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Boost comfort and efficiency with Johns Manville R-11 unfaced fiberglass batts designed for 2x4 wood-stud walls. Pre-cut for 9-ft walls with 16-in stud spacing, they provide thermal performance and sound control without a vapor barrier.
| Specification | Details |
|---|---|
| Coverage Area (Sq. Feet) | 175 |
| Length (Inches) | 105 |
| Width (Inches) | 15 |
| Thickness (Inches) | 3.5 |
| Faced/Unfaced | Unfaced |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| 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 Doors | No |
| For Use in Floors | No |
| For Use in Garage Doors | No |
| For Use in Masonry | No |
| For Use in Windows | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Plumbing | No |
| For Use in Vents | No |
| Formaldehyde Free | Yes |
| Framing Type | Wood studs |
| Insulation Type | Fiberglass |
| Maximum R-Value | 11 |
| R-Value per Inch | 3.1429 |
| Sound Barrier | Yes |
| Stud Spacing (Inches) | 16 |
| Vapor Retardant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Package Weight (lbs.) | 27.3 |
| Package Type | Multi-pack |
| Multi-Pack Quantity | 5 |
| Package Count | 16 |
| Total Package Quantity | 80 |
| Bag Dimensions (L x W x D) | 20 x 20 x 50 |
| UNSPSC | 11162400 |
Q: How much area does this package cover?
A: 175 square feet total coverage.
Q: What wall framing is it designed for?
A: Pre-cut for 2x4 wood-stud walls with 16-in on-center spacing and 9-ft height.
Q: Does it include a vapor barrier?
A: No. These are unfaced batts and do not have a vapor retarder.
Q: Can it be used in basements?
A: Yes, it is suitable for basements when local codes and moisture control practices are followed.
Q: What are the dimensions of each batt?
A: 15 inches wide, 105 inches long, and 3.5 inches thick.
These R‑11 fiberglass batts slip into 2x4 stud bays with effortless precision, bringing a hush and a steady, cozy climate to living spaces. The unfaced profile keeps the look streamlined while enhancing acoustic softness—perfect behind artful drywall and millwork. Pair them with crisp, painted finishes and natural textures to create rooms that feel serene and thoughtfully insulated. A smart essential for refined, luxurious home comfort.
Upgrade your walls with Johns Manville R-11 batts today for easier installs, quieter rooms, and efficient year-round comfort.
Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
US$40
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