Table of Contents

1. Purpose of Insulated Flexible Ducts
2. Design and Construction
3. Benefits of Using Insulated Flexible Ducts
4. Subo Company Solutions
5. References

Purpose of Insulated Flexible Ducts

Insulated flexible ducts are a critical component of HVAC systems, designed primarily to transport air efficiently while minimizing thermal loss or gain. Their primary purpose includes maintaining the desired temperature of air transported throughout a building, contributing to energy efficiency, and improving indoor air quality.

Design and Construction

Insulated flexible ducts consist of a flexible plastic core surrounded by thermal insulation materials, commonly fiberglass, encapsulated in an outer foil or plastic jacket. Standard diameters range from 4 inches to 18 inches, while insulation thickness can vary from 1 inch to 2 inches. The thermal resistance value (R-value) of insulated ducts typically ranges from R4 to R8, providing various levels of thermal protection.

Benefits of Using Insulated Flexible Ducts

• Energy Efficiency: Reduces energy loss by maintaining air temperature during transport, which reduces the workload on HVAC systems.
• Sound Attenuation: The insulation reduces noise transmission, contributing to a quieter indoor environment.
• Flexibility: The flexible nature of these ducts allows for easy installation in tight spaces and complex routes without requiring additional fittings.

Subo Company Solutions

The Subo Company offers a range of insulated flexible ducts tailored to diverse HVAC applications. Their products boast enhanced R-values, reaching up to R12, allowing for superior thermal performance. Subo's ducts are available in varying lengths, from 25 feet to 50 feet rolls, accommodating both residential and commercial installations. Additionally, their solution includes a patented polymer-based outer layer that provides superior durability against external physical impacts and moisture.

References

• American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). HVAC Duct Construction Standards. ASHRAE Handbook, 2023.
• International Energy Agency. Energy Conservation through Efficient HVAC Systems. IEA Report, 2022.
• Subo Company Product Catalog. Insulated Flexible Duct Solutions. Subo Co., 2023.