StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Guardian Building Products › Energy efficient
Guardian Building Products
Knauf R-19 Kraft Faced Batt Fiberglass Insulation
Guardian Building Products

Knauf R-19 Kraft Faced Batt Fiberglass Insulation

4.9(47 ratings)

Best price now

$295.70at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $295.70 at Walmart on Nov 12.

Our take on the Knauf R-19 Kraft Faced Batt Fiberglass Insulation

Knauf R-19 kraft faced batts are fiberglass insulation for walls, floors and ceilings, sold in 23-inch-wide by 94-inch-long pieces. They are formaldehyde-free and certified Asthma & Allergy Friendly and Verified Healthier Air, which sets them apart from most fiberglass batts. The kraft facing gives a vapor-retarder surface for framing cavities, and the batts cut cleanly and recover quickly for pros and DIYers. They suit 2x6 exterior walls and other cavities that need a higher R-value than R-13 or R-15 batts.

Best for2x6 exterior wall cavitiesDIY retrofits and remodelsAllergy-sensitive householdsSound control in interior walls
Pros
  • R-19 rating suits 2x6 framing
  • Formaldehyde-free binder
  • Asthma & Allergy Friendly certified
  • Low dust and low VOC emissions
  • Cuts cleanly and recovers quickly
  • Kraft facing acts as a vapor retarder
Cons
  • Fiberglass still needs gloves, sleeves and eye protection
  • Kraft facing must face the warm side of the wall
  • Batts must fill the cavity fully or R-value drops
  • Not for every cavity depth without compression

Knauf R-19 Kraft Faced Batt Fiberglass Insulation prices at every store

  • WalmartNew

    In stockSold by SIM Supply IncReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $295.70Free shippingChecked Nov 12
    Visit Walmart

What reviewers say

  • 4.9 / 547 ratings

Owners rate these batts highly, praising easy handling, clean cuts and quick recovery. Many mention less dust and itch than older fiberglass, and allergy-conscious buyers value the certifications.

What people mention
  • HandlingPraisedOwners say the batts cut cleanly and spring back to full thickness.
  • Dust and itchPraisedBuyers report less dust and skin irritation than with older fiberglass.
  • CertificationsPraisedAllergy-sensitive households value the Asthma & Allergy Friendly and Healthier Air labels.
  • Protective gearMixedReviewers note gloves, long sleeves and eye protection are still needed.
  • Kraft facingMixedThe facing helps as a vapor retarder but can tear with rough handling.

About the Knauf R-19 Kraft Faced Batt Fiberglass Insulation

Knauf R-19 Kraft Faced Batt is fiberglass insulation that acts as a thermal barrier in both hot and cold climates. It helps save energy and lower energy bills, makes the indoor environment more comfortable, and adds acoustical insulation to a home or commercial structure.

Knauf Performance+ products are Asthma & Allergy Friendly Certified and Verified Healthier Air. The certification program was established by the AAFA and Allergy Standards Limited (ASL). It involves physical and chemical testing to ensure products reduce allergen exposure and limit pollutants indoors. Knauf's residential Performance+ insulation uses a formaldehyde-free binder. It has extremely low dust levels after installation and extremely low VOC emissions at 24 hours and 14 days after installation.

Knauf ECOBATT products cut easily and cleanly, recover quickly and are less dusty. They are made to install easily, whether by a professional or a DIY installer.

Brand
Guardian Building Products
Size
23 x 94
Binder
Formaldehyde-free
Certifications
Asthma & Allergy Friendly Certified, Verified Healthier Air

Specifications

color
MulticolorSource
size
23 x 94Source

Questions and answers

What does R-19 mean?
It is the thermal resistance rating. R-19 is aimed at 2x6 wall cavities and similar spaces that need more resistance than R-13 batts.
Is this insulation formaldehyde-free?
Yes. Knauf uses a formaldehyde-free binder and reports very low VOC emissions and low dust after installation.
Can I install it myself?
Yes. The batts are made for easy cutting and fitting, but wear gloves, long sleeves, eye protection and a mask.
Which side does the kraft facing go on?
The facing goes toward the warm, conditioned side of the wall in most climates. Check local code for vapor retarder rules.
Is it good for soundproofing?
Fiberglass batts also absorb sound, so they help reduce noise between rooms when cavities are filled fully.
What size are the batts?
Each piece is 23 inches wide and 94 inches long, sized for standard stud spacing and wall height.
Where is the Knauf R-19 Kraft Faced Batt Fiberglass Insulation cheapest?
At Walmart, for $295.70, as of our latest check.
What do buyers say about the Knauf R-19 Kraft Faced Batt Fiberglass Insulation?
Rated 4.9 out of 5 from 47 ratings.

More from Guardian Building Products

  • S
    Service Partners 147303 R19 Kraft Insulation Roll
    Service Partners 147303 R19 Kraft Insulation Roll
  • G
    Guardian Building Products 302646 24 x 28 in. Insul Batt R38k
    Guardian Building Products 302646 24 x 28 in. Insul Batt R38k
  • G
    Guardian Building Prod KR45E/TAK Fiberglass Insulation Roll
    Guardian Building Prod KR45E/TAK Fiberglass Insulation Roll
All Guardian Building Products deals and products →

More fiberglass insulation

  • C
    Certainteed R-19 Kraft Faced Fiberglass Insulation Batt
    Certainteed R-19 Kraft Faced Fiberglass Insulation Batt
C
Certainteed R-21 Kraft Faced Fiberglass Insulation Batt
Certainteed R-21 Kraft Faced Fiberglass Insulation Batt
  • O
    Owens Corning 23 in W x 470 in L x 6.25 in 19 Unfaced Fiberglass Insulation Roll
    Owens Corning 23 in W x 470 in L x 6.25 in 19 Unfaced Fiberglass Insulation Roll
  • G
    Guardian Knauf Standard Unfaced Roll Fiberglass Insulation - Single Pack
    Guardian Knauf Standard Unfaced Roll Fiberglass Insulation - Single Pack
  • B
    Batt R-13 15 in. x 93 in. (106.56 sq. ft.) Faced Fiberglass Insulation
    Batt R-13 15 in. x 93 in. (106.56 sq. ft.) Faced Fiberglass Insulation
  • I
    INSUL R13K 15IN X 32FT ROLL-25712
    INSUL R13K 15IN X 32FT ROLL-25712
  • J
    Johns Manville R-13 Wall Kraft Faced Fiberglass Batt Insulation (15-in W x 93-in L) Individual Pack
    Johns Manville R-13 Wall Kraft Faced Fiberglass Batt Insulation (15-in W x 93-in L) Individual Pack
  • O
    Owens Corning R-21 Kraft Faced Fiberglass Insulation Batt 23 in. x 93 in. x 5.5 in.
    Owens Corning R-21 Kraft Faced Fiberglass Insulation Batt 23 in. x 93 in. x 5.5 in.