R-13 unfaced batt sized 15 × 93 in. per IDI for 2×4 cavity schedules
Key features
93 in. length for modular wall heights aligned with pre-cut studs
Next Gen handling per manufacturer line for lower-dust installs
Technical specifications
| R-Value | 13.0 |
|---|---|
| Thickness | 3.5 in |
| Width | 15.0 in |
| Length | 93.0 in |
| Coverage | 106.5 sq ft/pack |
| Material | Fiberglass (PINK Next Gen), unfaced |
| Fire rating | ASTM C665; unfaced glass fibers classified noncombustible per ASTM E136 in manufacturer documentation. Unfaced PINK Next Gen acceptable ICC construction types I through V when installed per Owens Corning literature. |
| 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 2×4 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 106.5 square feet per package (IDI-listed coverage). Primary use: nominal 2×4 walls, floors, and ceilings on 16 in. on-center framing where R-13 unfaced cavity fill is specified and 93 in. lengths match pre-cut stud workflows.
E51 lists 3.5 in. labeled thickness, 15 in. width, and 93 in. length on IDI Insulation. Unfacing keeps vapor control explicit: add approved interior or exterior vapor strategies per IECC and local amendments rather than assuming cavity insulation defines the moisture profile alone.
IDI markets GREENGUARD Gold certification for this listing and describes stiff batts that friction-fit without stapling in typical cavity installs—still verify overhead supports and strapping where your QA plan requires them.
Use the PINK Next Gen Fiberglas insulation product data sheet linked from IDI for tested physical properties and code references. Compare coverage to M62 before substituting on the same purchase order line.
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
E51 versus M62—both R-13 unfaced for 2×4?
E51 versus M62—both R-13 unfaced for 2×4?
Both target 2×4 cavity insulation per IDI, but M62 is 16 × 96 in. while E51 is 15 × 93 in. with different listed coverage—match SKU to plate height and stud module.
How many bags should I buy?
How many bags should I buy?
Divide net insulated area by about 106.5 square feet per package and add a waste factor for openings and cuts.
Is a poly vapor barrier required with E51?
Is a poly vapor barrier required with E51?
That depends on climate zone and assembly—not on the insulation SKU alone. Follow IECC and your approved details.
Where is the technical data sheet?
Where is the technical data sheet?
IDI links the PINK Next Gen Fiberglas insulation product data sheet in the Resources section for this product family.