SKU: 94626153521

Johns Manville R-30 Unfaced Fiberglass Roll Insulation, 31.25-sq ft Coverage (15-in W x 25-ft L), Multi-Pack, B390S

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Description

Johns Manville R-30 Unfaced Fiberglass Roll Insulation, 31.25-sq ft Coverage (15-in W x 25-ft L), Multi-Pack, B390SR 30 Unfaced Fiberglass Roll Insulation, 15 in x 25 ft Boost attic efficiency with Johns Manville R 30 unfaced fiberglass roll insulation. Each 15 in x 25 ft roll covers 31. 25 sq ft and is designed for 16 in on center joists, delivering thermal performance and sound control without a vapor barrier. Key Features: High Thermal Performance: R 30 fiberglass roll helps reduce heat loss and improve energy efficiency in attics and ceilings. Unfaced Design:

R-30 Unfaced Fiberglass Roll Insulation, 15-in x 25-ft

Boost attic efficiency with Johns Manville R-30 unfaced fiberglass roll insulation. Each 15-in x 25-ft roll covers 31.25 sq ft and is designed for 16-in on-center joists, delivering thermal performance and sound control without a vapor barrier.

Key Features:

  • High Thermal Performance: R-30 fiberglass roll helps reduce heat loss and improve energy efficiency in attics and ceilings.
  • Unfaced Design: No vapor barrier—ideal for adding over existing insulation where moisture control is managed elsewhere.
  • Easy to Install: Sized for 16-in on-center wood studs; simply press in place between joists.
  • Durable, Safe Materials: Formaldehyde-free fiberglass that won’t rot, mildew, or corrode pipes and wiring; GREENGUARD Gold certified.
  • Sustainability Credentials: SCS Recycled Content certification and ENERGY STAR partner alignment.

Specifications Table:

Specification Details
R-Value 30
Coverage Area 31.25 sq ft per roll
Roll Dimensions 15 in W x 25 ft L
Thickness 9.25 in
Faced/Unfaced Unfaced
Stud/Joist Spacing 16 in on center
Insulation Type Fiberglass
For Use in Attics Yes
For Use in Ceilings Yes
For Use in Walls No
For Use in Floors No
Framing Type Wood studs
Formaldehyde Free Yes
Sound Barrier Yes
Reflective No
Vapor Retardant No
ENERGY STAR Certified Yes (program partner)
GREENGUARD Gold Certified Yes
SCS Recycled Content Yes
Warranty 1-year limited
Bag Dimensions (L x W x D) 15 x 15 x 22 in
Package Type Multi-pack
Package Count 12
Total Package Quantity 12
R-Value per Inch 3.24
Width 15 in
Length 25 ft
UNSPSC 30141500
Fits 2 x 4 Walls No
Fits 2 x 6 Walls No
For Use in Basements No
For Use in Crawlspaces No
For Use in Doors/Windows/Duct/Electrical/Plumbing/Vents/Masonry/Garage Doors No

Frequently Asked Questions (FAQ):

Q: How much area does one roll cover?
A: Each roll covers 31.25 sq ft (15 in. wide x 25 ft. long).

Q: Is a vapor barrier included?
A: No. This is unfaced insulation and does not include a vapor retarder.

Q: Where is this product best used?
A: Designed for attics and ceilings in wood-framed construction with 16-in on-center spacing.

Q: What is the roll thickness?
A: Approximately 9.25 inches thick to achieve R-30.

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

A Cloud-Soft Layer of Quiet, Cozy Performance

This plush, alabaster roll lays down like a whisper, instantly elevating an attic into a cocoon of calm and comfort. Its unfaced profile keeps the look clean while delivering steadfast R-30 performance that quiets and insulates. Pair it with warm wood tones and matte-black hardware for a crafted, modern envelope. It’s the invisible luxury that makes every room feel composed and beautifully livable.

Upgrade your attic with R-30 performance today and start saving on energy bills season after season.

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: 94626153521

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4.0 ★★★★★
Based on 30 reviews
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Product Reviews
J
Jill Nicely
Houston, US
★★★★★ 4
so elegant but best for softer foods
Color: Gold, Color: Gold
I am impressed with this gold silverware. I was surprised because they are very light, but they are also elegant. The handles are a little longer than the usual plasticware, so holding them, using them to eat, made me feel like the meal was elevated. These would be perfect at a garden party, a brunch, a fancy picnic. I love that there are equal numbers of knives, forks, and spoons, and they would look beautiful at place settings, or just tossed into glasses for people to grab what they need. My one misgiving about recommending these for any occasion is the knife. It’s just not sharp, and like the other pieces, it is lightweight. It’s great for spreading butter onto a roll and could cut through soft foods like pasta or cake. But any attempt to cut through a piece of meat or a starchy vegetable that’s just lightly cooked will result in the knife snapping in half. But if you’re serving relatively soft foods (brunch would be perfect!), then this is an elegant, easy solution to feed a lot of people while keeping cleanup to a minimum.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
C
Verified Purchase
Christine B.
Pawtucket, US
★★★★★ 5
Durability and reliability
Color: Gold
Very durable. Loved them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
R
Rose Patterson
Massapequa, US
★★★★★ 5
Fancy enough for a wedding, easy enough for a backyard party
Color: Gold, Color: Gold
I picked up this 300 Pack Premium Heavy Duty Gold Plastic Silverware set for a recent gathering, and honestly it worked out better than I expected. When you’re hosting a larger group, the last thing you want to worry about is running out of utensils or washing a mountain of dishes afterward, and this set definitely helped with that. First off, the 300-piece set is really convenient. You get 100 forks, 100 spoons, and 100 knives, which made it easy to plan for about 100 guests without having to buy multiple packs. Everything arrived neatly organized in a clear storage box, which actually made it super easy to keep things tidy until party time. The gold metallic finish is surprisingly nice. It gave the table a more polished, elegant look than standard plastic cutlery. I used them for a semi-formal dinner setup, and they blended in well with the decorations instead of looking cheap or out of place. As for durability, they’re definitely heavier than typical disposable utensils. The forks handled pasta and salads just fine, and the knives worked well for softer foods like chicken and cake. They’re not quite the same as real metal silverware, of course, but for plastic they’re pretty sturdy and didn’t snap or bend easily. I also appreciated that they’re BPA-free and disposable, which made cleanup incredibly simple once everything wrapped up. The only small downside is that if you’re cutting tougher foods like steak, you might notice the knives aren’t quite strong enough for that. But for most party foods, buffets, and desserts, they work perfectly well. Overall, this is a great option for parties, weddings, or large dinners when you want something that looks nicer than basic plastic but still want the convenience of disposable utensils. I’d definitely use them again for future events.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
J
John S.
Battle Creek, US
★★★★★ 5
Amazing value, looks great - quite durable
Color: Gold
I recently hosted a large dinner party and decided to go with the 300 Pack Premium Heavy Duty Gold Plastic Silverware. Let me tell you, it was a great choice! First off, the set comes with 100 forks, spoons, and knives, which was perfect for my guest list of 100. I love that it’s all in one package, so I didn’t have to stress about running out of cutlery during the event. The heavy-duty plastic feels surprisingly sturdy, and I didn’t have a single fork bend or break, even with the heartier dishes I served. The gold metallic finish added such an elegant touch to the table setting. My guests complimented how fancy it looked for disposable cutlery! It really elevated the overall vibe of the dinner without the hassle of using real silverware or worrying about cleanup. After the meals, all I had to do was toss everything into the trash, which saved me a ton of time and effort. Another thing I appreciated was the organized storage box. It kept everything neat and clean until I was ready to use it, which is a bonus if you're planning an event. All in all, I highly recommend this set for anyone hosting gatherings. It combines functionality with a stylish appearance, making cleanup a breeze while still impressing your guests.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
F
Fulano y Fulanita
Bozeman, US
★★★★★ 4
Slight odor, more flexible than I expected
Color: Gold, Color: Gold
These looked like they were going to be heavy duty, but they were more flexible than I expected (see video clip). They probably still will work well, but if you’re poking your fork into something stiff, expect that the fork might bend some. There was a slight chemical odor when I opened the package, and I’m not a fan of that. As someone with MCS, I have to avoid exposure to fragrances and other harmful chemicals, and it makes me wonder what these are coated with. The gold might be cute for the aesthetic you’re going for with a particular gathering or party, but I find it unnecessary. I would rather go with the real heavy duty ones that are clear plastic from a club warehouse rather than these gold ones. I feel that these are overpriced for the quality, but not a bad price if all you’re going for is the gold aesthetic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026

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