Store Location

Store Location: 125 N Main St , Butte, Montana 59701, United States
Store email: [email protected]

Fiberglass batt insulation

Johns Manville R-30 Attic Kraft-Faced Fiberglass Batt Insulation, 88-sq ft Coverage, 24-in x 48-in, K1243S

★★★★★  5.0

In Stock

$117.55

$58.78

Quantity:

SKU: A143392465

Product Detail

Description

R-30 Kraft-Faced Fiberglass Batt Attic Insulation, 24x48

High-efficiency R-30 batt insulation designed for wood-framed attics, ceilings, and floors. Kraft-facing provides a built-in vapor retarder for moisture control, while the formaldehyde-free fiberglass improves energy efficiency and sound performance. Precut batts offer straightforward installation and 88-sq ft total coverage.

Key Features:

  • Built-in Moisture Control: Kraft-facing acts as a vapor retarder to help manage attic humidity
  • Energy & Sound Performance: R-30 fiberglass batts reduce heat loss and dampen noise
  • Simple Installation: Precut 24-in x 48-in batts press in place between 24-in stud/joist spacing
  • Durable & Noncorrosive: Fiberglass will not rot, mildew, or corrode pipes, wiring, or metal studs
  • Health-Conscious Certifications: Formaldehyde-free; GREENGUARD Gold and SCS recycled content certified

Specifications Table:

Specification Details
Coverage Area88 sq ft
Length48 in
Width24 in
Thickness10.25 in
Faced/UnfacedKraft faced
Insulation TypeFiberglass
Maximum R-ValueR-30
Stud/Joist Spacing24 in
Pieces per Package11
Package TypeMulti-pack
Package Weight36.7 lbs
R-Value per Inch2.9268
Sound BarrierYes
Vapor RetardantYes
Formaldehyde FreeYes
ENERGY STAR CertifiedYes
GREENGUARD Gold CertifiedYes
Warranty1-year limited
Bag Dimensions (L x W x D)24.5 x 20 x 50 in
For Use in AtticsYes
For Use in CeilingsYes
For Use in FloorsYes
For Use in WallsNo

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: This multi-pack covers 88 square feet total with 11 precut batts sized 24 in x 48 in.

Q: Where should I use this insulation?
A: It is intended for wood-framed attics, ceilings, and floors with 24-in stud/joist spacing.

Q: Do I need a separate vapor barrier?
A: No, the kraft-facing provides a built-in vapor retarder; staple the tabs if additional securement is required.

Q: Is it safe for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold Certified.

Q: What tools are recommended for installation?
A: Utility knife, gloves and eyewear, long sleeves, attic ruler, and caulk or spray foam for sealing gaps.

Quiet, Cozy Comfort for the Attic

This kraft-faced batt brings a tailored layer of warmth and hush to overhead spaces, refining comfort from the top down. The clean, precut form factor slips neatly between joists, making installation crisp and orderly. Pair it with light-toned decking and streamlined storage to keep the attic open and serene. Its a smart, elegant upgrade that elevates everyday living with efficient, luxurious calm.

Upgrade your attic with R-30 performanceadd Johns Manville kraft-faced batts to boost efficiency and comfort today.

Related Product

Free Delivery

Enjoy a discount on orders over $30.

100% Secure Payment

We ensure your money is
save

Customer Support 24/7

Instant access to
Support

Money-Back Guarantee

30 Days Money-Back
Guarantee

Pellet Grills for Backyard Smoking with Automatic Feed System and Flavorful Wood Fired Cooking