Owens Corning FSK Insulation| Owens Corning Insulation
Upgrade your building's thermal performance and fire safety with Owens Corning's FSK (Foil-Scrim-Kraft) faced fiberglass insulation. Engineered for both residential and commercial applications, these insulation batts offer superior thermal resistance, effective moisture control, and a Flame Spread rating of 25, ensuring compliance with stringent fire safety standards
What is FSK Insulation?
FSK insulation stands for Foil-Scrim-Kraft faced insulation. It’s a type of fiberglass batt or blanket insulation that is laminated with a reinforced facing material. This facing includes aluminum foil (for heat reflection), scrim (a fiberglass mesh for durability), and kraft paper (for structure). The facing acts as a vapor retarder, offering moisture control, enhanced durability, and improved fire resistance.
Often used in commercial and residential applications, FSK insulation is ideal for environments where insulation may be left exposed, such as basements, warehouses, mechanical rooms, or attics.
Types of Products and Applications
Our Owens Corning FSK insulation product types come in various R-values to suit different thermal requirements:
- R-13: These insulation products are Suitable for walls, floors, and ceilings in moderate climates, offering a balance between performance and thickness.
- R-19: These insulation products are Ideal for enhancing energy efficiency in residential and commercial buildings, commonly used in walls and floors.
- R-21: These insulation products provide higher thermal resistance, making it suitable for areas with more severe weather conditions or places requiring enhanced energy conservation.
R-30 and R-38: Designed for extreme climates and areas requiring high thermal resistance, such as attics and roofs, ensuring optimal energy savings and thermal comfort.
Benefits of Owens Corning FSK Insulation
- Enhanced Fire Resistance: Owens Corning FSK-faced batts meet a Flame Spread Rating of 25, complying with ASTM E84 standards, making them suitable for exposed installations that require fire-rated insulation.
- Vapor Barrier Performance: The foil-scrim-kraft facing prevents moisture ingress, helping to reduce the risk of condensation, mold, and mildew—especially in humid environments.
- Improved Thermal Efficiency: With high R-values ranging from R-13 to R-38, FSK insulation enhances energy efficiency by reducing heat loss or gain through walls, floors, and roofs.
- Acoustic Comfort: It also offers excellent sound-dampening properties, making it ideal for reducing noise transfer between rooms or from outside sources.
Durability & Aesthetic Finish: The reinforced facing is tear-resistant and suitable for exposed applications, giving a cleaner and more professional look compared to unfaced insulation.
Commercial and Residential Applications
Owens Corning FSK insulation is designed to perform in both commercial and residential environments, offering thermal control, fire safety, and moisture resistance where it matters most.
Commercial Applications
In commercial insulation settings, FSK insulation is frequently used in:
- Exposed ceiling assemblies in warehouses, factories, and retail units for commercial insulation.
- Metal-framed wall systems in offices and commercial buildings require commercial insulation.
- Mechanical rooms and ducting, where fire-rated insulation is required
Commercial attics and roof spaces, ensuring thermal efficiency and code compliance
It is Class A fire rating (Flame Spread 25) and durable facing make it ideal for areas where insulation must be visible yet compliant with building codes.
Residential Applications
For homes or residential insulation, Owenscorning FSK insulation is commonly installed in:
- Attics and loft spaces for improved energy savings temperature control, and residential insulation.
- Basements and crawl spaces, where moisture control is essential
- Interior garage ceilings with living space above
Wall cavities in colder climate zones where higher R-values are needed
Its ability to serve as both a thermal barrier and vapor retarder makes it especially beneficial in areas prone to humidity and temperature fluctuations.
How to Choose the Right FSK Insulation
Selecting the right Owens Corning FSK insulation product depends on your project’s needs. Here’s what to consider:
R-Value Requirement
Match the insulation’s R-value to your local building regulations and the thermal performance needed for your climate zone.
- R-13 to R-19 → Best for walls and moderate climate zones.
- R-21 to R-30 → Ideal for colder areas or floors.
R-38 → Recommended for attics in extreme climates.
Installation Type
Decide if the insulation will be exposed or covered. FSK-faced insulation is perfect for exposed use due to its flame spread rating and tidy finish.
Vapor Control Needs
If you’re insulating a moisture-prone area like a basement or crawl space, the FSK facing adds valuable vapor resistance.
Building Use (Residential vs Commercial)
Higher R-values and fire-rated performance make FSK insulation particularly suitable for commercial projects where compliance is essential.
Fiberglass Board Vs FSK Boards
While both fiberglass boards and FSK boards provide excellent thermal insulation, the key difference lies in the facing. Standard fiberglass boards are typically unfaced and used where no additional vapor or fire protection is needed. In contrast, FSK (Foil-Scrim-Kraft) boards feature a laminated facing that acts as a vapor barrier and offers a flame spread rating of 25, making them suitable for exposed applications and areas with high moisture or fire safety requirements. FSK boards combine the core thermal performance of fiberglass with added resistance to humidity, radiant heat, and flames, making them ideal for both residential and commercial spaces that demand higher protection and durability.
How FSK-Faced Insulation Provides a Complete Insulation Solution
FSK-faced insulation products offer one of the most effective insulation solutions for both residential and commercial environments. By combining the thermal performance of fiberglass with a durable foil-scrim-kraft facing, it addresses multiple building challenges in a single product. These insulation solutions are especially valuable in areas where heat retention, moisture control, and fire safety are all essential.
The foil layer reflects radiant heat, the kraft paper acts as a vapor retarder, and the scrim reinforcement provides added durability, making it suitable for exposed installations. These built-in features allow FSK insulation to outperform standard batts in demanding conditions. Whether you're upgrading an attic, insulating a warehouse ceiling, or lining a mechanical room, FSK-faced products deliver multi-functional insulation solutions that meet modern energy codes.
Thanks to its flame spread rating of 25, FSK insulation is also approved for exposed use, offering a clean and professional finish. For builders, architects, and homeowners alike, choosing Owens Corning FSK-faced insulation means choosing insulation solutions that go beyond just temperature control—they protect, seal, and insulate with lasting reliability.
FSK-faced insulation is a trusted choice for industrial environments requiring dependable enclosure solutions. Whether you're insulating pipe coverings, ductwork, or mechanical rooms, this fiberglass board-based product delivers excellent thermal resistance and moisture control. Its reinforced foil-scrim-kraft facing makes it ideal for use in systems with tight bends or varying radius, offering a snug fit without compromising performance. Installers often find that FSK insulation not only improves energy efficiency but also meets fire safety codes for exposed applications, making it an all-in-one solution for demanding industrial settings.
Why Choose Insulation4US?
At Insulation4US, we don’t just sell insulation — we provide complete insulation solutions backed by expert advice and unmatched customer service. Here's why thousands of homeowners, contractors, and building professionals trust us:
- Premium Brands: We stock only top-tier products like Owens Corning FSK insulation, known for quality, performance, and compliance with fire and energy codes.
- Fast, Reliable Delivery: With a robust supply chain and nationwide delivery network, your insulation materials arrive on time at your location, every time.
- Expert Support: Our knowledgeable team is here to help you select the right insulation solutions for your project. Need help? Call, chat, or email us — we’re always happy to assist.
- Competitive Prices: We offer great value without compromising on quality, helping you stay on budget without cutting corners.
- Hassle-Free Shopping: With a user-friendly website, detailed product pages, and secure checkout, buying insulation online has never been easier.
When you choose Insulation4US, you're not just getting top-rated products — you're gaining a partner committed to your project’s success.