Thanks to its excellent products and quality services, UNT Duct is one of the leading rigid pu pre-insulated duct board manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
The Contractor's Edge: Why Rigid PU Pre-Insulated Duct Board is the Future of Your HVAC Installations
Let's be honest: traditional sheet metal ductwork is heavy, labor-intensive, and eats into your margins with fabrication time and insulation labor.
If you are looking for a way to speed up installations, protect your crew's backs, and deliver a quieter, more efficient system to your clients, it is time to spec Rigid Polyurethane (PU) Pre-Insulated Duct Board.
Rigid PU pre-insulated duct board is a lightweight, all-in-one HVAC panel that replaces heavy sheet metal and external insulation, cutting installation time in half while delivering superior thermal efficiency and zero condensation risk.
Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 4000*1200*20mm
Foam Density: 48kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)
Here is what this material means for you on the ground level
1. Slash Installation Time (and Labor Costs)
Forget the multi-step process of measuring, cutting metal, sealing seams, wrapping with fiberglass, and applying vapor barriers.
All-in-One: PU duct board is a structural insulated panel. The CFC-free PU foam core is sandwiched between reinforced aluminum foil facings.
Fabrication Speed: You cut it with standard knives or light-duty power tools-no plasma cutters or heavy shears. You can fabricate a full duct run in half the time of metal.
Joinery: The male/female (tongue & groove) connections fit together seamlessly and are sealed with aluminum tape. No heavy flanges, no bolting, and no external insulation jackets.
2. A Safer, Cleaner Jobsite
We all know the reputation of traditional fiberglass insulation. It itches, it degrades over time, and it requires bulky PPE.
No Itch: PU foam is rigid and dust-free. Your guys won't be dealing with airborne glass fibers during installation.
Lightweight: A standard panel weighs roughly 40-50% less than sheet metal with external insulation. This means less strain on your crew during overhead installations and fewer lift rentals.
3. Superior Performance = Fewer Callbacks
Nothing hurts your profit like a callback for condensation dripping or poor airflow.
Thermal Efficiency: PU foam has a closed-cell structure with a thermal conductivity as low as 0.020 W/m·K. This is roughly twice as efficient as fiberglass. You can achieve the same R-value with a thinner panel, saving space in tight mechanical rooms.
Zero Condensation: The solid foam core acts as an integrated vapor barrier. When sealed correctly, the surface temperature stays above the dew point, virtually eliminating the risk of water damage and mold growth.
Airtight: Properly taped joints result in significantly lower leakage rates compared to spiral or welded metal, directly improving the system's SEER/IEER ratings.
4. Acoustics: The Silent Selling Point
In high-end residential and commercial projects, noise complaints are a pain. The PU foam core has excellent sound-dampening properties. It absorbs the "rumble" of the air handler and reduces cross-talk between rooms, giving your clients a quieter building.
5. Fire Safety & Compliance
We know you don't take fire ratings lightly. High-quality PU duct boards are manufactured with flame retardants and pass international standards such as BS476 Part 6&7 and ASTM E-84 (Class 1 or 0). When installed per the manufacturer's guidelines, they meet strict building codes for commercial and residential use.
mbining top-tier insulation, safety, and ease of installation to deliver comfortable, cost-effective, and sustainable air distribution in any building.
Main Production Process of Rigid PU Pre-insulated Duct Board
The UNTDuct PU System: Redefining Air Distribution Excellence
More than just pre-insulated aluminum panels, the UNTDuct System is a comprehensive solution - complete with precision-engineered accessories, specialized machinery, purpose-built tools, and expert know-how - ensuring flawless construction and installation.
Pre-insulated PU Panels:
The system's base sandwich boards consist of closed-cell PU foam core bonded with double-sided aluminum foil, delivering outstanding energy saving, moisture resistance and hygienic performance compared to traditional GI ducts.
Pre-insulated duct Accessories:
Custom aluminum and PVC profiles, sealants, hanging hardware and prefabricated duct fittings perfectly match panel sizes to secure airtight, stable duct joints during assembly.
Fabrication Tools/ Equipment:
Specialized Machinery & Purpose-built Portable cutting, grooving and shaping hand tools plus optional automated processing machines support flexible on-site fabrication and standardized mass pre-production of duct components.
Know-How:
Professional Expert Know-how & Technical Support: Comprehensive technical training, customized design plans, construction guidance and after-sales consultation are provided to help clients handle all types of HVAC projects smoothly.
Our Honor & certificate
Since its establishment in 2013, UNT has obtained 17 patents and earned numerous industry honors. We are also certified to the ISO 9001, ISO 14001, and ISO 45001 international management standards.
December 2020: Awarded the National High-Tech Enterprise Certificate and the Fujian Provincial High-Tech Enterprise Certificate
December 2023: Awarded the National High-Tech Enterprise Certificate and the Fujian Provincial High-Tech Enterprise Certificate
November 2024: Listed in the Fujian Provincial List of Specialized, Refined, Differentiated and Innovative Small and Medium-Sized Enterprises
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