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CertainTeed R-19 Unfaced Fiberglass Insulation Batts

CertainTeed R-19 Unfaced Fiberglass Insulation Batts

Last price we saw

$240.68at Insulation4US, last seen Nov 4

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Our take on the CertainTeed R-19 Unfaced Fiberglass Insulation Batts

CertainTeed R-19 unfaced fiberglass batts are 6.25-inch-thick insulation for 2x6 wall cavities and attic floors. Unfaced batts have no vapor retarder, so they suit walls where a separate vapor barrier or house wrap handles moisture control. R-19 is a common upgrade over R-13 in exterior 2x6 walls. No current price was provided, so compare store quotes before buying.

Best forExterior 2x6 wall cavitiesAttic floor and knee-wall insulation
DIY installers with basic framing skills
Garages and workshops needing a moderate R-value
Pros
  • R-19 in a 6.25-inch thickness fits standard 2x6 stud bays
  • Unfaced design lets you add your own vapor barrier where code requires it
  • Fiberglass batts are inexpensive per square foot
  • Cuts with a utility knife and friction-fits between studs
  • Widely stocked and easy to replace in small sections
Cons
  • No facing, so it does not stop air or vapor on its own
  • Fiberglass needs gloves, long sleeves and a mask during install
  • Compressing the batt lowers its R-value
  • Not ideal for irregular or cramped cavities where batts leave gaps
  • Must be covered with drywall or another code-approved barrier in living spaces

CertainTeed R-19 Unfaced Fiberglass Insulation Batts prices at every store

  • Insulation4USCheck price at Insulation4US

CertainTeed R-19 Unfaced Fiberglass Insulation Batts price history

Lowest price we've seen: $240.68 on Nov 4 at Insulation4US. Tracked across 1 store since Nov 4.

Specifications

Material Facing
Un-Faced
Product Thickness
6.25"
R Value
R-19

Questions and answers

Is R-19 enough for a 2x6 exterior wall?
R-19 is a common choice for 2x6 walls in moderate climates and meets many local codes. Colder zones often call for R-20 or R-21, so check your local energy code before buying.
Do I need a vapor barrier with unfaced batts?
Yes, in most exterior wall and ceiling applications. Unfaced batts rely on a separate vapor retarder or sealed drywall to control moisture, so confirm the assembly your code requires.
How much does a bundle cover?
Coverage depends on batt width and length, which vary by SKU. Check the bag's square-foot rating and buy about 10 percent extra for cuts and waste.
Can I use these in an attic?
Yes, unfaced R-19 works well on an attic floor over existing insulation. Keep the vented space at the eaves clear and do not compress the batts.
Is R-19 better than R-13?
R-19 gives roughly 45 percent more thermal resistance than R-13 and is the usual pick for 2x6 framing. R-13 is meant for 2x4 walls.

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