15.25 in. width fits common 16 in. o.c. 2x6 stud bays with less edge gap
Key features
Kraft facing supports vapor-retarder strategy where your climate detail allows
Compression packaging and Next Gen fiber handling for faster, cleaner installs
Technical specifications
| R-Value | 21.0 |
|---|---|
| Thickness | 5.5 in |
| Width | 15.25 in |
| Length | 93.0 in |
| Coverage | 68.94 sq ft/pack |
| Material | Fiberglass (PINK Next Gen) with kraft vapor-retarder facing |
| 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 wall STC versus an empty cavity; final acoustic performance is assembly-dependent. |
| Density | Light-density flexible batt per ASTM C665 manufacturer Type I listings |
| Thermal conductivity | Nominal R-21 at full labeled thickness; see manufacturer TDS for tested conductivity values |
| Framing width | Sized for 16 in. on-center stud spacing in nominal 2x6 walls |
| Construction type | Wood-frame and light-gauge metal-frame cavity construction |
| Application area | Exterior/interior walls, floors, and roof/ceilings; interior side of basement and unvented crawlspace walls per code |
Product details
About 68.94 sq ft per bag (distributor-listed coverage). Primary use: nominal 2x6 walls at 16 in. on-center. When you are insulating 2x6 exterior or partition walls on 16 in. centers, small width errors add up fast: a batt that is too narrow leaves thermal shorts at stud edges, while one that fights the cavity slows the crew down.
This Owens Corning PINK Next Gen Fiberglas batt (BF107) is cut to 15.25 in. wide so it fills the common 14-1/2 in. stud bay for 16 in. o.c. framing, with a 5.5 in. thickness that matches nominal 2x6 depth for labeled R-21 performance at full thickness. The 93 in. length targets typical precut stud packs used on many residential jobs, so you spend less time trimming ends and re-stacking odd pieces. PINK Next Gen is engineered for softer feel, improved recovery, and less dust on the jobsite than older fiberglass generations, while the kraft facing provides a built-in Class I vapor retarder on the warm-in-winter side when you detail that way for your climate.
The product is manufactured to ASTM C665 and carries GREENGUARD certification with formaldehyde-free validation plus an EPD from UL Environment, which helps teams document sustainability and indoor air goals. Install per IECC and local code for facing orientation, maintain continuous air barriers at transitions, and avoid over-compression behind utilities or outlet boxes because compressed glass fiber loses effective R-value. Use the manufacturer data sheet for tested physical properties, coverage verification, and any jobsite-specific guidance before you bid or inspect.
BF107 is Owens Corning PINK Next Gen R-21 kraft-faced fiberglass sized for nominal 2×6 walls on 16 in. centers: 15.25 in. width fills the common 14-1/2 in. bay, 5.5 in. thickness preserves labeled R-value at full recovery, and the 93 in. length matches many precut stud packs so crews trim less. Next Gen fibers improve handling with less dust than legacy batts, while kraft facing supports Class I vapor-retarder detailing on the warm-in-winter side when your climate package requires it. Specify about 68.94 square feet per bag for takeoffs, add a real waste factor at openings, and keep batts out of compression at boxes and pipes because effective R-value drops when glass fiber is squeezed.
The product is manufactured to ASTM C665 and carries GREENGUARD validation plus an EPD from UL Environment for indoor air and sustainability submittals. Always download the current manufacturer data sheet for tested properties, ICC construction-type language for faced products, and installation limits before inspection.
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
Which way should the kraft facing be installed?
Which way should the kraft facing be installed?
Facing direction is a climate and assembly decision. In many heating-dominated climates the facing goes toward the warm-in-winter side, but mixed and humid cooling climates can differ under IECC and local amendments. Always follow current code, the project vapor-control strategy, and Owens Corning installation literature.
How many bags do I need for my wall square footage?
How many bags do I need for my wall square footage?
Divide your net insulated wall area by the labeled square feet per package (about 68.94 for BF107) and add a waste factor for cuts, openings, and repack scrap—most crews use five to ten percent unless the plan says otherwise.
Will compressing the batt behind pipes or outlets hurt performance?
Will compressing the batt behind pipes or outlets hurt performance?
Yes. R-value is thickness-dependent for fiberglass. Split batts around obstructions, knife-cut relief, or use manufacturer-recommended techniques so the insulation recovers to full depth instead of packing dense wads.
Is kraft-faced insulation the same as an air barrier?
Is kraft-faced insulation the same as an air barrier?
No. The facing is primarily a vapor retarder and handling layer. You still need a designed air barrier system at the sheathing plane or interior depending on the assembly, with sealed transitions at rim, windows, and penetrations.