Internet #303425926

Model # UB-40-P5D-15--47--121

Store SKU #1002951851

0047563712773

Owens Corning

R-23 Thermafiber UltraBatt Mineral Wool Insulation Batt 15 in. x 47 in.

$ 29 70
Buy 15 or more  $20.79  
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Frequently Bought Together

Frequently Bought Together

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Product Overview

Thermafiber 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.
  • Energy saving thermal insulation
  • Easy to install
  • Mold resistant
  • Provides fire resistance
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button
    "
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: UB-40-P5D-15--47--121
Sku #: 1002951851
Internet #: 303425926

Thermafiber 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.

  • Energy saving thermal insulation
  • Easy to install
  • Mold resistant
  • Provides fire resistance
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button
    "
  • California residents see Prop 65 WARNINGS

Info & Guides

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Compare Similar

Compare Similar Products
Brand ROCKWOOL Owens Corning ROCKWOOL Owens Corning
Name R-30 ComfortBatt Fire Resistant Mineral Wool Insulation Batt 15 in. x 47 in. (12-bag) Thermafiber Fire and Sound Guard Mineral Wool Insulation Batt 23 in. x 47 in. (12-Bags) R-15 ComfortBatt Fire Resistant Stone Wool Insulation Batt 15 in. x 47 in. (12-Bags) R-23 Thermafiber UltraBatt Mineral Wool Insulation Batt 15 in. x 47 in.
Price
$621.00 /pallet
$674.00 /pallet
$685.00 /pallet
Ratings (441) (96) (490) (31)
Insulation Location Attics,Attics,Basements,Basements,Ceilings,Ceilings,Crawlspaces,Crawlspaces,Floors,Floors 2x6 Walls,Ceilings,Floors 2x4 Walls,Attics,Basements,Ceilings,Crawlspaces,Floors 2x6 Walls,Ceilings,Floors
Roll or Batt Batt Batt Batt Batt
Faced or Unfaced Unfaced Unfaced Unfaced Unfaced
Product Thickness (in.) 7.25 in 3 in 3.5 in 5.5 in
Coverage Area (sq. ft.) 29.9 60 ft² 59.7 19.6 ft²
View Product View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
19.6 ft²
Product Length (ft.)
3.91 ft
Product Thickness (in.)
5.5 in
Product Width (in.)
15 in

Details

Bag Size
ft. x in. x in.
Batt/Roll Size
3.91 ft. x 5.5 in. x 15 in.
Faced or Unfaced
Unfaced
Insulation Features
Fire Block Rated,Friction Fit,Soundproofing Insulation
Insulation Location
2x6 Walls,Ceilings,Floors
Insulation R-Value
R23
Insulation Type
Mineral Wool Insulation
Number of Bags
1
Pieces Per Bag
4
Product Weight (lb.)
29.05lb
Returnable
90-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
3-Year Limited

Specifications

Dimensions

Coverage Area (sq. ft.)
19.6 ft²
Product Length (ft.)
3.91 ft
Product Thickness (in.)
5.5 in
Product Width (in.)
15 in

Details

Bag Size
ft. x in. x in.
Batt/Roll Size
3.91 ft. x 5.5 in. x 15 in.
Faced or Unfaced
Unfaced
Insulation Features
Fire Block Rated,Friction Fit,Soundproofing Insulation
Insulation Location
2x6 Walls,Ceilings,Floors
Insulation R-Value
R23
Insulation Type
Mineral Wool Insulation
Number of Bags
1
Pieces Per Bag
4
Product Weight (lb.)
29.05lb
Returnable
90-Day
Roll or Batt
Batt

Warranty / Certifications

Warranty Information
3-Year Limited

Questions & Answers

need to insulate my small home about 300 sq ft will this be good for ceiling and about how many w...

need to insulate my small home about 300 sq ft will this be good for ceiling and about how many would I need to cover all thank you
Asked by: glenda
The recommended R-value varies based on your climate zone. In northern climates, you shouldinstall two layers of R-23 insulation to achieve a suffieient insulation level. While 16 packages would likely be sufficient to achieve R-23 insulation, you will need 31-32 packages to achieve an R-46 total insulation. Whether you simply lay two batts atop each other, or cross them depends on the structure being insulated.
Answered by: Mark
Date published: 2019-01-28

Will this require a plastic moisture film placed on top of it after installation between the jois...

Will this require a plastic moisture film placed on top of it after installation between the joist and drywall?
Asked by: KeystoneCop
The moisture barrier is typically placed on the warm side of the exterior wall or ceiling. Mineral wool is naturally moisture resistant, but, to achieve better performance, barrier is typically installed. This barrier (poly film for unfaced insulation) serves not only as a vapor barrier, but also as a means to minimize air flow, thus further improving the energy efficiency of your home.
Answered by: Mark
Date published: 2018-12-27

how many of these do you need for a crawlspace 1440 sq. feet?

how many of these do you need for a crawlspace 1440 sq. feet?
Asked by: poe
You will likely need appx 74 bags of this R-23 insulation for an area of 1440 sf. It is always a good idea to have more though, to allow for waste. So, 80 bags wiould be a more appropriate amount to procure.
Answered by: Mark
Date published: 2018-08-21

would this product be suitable for a home crawlspace?

would this product be suitable for a home crawlspace?
Asked by: poe
Yes, mineral wool is usually a suitable product for applications such as crawlspaces.
Answered by: Mark
Date published: 2018-08-21
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Customer Reviews

R-23 Thermafiber UltraBatt Mineral Wool Insulation Batt 15 in. x 47 in. is rated 4.6 out of 5 by 31.
Rated 5 out of 5 by from Superior Insulation Ill never work with fiberglass batts again. This mineral wool cuts easily with a serrated bread knife and you don’t end the day with irritated skin or watery eyes. It has a nice density that allows it to be shoved in tight between studs instead of requiring stapling backing paper like the pink stuff. Remember your grandpa’s old army green wool blankets from his military service? Imagine one of those folded up to become 4-ply, and imagine having that stuffed between studs. It’s fireproof, rodents don’t like the mineral content, it’s sound deafening (even if you buy the one that isn’t advertised to do that), eco-friendly, easy to work with without causing health hazards, much lower chemical content providing cleaner air for home occupants and it just works beautifully. If it were to get wet, its fibrous enough to allow for air circulation and drainage and is mold and rot resistant. FAIR WARNING: Once you use this, you won’t ever use (or inhale) rolled bats of the itchy pink stuff again.
Date published: 2018-11-11
Rated 5 out of 5 by from I've used many different types of insulation including the other brand or mineral wool insulation... I've used many different types of insulation including the other brand or mineral wool insulation that HD sells Roxul, so I'll try to help folks out with which I like for different applications. I have a highway near my house and I found this Ultrabatt insulation is better for sound deadening over regular fiberglass of the same or close to R value. I had originally put up R21 fiberglass on the wall facing the highway, I took it down to put up the mineral wool. My wife who has great hearing said she noticed a big difference in the quietness with the mineral wool. As far a how much warmer it is than fiberglass I did an experiment when the temp outside was freezing. I found the R23 Thermafiber was about 1 degree warmer than the R21 fiberglass. in a 2x6" wall. This could be because of the R21 vs the R23, I’m not sure. To compare Roxul (now called Rockwool at HD I believe) to the Ultrabatt, they both cut well with an ordinary cheap bread knife (like butter), just find the longest one you can and a point at the tip is helpful. Make sure when you cut the insulation the blade is at a perfect 90 degree angle. I had to sharpen mine several times in a motor driven kitchen knife sharpener to complete a 1000 sq ft bonus room above a garage. When installing any kind of mineral wool there are a few things to consider. First, it will take much longer to install as you are basically cutting each piece to fit and if there are wires or plumbing in the way it can take even longer. If you have a totally open (no wires or plumbing) perfect 16” OC walls it can be installed rather quickly or almost the same speed as fiberglass, it's when you hit the less than optimal wall cavity that's narrow, as the insulation will sometimes break apart as you try to install it, actually crumble. I found that the Roxul brand is a little better about not falling apart as easily and has a little less dust when cutting and installing, but both really REQUIRE that you use a dust mask & eye protection so... don't even think of not using them when installing this insulation! You should also wear long sleeves & long pants as the “sand” or stone dust might give you a rash. The way I ended up getting around wires & plumbing was to cut the batt to the height of the wire and then put the other cut piece on top to finish out the wall cavity, I first tried putting a slit on the back of a full piece of insulation & pressing it in over the wires, but found that the batt would just break apart (and not in a straight line). Trying to pull a full piece behind the wire was impossible, it just fell apart. In some walls with 4 or 5 wires spaced 3" apart proved much tricker. I ended up not only cutting the batt in sections top to bottom of about 10" each but splitting it depth-wise as well. Trying to pull or push any more than 10" behind wires will prove to be frustrating as the insulation just crumbles & falls apart. All this cutting, splitting & fitting is very time consuming, but I feel it's worth it in the long run, as my grandfather always said, it's cheaper & easier to do it right the first time than going back to fix it later. Cutting around electrical boxes also proved to be a little more time consuming than fiberglass. My final solution to this problem was to again cut the insulation horizontally to the height of the top of the electrical box, carefully carve out the space for the box (hight, width & depth) and then carefully push the "ear" behind the box & wires (not always perfect btw depending on how the wires lay), then take the remaining cut 1/2 a batt and butt it up to the first installed piece. After a while you feel more like you're cutting blocks of wood to fit spaces rather than installing insulation. There were places where the mineral wool insulation just wouldn't work (see pic below), like in some corners where there was only an inch opening to stuff in the insulation that had to be 5 1/2" wide, so I ended up using fiberglass, same with studs that had less than 2" of space between them. The pluses of Thermafiber Ultrabatt insulation are that it's fire rated, which I ended up needing. On one wall of my garage that attaches to the house, my local building inspector required that I use this (mineralwool) rather than fiberglass. To conclude, as stated above, Ultrabatt seems to be better at sound deadening than fiberglass, it's warmer as it's R23 whereas Fiberglass only comes in R21 for 2x6’s, and the last thing I haven't mentioned, is, it will not absorb water or grow mold. If there is a water leak you can remove the insulation, fix the leak and dry out the insulation and reinstall it. Oh... one more plus, I've also read on line that mice don't like building nests in mineralwool nor do they like digging thru it. If you’re willing to spend the time installing the Owens Corning Ultrabatt insulation, I highly recommend using it, you only get to insulate once! If you found this review helpful please click on the thumbs up button! Thanks!
Date published: 2018-11-02
Rated 5 out of 5 by from Thermofiber is easy to work with about 10x better... Thermofiber is easy to work with about 10x better than fiberglass. Easy to cut with a kitchen knife , you can separate it by hand, no itch, stacks neatly in the correct stud space, etc. For those of us who live in rural areas the critters wont eat or burrow in it. To me it just installs faster.
Date published: 2019-07-09
Rated 5 out of 5 by from I find this the best insulation to work with... I find this the best insulation to work with because it is semi rigid and it has a great sound reduction property
Date published: 2019-04-20
Rated 5 out of 5 by from Good stuff. Used it to insulate exterior wall where... Good stuff. Used it to insulate exterior wall where fireplace is located. Easy to cut and shape to fill gaps.
Date published: 2019-04-23
Rated 5 out of 5 by from Product was easy to cut and install. Looking forward... Product was easy to cut and install. Looking forward to a warmer and cooler home.
Date published: 2019-07-02
Rated 5 out of 5 by from Exactly as described. I'm glad I paid for shipping. Would... Exactly as described. I'm glad I paid for shipping. Would buy again. Thanks.
Date published: 2019-05-08
Rated 1 out of 5 by from 1 Star Review Rating provided by a verified purchaser
Date published: 2019-04-21
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