Internet #306769501

Model #U1387

R-21 Unfaced Fiberglass Insulation Batt 16 in. x 96 in. (10-Bags)

(1)
Questions & Answers (8)
  • R-21 offers efficient noise and thermal control
  • Keeps rooms cool in summer and warm in winter for low energy cost
  • For 2x6 wood-framed walls, floors, and crawl spaces
  • See More Details

Frequently Bought Together

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Price:
$72054

Product Overview

JM Unfaced Formaldehyde-free fiberglass insulation offers R-values ranging from R-11 to R-38, as well as effective thermal and noise control. it delivers comfort helping homes stay cooler in the summer and warmer in the winter to reduce energy costs. Our Unfaced fiberglass insulation is available in pre-cut batts for standard-sized wall cavities and in rolls that can be cut to fit any size cavity. Great for: new construction and remodels.
  • For use in 2 in. x 6 in. wood-framed walls, floors and crawl spaces
  • Batts are pre-cut for use in standard 8 ft. walls with 16 in. on-center stud spacing
  • Unfaced without a vapor retarder can be added to existing insulation
  • Improves energy efficiency and provides sound control

Info & Guides

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R-21 Unfaced Fiberglass Insulation Batt 16 in. x 96 in. (10-Bags)
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BrandJohns ManvilleOwens CorningOwens CorningJohns Manville
NameR-21 Unfaced Fiberglass Insulation Batt 16 in. x 96 in. (10-Bags)R-21 Unfaced Fiberglass Insulation Batts 23 in. x 93 in. (10-Bags)R-21 PINK Kraft Faced Fiberglass Insulation Batt 15 in. x 93 in. (10-Bags)R-30C Kraft Faced Fiberglass Insulation Batt 15.5 in. x 48 in. (8-Bags)
Price
$72054
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Ratings
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(35)
(117)
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Insulation R-ValueR21R21R21R30
Faced or UnfacedUnfacedUnfacedFacedFaced
Insulation Location2x6 Wall,Crawlspace,Floor2x6 Wall,2x6 Wall,2x6 Wall,2x6 Wall,2x6 Wall2x6 WallCeiling Insulation
Roll or BattBattBattBattBatt
Insulation FeaturesFormaldehyde Free,Friction Fit,Soundproofing InsulationFormaldehyde Free,Formaldehyde Free,Formaldehyde Free,Formaldehyde Free,Formaldehyde FreeFormaldehyde FreeFormaldehyde Free,Friction Fit,Soundproofing Insulation,Vapor Retardant
Product Thickness (in.)5.5 in5.5 in6.25 in8.25 in
Compatible Install SurfaceCement,Concrete,Copper Pipes,Existing Drywall,Existing Insulation,Fiberglass,Metal,PVC/CPVC Pipes,Pex Pipes,Plywood,Tile Flooring,WoodPlywood,Plywood,Plywood,Plywood,PlywoodPlywoodCement,Concrete,Copper Pipes,Existing Drywall,Existing Insulation,Fiberglass,Metal,PVC/CPVC Pipes,Pex Pipes,Plywood,Tile Flooring,Wood
Number of Bags101108
Product Length (ft.)8 ft7.75 ft7.75 ft4 ft
View ProductView ProductView ProductView Product

Specifications

Dimensions

Coverage Area (sq. ft.)
747
Product Length (ft.)
8 ft
Product Thickness (in.)
5.5 in
Product Width (in.)
16 in

Details

Bag Size
4.08 ft. x 16.5 in. x 19.5 in.
Batt/Roll Size
8 ft. x 5.5 in. x 16 in.
Compatible Install Surface
Cement,Concrete,Copper Pipes,Existing Drywall,Existing Insulation,Fiberglass,Metal,PVC/CPVC Pipes,Pex Pipes,Plywood,Tile Flooring,Wood
Coverage Area per Bag (sq. ft.)
74.66
Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free,Friction Fit,Soundproofing Insulation
Insulation Location
2x6 Wall,Crawlspace,Floor
Insulation R-Value
R21
Insulation Type
Fiberglass Insulation
Number of Bags
10
Pieces Per Bag
7
Pieces per Pallet
5
Product Weight (lb.)
31.91 lb
Returnable
180-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
NA

Questions & Answers

8Questions7Answers

can we just purchase 5 bags of R-21

Asked by Dave September 7, 2020
0
Answers

How Manu bags i New for 1600 sqft

Asked by Rick July 13, 2020
1
Answer

The coverage area per bag is 67.81 sq. ft. For a 1600 sq. ft. area you will need ~24 bags. Thank you.

California Prop Warning on this product?

Asked by AL June 30, 2020
1
Answer

Please refer to the Safety Data Sheet for CA Prop 65 information: https://www.jm.com/content/dam/jm/global/en/MSDS/200000002059_US_EN.pdf Thank you.

Can i sandwich these batts between rigid foam board against the inside roof deck with a 1" air gap?

Asked by Eric May 11, 2020
1
Answer

To answer this question we need a little more information about your project. Please call JM Building Insulation Technical: 800-654-3103 – option 3. Thank you.

how many batts come in each bag

Asked by Sidework March 18, 2020
1
Answer

7 batts per bag. Thank you.

I need to install 8100 linear inches 15" bays of 2x8 crawl space floor beams. How many bags do I ...

Asked by Garrett December 24, 2019
1
Answer

Garrett, We'd love to sell you 87 bags :), but you don't need that many. Each bag of R-21 has 7 batts, so the number of bags would be 87/7=12.4. You'll need to buy 13 bags for the project. Good luck and thank you for considering Johns Manville product for your project.

can you buy the bags individually i only need 2 bags

Asked by randy September 4, 2019
1
Answer

Randy, Home Depot appears to be not selling individual bags. We recommend checking with your local store if they can sell individual bags or checking at another home supply store.

How many bats per bag?

Asked by Doug January 5, 2019
1
Answer

Hello Doug, Thank you for your interest in Johns Manville's R-21 fiber glass insulation. The package has 7 batts per bag and the coverage per bag is 67.8 square feet. Best regards, Doug Fast

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Easy to install, Came highly recommended, surpassed my expectations....
Easy to install, Came highly recommended, surpassed my expectations.
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