Kraft-faced R-19 for coordinated vapor-retarder strategies when details allow
Key features
93 in. length for modular wall heights and pre-cut stud workflows
Next Gen handling per manufacturer line for cleaner installs
Technical specifications
| R-Value | 19.0 |
|---|---|
| Thickness | 6.5 in |
| Width | 15.0 in |
| Length | 93.0 in |
| Coverage | 77.5 sq ft/pack |
| Material | Fiberglass (PINK Next Gen), kraft-faced |
| Fire rating | ASTM C665 Type I; glass fibers ASTM E136 noncombustible when unfaced. Kraft facing is combustible—follow OC guidance for ICC construction types and rated assemblies. |
| Sound rating | Cavity-fill fiberglass improves typical assembly STC versus an empty cavity; final acoustic performance is assembly-dependent. |
| Density | Light-density flexible batt per ASTM C665 manufacturer listings; see TDS for product-specific values. |
| Thermal conductivity | Nominal R-value at labeled thickness; see manufacturer TDS (ASTM C518) for tested conductivity. |
| Framing width | 15 in. width for 16 in. on-center stud spacing in nominal 2×6 walls |
| Construction type | Wood-frame and light-gauge metal-frame cavity construction |
| Application area | Wood- and metal-framed walls, floors, and roof/ceilings; interior side of basement and unvented crawlspace walls per code and Owens Corning literature. |
Product details
About 77.5 square feet per package (IDI-listed coverage). Primary use: nominal 2×6 wood-framed exterior or interior walls, floors, and ceilings where R-19 kraft-faced batts match the module and the vapor-control strategy.
E61 lists 6.5 in. labeled thickness, 15 in. width, and 93 in. length on IDI Insulation. Kraft facing supplies a Class I vapor-retarder layer on the appropriate side of the assembly when your hygrothermal plan uses interior kraft—orient facing per IECC, IRC, and local amendments rather than guessing at rough-in.
IDI markets GREENGUARD Gold certification and Next Gen handling for this listing. Field execution still requires staple discipline, full cavity contact without over-compression, and approved thermal barriers over facing because kraft is combustible.
Use the PINK Next Gen Fiberglas insulation product data sheet linked from IDI for tested values and code language. Compare with unfaced E55 at the same listed dimensions when the only change should be facing—not coverage math from a different SKU.
Documents & certifications
Technical data sheet
Manufacturer-tested R-value, coverage, fire notes, and handling—use for submittals, RFIs, and field QA.
Download PDF (opens in new tab)Certifications & compliance
GREENGUARD Gold certified per IDI product listing; UL Environment EPD per manufacturer family documentation; California Title 24 Article 3 insulating materials where applicable.
Frequently asked questions
E61 versus E55 at the same listed size?
E61 versus E55 at the same listed size?
E61 is kraft-faced; E55 is unfaced at the same distributor-listed 6.5 × 15 × 93 in. geometry per IDI. Pick based on whether factory kraft belongs in your vapor-control assembly.
Which way should kraft face?
Which way should kraft face?
Facing direction follows climate, assembly, and code. Follow IECC, IRC, local amendments, and the project drawings—not a generic rule of thumb alone.
How many bags for my walls?
How many bags for my walls?
Divide net insulated wall area by about 77.5 square feet per package and add a waste factor for openings and cuts.
Is the fiberglass core the same as the facing for fire reporting?
Is the fiberglass core the same as the facing for fire reporting?
No. Glass fiber insulation is treated as noncombustible per ASTM E136 in manufacturer documentation when unfaced; kraft facing is combustible and must be covered per code.