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What is the latest price of tempered glass from the source factory in Foshan? How does LOW-E glass achieve high energy efficiency and thermal insulation performance?

Release time:

Mar 07,2025

LOW-E glass, scientifically known as low-emissivity coated glass, is an energy-efficient glass that achieves high energy-saving and thermal insulation performance by coating multiple layers of metal or other compound films on the glass surface. The following are the key ways LOW-E glass achieves these performances:

1. Thermal Insulation Performance

Low-emissivity functional film: The low-emissivity functional film coated on the surface of LOW-E glass can effectively block infrared rays in sunlight. In summer, it reflects far-infrared radiation from sunlight, reducing heat energy entering indoors, thereby lowering air conditioning usage; in winter, it reflects far-infrared thermal radiation from indoors, preventing heat loss and maintaining indoor temperature, significantly improving insulation effectiveness.

Inert gas filling: Filling inert gases (such as argon, krypton, etc.) in hollow glass units can further reduce thermal conductivity and improve insulation performance.

Warm edge technology: Using warm edge technology can effectively reduce edge thermal conduction and enhance overall insulation performance.

2. Energy-saving Effect

Reducing heat loss: LOW-E glass can significantly reduce indoor heat energy loss to the outdoors due to radiation, thereby lowering fuel consumption required for heating and achieving efficient energy-saving effects.

Reducing harmful gas emissions: Due to the reduction in heat loss, using LOW-E glass can greatly reduce the fuel consumed for heating, thereby reducing emissions of harmful gases such as CO2 and SO2, which is beneficial for environmental protection.

3. Other Performances

Preventing condensation: Sufficient desiccant filled in the spacer bars of LOW-E hollow glass can effectively absorb water vapor, including moisture that may seep in from the outside. At the same time, due to its good insulation and airtightness, the internal dew point is lower than -40°C, preventing condensation or frost, keeping the indoors dry and comfortable.

Sound insulation: LOW-E hollow glass is an ideal soundproofing building material, effectively reducing noise over a wide range. Various forms of noise can be stably reduced by more than 30dB due to the barrier effect of hollow glass, and after filling with inert gas, it can further reduce by 5dB, creating a quiet and comfortable working and living environment.

Transparency: LOW-E glass has excellent visible light transmittance, theoretically ranging from 0% to 95%, far exceeding ordinary clear glass. By using different types of glass substrates to synthesize hollow glass, the visible light transmittance can be adjusted within the range of 12% to 80%. The extensive use of this type of hollow glass not only beautifies buildings and increases lighting areas, saving energy, but can also partially replace brick or concrete walls, reducing the load on buildings.

In addition, LOW-E glass also has excellent ultraviolet blocking ability, effectively protecting indoor items from fading. At the same time, the color selection of LOW-E glass is also very rich, allowing for choices based on architectural style and personal preference.

In summary, LOW-E glass achieves efficient energy-saving and thermal insulation performance through its unique low-emissivity functional film, inert gas filling, warm edge technology, and other technical means. These performances have led to the widespread application of LOW-E glass in the construction and industrial fields, making it an indispensable energy-saving material in modern architecture.

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