With increasingly stringent requirements for indoor air quality, energy efficiency, and fire safety in office buildings, the selection of materials for ventilation systems has become crucial. Fiberglass ducts, due to their integrated insulation, sound absorption, and structural design, have been widely used in modern office building ventilation systems, gradually becoming one of the effective alternatives to traditional sheet metal ducts.

I. Core Requirements of Office Building Ventilation Systems

Office buildings are densely populated public buildings, and their ventilation systems typically face the following requirements:

Long-term continuous operation with high energy consumption control requirements

Quiet office environment with sensitivity to noise control

Limited space for air conditioning duct installation

Strict requirements for fire safety and system stability

In this context, single-function duct materials are no longer sufficient to meet comprehensive needs, while fiberglass ducts have significant advantages in terms of multi-performance integration.

II. Structural Characteristics and Performance Advantages of Fiberglass Ducts

Fiberglass ducts are typically made from fiberglass boards as the base material, formed through composite processing, and possess the following characteristics:

**Excellent Thermal Insulation Performance:** The material itself has a low thermal conductivity, reducing heat loss and eliminating the need for additional insulation layers, thus improving system energy efficiency.

**Built-in Noise Absorption:** The porous fiber structure effectively absorbs airflow noise, reducing sound levels during supply and return air processes, making it suitable for quiet office environments.

**Lightweight Structure:** Lighter than metal ducts, reducing the load on floors and ceilings, making it especially suitable for high-rise office buildings.

III. Specific Application Scenarios in Office Building Ventilation Systems

1. Office Area Supply and Return Air Systems

Fiberglass ducts are commonly used in main and branch duct systems in office areas, helping to stabilize airflow distribution while reducing duct-transmitted noise.

2. Conference Rooms and Multifunctional Halls

In spaces with high acoustic requirements, the sound-absorbing properties of fiberglass ducts effectively reduce air conditioning noise, improving user comfort. 3. Public Corridors and Open Office Areas

In large-space continuous air supply scenarios, fiberglass ducts help achieve uniform airflow and reduce system energy consumption.

4. Retrofitted Office Building Projects

In upgrading the ventilation systems of old buildings, fiberglass ducts, due to their integrated thickness and flexible construction, can complete system updates within limited spaces.

IV. Advantages Compared to Traditional Metal Ducts

In office building environments, compared to traditional galvanized iron ducts, fiberglass ducts offer the following practical advantages:

No need for secondary insulation construction, reducing procedures

Sound absorption and insulation are completed simultaneously, simplifying the system

Lower risk of thermal bridging at joints

Shorter construction cycle

These characteristics make them more suitable for modern building projects, meeting the requirements of energy conservation, comfort, and integrated design.

V. Precautions for Engineering Application

In practical applications, to ensure stable system operation, the following should be noted:

Select fiberglass ducts of appropriate density and thickness according to design requirements.

Properly implement moisture-proofing and joint sealing treatment.

Coordinate appropriate fire prevention measures in fire-resistant compartments.

Install supports and hangers correctly to prevent duct deformation.

Scientific design and standardized construction are prerequisites for the performance of fiberglass ducts in office building ventilation systems.

In summary, the application of fiberglass ducts in office building ventilation systems effectively balances the needs for thermal insulation, noise reduction, and energy saving, making it particularly suitable for office buildings with high requirements for comfort and operational efficiency. With the popularization of building energy conservation and green office concepts, the application prospects of fiberglass ducts in the field of office building ventilation will continue to expand.