Key Features of Curtain Walls for Mid to Low-Rise Buildings

Several key features make curtain walls particularly suitable for mid- and low-rise buildings, enhancing their performance and aesthetic appeal.

1. High-Performance Glass

• Double-Glazing and Triple-Glazing: Many curtain walls are constructed using double-glazed or triple-glazed units, which offer better thermal performance and noise insulation compared to single glazing.
• Low-E Coatings: Low-emissivity (Low-E) glass is often used in curtain walls for improved thermal insulation. This glass has a coating that reflects infrared radiation, helping to retain heat inside during winter while preventing heat from entering during summer.

2. Framing Systems

• Aluminum and Steel Frames: The most common framing materials for curtain walls are aluminum and steel due to their durability, strength, and lightweight properties. Aluminum is particularly popular because it is corrosion-resistant and can be easily fabricated into sleek, modern profiles.
• Structural Glazing: In some designs, structural glazing is used, where glass is adhered directly to the frame using high-strength adhesives. This results in a smooth, uninterrupted glass façade with minimal visible framing.

3. Solar Control and Shading Devices

• Solar Control Glass: To improve energy efficiency, curtain walls can incorporate solar control glass, which reduces solar heat gain while maintaining visibility. This helps keep the building cooler in the summer without blocking natural light.
• Integrated Shading Systems: Some curtain walls come with integrated shading devices, such as external louvers, brise-soleil, or internal blinds, to control solar exposure and reduce glare.