K-13 CELLULOSE INSULATION
K-13 spray-applied cellulose insulation is the go-to solution for projects requiring both thermal and acoustic control in large, open spaces. It’s commonly used in commercial, industrial, and institutional buildings where insulation is applied directly to exposed ceilings and structural surfaces. K-13 provides outstanding performance while also contributing to a clean, modern look—and it’s made from natural, sustainable materials.



Why Choose K-13 Insulation?
K-13 is more than just insulation—it’s a versatile system that improves energy efficiency, manages acoustics, and supports eco-friendly building goals. Here’s why it stands out:
- Exceptional Sound Control
The textured surface and open-cell structure absorb noise, making it perfect for gyms, auditoriums, offices, and more. - Thermal Efficiency
With an R-value of approximately 3.7 per inch, K-13 helps stabilize indoor temperatures and reduce HVAC loads. - Direct-to-Surface Application
K-13 adheres directly to concrete, steel, wood, and other substrates—no drywall or ceiling tiles needed. - Custom Colors & Finishes
Available in standard and custom colors to match your aesthetic and architectural needs. - Environmentally Friendly
Made primarily from recycled natural cellulose fibers and applied using a water-based adhesive.
How It Works
K-13 is spray-applied in an even layer onto exposed ceilings and overhead surfaces. It adheres directly and conforms to irregular shapes, beams, and ductwork, forming a seamless, acoustic-absorbing finish. It’s ideal for spaces where insulation needs to perform and be visible at the same time.
Ideal Applications
- Gymnasiums and fitness centers
- Churches and sanctuaries
- Auditoriums and theaters
- Warehouses and distribution centers
- Offices and conference rooms
- Parking garages
- Restaurants and breweries
- Open-plan commercial spaces
Cost & Efficiency Considerations
K-13 is a specialty insulation product designed for large, open spaces. While it may have a higher initial cost than traditional batt or blown-in materials, it combines thermal insulation, sound absorption, and a finished ceiling surface—eliminating the need for additional ceiling tiles or panels. That means fewer materials, less labor, and long-term energy savings.
Is K-13 the Right Fit for Your Project?
K-13 is ideal if you need:
- Sound absorption in open spaces
- Thermal control with minimal visual clutter
- A durable finish that won’t sag or settle
- Sustainability with LEED credits and recycled content
FAQs – K-13 Spray-Applied Cellulose Insulation
Q: What surfaces can K-13 be applied to?
K-13 can be sprayed directly onto concrete, steel, wood, gypsum, and other substrates—making it extremely versatile for all types of ceiling configurations.
Q: Is K-13 only for commercial use?
While it’s primarily used in commercial and industrial buildings, K-13 can be applied in large residential spaces like garages, workshops, or home theaters as well.
Q: How long does it last?
K-13 is highly durable and resistant to sagging, flaking, or cracking. When installed correctly, it can last the life of the building with minimal maintenance.
Q: Can it be painted or touched up later?
Yes—K-13 can be field-tinted or painted after installation with water-based paints. It’s also available in pre-tinted custom colors at the time of application.
Q: How does it help with sound control?
Its fibrous, porous texture traps and dissipates sound waves, making it highly effective for echo reduction and controlling reverberation in large, open rooms.
Q: Is it safe and non-toxic?
Yes—K-13 is made from non-toxic, recycled cellulose and applied using a water-based binder. It meets all fire safety and indoor air quality standards.
Q: What maintenance is required?
Very little! Occasional dusting or vacuuming may be needed in exposed industrial settings, but otherwise, K-13 is a low-maintenance, long-term solution.
Q: How thick should it be applied?
Thickness varies based on thermal and acoustic needs but typically ranges from 1″ to 3″. Our team will recommend the best thickness for your specific project.

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Hours
Monday – Friday: 9 AM – 5 PM
Saturday: Appointment Only
Sunday: Closed
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