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.

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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

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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

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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.

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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.

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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.

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Q: Is it safe for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold certified for indoor air quality.

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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.

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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.

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Upgrade your home’s comfort and efficiency—add this easy-install Johns Manville fiberglass roll to your project today.