Duct Insulation Solutions

Cork spray duct insulation enhances HVAC ducting’s thermal and acoustic performance. This process uses a mixture of natural cork granules, water-based binders, and pigments, applied directly to duct surfaces through a spray-on method.

The result is a seamless, breathable cork coating that provides excellent thermal insulation and resists mould and mildew growth. Unlike traditional foam or fiberglass insulation, cork spray creates a flexible yet durable thermal barrier over the duct liner, reducing heat loss, improving system efficiency, and enhancing home insulation.

Cork insulation, with its cellular structure that traps air, is one of the most effective natural materials for HVAC systems. This high efficiency thermal insulator helps regulate air temperature throughout the ductwork, reducing thermal bridges and energy loss.

Cork coatings are easy to install, flexible, and adhere to metal, concrete, or other building materials. When applied to insulation for your building, it reduces the risk of air contamination while insulating the ducts. HVAC ducting and cork insulation provide consistent temperature regulation, prevent mildew, and deliver high thermal resistance—all with minimal maintenance.

Cork is a highly effective insulator because of its natural cellular matrix. These air-filled cells provide thermal and acoustic insulation properties, making cork ideal for quiet and energy-efficient HVAC systems.

• Thermal properties: Reduce heat loss and improve ducts’ overall thermal insulating
• Acoustic properties: Absorb vibration and sound, reducing system noise and enhancing comfort in home or building

With thermalcork solutions like Kliu Cork Spray, your HVAC system gains thermal efficiency and noise control, especially in shared spaces like offices, multi-family housing, or open-plan commercial layouts.

One of the many benefits of cork insulation is its ability to reduce energy usage. When HVAC ducts are not properly insulated, heat escapes during winter and enters during summer, forcing the system to work harder. This leads to higher energy bills and reduced efficiency.

Applying a cork spray coating creates a protective shell that maintains air temperature throughout the ducts. Insulation can help reduce heating and cooling demands by sealing in temperature-regulated air, significantly reducing operational costs for your home or business.

Cork has been used for centuries because of its resilience and strong thermal properties. As a coating solution, cork performs well in humid, dusty, or temperature-variable environments—conditions often degrade other insulation products.

Once applied, cork forms a permanent coating that is resistant to cracking, peeling, and shrinkage. This durability ensures that Kliu Cork Spray will maintain its insulation properties over time, making it a reliable choice for both residential and commercial buildings.

When it comes to sustainability, cork is unmatched. Harvested from the bark of cork oak trees, it is a renewable resource that regenerates without damaging the tree. This eco-friendly aspect, combined with its biodegradability, recyclability, and lack of harmful chemicals, makes Kliu Cork Spray a responsible choice for duct insulation.

Products like Kliu’s spray-on cork are made with water-based binders and are VOC-free, which improves indoor air quality and is compatible with cork products. In contrast to traditional insulation, American cork insulation offers superior environmental benefits. Foam insulation, petroleum-based coatings, and cork are ecological and environmentally friendly options that support green building practices and energy-efficient retrofits.

Proper insulation helps control condensation and moisture buildup in ducts, which can otherwise lead to mildew growth, mold, or bacterial growth. Because cork is breathable and mildew-resistant, moisture can escape without compromising insulation performance.

Using cork spray products in your HVAC system reduces air contamination risk while insulating the ducts with effective cork cladding. It eliminates the need for adhesive duct tapes or sealants that degrade over time and release toxins. This improves indoor air quality and a healthier living or working space.

Cork spray is compatible with most HVAC ducting materials, including metal, fiberglass, and concrete surfaces. Proper insulation is essential whether you’re insulating new ducts or retrofitting existing air conditioning ducts. Ductwork, cork spray forms a consistent and flexible layer that adheres to smooth and textured surfaces.

In addition, cork insulation is ideal for tight or irregularly shaped spaces that would otherwise be difficult to cover using insulation boards or pre-formed wraps. It conforms easily to complex geometries, ensuring full coverage and eliminating thermal weak points throughout the home or building.

The application process for cork spray involves three primary steps: surface preparation, spray application, and curing. These steps ensure a thorough and effective installation of the cork insulation.

1. Surface preparation: Clean the duct liner and ensure the substrate is dry, dust-free, and ready for coating.
2. With specialized equipment and trained installers, the application of Kliu Cork Spray is a straightforward process. It involves the even application of 2–3 layers of cork coating over the duct surface, ensuring a seamless and effective insulation solution.
3. Curing: The coating sets and cures into a flexible, breathable, and durable shell that provides thermal and acoustic insulation.

Kliu’s team of cork spray experts ensures that every application meets strict performance and safety standards. Coating products like Kliu Cork Spray are easy to install, fast-drying, and compatible with a wide range of duct configurations.

Kliu Cork Spray is a premium option among thermalcork solutions. Unlike standard insulation products, it delivers a seamless finish, superior thermal and acoustic performance, and long-term reliability with minimal upkeep.

• Developed by a leading expert in cork products, this insulation provides exceptional performance. cork producer
• Backed by Kliu Cork Spray
• Supported by decades of testing and field use
• Made with high-quality cork and eco-certified binders

Kliu offers an energy-efficient coating material that outperforms synthetic wraps, batts, and boards. Whether you’re looking to insulate your ductwork to enhance the efficiency of your HVAC insulation, reduce heat loss, or create a safer HVAC environment, Kliu provides a solution for insulating ductwork that delivers measurable results.