93 in. length aligned with pre-cut stud packs and modular wall heights
Key features
Kraft facing for coordinated vapor-retarder strategies when details allow
R-21 labeled performance for nominal 2×6 walls on 16 in. o.c.
Technical specifications
| R-Value | 21.0 |
|---|---|
| Thickness | 5.5 in |
| Width | 15.0 in |
| Length | 93.0 in |
| Coverage | 67.81 sq ft/pack |
| Material | Fiberglass (PINK Next Gen), kraft-faced |
| Fire rating | ASTM C665; glass fibers ASTM E136 noncombustible when unfaced. Kraft facing is combustible—orient facing per IECC, IRC, and local amendments; kraft-faced PINK Next Gen acceptable ICC construction types III, IV, and V per OC literature. |
| Sound rating | Cavity-fill fiberglass improves typical wall STC versus an empty cavity; assembly STC depends on studs, layers, and openings. |
| Density | Light-density flexible batt per ASTM C665 manufacturer listings; see TDS for product-specific values. |
| Thermal conductivity | See manufacturer TDS (ASTM C518) for tested thermal conductivity at labeled R-value. |
| 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, roof/ceilings; interior side of basement and unvented crawlspace walls per code and OC literature. |
Product details
About 67.81 square feet per package (IDI-listed coverage). Primary use: nominal 2×6 exterior or partition walls on 16 in. on-center framing where the energy model calls for R-21-class cavity fill and the specifier wants kraft-faced batts at 93 in. length for commercial pre-cut stud ordering and eight-foot-ish modules.
ME23 packages PINK Next Gen Fiberglas at 5.5 in. labeled thickness for R-21 performance, 15 in. width for the common 14-1/2 in. clear bay, and 93 in. length as the distributor-listed module. Kraft facing supports Class I vapor-retarder strategies when oriented per code—pair with disciplined air sealing at rim, sill, and penetration clusters.
Compared with 105 in. tall-wall SKUs, 93 in. batts can reduce scrap on strictly eight-foot modules but increase vertical joints on taller stacks—match length to your plate heights after tolerance.
Manufactured to ASTM C665; glass fibers are treated as noncombustible per ASTM E136 when unfaced in manufacturer documentation, while kraft facing is combustible—follow OC guidance for protection and hot penetrations. Kraft-faced PINK Next Gen is listed for ICC construction types III, IV, and V when used as documented. GREENGUARD certification with formaldehyde-free validation and a UL Environment EPD support typical submittals.
When estimators compare ME23 to BF65, remember BF65 is a 105 in. tall-wall SKU at different takeoff math—do not interchange coverage constants.
Submittal discipline: keep the distributor-listed dimensions (5.5 in. × 15.0 in. × 93.0 in.) and about 67.81 square feet per package attached to the same SKU on purchase orders, delivery tickets, and photos for QA. Authoritative tested language and code-oriented statements belong in the current manufacturer technical data sheet at https://www.idi-insulation.com/media/pdfresources/1004347_data_sheet.pdf.
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 (formaldehyde-free validated), UL Environment EPD, California Title 24 Article 3 insulating materials
Frequently asked questions
ME23 versus BF65—both are kraft R-21 for 2×6 walls?
ME23 versus BF65—both are kraft R-21 for 2×6 walls?
Both target nominal 2×6, 16 in. o.c. cavities per distributor listings, but BF65 is 105 in. long while ME23 is 93 in. long with different package coverage. Match length to plate height and verify square feet per bag on the label.
ME23 versus BU107 at similar R-21?
ME23 versus BU107 at similar R-21?
BU107 is unfaced at 15.25 in. × 93 in. per IDI; ME23 is kraft-faced at 15 in. × 93 in. Choose based on vapor strategy and verified field dimensions.
How should I estimate bags?
How should I estimate bags?
Divide net insulated wall area by about 67.81 square feet per package and add a waste factor for openings and cuts.
Is GREENGUARD documentation available?
Is GREENGUARD documentation available?
IDI lists GREENGUARD certification with formaldehyde-free validation for this product family—download the linked technical data sheet for submittal language.