Johns Manville R-38 Kraft-Faced Fiberglass Batt Insulation, 24-in W x 48-in L, 72-sq ft (9-Pack)
Regular price $518.11R-38 Kraft-Faced Fiberglass Batt Insulation (72-sq ft)
This kraft-faced fiberglass batt insulation delivers R-38 thermal performance with a built-in vapor retarder to help manage moisture in attics, ceilings, and floors. Pre-cut 24-in x 48-in batts fit 24-in on-center framing for easier installation while also helping reduce sound transmission.
Key Features:
- High R-Value Performance: R-38 batts help reduce heat loss and improve overall energy efficiency.
- Built-In Vapor Retarder: Kraft facing provides moisture control for wood-framed attics, ceilings, and floors.
- Made for 24-in O.C. Framing: Pre-cut 24-in x 48-in batts are designed to press-fit between standard 24-in on-center joists.
- Sound Control: Fiberglass batts provide sound-dampening benefits to help reduce noise transfer.
- Durable, Noncorrosive Material: Won’t rot, mildew, or deteriorate; noncorrosive to pipes, wiring, and metal studs.
Specifications Table:
| Specification | Details |
|---|---|
| Insulation Type | Fiberglass |
| Maximum R-Value | 38 |
| R-Value per Inch | 3.1667 |
| Faced/Unfaced | Kraft faced |
| Vapor Retardant | Yes |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| GREENGUARD Gold Certified | Yes |
| ENERGY STAR Certified | No |
| Coverage Area (Sq. Feet) | 72 |
| Width (Inches) | 24 |
| Length (Inches) | 48 |
| Thickness (Inches) | 12 |
| Stud Spacing (Inches) | 24 |
| Package Type | Individual pack |
| Total Package Quantity | 9 |
| Package Count | 9 |
| Package Weight (lbs.) | 39.23 |
| Bag Dimensions (L x W x D) | 24.5 x 20 x 49 |
| For Use in Attics | Yes |
| For Use in Ceilings | Yes |
| For Use in Floors | Yes |
| For Use in Walls | No |
| For Use in Basements | 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 |
| Fits 2 x 4 Walls | No |
| Fits 2 x 6 Walls | No |
| CA Residents: Prop 65 Warning(s) | No |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: Where can this batt insulation be used?
A: It’s intended for wood-framed attics, ceilings, and floors (not for walls, basements, or crawlspaces per listed use cases).
Q: Does the kraft facing act as a vapor barrier?
A: Yes—this product is kraft-faced and lists a vapor retardant for moisture control.
Q: Will it fit 24-in on-center framing?
A: Yes—batts are 24 in wide and pre-cut to 48 in length for 24-in on-center joist spacing.
Q: How is it installed?
A: Press-fit between framing members; staple facing tabs to joists if additional securement is needed.
Q: Is it formaldehyde-free and does it offer indoor air quality certifications?
A: It is listed as formaldehyde free and GREENGUARD Gold Certified.
Quiet warmth, beautifully considered.
There’s a kind of luxury that’s felt, not seen—spaces that hold warmth effortlessly and hush the noise of the world. These kraft-faced R-38 fiberglass batts bring that invisible polish, pairing serious thermal performance with a built-in vapor retarder for thoughtful moisture control. Tuck them into 24-in on-center attic, ceiling, or floor cavities to create a calmer, more comfortable envelope throughout the home. It’s the foundational layer that makes every finish above it feel more intentional—true comfort, elevated.
Upgrade your home’s comfort and quiet with R-38 kraft-faced batts sized for fast installation in 24-in on-center framing.
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