105 in. length for taller 2×4 walls with fewer vertical butt joints
Key features
Large ~131 sq ft package coverage for long corridor and production wall runs
Kraft-faced R-13 for code-coordinated vapor retarder strategies when allowed
Technical specifications
| R-Value | 13.0 |
|---|---|
| Thickness | 3.5 in |
| Width | 15.0 in |
| Length | 105.0 in |
| Coverage | 131.25 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 2×4 walls; verify tall-wall plate heights before truck counts. |
| 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 131.25 square feet per package (IDI-listed coverage). Primary use: nominal 2×4 exterior or partition walls on 16 in. on-center framing where the specifier wants kraft-faced R-13 cavity fill and prefers 105 in. lengths to reduce vertical joints on nine- and ten-foot stud stacks.
M92 packages PINK Next Gen Fiberglas at 3.5 in. labeled thickness for R-13 performance, 15 in. width for the common 14-1/2 in. clear bay, and 105 in. length for tall first-floor modules. Kraft facing integrates a vapor-retarder layer—orient it per IECC, IRC, and local amendments relative to the conditioned space and any exterior continuous insulation.
High square feet per package changes logistics: plan slit bundles, in-unit staging, and hoist paths on multifamily decks the same way you would for other large-pack batts.
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.
R-13 is a common prescriptive cavity target in many 2×4 wall tables—still confirm the adopted IECC cycle and your jurisdiction’s amendments rather than assuming interchangeability with higher-R SKUs.
Submittal discipline: keep the distributor-listed dimensions (3.5 in. × 15.0 in. × 105.0 in.) and about 131.25 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/1000178_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
M92 versus M13-style shorter kraft batts at R-13—what changes?
M92 versus M13-style shorter kraft batts at R-13—what changes?
Length and package coverage change takeoff math and jobsite handling. M92 is a 105 in. tall-wall SKU with distributor-listed ~131.25 sq ft per package—always match SKU to plate height and waste plan.
Is R-13 enough for my climate zone’s exterior walls?
Is R-13 enough for my climate zone’s exterior walls?
Depends on the adopted IECC or performance model. Use M92 where R-13 cavity fill is code-compliant for your assembly; upgrade R-value if prescriptive tables require more.
How many bags for a tall corridor?
How many bags for a tall corridor?
Divide net insulated wall area by about 131.25 square feet per package and add a realistic waste factor for door bucks, corners, and mechanical chases.
Can I leave kraft facing exposed toward a garage?
Can I leave kraft facing exposed toward a garage?
Treat exposed facing like any other combustible layer in the assembly—follow IRC fire separation, ignition barrier, and occupancy separation requirements for your jurisdiction.