Curtain wall facade – Types | Components

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The facade industry is booming in India. The rise in spending power of the people, especially in Tier 2 and Tier 3 cities, has led to them investing in better aesthetics, look, and feel of buildings. According to Grand View Research, the Indian facade market is pegged at Rs. 15000 crore with expected annual growth rate of 20% between 2019 and 2025.

Various types of facades are used for commercial buildings like steel facade, panel frame facade, curtain wall facade, clay facade, aluminium composite facade, precast concrete facade, etc. Out of these facades, curtain wall facades are one of the most common types of facade.

As the demand for facade rises across India, the need for custom components that are used in making facades will also rise. In the normal course, facade manufacturers order custom parts through the traditional process of sourcing and procurement from suppliers, which is often inefficient owing to lack of transparency across the value chain. has developed an alternative way of getting components manufactured, which brings efficiency and speed to the sourcing and procurement process. has developed an ecosystem of suppliers and customers, enabled through the digital platform, The customers can send requirements of facade components to‘s digital platform. The platform matches the requirements to the right supplier and takes the responsibility of managing the project, right from raw material procurement till the delivery of the product. This alternative way allows customers to focus on designing the aesthetics of facades, marketing, and sales of facade.

In this blog, we take a look at one of the fastest growing facade segment: curtain wall facade, types of curtain wall facades, and components of curtain wall facade.

What is curtain wall facade?

curtain wall is a thin, lightweight and usually aluminum framed wall which forms the outer covering of a building. Curtain wall is non-structural i.e. they only carry their own weight and doesn’t carry floor or roof loads of the building.

Types of curtain wall facade

The types of curtain wall facade includes

  1. Stick or framed systems
  2. Unitised system
  3. Ladder system
  4. Rainscreen principle

Components of curtain wall facade

The components of curtain wall facade are:

Mullion and Transom

mullion transom.png
Source: Facades and interfaces

mullion is a vertical beam that is used to divide window glazing into smaller units. They can provide structural support to window arch.

A transom is a horizontal beam that is used to divide window glazing into different sections.


Mullions are attached to the building with brackets at slab edges spanning 5-7m each. Mullions above and below are attached via internal sleeves.  Transoms are fitted to the mullions at predetermined points via brackets. And then, infill panels are fitted into rectangular openings created by mullions and transoms. The infill panel is typically a fixed glass, but can also be a combination of composite aluminum sheet, open sashes or stone.

Have a look at the below video to know how components are attached to the building wall to make a facade – for on-demand manufacturing of facade components

Partnering with provides three important benefits

  1. Manufacturing as a service offerings: Design for Manufacturability (DfM), technical counsel, project management, manufacturing of parts, quality control and product delivery. Manufacture in any range right from low-volume production to high-volume production.
  2. Manufacturing services: CNC machining, injection molding, vacuum casting, sheet metal fabrication, and 3D printing. These services are delivered through a network of supplier partners, and overseen by’s team of experts.
  3. Digital platform:‘s  digital platform has a user-friendly interface and provides a highly intuitive experience for ordering custom parts for manufacturing. It is aimed at bringing speed to the whole manufacturing process which will in turn streamline the industry across India. The platform offers unique features such as – a) Instant creation of “Request for Quotation (RFQ)” and Status Update b) “Design for Manufacturability (DfM)” Feedback c) Order Management d) Parts Management. Customers can register on the platform at to experience the power of barrier free manufacturing.

As the curtain wall facade sector grows, the demand for standard wall and custom wall will increase. can fulfill all the custom requirements as we can manufacture custom mullions, transoms, and brackets for curtain wall facade.

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