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Johns Manville (JM) ComfortTherm R-19 Encapsulated Fiberglass Batt Insulation, 23 in x 93 in, 133.68 sq ft

Johns Manville (JM) ComfortTherm R-19 Encapsulated Fiberglass Batt Insulation, 23 in x 93 in, 133.68 sq ft

R-19 Encapsulated Fiberglass Batt Insulation (23" x 93")

Johns Manville ComfortTherm poly-encapsulated fiberglass batts deliver R-19 thermal performance with built-in vapor control and added sound reduction. The plastic wrap helps reduce itch and dust for a cleaner, more comfortable installation in standard wall cavities and other eligible applications.


Key Features:

  • Cleaner Install: Poly-encapsulated plastic wrap helps reduce itch and dust during handling and installation.
  • Moisture Control: Encapsulated facing provides a built-in vapor retardant for added moisture management.
  • Energy + Comfort: R-19 thermal resistance helps improve energy efficiency and indoor comfort.
  • Sound Dampening: Helps reduce sound transmission through wall assemblies.
  • Durable Inorganic Fibers: Won’t rot, mildew, or deteriorate and is noncorrosive to pipes, wiring, and metal studs.

Specifications Table:

Specification Details
Brand JM
Series Name ComfortTherm
Category Batt Insulation
Insulation Type Fiberglass
Faced/Unfaced Encapsulated
Maximum R-Value 19
R-Value per Inch 2.923
Width (Inches) 23
Length (Inches) 93
Thickness (Inches) 6.5
Coverage Area (Sq. Feet) 133.68
Package Weight (lbs.) 33.9
Package Type Multi-pack
Package Count 9
Total Package Quantity 36
Multi-Pack Quantity 4
Stud Spacing (Inches) 24
Framing Type Wood studs
Fits 2 x 6 Walls Yes
Fits 2 x 4 Walls No
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 Attics No
For Use in Ceilings 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
Bag Dimensions (L x W x D) 23.5 x 20 x 49
CA Residents: Prop 65 Warning(s) No
Warranty None
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: What stud spacing and wall size is this insulation designed for?
A: These batts are sized for 24-in on-center stud spacing and are pre-cut for standard 8-ft wall cavities (93-in length).


Q: Is this a faced insulation, and does it act as a vapor retarder?
A: Yes. It is encapsulated and includes a vapor retardant for moisture control.


Q: Where can I use this R-19 batt insulation?
A: It is intended for 2x6 wood-framed walls and can also be used where specified for floors and crawlspaces; confirm local code requirements for your application.


Q: Is it formaldehyde-free?
A: Yes, it is listed as formaldehyde-free.


Q: How much area does one package cover?
A: One package covers 133.68 square feet.


Quiet luxury starts inside the walls

ComfortTherm is the kind of invisible upgrade that makes a room feel instantly more refined—warmer, quieter, and effortlessly composed. Its clean, poly-encapsulated wrap elevates the installation experience, keeping things tidy while delivering serious thermal and acoustical performance. Use it to cocoon bedrooms, nurseries, or a home office for a calm, gallery-like hush. It’s a foundational layer that turns everyday spaces into true sanctuaries of comfort.


Upgrade your walls with JM ComfortTherm R-19 batts for cleaner installation, better comfort, and quieter rooms.

$86.52
Johns Manville (JM) ComfortTherm R-19 Encapsulated Fiberglass Batt Insulation, 23 in x 93 in, 133.68 sq ft
$86.52

Product Information

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Description

R-19 Encapsulated Fiberglass Batt Insulation (23" x 93")

Johns Manville ComfortTherm poly-encapsulated fiberglass batts deliver R-19 thermal performance with built-in vapor control and added sound reduction. The plastic wrap helps reduce itch and dust for a cleaner, more comfortable installation in standard wall cavities and other eligible applications.


Key Features:

  • Cleaner Install: Poly-encapsulated plastic wrap helps reduce itch and dust during handling and installation.
  • Moisture Control: Encapsulated facing provides a built-in vapor retardant for added moisture management.
  • Energy + Comfort: R-19 thermal resistance helps improve energy efficiency and indoor comfort.
  • Sound Dampening: Helps reduce sound transmission through wall assemblies.
  • Durable Inorganic Fibers: Won’t rot, mildew, or deteriorate and is noncorrosive to pipes, wiring, and metal studs.

Specifications Table:

Specification Details
Brand JM
Series Name ComfortTherm
Category Batt Insulation
Insulation Type Fiberglass
Faced/Unfaced Encapsulated
Maximum R-Value 19
R-Value per Inch 2.923
Width (Inches) 23
Length (Inches) 93
Thickness (Inches) 6.5
Coverage Area (Sq. Feet) 133.68
Package Weight (lbs.) 33.9
Package Type Multi-pack
Package Count 9
Total Package Quantity 36
Multi-Pack Quantity 4
Stud Spacing (Inches) 24
Framing Type Wood studs
Fits 2 x 6 Walls Yes
Fits 2 x 4 Walls No
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 Attics No
For Use in Ceilings 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
Bag Dimensions (L x W x D) 23.5 x 20 x 49
CA Residents: Prop 65 Warning(s) No
Warranty None
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: What stud spacing and wall size is this insulation designed for?
A: These batts are sized for 24-in on-center stud spacing and are pre-cut for standard 8-ft wall cavities (93-in length).


Q: Is this a faced insulation, and does it act as a vapor retarder?
A: Yes. It is encapsulated and includes a vapor retardant for moisture control.


Q: Where can I use this R-19 batt insulation?
A: It is intended for 2x6 wood-framed walls and can also be used where specified for floors and crawlspaces; confirm local code requirements for your application.


Q: Is it formaldehyde-free?
A: Yes, it is listed as formaldehyde-free.


Q: How much area does one package cover?
A: One package covers 133.68 square feet.


Quiet luxury starts inside the walls

ComfortTherm is the kind of invisible upgrade that makes a room feel instantly more refined—warmer, quieter, and effortlessly composed. Its clean, poly-encapsulated wrap elevates the installation experience, keeping things tidy while delivering serious thermal and acoustical performance. Use it to cocoon bedrooms, nurseries, or a home office for a calm, gallery-like hush. It’s a foundational layer that turns everyday spaces into true sanctuaries of comfort.


Upgrade your walls with JM ComfortTherm R-19 batts for cleaner installation, better comfort, and quieter rooms.

Johns Manville (JM) ComfortTherm R-19 Encapsulated Fiberglass Batt Insulation, 23 in x 93 in, 133.68 sq ft | Super Arbor