Internet #308298695

Model #UB-40-P3D-15--47--121

R-15 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags)

  • R-15 Mineral wool batt can be installed within exterior 2x4 wall
  • Easy to cut and install, even around construction irregularities
  • Fire resistant, mold resistant and non-corrosive
  • See More Details

Frequently Bought Together

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Price:
$86533

Product Overview

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Moisture Control

Remains mold resistant by creating an insulation moisture barrier within the wall cavity.

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Fire Resistance

Non-combustible insulation resists fire and temperatures in excess of 2000°F, giving you more time to get out in the event of a fire.

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Sound Insulation

Designed with outstanding acoustic insulation to help deaden noise, provide sound insulation in walls and reduce sound from traveling room-to-room.

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What Is R-Value?

The R-value for insulation measures how well insulation materials can resist heat - the higher the R-value, the greater the insulation performance.

Man with insulation knife and tape measure cutting Thermafiber

Insulation Supplies

Thermafiber can be installed easily and requires minimal equipment.

Man gently placing Thermafiber in wall cavity

Ease Of Installation

Flexible insulation is easy to cut and install, allowing it to conform to building shapes and construction irregularities.

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Brand You Can Trust

Thermafiber is the #1 specified brand* of mineral wool.

Department of Energy recommended R-value map

R-Value Insulation Map

Find your zone on the insulation map.

Department of Energy recommended R-value chart

R-Value Insulation Chart

Now use the R-value table to determine the recommended R-value you need.

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Insulation Calculator

The insulation estimator helps you determine how much insulation is needed to cover the total square footage of your attic, floor and walls.

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Energy Savings

Thermafiber insulation reduces the transfer of heat and cold through building structures to provide thermal comfort and continuous energy saving insulation.

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Make More Possible

Owens Corning is a global leader in engineered materials for roofing, insulation and composites.

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Smarter Through Science

Our innovative solutions are safe, sustainable, durable, efficient and affordable to address thermal, air, fire and moisture performance.

Therma-fiber UltraBatt mineral wool is designed to provide excellent thermal insulation in residential and light commercial building. The semi-rigid batts are more dense than traditional batts or rolls and are quick and easy to install. UltraBatt products are non-combustible, moisture-resistant, non-corrosive and mold resistant.
  • Dimensions:3.92 ft. x 3.5 in. x 15 in., 6 pieces (29.4 sq. ft. / bag)
  • 24 bags/pallet = 144 pieces/705.6 sq. ft.
  • Mold resistant
  • Provides fire resistance
  • Unfaced Insulation: does not have a vapor retarder
  • Flexible Insulation is easy to cut and install, allowing it to conform to building shapes and construction irregularities
  • Thermafiber Insulation reduces the transfer of heat and cold through building structures to provide thermal comfort and continuous energy savings
  • Step 1 of installation: Measure and cut Insulation
  • Step 2 of installation: Squeeze and insert Insulation into desired space
  • Step 3 of installation: Release and let product expand within the wall
  • Shop all Owens Corning Thermafiber Mineral Wool Insulation here
  • Shop all Owens Corning Thermafiber Mineral Wool Insulation here
  • California residents

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Mineral Wool Insulation

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R-15 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags)
Thermafiber Fire and Sound Guard Unfaced Mineral Wool Insulation Batt 15 in. x 47 in. (24-Bags)R-30 15 in. x 47 in. Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt (24-Bags)R-23 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags)
BrandOwens CorningOwens CorningOwens CorningOwens Corning
NameR-15 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags)Thermafiber Fire and Sound Guard Unfaced Mineral Wool Insulation Batt 15 in. x 47 in. (24-Bags)R-30 15 in. x 47 in. Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt (24-Bags)R-23 Thermafiber UltraBatt Unfaced Mineral Wool Insulation Batt 15in. x 47in. (24-Bags)
Price
$86533
/pallet
$102063
/pallet
$116392
/pallet
$119900
/pallet
Ratings
(3)
(1)
(1)
(37)
Insulation Location2x4 Wall,2x4 Wall,2x4 Wall,Ceiling Insulation,Ceiling Insulation,Ceiling Insulation,Floor,Floor,Floor2x4 Wall,2x4 Wall,2x4 Wall,2x4 WallCeiling Insulation,Ceiling Insulation,Ceiling Insulation,Floor,Floor,Floor2x6 Wall,2x6 Wall,2x6 Wall
Product Thickness (in.)3.5 in3 in7.125 in5.5 in
Insulation FeaturesFire Block Rated,Fire Block Rated,Fire Block Rated,Friction Fit,Friction Fit,Friction Fit,Soundproofing Insulation,Soundproofing Insulation,Soundproofing InsulationFire Block Rated,Fire Block Rated,Fire Block Rated,Fire Block RatedFire Block Rated,Formaldehyde Free,Formaldehyde Free,Formaldehyde FreeFire Block Rated,Fire Block Rated,Fire Block Rated
Insulation R-ValueR15 R30R23
Number of Bags1111
Compatible Install SurfacePlywood,Plywood,Plywood,Wood,Wood,WoodPlywood,Plywood,Plywood,PlywoodPlywood,Plywood,Plywood,Wood,Wood,WoodPlywood,Plywood,Plywood
Roll or BattBattBattBattBatt
Faced or UnfacedUnfacedUnfacedUnfacedUnfaced
View ProductView ProductView ProductView Product

Specifications

Dimensions

Coverage Area (sq. ft.)
29
Product Length (ft.)
3.92 ft
Product Thickness (in.)
3.5 in
Product Width (in.)
15 in

Details

Bag Size
3.91 ft. x 24.5 in. x 15 in.
Batt/Roll Size
3.92 ft. x 3.5 in. x 15 in.
Compatible Install Surface
Plywood,Plywood,Plywood,Wood,Wood,Wood
Coverage Area per Bag (sq. ft.)
29.4
Faced or Unfaced
Unfaced
Insulation Features
Fire Block Rated,Fire Block Rated,Fire Block Rated,Friction Fit,Friction Fit,Friction Fit,Soundproofing Insulation,Soundproofing Insulation,Soundproofing Insulation
Insulation Location
2x4 Wall,2x4 Wall,2x4 Wall,Ceiling Insulation,Ceiling Insulation,Ceiling Insulation,Floor,Floor,Floor
Insulation R-Value
R15
Insulation Type
Mineral Wool Insulation
Number of Bags
1
Pieces Per Bag
6
Pieces per Pallet
0
Product Weight (lb.)
24 lb
Returnable
180-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
3-Year Limited

Questions & Answers

9Questions10Answers

Is this the same as rainbarrier 45?

Asked by Bob February 26, 2021
1
Answer

Hello Bob, Thermafiber UltraBatt is not the same as the Thermafiber RainBarrier. The UltraBatt is intended to be used as a thermal and acoustical insulation on the interior side of the building. The Thermafiber RainBarrier is intended to be used as continuous insulation on the exterior side of the building. The RainBarrier has added silicon and is engineered and manufactured specifically for improved moisture resistance. Thank you for your inquiry!

Can you use this in 2x3 walls?

Asked by Matthew January 4, 2021
1
Answer

Hello Matthew, R-15 UltraBatt is 3.5" thick, it may be difficult to compress the insulation into a 2.5" cavity. Also compressing the insulation will reduce the R-value of the product. Thank you for your inquiry!

Why does it cost more per bag ($36.05/each bag) for the pallet of 24 bags than it does for indivi...

Asked by Roger November 27, 2020
1
Answer

Hello Roger, Please contact your local Home Depot for pricing information. Thank you for your inquiry!

can I use this on the outside of my sheathing?

Asked by KevinH October 30, 2020
2
Answers

Hello KevinH, Thermafiber UltraBatt cannot be used on the exterior side of a wall, it needs to be protected from the elements. It can be used on the interior side of an exterior wall. Thank you for your inquiry!

Can i double up the r15 3.5 inch ultrabatt exterior rated and put in attic ceiling?

Asked by Tableauman October 22, 2020
1
Answer

Hello Tableauman, As long as you have proper ventilation, the addition of more insulation to the attic floor is acceptable. If any batts are faced, they must be in contact with the drywall ceiling in the attic. We suggest looking at R-15 fiberglass as that will be a lighter batt that will be less likely to compress the bottom batt. Thank you for your inquiry!

is this formaldehyde-free?

Asked by jackobean October 15, 2020
1
Answer

Hello jackobean, Thermafiber UltraBatt is manufactured with a binder that contains formaldehyde as an ingredient. During the manufacturing process, however, these products are cured at a very high temperature and virtually all of the binder formaldehyde is eliminated. The amount of formaldehyde in the finished product is less than 0.01% by weight. At this low level, and because we oven cure the product during manufacture, out-gassing of formaldehyde is extremely low and is not a significant source of formaldehyde when installed in a home or building. Thank you for your inquiry!

I have old blown insulation in my condo attic or crawl space, I want to remove it, and start off ...

Asked by Voni March 4, 2020
1
Answer

Hello Voni - More information is needed in order to assist you. Please contact an Owens Corning representative at 1-800-GET-PINK for assistance with your project.

how many sq ft is each bag?

Asked by moses February 23, 2020
1
Answer

Hello moses - There is 29.37 sq. ft. per bag. Thank you for your inquiry!

One bag of this is $24.64, so 24 bags should be about $590. Why are you charging $865 for these? ...

Asked by PJ October 30, 2019
1
Answer

Hello PJ, Please contact a representative at your local Home Depot ProDesk or you can call 1-800-HOME-DEPOT for current pricing. Thank you for your inquiry!

Customer Reviews

  • 5
    out of 3 reviews
  • 100% recommend this product
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Showing 1-3 of 3 reviews
Very good quality very happy with it even the building...
Very good quality very happy with it even the building inspector said it was above and beyond what they were expecting install extremely easy
by HomeDepotCustomer
Excellent product. I bought the saw that was linked with...
Excellent product. I bought the saw that was linked with the insulation and it does an excellent job of shaping and cutting the batt. Very easy to squeeze and place between the wall studs and behing the wires crossing thru the studs. Light to handle and move around
by DAVID
Easy to cut when needed to and not bad to handle like fiberglass. Have ordered more.
Easy to cut when needed to and not bad to handle like fiberglass. Have ordered more.
by Steveo
Showing 1-3 of 3 reviews