A: It's 16" on center if your house is framed as such and these fit perfectly in between without squashing the cells which lowers the R value. I've personally used this product and it worked great. Are there alternatives in 2023? Yes, spray foam and fiber board but be prepared to pay for them
A: The product hasn't gotten smaller in width or thickness. If the product doesn't measure the dimension stated on the packaging, JM suggests returning it to the store so that the quality control can take place. The dimensions might also be off when the package is first opened because of the compression.
A: If you would like to speak to a JM technical specialist regarding "moisture", please contact us at 800-654-3103 option 1.
A: The more insulation the better just don't squish it. Its designed to work better as a fluffy blanket
A: Yes you can combine the batts. The faced product should be installed first with the facer towards the "heated" space. The unfaced batt can then be installed over the top.
A: Yes, when insulating exterior walls of bathrooms, the Kraft faced fiberglass batt insulation can help where condensation might be an issue. Please see our online guide for more assistance: https://www.jm.com/en/homeowner-insulation/how-to-install-your-insulation-/how-to-install-insulation-in-walls/
|Brand||Knauf Insulation||Owens Corning||Owens Corning||Johns Manville|
|Name||R-13 EcoRoll Kraft Faced Fiberglass Insulation Roll 3-1/2 in. x 15 in. x 32 ft.||R-30 Unfaced Fiberglass Insulation Roll 15 in. x 25 ft.||R-19 Kraft Faced Fiberglass Insulation Continuous Roll 15 in. x 39.2 ft.||R-13 Kraft Faced Fiberglass Insulation Roll 15 in. x 32 ft.|
Buy 20 or more $18.67
|Insulation Location||2x4 Wall,Between Walls,Ceiling Insulation,Exterior Wall,Interior Wall||Attic||2x6 Wall||2x4 Wall|
|Faced or Unfaced||Faced||Unfaced||Faced||Faced|
|Roll or Batt||Roll||Roll||Roll||Roll|
|Compatible Install Surface||Concrete,Existing Drywall,Metal,Plywood,Wood||Plywood||Plywood||Cement,Concrete,Copper Pipes,Existing Drywall,Existing Insulation,Fiberglass,Metal,PVC/CPVC Pipes,Pex Pipes,Plywood,Tile Flooring,Wood|
|Insulation Features||Formaldehyde Free,Friction Fit,Soundproofing Insulation,Vapor Retardant||Formaldehyde Free||Formaldehyde Free||Formaldehyde Free,Friction Fit,Soundproofing Insulation,Vapor Retardant|
|Product Thickness (in.)||3.5 in||9 in||6.25 in||3.5 in|
|THD SO SKU||583042||583042|
|View Product||View Product||View Product||View Product|