Glass facades, also known as curtain walls, are widely used in modern architecture in India. These structures are made primarily of glass and aluminum or other lightweight materials. They serve multiple purposes, including providing an aesthetically pleasing appearance, allowing natural light to enter the building, and improving energy efficiency. Here are some common types of glass facades used in India:

Unitized Curtain Wall: Unitized curtain walls consist of pre-fabricated units that are assembled on-site. They are known for their efficiency in construction and offer excellent thermal performance. Many modern office buildings and high-rises in India feature unitized curtain walls.
Stick-Built Curtain Wall: Stick-built curtain walls are assembled piece by piece on-site. They allow for more flexibility in design but can be more labor-intensive to install compared to unitized systems.
Spider Glass Facade: Spider glass facades are characterized by the use of minimal framing and are held together with point-supported glass fittings. This design creates a sleek, transparent appearance and is often used in contemporary architectural projects.
Double-Skin Facade: Double-skin facades consist of an outer layer of glass and an inner layer of glass with an air cavity in between. This design helps improve insulation and reduces the impact of external noise. It is particularly useful in buildings in noisy or polluted urban environments.
Solar Control Glass Facade: Given India’s diverse climate, solar control glass is often used in facades. These glasses are designed to block or reflect a significant portion of solar radiation, reducing heat gain and the need for excessive air conditioning.
Reflective Glass Facade: Reflective glass facades are often used in commercial and high-rise buildings. They have a reflective coating that enhances privacy and reduces glare, while also reflecting heat and UV rays.
Low-E (Low Emissivity) Glass Facade: Low-E glass coatings are used to improve energy efficiency by minimizing heat transfer between the interior and exterior of the building. These facades are effective in reducing heating and cooling costs.
Structural Glazing: Structural glazing systems use silicone or other structural sealants to attach the glass directly to the building structure, eliminating the need for visible framing. This creates a sleek and contemporary look.
Custom Decorative Glass Facade: In some architectural designs, custom decorative glass facades are used to create unique and eye-catching aesthetics, often found in luxury hotels, malls, and high-end residential buildings.
Heritage or Traditional Glass Facade: In the renovation of heritage buildings or the construction of traditional-style structures, glass facades are often designed to blend with the historical or cultural context while providing modern functionality.

Glass facades are becoming increasingly popular in India due to their aesthetic appeal and energy-efficient properties. They are commonly used in commercial and institutional buildings, high-rise apartments, hotels, and modern residential complexes. The choice of glass and facade system depends on factors such as climate, energy efficiency goals, and architectural design preferences.