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PINK Next Gen™ Flame Spread 25 | Owens Corning Insulation
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FSK Insulation for Easier Cleanup, Fast Installation

PINK Next Gen™ Fiberglas™ Flame Spread 25 is a low flame spread fiberglass FSK insulation that installs with the speed and precision PINK Next Gen™Fiberglas™ insulation is known for. Designed for use in wall, floor, and roof/ceiling assemblies where insulation may be left exposed, or where a vapor-retarder facing is required, this FSK-faced insulation provides reliable thermal and acoustic performance and is Code-compliant for all ICC building types.

Benefits of This Fiberglass Insulation:

  • Proven Performance: Provides proven thermal control and acoustical performance.
  • Reliable Fit: Maintains shape over time without settling or slumping in wall cavities.
  • Cleaner Handling: Produces less dust for a more comfortable installation experience.
  • Efficient Packaging: Compression-packed for easier handling and job site transport.
  • No Thermal Barrier Required: Can be left uncovered in approved assemblies.
  • Code Compliant: Meets ASTM C665 and Title 24 standards; approved for ICC Types I–V.
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PINK Next Gen™ Flame Spread 25 Product Image

What is FSK insulation?

FSK insulation, also known as Foil-Scrim-Kraft insulation, is a type of faced insulation that features a reinforced foil facing to improve foil facing that meets Flame Spread/Smoke Developed rating to be left exposed. FSK faced insulation is insulation that has a facing on one side that is used to provide a vapor retarder and may be used to secure the insulation into the cavity. FSK stands for foil, scrim, and kraft, which refers to the combination of aluminum foil, fiberglass scrim (a reinforcing mesh that adds strength and durability), and kraft paper. This combination creates a durable facing for the fiberglass insulation that helps resist water vapor and fire.


Building Enclosure Solutions

Owens Corning® Enclosure Solutions offers one of the largest portfolios of commercial insulation products for walls, roofs, and below-grade foundations. Engineered with Owens Corning technical expertise and supported by Building Science, Owens Corning® Enclosure Solutions deliver buildings that perform without compromising design.

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Certifications

Energy Star

Energy Star

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SCS Recycled Content

UL Greenguard Gold

UL Greenguard Gold

Performance Attributes

PINK Next Gen™ Fiberglas™ Flame Spread 25 delivers reliable thermal and acoustic performance with materials that meet stringent safety and building standards, including compliance with ASTM C665 and certification under California Title 24, Chapter 12-13, Article 3 (“Standards for Insulating Material”).

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Clean, Fast Install

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99% Safer Fire Performance

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Proven Value

Technical Information

Availabilities

APPLICATIONWIDTHLENGTHTHICKNESS

r-value3

Metal Frame Walls
FSK16"96"3.5"13
FSK24"96"3.5"13
FSK16"96"6.5"

194

FSK24"96"6.5"

194

FSK16"96"6"21
Floor and Ceiling
FSK16"48"10"30
FSK24"48"10"30
3 Tested per ASTM C518.
4 Delivers R17 when installed in a 5.5” deep cavity. Delivers R18 when installed in a 6” deep cavity.

Applications

This FSK fiberglass insulation can be used in construction across a variety of framing types, including wood and metal assemblies. PINK Next Gen™ Flame Spread 25 installs easily and is commonly used in wall, floor, and roof/ceiling assemblies. This FSK batt insulation is suitable for areas where the insulation may be left exposed or where a low flame-spread vapor-retarder facing is required. It can also be used in concealed applications for noncombustible construction and attached directly to surfaces with impaling pins.

  • Ceilings
  • Floors
  • Walls

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Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative.