20mm Thickness Pre-insulated Air Duct Sandwich Panel

The 20mm Thickness PIR Pre-insulated Air Duct Sandwich Panel is a high-performance HVAC component, engineered with a 20mm closed-cell polyisocyanurate (PIR) foam core-sandwiched between durable facings (typically aluminum or galvanized steel)-to balance thermal efficiency, structural stability, and space efficiency.

Its PIR core delivers excellent insulation (thermal conductivity 0.020 W/m·K, R-value ~R-1.0), minimizing heat gain/loss for conditioned air, critical for energy-saving in commercial, industrial, or transport (e.g., rail) HVAC systems. At 20mm thick, it fits tight spaces (e.g., building ceilings, train interiors) without sacrificing performance.

Lightweight yet rigid, it resists sagging and vibration, while airtight joints reduce leakage. With Class 0/B1 fire resistance (low smoke, self-extinguishing) and corrosion-resistant facings, it suits offices, hospitals, or high-speed vehicles-ensuring long-term, low-maintenance, efficient air distribution.

Panel Structure: Silver Alu. / PIR Foam / Silver Alu. 

Foam Density: 55kg/m3

Panel Dimension: 3950mm*1200mm*20mm

Alu. Foil: 60 Micron (Embossed)

Painted Steel Sheet : 180 Micron (Smooth)

 

: At 20mm, it's thinner than fiberglass/mineral wool + metal duct setups, while delivering far better thermal efficiency-ideal for projects where space and energy savings are both priorities.

 

: Lightweight, rigid, and fire-safe, it works across commercial, industrial, and transport (e.g., bullet trains) applications-unlike phenolic (brittle) or mineral wool (heavy) panels.

 

Long-Term Value: Lower maintenance costs and longer lifespan vs. fiberglass make it more cost-effective over time, even with a slightly higher upfront price.

 

For most modern HVAC systems-especially those in space-constrained or energy-efficient builds-the 20mm PIR pre-insulated sandwich panel is the most balanced, high-performance choice.