R-15 Kraft-Faced Fiberglass Wall Batt Insulation
Johns Manville R-15 Kraft-faced fiberglass batts deliver thermal performance and sound control for 2x4 wood-stud walls. Pre-cut 15-in x 93-in batts cover 67.81 sq ft and include a kraft vapor retarder to help manage moisture while improving energy efficiency.
Key Features:
- Designed for 2x4 Walls: Pre-cut 15-in x 93-in batts fit 16-in OC stud spacing for standard 8-ft walls
- Thermal Performance: R-15 fiberglass helps improve energy efficiency and comfort
- Built-In Vapor Retarder: Kraft facing provides moisture control with staple tabs for secure installation
- Acoustic Benefit: Helps reduce sound transmission through interior partitions
- Clean, Durable Material: Formaldehyde-free, will not rot, mildew, or corrode pipes and wiring
Specifications Table:
| Specification | Details |
| Coverage Area | 67.81 sq ft |
| Dimensions (per batt) | 15 in W x 93 in L |
| Thickness | 3.5 in |
| Faced/Unfaced | Kraft faced |
| Insulation Type | Fiberglass |
| R-Value | 15 |
| R-Value per Inch | 4.2857 |
| Stud Spacing | 16 in OC |
| Framing Type | Wood studs |
| For Use in Walls | Yes |
| For Use in Basements | Yes |
| For Use in Attics | No |
| For Use in Ceilings | No |
| For Use in Crawlspaces | No |
| For Use in Floors | 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 |
| Formaldehyde Free | Yes |
| Sound Barrier | Yes |
| Vapor Retardant | Yes (kraft) |
| ENERGY STAR Certified | Yes (program partner) |
| GREENGUARD Gold Certified | Yes |
| SCS Recycled Content | Certified |
| Warranty | 1-year limited |
| Package Type | Multi-pack |
| Package Count | 7 pieces |
| Total Package Quantity | 35 |
| Multi-Pack Quantity | 5 |
| Bag Dimensions (L x W x D) | 20 x 20 x 50 |
| UNSPSC | 11162400 |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| Maximum R-Value | 15 |
| Weight | 32.4 lb |
Frequently Asked Questions (FAQ):
Q: How much area does one package cover?
A: One package covers 67.81 square feet.
Q: Is this insulation faced?
A: Yes, it is kraft-faced and includes a built-in vapor retarder.
Q: What wall framing is it designed for?
A: Its designed for 2x4 wood-stud walls with 16-in on-center spacing.
Q: Can it be used in basements or ceilings?
A: Its suitable for basements and walls; it is not intended for attics or ceilings per the listed specifications.
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.
Quiet, Cozy Walls with a Clean, Crafted Finish
These kraft-faced batts slip into 2x4 walls like a tailored suit, instantly softening acoustics and sealing in comfort. The warm, paper-faced surface offers a tidy, purposeful look during install while the R-15 core does the heavy lifting behind the scenes. Pair it with crisp drywall and matte black hardware for a refined, modern envelope. Its a smart, quiet luxury that elevates everyday living.
Upgrade your wall cavities with JM R-15 batts today for a quieter, more energy-efficient home.
