Why is glass wool felt widely used in building construction?

2025-12-04

In modern building construction, the choice of materials not only affects the quality of the project but also directly relates to the building's lifespan, energy efficiency, and living comfort. Among numerous building materials, glass wool felt, with its unique properties and advantages, has become an important material widely used in building construction. This article will explore in depth the characteristics, application areas, and reasons for the popularity of glass wool felt.

 What is glass wool felt?

Glass wool felt is a thermal insulation and sound-absorbing material made from molten glass fibers. It typically exists in felt form and is lightweight, flexible, and heat-resistant. The production process involves recycling and melting waste glass, stretching it into fibers, and then mixing it with an adhesive to form a felt. In today's world, where environmental protection is increasingly important, glass wool felt, as a recyclable material, is particularly favored.

Properties of glass wool felt

1. Excellent thermal insulation performance  

Fiberglass wool has excellent thermal insulation properties, with a thermal conductivity typically between 0.030 and 0.040 W/(m·K). This material effectively blocks heat conduction, reducing energy loss. In winter, fiberglass wool effectively keeps the interior of a building warm, while in summer, it effectively insulates against external heat, ensuring the building's comfort.

2. Good sound insulation performance  

Due to its fibrous structure, glass wool felt also performs excellently in sound insulation. It absorbs sound waves and reduces noise, providing a quiet environment for residents. This is especially important in urban construction, enhancing the comfort of living and working environments.

3. Fire resistance  

Glass wool felt is an inorganic material with excellent fire-resistant properties, effectively reducing fire hazards. In building design, using fire-resistant materials is a crucial measure to improve building safety. Glass wool felt typically has a fire resistance rating within the Class A range, making it a key fire-prevention choice in building construction.

4. Corrosion resistance and moisture resistance  

Glass wool felt not only exhibits strong adaptability to temperature changes, but also demonstrates excellent resistance to chemical corrosion and humid environments. This characteristic makes it possible to use it in extreme environments, such as industrial plants and chemical plants.

Application areas of glass wool felt

1. Building insulation  

Fiberglass wool felt is commonly used to provide excellent thermal insulation in the exterior walls, roofs, and floors of residential and commercial buildings. Whether for new construction or energy-saving renovations of existing buildings, fiberglass wool felt can effectively improve building energy efficiency and comfort.

2. Cold chain logistics  

In refrigeration equipment and refrigerated transport applications, using glass wool felt as insulation material not only maintains low internal temperatures but also reduces the energy consumption of the refrigeration equipment. The excellent properties of this material play an indispensable role in ensuring the safety of food and pharmaceuticals.

3. Industrial thermal insulation  

In high-temperature environments, glass wool felt can also be used as an insulation material for boilers, pipelines, and other equipment to reduce heat loss and improve efficiency. At the same time, the fire-resistant properties of glass wool felt ensure the safe operation of the equipment.

4. Acoustic Engineering  

In architectural acoustics materials, glass wool felt is widely used in places that require sound propagation control, such as auditoriums, cinemas, concert halls, and recording studios, to help create a better auditory experience.

Factors to consider when selecting glass wool felt

While glass wool felt offers numerous advantages, construction companies and architects still need to comprehensively consider actual needs when selecting this material. This includes:

1. Product density and thickness  

Glass wool felt of different densities and thicknesses is suitable for different construction environments. For example, thicker felt is usually suitable for reducing low-frequency noise, while thinner felt is more suitable for general thermal insulation requirements.

2. Environmental adaptability  

When selecting glass wool felt, choose the appropriate product based on the humidity, temperature, and chemical exposure of the construction environment to ensure its effective performance.

3. Fire resistance rating  

Based on building design and relevant regulations, select glass wool felt that meets fire protection requirements to ensure construction safety and compliance.

4. Construction process  

Understand the construction standards and requirements of different manufacturers of glass wool felt to ensure that the construction process complies with the specifications in order to obtain the best results.

Summarize

Fiberglass wool felt, a popular material in building construction, has become a key choice in the industry due to its superior performance and wide range of applications. It plays a significant role in improving building energy efficiency, providing excellent sound insulation, and enhancing safety and environmental protection. Choosing the right fiberglass wool felt and applying it appropriately will provide strong guarantees for the comfort and safety of buildings. Therefore, fiberglass wool felt is undoubtedly an ideal solution for the increasingly stringent requirements of modern buildings for thermal insulation, heat insulation, and sound insulation.