JM R-21 Unfaced Fiberglass Batt Insulation, 23 in x 93 in, 103.97 sq ft
R-21 Unfaced Fiberglass Wall Batt Insulation
JM R-21 unfaced fiberglass batts help reduce heat loss and improve comfort in 2x6 wood-stud wall cavities. Precut 23 in x 93 in batts are designed for 24 in on-center framing and provide 103.97 sq ft of coverage per pack.
Key Features:
- Thermal + Sound Performance: R-21 insulation helps manage heat flow and provides sound control in interior and exterior walls.
- Sized for 2x6 Walls: Precut 23 in x 93 in batts fit standard 24 in on-center wood framing for typical 8 ft wall applications.
- Simple Friction-Fit Install: Unfaced batts press into place between studs and can be added over existing insulation where appropriate.
- Formaldehyde-Free and Indoor Air Quality Certified: Formaldehyde-free product with GREENGUARD Gold certification listed.
- Durable, Noncorrosive Material: Fiberglass won’t rot, mildew, or deteriorate and is noncorrosive to pipes, wiring, and metal components.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | JM |
| Insulation Type | Fiberglass |
| Product Form | Batt |
| Faced/Unfaced | Unfaced |
| R-Value | R-21 |
| R-Value per Inch | 3.8182 |
| Thickness | 5.5 in |
| Width | 23 in |
| Length | 93 in |
| Coverage Area | 103.97 sq ft |
| Pack Quantity (Pieces) | 7 |
| Package Type | Individual pack |
| Total Package Quantity | 7 |
| Framing Type | Wood studs |
| Stud Spacing | 24 in on-center |
| Fits 2 x 6 Walls | Yes |
| Fits 2 x 4 Walls | No |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| Vapor Retardant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| SCS Recycled Content Certification | Yes |
| 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 |
| Bag Dimensions (L x W x D) | 23.5 x 20 x 49 |
| Package Weight | 44.44 lb |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: What wall framing does this insulation fit?
A: It’s sized for 2x6 walls with 24-inch on-center wood-stud framing (23-inch-wide batts).
Q: Does this product have a facing or vapor retarder?
A: No—this is unfaced insulation and it does not include a vapor retarder.
Q: How many pieces and how much area does a pack cover?
A: One pack contains 7 batts and covers 103.97 sq ft.
Q: Can it help with noise reduction?
A: Yes—this product is listed as a sound barrier and is intended to help control unwanted noise in wall assemblies.
Q: Is it certified for indoor air quality?
A: It is listed as formaldehyde-free and GREENGUARD Gold Certified.
Quiet Comfort, Seamlessly Built In
There’s a special kind of luxury that’s felt, not flaunted—rooms that hold warmth, soften sound, and instantly feel composed. These unfaced fiberglass batts tuck cleanly into 2x6 wall cavities, creating a calm, insulated envelope that lets your finishes shine. Use them to make bedrooms and media spaces feel more hushed and intentional, or to bring basement walls up to a more livable, refined comfort. It’s the invisible layer that elevates everyday living.
Upgrade your wall cavities with JM R-21 unfaced batts for a warmer, quieter home with an easy friction-fit installation.
Original: $88.73
-70%$88.73
$26.62Product Information
Product Information
Shipping & Returns
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Description
R-21 Unfaced Fiberglass Wall Batt Insulation
JM R-21 unfaced fiberglass batts help reduce heat loss and improve comfort in 2x6 wood-stud wall cavities. Precut 23 in x 93 in batts are designed for 24 in on-center framing and provide 103.97 sq ft of coverage per pack.
Key Features:
- Thermal + Sound Performance: R-21 insulation helps manage heat flow and provides sound control in interior and exterior walls.
- Sized for 2x6 Walls: Precut 23 in x 93 in batts fit standard 24 in on-center wood framing for typical 8 ft wall applications.
- Simple Friction-Fit Install: Unfaced batts press into place between studs and can be added over existing insulation where appropriate.
- Formaldehyde-Free and Indoor Air Quality Certified: Formaldehyde-free product with GREENGUARD Gold certification listed.
- Durable, Noncorrosive Material: Fiberglass won’t rot, mildew, or deteriorate and is noncorrosive to pipes, wiring, and metal components.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | JM |
| Insulation Type | Fiberglass |
| Product Form | Batt |
| Faced/Unfaced | Unfaced |
| R-Value | R-21 |
| R-Value per Inch | 3.8182 |
| Thickness | 5.5 in |
| Width | 23 in |
| Length | 93 in |
| Coverage Area | 103.97 sq ft |
| Pack Quantity (Pieces) | 7 |
| Package Type | Individual pack |
| Total Package Quantity | 7 |
| Framing Type | Wood studs |
| Stud Spacing | 24 in on-center |
| Fits 2 x 6 Walls | Yes |
| Fits 2 x 4 Walls | No |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| Vapor Retardant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| SCS Recycled Content Certification | Yes |
| 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 |
| Bag Dimensions (L x W x D) | 23.5 x 20 x 49 |
| Package Weight | 44.44 lb |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: What wall framing does this insulation fit?
A: It’s sized for 2x6 walls with 24-inch on-center wood-stud framing (23-inch-wide batts).
Q: Does this product have a facing or vapor retarder?
A: No—this is unfaced insulation and it does not include a vapor retarder.
Q: How many pieces and how much area does a pack cover?
A: One pack contains 7 batts and covers 103.97 sq ft.
Q: Can it help with noise reduction?
A: Yes—this product is listed as a sound barrier and is intended to help control unwanted noise in wall assemblies.
Q: Is it certified for indoor air quality?
A: It is listed as formaldehyde-free and GREENGUARD Gold Certified.
Quiet Comfort, Seamlessly Built In
There’s a special kind of luxury that’s felt, not flaunted—rooms that hold warmth, soften sound, and instantly feel composed. These unfaced fiberglass batts tuck cleanly into 2x6 wall cavities, creating a calm, insulated envelope that lets your finishes shine. Use them to make bedrooms and media spaces feel more hushed and intentional, or to bring basement walls up to a more livable, refined comfort. It’s the invisible layer that elevates everyday living.
Upgrade your wall cavities with JM R-21 unfaced batts for a warmer, quieter home with an easy friction-fit installation.
