Johns Manville R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft Coverage, 15-in W x 32-ft L (B1284)
R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft
Johns Manville R-13 kraft-faced fiberglass roll insulation is designed for 2x4 wood-stud walls, delivering thermal performance and sound control with an integrated vapor retarder. Each 15-in x 32-ft roll covers 40 sq ft and is formaldehyde-free for improved indoor air quality.
Key Features:
- Built-In Vapor Retarder: Kraft facing provides moisture control in exterior wall cavities.
- Energy & Sound Performance: R-13 thermal rating with sound-dampening properties for quieter rooms.
- Sized for 2x4 Walls: 15-in width fits 16-in on-center wood studs; 32-ft roll for long runs.
- Easy Installation: Press in place and staple flanges where needed; noncorrosive to pipes and wiring.
- Health & Sustainability: Formaldehyde-free fiberglass, GREENGUARD Gold and SCS certified.
Specifications Table:
| Specification | Details |
|---|---|
| Insulation Type | Fiberglass |
| Faced/Unfaced | Kraft faced |
| R-Value | 13 |
| R-Value per Inch | 3.7143 |
| Coverage Area | 40 sq ft |
| Width | 15 in |
| Length | 32 ft |
| Thickness | 3.5 in |
| Framing Type | Wood studs |
| Stud Spacing | 16 in on center |
| Formaldehyde Free | Yes |
| Sound Barrier | Yes |
| Vapor Retardant | Yes |
| ENERGY STAR Certified | Yes (Seal and Insulate partner) |
| GREENGUARD Gold Certified | Yes |
| SCS Recycled Content | Certified |
| For Use in Walls | Yes |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| Package Type | Individual pack |
| Total Package Quantity | 1 |
| Package Count | 1 |
| Package Weight | 9.91 lb |
| Bag Dimensions (L x W x D) | 15.5 x 19 x 27 in |
| Warranty | 1-year limited |
| Reflective | No |
| CA Prop 65 Warning | No |
| UNSPSC | 30141500 |
| For Use in Attics | No |
| For Use in Ceilings | No |
| For Use in Floors | No |
| For Use in Crawlspaces | No |
| For Use in Basements | 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 |
Frequently Asked Questions (FAQ):
Q: What wall framing is this roll designed for?
A: It’s sized for 2x4 wood-stud walls with 16-in on-center spacing and a 3.5-in thickness.
Q: How much area does one roll cover?
A: Each roll covers 40 square feet (15-in W x 32-ft L).
Q: Does it control moisture?
A: Yes, the kraft facing acts as a vapor retarder to help manage moisture in concealed applications.
Q: Is this insulation safe for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold/SCS certified.
Q: Can I install it myself?
A: Yes. Press the roll between studs and staple the tabs if additional securement is needed.
Quiet Comfort, Seamlessly Wrapped
This kraft-faced insulation cocoons your walls in a soft hush, elevating comfort while keeping lines clean and concealed. I love the warm, natural kraft facing—it tucks neatly into 2x4 bays for a tailored fit. Pair it with crisp drywall and matte black hardware to craft a serene, gallery-like backdrop. It’s a discreet essential for refined, luxurious living that feels as good as it looks.
Upgrade your 2x4 walls with JM R-13 kraft-faced rolls today for quieter, more efficient comfort in every room.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft
Johns Manville R-13 kraft-faced fiberglass roll insulation is designed for 2x4 wood-stud walls, delivering thermal performance and sound control with an integrated vapor retarder. Each 15-in x 32-ft roll covers 40 sq ft and is formaldehyde-free for improved indoor air quality.
Key Features:
- Built-In Vapor Retarder: Kraft facing provides moisture control in exterior wall cavities.
- Energy & Sound Performance: R-13 thermal rating with sound-dampening properties for quieter rooms.
- Sized for 2x4 Walls: 15-in width fits 16-in on-center wood studs; 32-ft roll for long runs.
- Easy Installation: Press in place and staple flanges where needed; noncorrosive to pipes and wiring.
- Health & Sustainability: Formaldehyde-free fiberglass, GREENGUARD Gold and SCS certified.
Specifications Table:
| Specification | Details |
|---|---|
| Insulation Type | Fiberglass |
| Faced/Unfaced | Kraft faced |
| R-Value | 13 |
| R-Value per Inch | 3.7143 |
| Coverage Area | 40 sq ft |
| Width | 15 in |
| Length | 32 ft |
| Thickness | 3.5 in |
| Framing Type | Wood studs |
| Stud Spacing | 16 in on center |
| Formaldehyde Free | Yes |
| Sound Barrier | Yes |
| Vapor Retardant | Yes |
| ENERGY STAR Certified | Yes (Seal and Insulate partner) |
| GREENGUARD Gold Certified | Yes |
| SCS Recycled Content | Certified |
| For Use in Walls | Yes |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| Package Type | Individual pack |
| Total Package Quantity | 1 |
| Package Count | 1 |
| Package Weight | 9.91 lb |
| Bag Dimensions (L x W x D) | 15.5 x 19 x 27 in |
| Warranty | 1-year limited |
| Reflective | No |
| CA Prop 65 Warning | No |
| UNSPSC | 30141500 |
| For Use in Attics | No |
| For Use in Ceilings | No |
| For Use in Floors | No |
| For Use in Crawlspaces | No |
| For Use in Basements | 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 |
Frequently Asked Questions (FAQ):
Q: What wall framing is this roll designed for?
A: It’s sized for 2x4 wood-stud walls with 16-in on-center spacing and a 3.5-in thickness.
Q: How much area does one roll cover?
A: Each roll covers 40 square feet (15-in W x 32-ft L).
Q: Does it control moisture?
A: Yes, the kraft facing acts as a vapor retarder to help manage moisture in concealed applications.
Q: Is this insulation safe for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold/SCS certified.
Q: Can I install it myself?
A: Yes. Press the roll between studs and staple the tabs if additional securement is needed.
Quiet Comfort, Seamlessly Wrapped
This kraft-faced insulation cocoons your walls in a soft hush, elevating comfort while keeping lines clean and concealed. I love the warm, natural kraft facing—it tucks neatly into 2x4 bays for a tailored fit. Pair it with crisp drywall and matte black hardware to craft a serene, gallery-like backdrop. It’s a discreet essential for refined, luxurious living that feels as good as it looks.
Upgrade your 2x4 walls with JM R-13 kraft-faced rolls today for quieter, more efficient comfort in every room.
