Johns Manville R-30 Attic Kraft-Faced Fiberglass Batt Insulation, 88-sq ft Coverage, 24-in x 48-in, K1243S
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 Area | 88 sq ft |
| Length | 48 in |
| Width | 24 in |
| Thickness | 10.25 in |
| Faced/Unfaced | Kraft faced |
| Insulation Type | Fiberglass |
| Maximum R-Value | R-30 |
| Stud/Joist Spacing | 24 in |
| Pieces per Package | 11 |
| Package Type | Multi-pack |
| Package Weight | 36.7 lbs |
| R-Value per Inch | 2.9268 |
| Sound Barrier | Yes |
| Vapor Retardant | Yes |
| Formaldehyde Free | Yes |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Bag Dimensions (L x W x D) | 24.5 x 20 x 50 in |
| For Use in Attics | Yes |
| For Use in Ceilings | Yes |
| For Use in Floors | Yes |
| For Use in Walls | No |
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. It’s a smart, elegant upgrade that elevates everyday living with efficient, luxurious calm.
Upgrade your attic with R-30 performance—add Johns Manville kraft-faced batts to boost efficiency and comfort today.
Original: $117.55
-70%$117.55
$35.27Product Information
Product Information
Shipping & Returns
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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 Area | 88 sq ft |
| Length | 48 in |
| Width | 24 in |
| Thickness | 10.25 in |
| Faced/Unfaced | Kraft faced |
| Insulation Type | Fiberglass |
| Maximum R-Value | R-30 |
| Stud/Joist Spacing | 24 in |
| Pieces per Package | 11 |
| Package Type | Multi-pack |
| Package Weight | 36.7 lbs |
| R-Value per Inch | 2.9268 |
| Sound Barrier | Yes |
| Vapor Retardant | Yes |
| Formaldehyde Free | Yes |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Bag Dimensions (L x W x D) | 24.5 x 20 x 50 in |
| For Use in Attics | Yes |
| For Use in Ceilings | Yes |
| For Use in Floors | Yes |
| For Use in Walls | No |
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. It’s a smart, elegant upgrade that elevates everyday living with efficient, luxurious calm.
Upgrade your attic with R-30 performance—add Johns Manville kraft-faced batts to boost efficiency and comfort today.
