Pre-insulated PU Duct Board

Thanks to its excellent products and quality services, UNT Duct is one of the leading pre-insulated pu 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.

 

 

Pre‑insulated PU duct board is an advanced, integrated air duct material designed for modern HVAC systems. It combines thermal insulation, airtightness and structural support in one panel, replacing traditional metal ducts and on‑site insulation. With high efficiency and reliability, it has become a preferred choice for green buildings and high‑quality projects worldwide.

Structure

It adopts a rigid sandwich structure:

Core layer: High‑density closed‑cell polyurethane (PU) foam, providing excellent insulation and stability.

Surface layers: High‑strength aluminum foil bonded to both sides, offering good airtightness, moisture resistance and durability.The whole panel is produced by one‑step foaming and bonding in the factory.

 

High energy efficiency:

Excellent thermal insulation greatly reduces heat loss or gain during air transmission, cutting HVAC energy consumption by 20%–30%.

Lightweight & fast installation:

Much lighter than steel ducts; no on‑site insulation needed, saving 40%–60% of installation time.

Moisture & condensation proof:

Near‑zero water absorption prevents condensation, mold and performance degradation.

Hygienic & clean:

Smooth aluminum surface resists dust and bacteria, easy to clean, ideal for hospitals, food factories and clean rooms.

Stable & durable:

High toughness, no cracking or powdering; long service life of over 20 years.

Sound absorption:

PU core reduces airflow noise for quieter indoor environments.

Pre‑insulated PU duct board is widely used in:

• Commercial buildings: offices, shopping malls, hotels, airports, stadiums
• Residential buildings: apartments, villas, high‑rise central air conditioning
• Hygienic fields: hospitals, laboratories, food processing plants, clean rooms
• Special environments: cold storage, basements, coastal and high‑humidity areas

It supports energy conservation, environmental protection and intelligent construction, matching the development trend of modern buildings.

certification of Pre-insulated PU Duct Board

 

 

Fire Safety, Thermal Conductivity and Physical Performance

BS 476 Part 6&7

ASNZS 1530.3

thermal Conductivity

Compress Strength

CFC HCFC Free