R-38 Kraft Guardian Faced Fiberglass Insulation Batt, 12" x 16" x 48", 42.7 SF | Knauf Insulation
SKU: 8435309785

R-38 Kraft Guardian Faced Fiberglass Insulation Batt, 12" x 16" x 48", 42.7 SF | Knauf Insulation

Sale price$63.31 Regular price$70.35
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Description

R-38 Kraft Guardian Faced Fiberglass Insulation Batt, 12" x 16" x 48", 42.7 SF | Knauf InsulationR 38 Kraft Faced Fiberglass Insulation Batt (12 x 16 x 48) High R 38 fiberglass batt insulation with Guardian kraft facing for thermal performance in attics and walls. Sized 12" x 16" x 48" with 42. 7 sq. ft. coverage per pack, ideal for energy efficient upgrades. Key Features: Energy Efficiency: R 38 thermal rating helps reduce heat loss and improve comfort Vapor Retarder: Guardian kraft facing controls moisture migration in framed cavities Easy Fit:

R-38 Kraft-Faced Fiberglass Insulation Batt (12 x 16 x 48)

High R-38 fiberglass batt insulation with Guardian kraft facing for thermal performance in attics and walls. Sized 12" x 16" x 48" with 42.7 sq. ft. coverage per pack, ideal for energy-efficient upgrades.


Key Features:

  • Energy Efficiency: R-38 thermal rating helps reduce heat loss and improve comfort
  • Vapor Retarder: Guardian kraft facing controls moisture migration in framed cavities
  • Easy Fit: Pre-cut 12" x 16" x 48" batts simplify installation in standard framing
  • Coverage: 42.7 square feet per package for straightforward planning
  • Trusted Brand: Made by Knauf Insulation for reliable performance

Specifications Table:

Specification Details
R-Value R-38
Facing Guardian kraft faced
Material Fiberglass
Dimensions 12 in x 16 in x 48 in
Coverage per pack 42.7 sq ft

Frequently Asked Questions (FAQ):

Q: Can these batts be used in attic applications?
A: Yes, R-38 batts are commonly used in attics and other high-R-value areas; verify cavity depth matches batt thickness.


Q: Do I need a separate vapor barrier?
A: The Guardian kraft facing serves as a vapor retarder; install with facing toward the conditioned space unless local codes specify otherwise.


Q: How much area does one pack cover?
A: Approximately 42.7 square feet per package.


Q: Are the batts pre-cut?
A: Yes, they are pre-cut to 12" x 16" x 48" for easier placement in framing.


Q: Do I need special tools to install?
A: Basic tools like a utility knife, stapler, and protective gear are sufficient; follow local codes and manufacturer guidance.


Layered Warmth with Crisp, Clean Lines

These R-38 kraft-faced batts quietly elevate a space—bringing a cocooning warmth that supports serene, livable interiors. I love the tailored dimensions; they slip into framing with a neat, tailored edge. Pair with natural wood tones and matte paints to let the comfort take center stage. It’s an essential foundation for homes that feel richly insulated and effortlessly luxurious.


Upgrade your home’s efficiency and comfort—add these R-38 kraft-faced batts to your project today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8435309785

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ashley gavin
San Leandro, US
★★★★★ 5
Prom 2026
Color: Blue 02, Size: Medium, Color: Blue 02, Size: Medium
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Tiffany K.
Omaha, US
★★★★★ 4
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Color: Black 02, Size: Medium
I bought a medium for my son who normally wears medium. It was extremely big. The quality and arm length was good.
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Sarah porter
Natrona Heights, US
★★★★★ 5
Show stopper!
Size: X-Small, Color: Blue-2 Pieces, Size: X-Small, Color: Blue-2 Pieces
This jacket is everything! My son wore it to his football banquet and it looked amazing. I was worried because he is big for his age and although he can wear men sizes, they can sometimes be too long in the arms. This jacket did not disappoint. It fit his arms well, buttoned up nice and was a great length. It was a nice feel and was not overbearing and thick, but made well. He did a lot of moving around but had no issue with feeling tight it’s certain movements or any rip. I would definitely recommend, money well spent. For reference, my son is 5’1 and 125 pounds. We got a size XS.
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Los Angeles, US
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Perfect for Prom
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Pants fit a little big but perfect for alterations needed! Great quality
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chrystal
Alexandria, US
★★★★★ 5
True to size
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Love this item true to fit
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Reviewed in the United States on May 9, 2026

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