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Model # K1242

Store SKU # 1001404760

R-30 Kraft Faced Fiberglass Insulation Batt 16 in. W x 48 in. L

  • R-30 kraft faced batt for use in wood-framed attics and ceilings
  • Provides a built-in vapor barrier for moisture control
  • Improves energy efficiency and provides sound control
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Product Details

JM Kraft-faced Formaldehyde-free™ fiberglass insulation comes in a range of R-values, is ideal for moisture control in exterior walls and provides excellent temperature and noise control. Our R-30 Kraft-faced insulation is formaldehyde free fiberglass insulation protected on one side with moisture resistant kraft facing. R-30 Kraft-faced batts come in pre-cut 48 in. lengths for easy installation in 16 in., 2 in. x 10 in. attics and ceilings. One Bag covers 58.67 sq. ft. Kraft-faced batts are great for new construction, remodels, walls, floors, ceilings, basements, attics and crawlspaces, and are available for wood or steel stud framing. JM insulation is made from bonded glass fibers that are dimensionally stable and will not slump within the cavity, settle or break down during normal applications.
  • For use in wood-framed attics and ceilings
  • Batts are precut for use in standard 16 in. on-center stud spacing
  • Facing provides built-in vapor retarder for moisture control
  • Improves energy efficiency and provides sound control
  • Formaldehyde-free™ insulation
  • Great for residential homes and commercial buildings
  • For use in interior and exterior walls, floors, ceilings and basement walls
  • Also great in attics, crawl spaces and above suspended ceilings
  • Absorbs sound for more peace and privacy
  • Cost-effective solution for a more comfortable home
  • Safe product – no health risk
  • Reduce unwanted noise with insulation
  • JM is a partner of the seal and insulate with ENERGY STAR program
  • Click here to learn more about Eco Options and Energy Efficiency
  • Return Policy
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Specifications

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Questions & Answers

16Questions
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Q:Does this product have a manufacturers certification statement for meeting the requirement for the 2023 Energy Efficient Home Improvement Tax Credit?
by|Jun 13, 2023
1 Answer
Answer This Question

A:  Please review the TAX CREDIT Webinar that can be located here: https://www.jm.com/en/building-insulation/building-insulation-intel-library/?nocache=true OR here: chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.jm.com/content/dam/jm/global/en/building-insulation/Files/BI%20Toolbox/JM%20Can%20Help%20You%20Earn%20Federal%20Tax%20Credits.pdf If assistance is still needed, please contact us at 800-654-3103 option 1.

by|Jun 14, 2023
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    Q:Can you use this (K-1242) R-30 for a half wall on a high deck enclosure?
    by|May 10, 2023
    1 Answer
    Answer This Question

    A:  If the product is properly covered by the prescribed thermal and ignition barrier (check you local building code) it can be used in this application. The determination of using a faced product or not would also come from your building code. If you have any further questions, please contact JM's technical support at 800-654-3103 option 1.

    by|May 16, 2023
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      Q:How many rolls come in 1 pallet?
      by|Dec 1, 2022
      2 Answers
      Answer This Question

      A:  For this product, there are 4 bags per unit and 11-pieces in each bag. JM doesn't sell this product by the pallet to customers. You can buy the product if that product is stock at their local store and can buy 1 bag or more based on availability.

      by|Dec 6, 2022

        A:  There are 8 rolls per pallet, as of this posting in December 2022.

        by|Dec 2, 2022
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          Q:What is the physical size of one (1) package?
          by|Oct 27, 2022
          2 Answers
          Answer This Question

          A:  The bag dimensions for U1343 R-30 product would be approximately the following: Length: 48in Height: 16in Width: 15-16in

          by|Oct 28, 2022

            A:  4 feet

            by|Nov 2, 2022
              Showing 1-4 of 16
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              Customer Reviews

              4.8 out of 5
              (114)
              • 4.8
                out of 114 reviews
              • 100% recommend this product
              Filter by:
              Showing 1-10 of 114 reviews
              It's like sweater for our attic. My husband and I reconstructed our living room and we were freez...
              It's like sweater for our attic. My husband and I reconstructed our living room and we were freezing until we added the John's Manville and we felt an instant indoor temperature change.
              by
              • Verified Purchase
              • Recommended
              Package easy to handle. Compressed down into 2x8 finished porch joists. Good quality product. ...
              Package easy to handle. Compressed down into 2x8 finished porch joists. Good quality product. Ran out and had to finish with cotton candy brand.
              by
              • Verified Purchase
              • Recommended
              by
              • Verified Purchase
              by
              • Verified Purchase
              Worked as described. Just wish the Batts were longer.
              by
              • Verified Purchase
              by
              • Verified Purchase
              The product works well!...
              The product works well!
              by
              • Verified Purchase
              by
              • Verified Purchase
              Great product will buy again. It’s easy to install 7...
              Great product will buy again. It’s easy to install 7 pieces for a 14 1/2” wall studs
              by
              • Verified Purchase
              Missing a piece
              Bought 10 bundles... each bundle is supposed to have 11 pieces. 2 of the bundles only had 10
              by
              Response from JohnsManvilleTeamDec 28, 2022
              Thank you for letting us know - we will be sure to let the appropriate people know.
                • Recommended
                Showing 1-10 of 114 reviews

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                Price
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                Ratings
                (136)
                (89)
                (114)
                Insulation LocationAttic, Ceiling Insulation, Interior Ceiling, Knee WallAttic, Ceiling Insulation, Interior Ceiling, Knee WallAttic, Ceiling Insulation, Floor
                Insulation R-ValueR30R38R30
                Faced or UnfacedFacedFacedFaced
                Product Thickness (in.)10 in12 in10.25 in
                Roll or BattBattBattBatt
                Compatible Install SurfaceCement, Concrete, Copper Pipes, Existing Drywall, Existing Insulation, Fiberglass, Metal, PVC/CPVC Pipes, Pex Pipes, Plywood, Tile Flooring, WoodCement, Concrete, Copper Pipes, Existing Drywall, Existing Insulation, Fiberglass, Metal, PVC/CPVC Pipes, Pex Pipes, Plywood, Tile Flooring, WoodCement, Concrete, Existing Drywall, Existing Insulation, Fiberglass, Metal, PVC/CPVC Pipes, Pex Pipes, Plywood, Tile Flooring, Wood
                Product Length (ft.)4 ft4 ft4 ft
                Insulation FeaturesFormaldehyde Free, Vapor RetardantFormaldehyde Free, Vapor RetardantFormaldehyde Free, Friction Fit, Soundproofing Insulation, Vapor Retardant
                Pack Size111
                View ProductView ProductView Product