Description
Knauf EcoBatt R-19: The 2×6 Wall Batt for Remodels and Additions
Opening walls for a remodel, ADU or room addition is the one chance to insulate them properly. Knauf EcoBatt R-19 is about 6¼ inches thick, the full depth of a 2×6 stud cavity, so it fills the wall without being compressed. The ECOSE binder keeps odor and dust down, which matters when you are working inside an occupied home.
Specifications
| Brand | Knauf Insulation |
|---|---|
| Product line | EcoBatt with ECOSE Technology |
| R-value | R-19 |
| Thickness | About 6¼ in. |
| Common size | 15 x 93 in. precut, for 16 in. on-center studs |
| Facing | Kraft paper vapor retarder |
| Certifications | GREENGUARD Gold; UL-validated formaldehyde-free |
| Coverage | About 75 sq ft per bag (confirm on bag) |
Where to Use It
- 2×6 exterior walls in additions, ADUs and major remodels.
- Raised floors over crawl spaces, facing up toward the heated floor.
- Walls between the house and the garage.
Why Not R-13 or R-15 in a 2×6 Wall?
R-13 and R-15 batts are made for 2×4 walls. In a 2×6 cavity they leave an air gap that lets heat move freely. R-19 is matched to the 2×6 depth.
Buy It or Have It Installed
Order Knauf EcoBatt R-19 here, or let our licensed crew (CSLB #1139733) insulate your walls or crawl space floor. See all wall insulation or R-19 fiberglass insulation.
Knauf EcoBatt R-19 Kraft-Faced Fiberglass FAQ
- Is R-19 for 2×4 or 2×6 walls?
- 2×6 walls. At about 6¼ inches thick, R-19 matches the 5½-inch-deep 2×6 cavity once lightly fitted; 2×4 walls use R-13 or R-15.
- Which side does the kraft facing go on in a wall?
- Toward the interior, the heated side, stapled to the face or sides of the studs.




