Multi-Purpose Unfaced Fiberglass Roll Insulation, 16-in x 4-ft
Unfaced fiberglass roll insulation from Johns Manville for small projects and gap-filling in attics, basements, crawlspaces, ceilings and walls. Sized for 16-in on-center framing, this formaldehyde-free roll helps improve energy efficiency and sound control.
Key Features:
- Multi-Purpose Use: Ideal for attics, basements, crawlspaces, ceilings and walls; great for filling gaps
- Easy Fit: 16-in width sized for 16-in on-center stud spacing; simple press-in installation
- Unfaced Design: No vapor barriercan be added over existing insulation for extra coverage
- Health & Safety: Formaldehyde-free fiberglass; GREENGUARD Gold and SCS certified for indoor air quality
- Durable Performance: Will not rot, mildew or deteriorate; noncorrosive to pipes, wiring and metal studs
Specifications Table:
| Specification | Details |
| Series Name | Multi-Purpose |
| Bag Dimensions (L x W x D) | 16 x 5 x 4.5 in |
| Coverage Area (Sq. Feet) | 5.33 |
| Length (Feet) | 4 |
| Thickness (Inches) | 2 |
| Width (Inches) | 16 |
| 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 |
| Package Count | 40 |
| Package Type | Multi-pack |
| R-Value per Inch | 0 |
| Reflective | No |
| Sound Barrier | No |
| Stud Spacing (Inches) | 16 |
| Total Package Quantity | 40 |
| Vapor Retardant | No |
| CA Residents: Prop 65 Warning(s) | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| UNSPSC | 30141500 |
Frequently Asked Questions (FAQ):
Q: Can this be used with existing insulation?
A: Yes. As an unfaced roll, it can be added on top of existing insulation where no vapor barrier is needed.
Q: What framing does it fit?
A: Its designed for 16-in on-center stud spacing and fits 2x4 walls.
Q: Is a vapor barrier included?
A: No. This product is unfaced and does not include a vapor barrier.
Q: Where can I install it?
A: Suitable for attics, basements, crawlspaces, ceilings and walls; not intended for floors, doors, or windows.
Q: Is it formaldehyde-free and certified?
A: Yes. It is formaldehyde-free and GREENGUARD Gold and SCS certified for indoor air quality.
Quiet, Cozy Comfort in a Clean, Minimal Roll
This slim, unfaced fiberglass roll brings understated utility to spaces that crave calm and comfort. Its 16-inch width slips neatly between studs, perfect for quick upgrades without visual clutter. Layer in attics or basements to soften acoustics and stabilize temperatures, then finish with crisp drywall for a polished envelope. A small yet essential touch that elevates everyday living with efficient, healthy insulation.
Upgrade your homes comfort and efficiency today with this easy-fit Johns Manville multi-purpose roll insulation.
