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Deal.ai › Knauf
Knauf
Knauf 15 Kraft Faced Batt Fiberglass Insulation

Knauf 15 Kraft Faced Batt Fiberglass Insulation

4.8(75 ratings)

Best price now

$32.93at eBayChecked Nov 9

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Last seen at $32.93 at eBay on Nov 9.
  • Checked at 2 stores.

Our take on the Knauf 15 Kraft Faced Batt Fiberglass Insulation

Knauf 15 Kraft Faced Batt is a fiberglass insulation blanket with a kraft paper facing on one side. The facing acts as a vapor retarder and gives the batts enough stiffness to friction-fit between studs, joists and rafters without extra fasteners. It is GREENGUARD certified for low emissions, which matters for indoor air quality in living spaces. It is a standard choice for walls, floors and ceilings in wood-frame homes, and it competes with Owens Corning and CertainTeed on the same basics: thermal performance, fit and how cleanly it cuts.

Best forDIY wall and ceiling insulationWood-frame stud and joist cavitiesAttics and floors above garagesOwners who want a built-in vapor retarder
Pros
  • Kraft facing doubles as a vapor retarder
  • Stiff batts friction-fit between studs and joists
  • Cuts cleanly with a utility knife
  • GREENGUARD certified for low emissions
  • Fits standard 16- and 24-inch framing
Cons
  • Fiberglass requires gloves, goggles and a mask
  • Kraft facing is flammable and needs proper covering
  • Compressing the batt lowers its R-value
  • Faced side must face the warm, interior side

Knauf 15 Kraft Faced Batt Fiberglass Insulation prices at every store

  • Hamshawlumber.comNew

    In stock

    $89.33Checked Nov 9
    Visit Hamshawlumber.com
  • eBayNew

    Availability unknownSold by simsupply (99.7% positive, 162,700 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $32.93+ $13.21 shippingChecked Nov 9
    Visit eBay

Store links may earn us a commission.

Knauf 15 Kraft Faced Batt Fiberglass Insulation price history

Lowest price we've seen: $89.33 on Nov 9 at Hamshawlumber.com. Tracked across 1 store since Nov 9.

What reviewers say

  • 4.8 / 575 ratings

Owners rate it highly and describe it as easy to handle and cut, with batts that stay put in the cavity. Complaints center on the itch and dust of fiberglass and on facings that tear or arrive creased.

What people mention
  • InstallationPraisedOwners say the batts friction-fit and cut cleanly, so a wall or ceiling goes up fast.
  • Itch and dustCriticisedReviewers warn about fiberglass itch and dust and say gloves, goggles and a mask are a must.
  • FacingMixedThe kraft facing works as a vapor retarder, but some say it tears or arrives creased.
  • FitPraisedBatts are described as consistent in thickness and sized to standard framing.
  • HandlingCriticisedThe packs are heavy and awkward to carry and open.

Specifications

Thermal Type
Blanket
GREENGUARD Certified
Yes
Type
Thermal Type

Questions and answers

Does the kraft facing need to face a certain way?
Yes. The faced side goes toward the warm, interior side of the wall or ceiling. Facing it the wrong way traps moisture in the cavity.
Can I leave the kraft facing exposed?
No. The facing is flammable and building codes require it to be covered with drywall or another approved material in occupied spaces.
Can I compress the batts to fit?
Avoid it. Squeezing a batt into a thinner cavity reduces its insulating value. Cut it to fit the width instead.
Is it safe for indoor air quality?
It is GREENGUARD certified for low emissions. During installation, wear gloves, goggles and a respirator and ventilate the area.
How does it compare with unfaced batts?
The kraft facing adds a vapor retarder, which suits exterior walls in most climates. Unfaced batts are the better pick where a separate vapor barrier is already in place.
What tools do I need to install it?
A utility knife, a straightedge, gloves, goggles and a dust mask cover most jobs. A stapler helps secure the flanges on the facing.
Where is the Knauf 15 Kraft Faced Batt Fiberglass Insulation cheapest?
At eBay, for $32.93, as of our latest check.
What do buyers say about the Knauf 15 Kraft Faced Batt Fiberglass Insulation?
Rated 4.8 out of 5 from 75 ratings.
Where can I buy the Knauf 15 Kraft Faced Batt Fiberglass Insulation?
2 stores we checked sell it, including eBay, Hamshawlumber.com.

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