Johns Manville Multi-Purpose Unfaced Fiberglass Roll Insulation, 5.33-sq ft, 16-in W x 4-ft L, 2-in Thick (Individual Pack) - B777CT40
Unfaced Fiberglass Roll Insulation, 16-in x 4-ft
Compact, unfaced fiberglass roll designed for small insulation jobs in attics, walls, basements, and crawlspaces. Formaldehyde-free and GREENGUARD Gold certified, it helps improve energy efficiency and sound control. Ideal for filling gaps and adding to existing insulation.
Key Features:
- Multi-Purpose Use: Fits 16-in stud spacing; great for attics, basements, ceilings, crawlspaces, and walls
- Easy Installation: Simple press-in placement between studs; roll format for unobstructed spaces
- Health & Safety: Formaldehyde-free fiberglass; GREENGUARD Gold and SCS indoor air quality certifications
- Durable Composition: Will not rot, mildew, or corrode pipes, wiring, or metal studs
- Add-On Friendly: Unfaced design without vapor barrier allows layering over existing insulation
Specifications Table:
| Specification | Details |
|---|---|
| Series Name | Multi-Purpose |
| Coverage Area (Sq. Feet) | 5.33 |
| Length (Feet) | 4 |
| Width (Inches) | 16 |
| Thickness (Inches) | 2 |
| Faced/Unfaced | Unfaced |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| For Use in Attics | Yes |
| For Use in Basements | Yes |
| For Use in Ceilings | Yes |
| For Use in Crawlspaces | Yes |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Floors | 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 Walls | Yes |
| For Use in Windows | No |
| Formaldehyde Free | Yes |
| Framing Type | Steel studs |
| Insulation Type | Fiberglass |
| Maximum R-Value | 0 |
| R-Value per Inch | 0 |
| Reflective | No |
| Sound Barrier | No |
| Stud Spacing (Inches) | 16 |
| Package Count | 1 |
| Total Package Quantity | 1 |
| Package Type | Individual pack |
| Bag Dimensions (L x W x D) | 16 x 5 x 4.5 |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| UNSPSC | 30141500 |
Frequently Asked Questions (FAQ):
Q: What areas is this roll best suited for?
A: It’s designed for small projects and gap-filling in attics, basements, ceilings, crawlspaces, and walls with 16-in stud spacing.
Q: Does it include a vapor barrier?
A: No. It is unfaced (no vapor retarder), making it suitable for adding over existing insulation where a separate vapor control is not required.
Q: How do I install it?
A: Measure and cut as needed, then press the roll into place between 16-in studs. Use gloves, eyewear, and a utility knife for safety.
Q: Is it safe for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold certified for indoor air quality.
Q: What is the coverage and size?
A: Each pack covers 5.33 sq ft and measures 16 in wide by 4 ft long with a 2-in thickness.
A Clean, Quiet Layer for Cozy, Efficient Spaces
This slim fiberglass roll tucks neatly into stud bays, refining the envelope of a room for better comfort and quieter living. Its formaldehyde-free composition and unfaced simplicity keep the look clean and the air fresh. Style it as an invisible upgrade—pair with sealed gaps and thoughtful finishes to enhance performance without altering aesthetics. A subtle essential that elevates everyday luxury through efficiency.
Upgrade your home’s comfort and efficiency—add this easy-install Johns Manville fiberglass roll to your project today.
Original: $9.77
-70%$9.77
$2.93Product Information
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Description
Unfaced Fiberglass Roll Insulation, 16-in x 4-ft
Compact, unfaced fiberglass roll designed for small insulation jobs in attics, walls, basements, and crawlspaces. Formaldehyde-free and GREENGUARD Gold certified, it helps improve energy efficiency and sound control. Ideal for filling gaps and adding to existing insulation.
Key Features:
- Multi-Purpose Use: Fits 16-in stud spacing; great for attics, basements, ceilings, crawlspaces, and walls
- Easy Installation: Simple press-in placement between studs; roll format for unobstructed spaces
- Health & Safety: Formaldehyde-free fiberglass; GREENGUARD Gold and SCS indoor air quality certifications
- Durable Composition: Will not rot, mildew, or corrode pipes, wiring, or metal studs
- Add-On Friendly: Unfaced design without vapor barrier allows layering over existing insulation
Specifications Table:
| Specification | Details |
|---|---|
| Series Name | Multi-Purpose |
| Coverage Area (Sq. Feet) | 5.33 |
| Length (Feet) | 4 |
| Width (Inches) | 16 |
| Thickness (Inches) | 2 |
| Faced/Unfaced | Unfaced |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | No |
| For Use in Attics | Yes |
| For Use in Basements | Yes |
| For Use in Ceilings | Yes |
| For Use in Crawlspaces | Yes |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Floors | 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 Walls | Yes |
| For Use in Windows | No |
| Formaldehyde Free | Yes |
| Framing Type | Steel studs |
| Insulation Type | Fiberglass |
| Maximum R-Value | 0 |
| R-Value per Inch | 0 |
| Reflective | No |
| Sound Barrier | No |
| Stud Spacing (Inches) | 16 |
| Package Count | 1 |
| Total Package Quantity | 1 |
| Package Type | Individual pack |
| Bag Dimensions (L x W x D) | 16 x 5 x 4.5 |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| UNSPSC | 30141500 |
Frequently Asked Questions (FAQ):
Q: What areas is this roll best suited for?
A: It’s designed for small projects and gap-filling in attics, basements, ceilings, crawlspaces, and walls with 16-in stud spacing.
Q: Does it include a vapor barrier?
A: No. It is unfaced (no vapor retarder), making it suitable for adding over existing insulation where a separate vapor control is not required.
Q: How do I install it?
A: Measure and cut as needed, then press the roll into place between 16-in studs. Use gloves, eyewear, and a utility knife for safety.
Q: Is it safe for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold certified for indoor air quality.
Q: What is the coverage and size?
A: Each pack covers 5.33 sq ft and measures 16 in wide by 4 ft long with a 2-in thickness.
A Clean, Quiet Layer for Cozy, Efficient Spaces
This slim fiberglass roll tucks neatly into stud bays, refining the envelope of a room for better comfort and quieter living. Its formaldehyde-free composition and unfaced simplicity keep the look clean and the air fresh. Style it as an invisible upgrade—pair with sealed gaps and thoughtful finishes to enhance performance without altering aesthetics. A subtle essential that elevates everyday luxury through efficiency.
Upgrade your home’s comfort and efficiency—add this easy-install Johns Manville fiberglass roll to your project today.
