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Soundproof and Energy-efficient: The Advantages of Eva Glass Interlayer in Modern Architecture

2025-04-30

With the development of technology and the improvement of human living standards, energy conservation, environmental protection, comfort and quietness have become important considerations in modern architectural design. EVA laminated glass (Ethylene Vinyl Acetate), with its excellent sound insulation, heat insulation, safety and environmental protection properties, is gradually becoming the preferred material in the fields of building curtain walls, doors and windows, skylights, etc. This time, we will analyze its core advantages in modern architecture by combining industry data with Foundite's EVA laminated glass technology.

I. The Structure and Working Principle of EVA Laminated Glass
EVA laminated glass is composed of two or more layers of glass with a layer of EVA Film (Ethylene-Vinyl Acetate Copolymer) sandwiched in the middle, and is compounded under high temperature and high pressure. Compared with traditional PVB laminated glass, EVA glass has the following characteristics: higher light transmittance (up to over 91%, reducing indoor lighting energy consumption); stronger weather resistance (it can be stably used at temperatures ranging from -40°C to 80°C); and it is more environmentally friendly (containing no formaldehyde or heavy metals, and meeting the RoHS standard).

II. Four Core Advantages of EVA Laminated Glass

Excellent Sound Insulation Performance
Principle: The viscoelasticity of the EVA film can effectively absorb the vibration of sound waves and block medium and low-frequency noises (such as traffic and construction noises).
Measured Data:
A single-layer EVA laminated glass (6mm + 0.76mm EVA + 6mm) can reduce noise by 35-42dB.
The double-layer hollow + EVA structure (such as 6mm + 12A + 6mm + EVA) has a better sound insulation effect and is suitable for buildings near airports and high-speed railway stations.
Application Case: After a high-end residential project in Shanghai adopted Foundite EVA laminated glass, the indoor noise was reduced by 78%.
Outstanding Energy-saving and Heat Insulation Performance
The combination of low-emissivity (Low-E) coating and EVA can block more than 60% of infrared rays, reducing the entry of heat in summer.
Heat Preservation in Winter: The EVA layer slows down the heat loss indoors, and the K value (thermal conductivity coefficient) can be as low as 1.1 W/(㎡·K).
Energy-saving Benefits: According to calculations, the annual air conditioning energy consumption of buildings using EVA glass can be reduced by 25%-30%.
Super Strong Safety Protection
Impact Resistance: Even if the glass is broken, the EVA film can still firmly bond the fragments to prevent splashing (in line with the GB 15763.3 safety standard).
Ultraviolet Resistance: The EVA layer can filter 99% of UV radiation, protecting indoor furniture from fading.
Wind Pressure Resistance: It is suitable for areas prone to typhoons (for example, the EVA glass provided by Foundite for a hotel in Hainan can withstand wind pressure up to level 12).
Environmental Protection and Long Service Life
No Glue Volatilization: EVA hot melt adhesive does not contain harmful substances such as benzene and formaldehyde (PVB glass may contain trace amounts of plasticizers).
Aging Resistance: Foundite's EVA film has passed the 10-year accelerated aging test without problems such as yellowing and delamination.
Recyclability: Both the glass and EVA materials can be recycled, reducing construction waste.

III. Typical Application Scenarios of EVA Laminated Glass
Curtain Wall System: High light transmittance + sound insulation to improve office comfort.
Daylighting Roof: Ultraviolet resistance + hail impact resistance (for example, part of the roof of Beijing Daxing International Airport uses EVA laminated glass).
Windows Facing the Street: Block traffic noise and create a quiet environment for studying and resting.
Balcony Guardrail: Safe to prevent falling, with a child-friendly design.
Hospitals and Laboratories: Antibacterial EVA film (such as Foundite's Ag+ ion-coated version) can inhibit the growth of microorganisms.
Building Integrated Photovoltaics (BIPV): The transparent EVA layer is used for the encapsulation of solar cells, taking into account both power generation and daylighting.

Conclusion

With its comprehensive advantages of sound insulation, energy conservation, safety, and environmental protection, EVA laminated glass is reshaping the standards of modern architecture. As the technology matures and costs decrease, it will become an important bonus item for green building certifications (such as LEED and BREEAM). For architects, developers, and property owners, choosing EVA products from high-quality suppliers like Foundite means lower operating costs and higher space quality!

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