JM (Johns Manville) ComfortTherm R-19 Encapsulated Fiberglass Batt Insulation, 15 in x 93 in (87.18 sq ft)
Regular price $138.30R-19 Encapsulated Fiberglass Batt Insulation (15" x 93")
JM ComfortTherm R-19 encapsulated fiberglass batts are plastic-wrapped for a more comfortable install with less itch and dust. Designed for 2x6 wood-stud cavities, they add thermal efficiency, sound control, and built-in vapor retardance for moisture management.
Key Features:
- Comfort-Focused Encapsulation: Plastic-wrapped fiberglass helps reduce itch, dust, and mess during handling and installation.
- Built for 2x6 Wood Stud Walls: Sized for 15-in wide, 93-in long batts to fit standard 16-in on-center framing.
- Energy & Sound Performance: R-19 thermal resistance helps improve efficiency while also providing sound control.
- Moisture Management: Encapsulated facing acts as a vapor retardant for added moisture control.
- Cleaner Indoor Air Credentials: Formaldehyde-free and GREENGUARD Gold certified (listed), supporting indoor air quality goals.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | JM |
| Series Name | ComfortTherm |
| Insulation Type | Fiberglass |
| Insulation Form | Batt |
| R-Value | R-19 |
| R-Value per Inch | 2.923 |
| Thickness | 6.5 in |
| Width | 15 in |
| Length | 93 in |
| Coverage Area | 87.18 sq ft |
| Pieces per Package | 9 |
| Package Count | 9 |
| Total Package Quantity | 36 |
| Package Type | Multi-pack |
| Multi-Pack Quantity | 4 |
| Framing Type | Wood studs |
| Stud Spacing | 16 in |
| Fits 2 x 6 Walls | Yes |
| Fits 2 x 4 Walls | No |
| Faced/Unfaced | Encapsulated |
| Facing Type | Poly-Encapsulated |
| Vapor Retardant | Yes |
| Sound Barrier | Yes |
| Formaldehyde Free | Yes |
| ENERGY STAR Certified | Yes |
| For Use in Walls | Yes |
| For Use in Basements | Yes |
| For Use in Crawlspaces | Yes |
| For Use in Ceilings | No |
| For Use in Attics | No |
| For Use in Floors | No |
| For Use in Garage Doors | No |
| Flame Spread Index | <25 |
| Smoke Developed Index | <50 |
| Water Vapor Permeability | <0.5 perm-in |
| Water Vapor Sorption | <5 % |
| Bag Dimensions (L x W x D) | 15.5 x 20 x 49 |
| Package Weight | 22.4 lbs |
| Standards/Certifications | ASTM C665 Type II Class A Category 1 or 2; Energy Star Certified; Greenguard Gold Certified; IBC; Indoor Air Quality Certified; NAIMA 16 CFR Part 460; Recycled Content Certified; SCS Recycled Content certification; SCS Certified for home indoor air quality |
| Warranty | None |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: What wall cavity size is this insulation designed for?
A: It’s sized for 2x6 wood-stud framing with 16-in on-center spacing (15-in wide batts, 93-in length).
Q: Does the plastic wrap act as a vapor barrier?
A: Yes—this product is encapsulated and listed as having a vapor retardant for moisture control.
Q: How much area does one bag cover and how many batts are included?
A: One package covers 87.18 sq ft and includes 9 batts (pieces).
Q: Can it help with sound reduction?
A: Yes—this product is listed as providing sound control/sound barrier performance.
Q: Is it formaldehyde-free?
A: Yes—this ComfortTherm insulation is listed as formaldehyde-free.
A quieter, warmer envelope—wrapped in effortless ease
Think of this as the hidden layer of luxury: ComfortTherm’s encapsulated fiberglass slips into the bones of a room and immediately elevates how it feels—warmer, calmer, more composed. The plastic-wrapped finish is a design-minded detail in disguise, making installation cleaner with less itch and dust. Use it to refine bedrooms, offices, or media rooms where comfort and acoustics matter as much as aesthetics. It’s the kind of behind-the-walls upgrade that makes everyday living feel unmistakably elevated.
Upgrade your 2x6 walls with JM ComfortTherm R-19 batts for cleaner installation comfort, energy savings, and added sound control.
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