UNTDuct Phenolic System

Phenolic foam is inherently fire-retardant, meeting strict global standards (e.g., EN 13501, ASTM E84). It self-extinguishes when exposed to flames, forms a protective char layer to slow fire spread, and emits minimal toxic smoke—critical for spaces like hospitals, schools, and high-rise buildings where fire safety is paramount.

Phenolic foam, the core insulation material, has an ultra-low thermal conductivity (about 0.025 W/m·K)—superior to many alternatives like EPS (≈0.030–0.040 W/m·K). This minimizes heat transfer between conditioned air (cool or warm) and the surrounding environment, reducing energy loss by up to 40%. As a result, HVAC systems work less, slashing long-term energy bills.

Prefabricated as all-in-one units (with inner air barrier, foam core, and outer protective layer), these ducts eliminate the need for separate insulation wrapping or on-site cutting. Their lightweight design simplifies handling in tight spaces (ceilings, wall cavities), reducing installation time by 50% compared to traditional metal ducts with loose insulation. This lowers labor costs significantly.