PRODUCTS
HAVC Duct Board (Double Sided Aluminum Foil)
We believe in offering not just better products, but also better solutions. Our fiber glass duct board provides a high-performance alternative to traditional sheet metal ducts. It offers several performance benefits to HVAC contractors, as well as residential and commercial building occupants.
WT duct board reduces unwanted noise and helps maintain consistent temperatures, reducing energy waste. It also contributes to a healthier indoor environment by minimizing air leakage and is resistant to damage from microbial growth. Homeowners and occupants will appreciate the improved comfort, while contractors will find WT duct board easy to work with for quicker installations. Our duct board solutions provide a variety of benefits to meet your specific requirements and needs.
Product Specifications
| Category | Specification | Technical Indicators |
| Standard thickness | 20mm(0.7874 inches), 25mm(0.9843 inches), 30mm(1.1811 inches) (customizable) | Thermal conductivity: 0.019-0.02W/(m/k) |
| Length/width | 2000mm x 1200mm(78.7402 inches x 47.2441 inches), 3000mm x 1200mm(118.1102 inches x 47.2441 inches), 4000mm × 1200mm(157.4803 inches x 47.2441inches) (customizable) | Water absorption: ≤3.7% |
| Foam thickness | 0.025mm(0.0009843 inches), 0.04mm(0.0015748 inches), 0.06mm(0.0023622 inches), 0.08mm(0.0031496 inches) | Fire resistance: B1 level flame retardant |
| Settlement density | 50-65 Kg/m³ | Tensile strength: ≥1.1MPa |
| Temperature resistance | -150℃~150℃(-300℉~300℉) | Thermal resistance: 0.86m2K/W |
| Compressive strength | ≥0.18MPa | Dimensional stability: ≤2% (70±2℃, 48h) |
| Water absorption | ≤1.2% | Impact rigidity: >1.5h |
| Combustibility | ≤9, No spontaneous combustion, No smoke toxicity | Fire rating: A |
| Thermal conductivity | ≥45 | |
| Daily evaporation | ≤0.5mg/L |
Advanced Insulation Technology Thermal Efficiency
The HAVC Duct Board (Double Sided Aluminum Foil) features advanced insulation technology for maximum thermal efficiency. Its high-density core, with low thermal conductivity, minimizes heat transfer, keeping conditioned air at the desired temperature throughout the system. The double-sided aluminum foil boosts insulation properties, cutting energy loss and enhancing overall system performance.
Enhanced Fire Protection
Flame Retardant Properties
Safety is a top priority in HVAC systems, and our duct board meets rigorous fire protection standards. With a flame retardant rating of B1 class (GB8624-2006), it offers enhanced fire resistance, minimizing the risk of fire propagation. The nonflammable B1 class rating ensures building occupants’ safety and property preservation.
Durable and Reliable
Long-Lasting Performance
Our duct board is designed for durability and reliability. Its high-density core offers excellent strength, withstanding pressure, bending, and compression. Water-resistant properties ensure long-term performance, minimizing moisture-related degradation. Superior bonding strength guarantees a secure and lasting installation.
Enhance the efficiency and safety of your HVAC system with our phenolic Board (Double Sided Aluminum Foil). Enjoy superior thermal insulation, reduced energy consumption, and enhanced fire protection. Benefit from its durable construction, reliable performance, and ease of installation. Ideal for residential, commercial, and industrial applications.
Applications
- Fabricate and install ducts following NAIMA’s “Fibrous Glass Duct Construction Standard,” “Residential Standard,” “11/2″ Fabrication Manual,” or WT Insulation’s “Air Duct Fabrication Manual.” Adhere to the requirements of UL 181 listing. Seal all transverse joints, longitudinal seams, and duct wall penetrations using 3″ (76 mm) wide glass fabric and mastic, 2″ (51 mm) minimum width heat-sealable tape, or 2″ (51 mm) minimum width pressure-sensitive tape with acrylic adhesive. Avoid using rubber-based adhesives.
For closure systems, only use products listed and labeled under UL 181-A. You can get a list of approved closure products from your local WT sales representative.
Pressure-Sensitive Tapes:
Use only tapes listed under and imprinted with the designation UL 181 A-P and registered with UL.Heat-Sealable Tapes:
Use only tapes listed under and imprinted with the designation UL 181 A-H and registered with UL.Mastics:
Use mastic systems listed and registered with UL, carrying the designation UL 181 A-M, along with a 3″ (76 mm) wide glass fabric.
Storage
Ensure that ductwork insulation board is protected from water damage, construction damage, and other forms of abuse.
If storing outside, make sure to provide adequate protection against weather conditions.
Procedures
Pressure-Sensitive Tape:
Staple all longitudinal and circumferential joints with outward flaring, 1/2″ (13 mm) minimum length staples, placed 2″ (51 mm) apart.
If needed, follow the tape manufacturer’s recommendations for cleaning the surface to be taped.
Center the tape over the staple flap and firmly rub it into place immediately after application, using a plastic “squeegee” or similar tool, until the scrim reinforcement of the duct board facing is clearly visible through the tape.
When installing below 50°F (10°C), use a heat-sealing iron to ensure a good bond. First, heat the duct board facing surface to remove moisture.
Do not apply tape to the duct board surface when the temperature is below 32°F (0°C) due to the risk of trapping ice crystals, which can cause the tape to loosen when they melt.
Heat-Sealable Tape:
Staple all longitudinal and circumferential joints with outward flaring, 1/2″ (13 mm) minimum length staples, placed 2″ (51 mm) apart.
If needed, follow the tape manufacturer’s recommendations for cleaning the surface to be taped.
Center the tape over the staple flap and seal the tape end with a 500°F (260°C) iron. Do not use a heat gun; both heat and pressure are needed to create a seal.
Press down the entire length of the tape with the iron using a smearing action to achieve a good bond. Make sure the edges are sealed.
When using an automatic closure machine like the Glassmaster Closemaster, staples may be omitted. In this case, set the iron temperature to a minimum of 650°F (343°C). Continuous production may require pauses to maintain the sealing iron temperature at the 650°F (343°C) minimum.
Allow the joint to cool before applying stress.
Mastic and Glass Fabric:
Staple all longitudinal and circumferential joints with outward flaring, 1/2″ (13 mm) minimum length staples, placed 2″ (51 mm) apart.
Apply approved mastic to the joint and embed a 3″ (76 mm) wide glass fabric into the mastic.
Apply a second coat of mastic over the glass fabric until the mesh is completely filled.
Follow the mastic manufacturer’s instructions on curing the mastic before subjecting the joint to stress.
Procedures
WT Insulation will not be liable for duct system performance if the closure system used is not one of the approved systems described above, and if the application does not follow the stated procedures. Using a non-UL registered and listed closure will void the UL 181 Class 1 rating and WT’s product performance warranties.
Reinforcements
Reinforce duct sections as needed, following WT Insulation and NAIMA standards. Support ductwork on straight runs, at all turns, and at transitions to maintain proper alignment. Ensure hangers and supports comply with WT Insulation and NAIMA standards.
Installation Guidelines
Sealing Techniques
Seal All Seams and Joints: Use an appropriate HVAC sealant or mastic to seal all seams and joints. This prevents air leaks, which can reduce system efficiency and lead to poor indoor air quality.
Apply Sealant Correctly: Follow the manufacturer’s instructions for applying sealant. Typically, you should apply it in a continuous bead and press the joint together firmly to ensure a tight seal.
Inspect for Gaps: After installation, inspect the ductwork for any gaps or areas where the sealant may have missed. Address these promptly to maintain system integrity.
Tools and Accessories Required
Utility Knife and Straight Edge: For cutting the duct board.
Aviation Snips or Saw: For making custom cuts and fittings.
HVAC Sealant or Mastic: For sealing seams and joints.
Hangers and Straps: For supporting and suspending the ductwork.
Measuring Tape: For accurate measurements.
Safety Equipment: Such as gloves and goggles to protect against sharp edges and dust.
Contact Us
sales@wtinsulation.com
Phone
0086-13771601681
Address
No.5,North Waihuan Road,Huangtang Industrial Zone, Xuxiake Town, JiangYin City, Jiangsu Province, China
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