UNTDuct PIR System

The closed-cell PIR foam core boasts ultra-low thermal conductivity (0.020–0.022 W/m·K), acting as a powerful thermal barrier. It minimizes heat transfer, keeping conditioned air (cool in summer, warm in winter) at optimal temperatures as it travels through ducts. This reduces HVAC system workload by up to 40%, slashing energy bills significantly over time.

Pre-insulated PIR systems come pre-assembled with integrated insulation and aluminum/metal layers, eliminating the need for separate insulation wrapping or complex cutting on-site. Their lightweight design (far lighter than traditional metal ducts) makes handling and fitting into tight spaces (ceilings, wall cavities) easier, cutting installation time by 50% compared to conventional ductwork.

The outer aluminum or painted steel layer resists corrosion, dents, and moisture, while the PIR foam core is water-resistant and mold-proof—even in humid environments like kitchens or basements. This robust construction ensures longevity (15–20 years of reliable performance) with minimal upkeep, reducing replacement and repair costs.

PIR foam is inherently fire-resistant, forming a protective char layer under high heat that slows flame spread and limits toxic smoke emission. It meets strict safety standards (e.g., ASTM E84, BS 476 Part 6&7), making it safe for use in homes, schools, hospitals, and commercial spaces where fire safety is critical.