paperback
Totally recommendable.
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Reviewed in the United States on August 26, 2019
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Amazon Customer
Boise, US
★★★★★ 5
Five Stars
Format: Paperback
This helped a lot for us to prepare for the SLATE exam.
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Reviewed in the United States on August 23, 2016
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Amazon Customer
Draper, US
★★★★★ 5
Good
Format: Paperback
This is great! I like this one.
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Reviewed in the United States on June 22, 2016
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Ng Meowster
Carnegie, US
★★★★★ 2
Good to have if you've never seen the iTEP exam, but don't rely on it to boost your scores
Format: Paperback
This book is good in that it comes with two practice tests: one in the beginning of the book, one in the end of the book. The grading rubric is helpful too. However, the actual guide part of the book, doesn't help too much with how to improve test scores. What I like least about this guide is that it won't tell you which questions you answered incorrectly on the practice exams. A good test prep guide will tell you what you answered incorrectly, and will tell you what logic to follow to get to the correct answer. In the reading passages, it would be nice to know where I can find evidence to justify the "correct" answer. In the grammar section, it would be nice to know which rule I'm violating. Any test guide should always come with some testing strategies. I.E. If this question is taking up too much time, skip it and go to the next one. This guide lacks simple strategies like that. Simple strategies like that could be useful when incorporated into this guide because there are certain sections on the exam that you can go back to previous questions, but some sections where the "back" button is disabled. Overall, if you've never seen an iTEP exam before, this book is certainly helpful in that it will give you an idea of what you will be testing for. However, this book alone won't help you achieve a score of 6. The table of contents itself will tell you there are only 86 pages of actual content covering test material. That's not enough to cover how to excel in the exam.
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Reviewed in the United States on January 27, 2015

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