SKU: 29853358938

Johns Manville Multi-Purpose Unfaced Fiberglass Roll Insulation, 5.33-sq ft, 16-in W x 4-ft L, 2-in Thick, Multi-pack

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Description

Johns Manville Multi-Purpose Unfaced Fiberglass Roll Insulation, 5.33-sq ft, 16-in W x 4-ft L, 2-in Thick, Multi-packMulti 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

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 barrier—can 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: It’s 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 home’s comfort and efficiency today with this easy-fit Johns Manville multi-purpose roll insulation.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29853358938

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4.1 ★★★★★
Based on 8 reviews
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A
Verified Purchase
Andrea C
Lake Worth, US
★★★★★ 5
Great little jewelry box!
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
Great little jewelry box for quick vacations! Lots of compartments so my jewelry doesn't get lost or tangled! Love the pouch for bracelets, the hooks for my necklaces, the little board with holes for my earrings and the slots for my rings. Made really well and pretty also! Would make a Nice gift!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
S
Verified Purchase
Sabrina Luna
Phoenix, US
★★★★★ 5
Necessary for travel
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Purple
This is really cute and looks classy. Quality is very nice. The only thing is the hooks for the necklaces didn’t keep them on, but everything else about this is a must for traveling and not losing or tangling up your jewelry.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
A
Verified Purchase
Alyssa McBride
New York, US
★★★★★ 5
LOVE IT!
Size: Large (8.2"W*4.2"D*2.4"H), Color: Beige
I love it. It’s very pretty and simple, in a good way. I plan to use it for all my jewelry and not just for travel. I like that it has a lot of hooks for necklaces and plenty of space for earring and rings. The fabric inside and out seem to be good quality. It’s well made and zips easily. The structure is sturdy as well. The color (white) is just as depicted. I think I got the larger size but it doesn’t feel bulky at all. I like that it comes with an extra pouch for bulkier items. It’s one of the best jewelry boxes I’ve had!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 4
Nice little travel solution for jewelry
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Pink
Cute travel box for my jewelry. The necklace hangers aren’t all that snug, causing my necklaces to fall and tangle some. But otherwise, works as expected.
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Reviewed in the United States on March 19, 2026
B
Verified Purchase
Brenda
Carnegie, US
★★★★★ 5
would buy again
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
Love this jewelry case. perfect size for travel and at a good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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