I. What is Fiberglass Duct Material?

Fiberglass duct is a composite duct material made primarily of glass fiber. It typically uses fiberglass boards as the base material and is prefabricated in a factory to form a duct system with certain strength and thermal insulation properties. From a material property perspective, fiberglass duct belongs to the inorganic fiber composite duct category, combining duct structural functions with thermal insulation and sound absorption properties, which differs from the traditional approach of adding an insulation layer to metal ducts.

II. Material Composition and Structural Characteristics of Fiberglass Ducts

1. Main Material Composition: Fiberglass ducts typically consist of the following parts:

Fiberglass Board: As the main structural material, providing strength and thermal insulation performance.

Surface Coating: Such as aluminum foil or other protective layers, used to enhance durability and airtightness.

Connection and Reinforcement Structure: Used to ensure the overall stability of the duct system.

2. Structural Characteristics: Fiberglass ducts are mostly produced in factories using prefabrication methods and assembled on-site. Its internal fiber structure is loose, and the outer surface, after treatment, possesses a certain degree of mechanical strength and stability.

Fiberglass Ducts

III. Main Performance Characteristics of Fiberglass Ducts

1. Thermal Insulation Performance

Since fiberglass ducts are themselves insulation materials, their thermal conductivity is relatively low. In air conditioning systems, this effectively reduces heat loss and lowers system energy consumption.

2. Sound Absorption and Noise Reduction Performance

Fiberglass materials have excellent absorption properties for mid-to-high frequency noise. During operation, fiberglass ducts help reduce noise generated by fans and airflow.

3. Relatively Lightweight

Compared to traditional metal ducts, fiberglass ducts are lighter overall, reducing the structural load on buildings and facilitating transportation and installation.

4. High System Integration

Fiberglass ducts integrate the ductwork and insulation layer, reducing the need for post-insulation wrapping in traditional ductwork and resulting in a simpler system structure.

Formaldehyde-Free Fiberglass Air Ducts

IV. Main Application Areas of Fiberglass Air Ducts

1. Commercial and Public Buildings

Fiberglass air ducts are commonly used in:

Commercial complexes

Office buildings

Public buildings such as hospitals and schools

In these locations, fiberglass air ducts can meet air supply needs while helping to control noise and energy consumption.

2. HVAC Systems

In centralized air conditioning systems and fresh air systems, fiberglass air ducts can be used as supply or return air ducts, suitable for systems with certain requirements for insulation and quiet operation.

3. Locations with High Noise Requirements

In places such as conference rooms, cinemas, and studios, the sound absorption characteristics of fiberglass air ducts help improve the indoor acoustic environment.

V. Selection and Usage Precautions for Fiberglass Air Ducts

1. Rational Selection Based on System Operating Conditions

Different wind speeds and pressures require different strength and structural specifications for fiberglass air ducts; selection should be based on specific design parameters.

2. Focus on Protection and Durability

When used in high humidity or special environments, attention should be paid to the protective performance of the surface coating of the fiberglass duct to extend its service life.

3. Standardized Installation and Construction

Fiberglass ducts are typically installed using a modular method. Assembly should be carried out according to design and construction specifications to ensure the system's airtightness and stability.

VI. Differences between Fiberglass Ducts and Traditional Ducts

Compared to traditional sheet metal ducts, fiberglass ducts have certain advantages in terms of thermal insulation, sound absorption, and construction integration. However, in terms of mechanical strength and adaptability to the usage environment, a comprehensive evaluation based on specific project conditions is required. In summary, fiberglass ducts are inorganic fiber composite duct materials made primarily of glass fiber, integrating ductwork, thermal insulation, and sound absorption functions. They are widely used in HVAC systems and various building air supply systems. Through proper selection and standardized installation, fiberglass ducts can meet air supply requirements while also ensuring energy efficiency and comfort.