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Deal.ai › Knauf
Knauf
Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt

Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt

4.8(1 rating)

Best price now

$28.50at Woodson LumberChecked Nov 13

23% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $28.50 at Woodson Lumber on Nov 13.
  • Checked at 13 stores.

Our take on the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt

Knauf R-13 EcoBatt is a kraft-faced fiberglass batt for 2x4 wall cavities, cut to 15 in. by 93 in. and 3.5 in. thick. The kraft facing works as a vapor retarder and is marked in 1 ft. increments for straight cuts and stapling. ECOSE binder makes it formaldehyde-free, low-dust and softer to handle than older fiberglass, and it carries GREENGUARD Gold certification. It suits DIYers and remodelers insulating standard stud walls; against unfaced batts it adds moisture control, and against mineral wool it is lighter and cheaper to cover but weaker on fire and sound blocking.

Best forInsulating 2x4 exterior and interior stud wallsDIY basement and garage wall projectsBuyers who want a formaldehyde-free, low-dust battProjects needing a built-in vapor retarder
Pros
  • R-13 rating for standard 2x4 framing
  • Kraft facing doubles as a vapor retarder
  • Facing marked in 1 ft. increments for fast cuts
  • ECOSE binder: formaldehyde-free and low-dust
  • Pre-cut batts recover and friction-fit the cavity
  • GREENGUARD Gold certified with recycled content
Cons
  • Fiberglass still needs gloves, glasses and a mask
  • Kraft facing must be stapled and sealed to work as a retarder
  • Batts are sized for 15 in. cavities, not 16 in. on-center framing without trimming
  • R-13 only; deeper walls need thicker batts or another product
  • Compressing the batt lowers its R-value

Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt prices at every store

  • Do it BestNew

    In stock

    $32.99+ $10.60 shippingChecked Nov 13
    Visit Do it Best
  • WalmartNew

    In stockSold by Supply the Home

    $46.39Free shippingChecked Nov 13
    Visit Walmart
  • Ace HardwareNew

    In stock

    $41.99+ $30.00 shippingChecked Nov 13
    Visit Ace Hardware
  • The Home DepotNew

    In stock

    $1,159.00Checked Nov 13
    Visit The Home Depot
  • Woodson LumberNew

    Availability unknown

    $28.50Checked Nov 13
    Visit Woodson Lumber
  • Family HardwareNew

    Availability unknown

    $29.67Checked Nov 13
    Visit Family Hardware
  • Shell Lumber and HardwareNew

    Availability unknown

    $32.80Checked Nov 13
    Visit Shell Lumber and Hardware
  • Carr HardwareNew

    Availability unknown

    $34.99Checked Nov 13
    Visit Carr Hardware
  • eBayNew

    Availability unknownSold by simsupply

    $36.60Checked Nov 13
    Visit eBay
  • True ValueNew

    Availability unknown

    $36.99Checked Nov 13
    Visit True Value
  • City MillNew

    Availability unknown

    $42.99Checked Nov 13
    Visit City Mill
  • DK HardwareNew

    Availability unknown

    $55.09Checked Nov 13
    Visit DK Hardware
  • ZoroNew

    Availability unknown

    $55.39Checked Nov 13
    Visit Zoro

Also available at

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Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt price history

Lowest price we've seen: $28.50 on Nov 13 at Woodson Lumber. Tracked across 13 stores since Nov 13.

What reviewers say

Owners of Knauf EcoBatt generally report less itching and dust than with conventional fiberglass and a batt that springs back into the cavity. Complaints center on the kraft facing tearing during stapling and on batts needing trimming for non-standard framing.

What people mention
  • Itch and dustPraisedUsers say the ECOSE binder makes the batts softer and less dusty to handle than standard fiberglass.
  • Facing durabilityCriticisedSome owners report the kraft facing tearing or pulling loose while stapling it to studs.
  • Fit and recoveryPraisedBatts are described as springing back to fill the cavity and staying put without sagging.
  • CuttingMixedThe 1 ft. facing marks help, but users still trim batts for 16 in. framing and around obstructions.
  • OdorPraisedBuyers note little or no chemical smell, which they link to the formaldehyde-free binder.

About the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt

These R-13 EcoBatt fiberglass insulation batts are pre-cut to fit 2x4 wall cavities. They help control heat flow and absorb sound. The kraft facing works as a vapor retarder with a permeance of 1.0 or less.

The batts are bonded with plant-based ECOSE Technology. They are formaldehyde-free and low-dust, and they contain recycled content. The product is GREENGUARD Gold certified.

The kraft facing is marked in 1 ft. increments to guide stapling and cutting. The pre-cut batts recover quickly and stay in the cavity. Each bag holds 12 batts and covers 116.25 sq. ft.

Insulation type
Fiberglass batt
R-value
R-13
Facing
Kraft faced (vapor retarder, permeance 1.0 or less)
Batt size
93 in. L x 15 in. W x 3.5 in. T (7.75 ft. x 15 in.)
Fits
2 x 4 walls
Batts per bag
12
Coverage per bag
116.25 sq. ft.
Weight
29.3 lb
Pack size
1 bag
Features
Soundproofing, vapor retardant, low dust, pre-cut
Install surfaces
Wood, metal, existing drywall, plywood, concrete
Locations
Between walls, interior walls, exterior walls, ceilings
Certification
GREENGUARD Gold
Binder

Questions and answers

What R-value is this insulation?
R-13, the standard value for a 2x4 wall cavity. It is not meant for ceilings or 2x6 walls, which need a higher R-value.
Does the kraft facing need to be stapled?
Yes. The facing is a vapor retarder and works only when stapled to the studs and sealed at seams and edges. Unfaced batts skip that step but give no moisture control.
How much does one bag cover?
Twelve batts at 15 in. by 93 in. cover 116.25 sq. ft. That is roughly one 8 ft. wall section per batt.
Will it fit 16 in. on-center framing?
The batts are 15 in. wide, sized for the cavity between studs. In 16 in. on-center walls you trim or compress the edges, which can slightly reduce performance.
How does it compare with mineral wool?
Fiberglass is lighter and easier to cut, and the kraft facing adds a vapor retarder. Mineral wool blocks sound and fire better and holds up to moisture, but it is heavier and denser.
Is it safe for indoor air?
It is formaldehyde-free and GREENGUARD Gold certified for low emissions. Wear gloves, eye protection and a mask while installing, as with any fiberglass.
Where is the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt cheapest?
At Woodson Lumber, for $28.50, 23% under what the other stores charge, as of our latest check.
What do buyers say about the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt?
Rated 4.8 out of 5 from 1 ratings.
Where can I buy the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt?
14 stores we checked sell it, including The Home Depot, Woodson Lumber, Family Hardware, Shell Lumber and Hardware, Do it Best.

Stores we've priced the Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt at

  • Ace Hardware deals and prices
  • Shell Lumber and Hardware deals and prices
  • The Home Depot deals and prices
  • True Value deals and prices
  • Walmart deals and prices
Plant-based ECOSE Technology, formaldehyde-free
Product code
505912
Item ref
B06VAK
  • Zoro deals and prices
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