JM R-13 Unfaced Fiberglass Batt Insulation, 23 in W x 93 in L, 163.94 sq ft
Regular price $96.50R-13 Unfaced Fiberglass Batt Insulation (23 in x 93 in)
JM R-13 unfaced fiberglass batt insulation is designed for 2x4 wall cavities to help improve thermal performance and reduce sound transmission. Pre-cut batts fit standard 24-in on-center stud spacing and can be added over existing insulation where no vapor barrier is needed.
Key Features:
- Designed for 2x4 Walls: Sized for wood-stud wall cavities, including standard 24-in on-center framing.
- Unfaced for Flexibility: No vapor retarder—ideal for adding to existing insulation or where a separate vapor barrier is used.
- Thermal + Sound Control: Helps improve energy efficiency while also reducing sound transfer through walls.
- Easy to Install: Pre-cut batts press-fit between studs for straightforward placement.
- Formaldehyde-Free & Certified: Formaldehyde-free product with ENERGY STAR and GREENGUARD Gold certifications.
Specifications Table:
| Specification | Details |
|---|---|
| Insulation Type | Fiberglass |
| Maximum R-Value | 13 |
| R-Value per Inch | 3.7143 |
| Faced/Unfaced | Unfaced |
| Vapor Retardant | No |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Coverage Area (Sq. Feet) | 163.39 |
| Width (Inches) | 23 |
| Length (Inches) | 93 |
| Thickness (Inches) | 3.5 |
| Stud Spacing (Inches) | 24 |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| Framing Type | Wood studs |
| For Use in Walls | Yes |
| For Use in Basements | Yes |
| For Use in Crawlspaces | No |
| For Use in Ceilings | No |
| For Use in Attics | 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 |
| Package Type | Multi-pack |
| Total Package Quantity | 44 |
| Package Count | 11 |
| Multi-Pack Quantity | 4 |
| Bag Dimensions (L x W x D) | 20 x 20 x 50 |
| Package Weight (lbs.) | 41.9 |
| CA Residents: Prop 65 Warning(s) | No |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: What wall size is this insulation made for?
A: It’s intended for 2x4 wall cavities and is sized for 24-in on-center wood-stud framing.
Q: Does unfaced insulation include a vapor barrier?
A: No. Unfaced batts do not include a vapor retarder, so vapor control (if needed) must be handled separately per local code and assembly design.
Q: Can it be added over existing insulation?
A: Yes—unfaced fiberglass batts can be added to existing insulation where appropriate.
Q: How do I install these batts?
A: They’re pre-cut and typically installed by pressing the batts into place between studs; cutting can be done with a utility knife as needed.
Q: Is it suitable for basements and walls?
A: Yes—this product is listed for use in walls and basements.
Quiet comfort, beautifully built into the bones of your home
There’s a certain luxury in a room that feels serene—temperature held steady, sound softened, the whole space calmer by design. These R-13 unfaced fiberglass batts tuck neatly into 2x4 walls, creating an invisible layer of comfort that lets finishes and furnishings shine. I love the clean versatility of unfaced insulation—perfect when you want control over the full assembly, especially in renovated walls. Consider it the understated foundation that makes everyday living feel effortlessly refined.
Upgrade your walls with JM R-13 unfaced batts for a simpler install and a more comfortable, quieter home.
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