SKU: 64676239078

Johns Manville R-30 Unfaced Fiberglass Batt Attic Insulation, 58.66-sq ft Coverage (16-in W x 48-in L)

Sale price$67.16 Regular price$74.62
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Description

Johns Manville R-30 Unfaced Fiberglass Batt Attic Insulation, 58.66-sq ft Coverage (16-in W x 48-in L)R 30 Unfaced Fiberglass Batt Attic Insulation Formaldehyde free fiberglass batts designed for attics deliver R 30 thermal performance with sound control. Precut to fit 16 in on center wood stud cavities, each bag covers 58. 66 sq ft for efficient energy upgrades. Key Features: High R Value Performance: R 30 thermal insulation helps reduce energy costs and improve comfort Unfaced Design: No vapor barrierideal for adding over existing insulation layers

R-30 Unfaced Fiberglass Batt Attic Insulation

Formaldehyde-free fiberglass batts designed for attics deliver R-30 thermal performance with sound control. Precut to fit 16-in on-center wood stud cavities, each bag covers 58.66 sq ft for efficient energy upgrades.


Key Features:

  • High R-Value Performance: R-30 thermal insulation helps reduce energy costs and improve comfort
  • Unfaced Design: No vapor barrier—ideal for adding over existing insulation layers
  • Precut for Easy Fit: 16-in x 48-in batts press in place between joists for quick installation
  • Durable, Safe Material: Fiberglass won’t rot or corrode; formaldehyde-free and GREENGUARD Gold Certified
  • Sound Control: Helps dampen noise in attics and living spaces

Specifications Table:

Specification Details
Coverage Area (Sq. Feet) 58.66
Length (Inches) 48
Width (Inches) 16
Thickness (Inches) 10.25
Faced/Unfaced Unfaced
For Use in Attics Yes
For Use in Basements Yes
For Use in Ceilings Yes
For Use in Floors Yes
For Use in Crawlspaces No
For Use in Walls 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
Formaldehyde Free Yes
Framing Type Wood studs
Insulation Type Fiberglass
Maximum R-Value 30
R-Value per Inch 2.9268
Sound Barrier Yes
Stud Spacing (Inches) 16
Vapor Retardant No
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
Warranty 1-year limited
Package Weight (lbs.) 22.8
Bag Dimensions (L x W x D) 16.5 x 20 x 50
Package Type Multi-pack
Package Count 11
Multi-Pack Quantity 4
Total Package Quantity 44
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: How much area does one bag cover?
A: One bag covers 58.66 square feet with 11 precut pieces sized 16 in x 48 in.


Q: Can I install this over existing insulation?
A: Yes. As an unfaced batt without a vapor barrier, it can be layered over existing insulation where appropriate.


Q: What framing does it fit?
A: Designed for 16-in on-center wood stud or joist spacing in attics and ceilings.


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


Q: Where can it be used?
A: For use in attics, ceilings, basements, and floors; not intended for walls or crawlspaces.


A quiet, cozy attic upgrade with effortless precision

These pristine, unfaced batts slip neatly between joists, instantly dialing up comfort while softening household noise. The generous 10.25-in loft and R-30 rating create a plush thermal blanket that feels tailor-made for 16-inch spacing. Layer them to build a serene envelope above bedrooms, then finish with clean access panels for a refined look. It’s a simple, luxe step toward a calmer, more efficient home.


Upgrade your attic with R-30 comfort—add Johns Manville batts to boost efficiency and quiet today.

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]
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SKU: 64676239078

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4.2 ★★★★★
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Product Reviews
J
Verified Purchase
JB
Chelsea, US
★★★★★ 5
love love love!!
Format: Kindle
Unwanted is the perfect hurt/comfort romance read. I LOVE an OV romance where the beta is the center of the story and Song delivers a heartfelt story of a single mom to 2, burned by her alpha-hole ex starting her life over in the small town of Knotty Pines. Reid and Finn are an alpha/omega pair who’ve been together since they scent matched as teenagers, they’ve always known someone was missing in their lives and they’ll stop at nothing to prove to Cammie that her, Em & Ben are everything they always wanted. I couldn’t put this one down - Song tugs at your heart strings, and gives you vulnerable, real and lovable characters with depth and relatability. The book is so well paced, detailed to perfection without overdoing it or straying, I really honestly loved the flow and details in this story and the banter and humor had me smiling throughout this read. This was the perfect hurt/comfort, who did this to you, fated mates, stop at nothing to get the girl romance that I’ll be recommending for the foreseeable future!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2024
M
Verified Purchase
M
Pawtucket, US
★★★★★ 4
Oh this was adorable and cozy and spicy
Format: Kindle
Oh this was adorable and cozy and spicy and I had so much fun with this book! The relationship between Cammie, Finn and Reid is good. I love how doting both men are of her and her kids, always providing them with a safe space to be themselves. They were patient with Ben and I loved seeing that represented in this book. The plot was done well and it was well paced with quiet, family moments as well as drama to keep us on our toes. I do wish we'd gotten more moments just between Finn and Reid to showcase their strong relationship (they've been together for two decades!) and while we got something, both men were first and foremost focused on Cammie. It makes sense why this was, there was a lot of hurt that needed to be soothed and I'm glad she is treated like the queen she is, but I did yearn for more of the alpha-omega couple.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
K
Verified Purchase
kindleafterdark
Bozeman, US
★★★★★ 5
A Beta’s Dream!
Format: Kindle
I loved this book!! Unwanted follows Cammie, a single mom and Beta, working two jobs, trying her best to raise a son and daughter since her a$$hole ex Alpha kicked them out after meeting his scent match. Being a Beta from the wrong side of the tracks, Cammie is often the victim of rumors and blatant disrespect from several alphas in town; and while in a panic searching for her daughter who somehow managed to wander outside of the home, she finds herself in a panic when she comes across a police officer. Rather than help her, Cammie finds herself feeling threatened and helpless against the alpha’s behavior. That’s when Reid, one of her Alpha neighbors (and super hot firefighter) swoops in to her rescue. Sparks fly, but Cammie thinks nothing of it since she is so used to being disregarded. Little does she know, Reid goes home to his Omega, the adorable and caring Finn, and confesses that he thinks he’s met their match. What follows is a beautiful hurt/comfort romance, with lots of steam, and found family perfection! Reid and Finn worship Cammie and absolutely adore her kids. They’ll do anything to protect them and cherish them, to erase all the hurt and rejection that their bio dad put them through. It’s such a heart warming and emotional story—perfect for when you’re feeling like something low angst with princess treatment for not just Cammie, but her kids as well. I definitely recommend picking this one up!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2024
L
Verified Purchase
Lisa Maddison
Waukegan, US
★★★★★ 5
Emotional read with children
Format: Kindle
Cammie is a single mother of two children whose ex-boyfriend, who is an alpha that he met his scent matched omega and dumped her via messenger on his phone then the next day put their house up for sale. Cammie moves back to her hometown, but because she has no support, is working two jobs to keep her and the children in a small rented house. One night her four year gets out of the house and she meets a neighbour, but she refuses to make the same mistake again by getting involved with another alpha, but Reid is convinced they are scent matched mates even though Cammie is a beta. Reid and his omega Fin start to court Cammie and her two children that they belong together as a pack and family. Cammie's ten year old son is a tough one to convince, but the scenes between him and Reid and Fin, they were so good. I was tearing up at times, found family was a big theme and I really liked this book. I highly recommend that you try it too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2025
S
Verified Purchase
SR
Pawtucket, US
★★★★★ 5
Good start to a series
Format: Kindle
I delayed reading the series for reasons I don’t remember. But my TBR list is huge so I thought I’d take a shot of this and I was pleasantly surprised. I didn’t think the blurb about it was anything special. But it was a very good book. It took some interesting twists and turns. I am so glad the second book is already out. Because I would not have waited patiently. Very slow burn but good storyline. 🔥🔥/5
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2025

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