United Facade

What is Curtain Wall

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What is Curtain Wall?

A curtain wall is a type of building envelope that consists of a non-structural outer covering of a building that is attached to the structural frame and encloses the building’s interior. It is designed to protect the building from the elements, including rain, wind, and sunlight, and to provide a layer of insulation that helps to regulate the temperature inside the building. Curtain walls are typically made up of panels of glass or other transparent or translucent materials that are supported by a frame, and they can be either unitized or stick-framed.


Unitized curtain walls are made up of large panels that are pre-assembled in a factory and shipped to the site for installation. They are typically made of aluminum or other lightweight materials and are attached to the building using bolts or other fasteners. Unitized curtain walls offer a number of advantages over stick-framed curtain walls, including improved energy efficiency, enhanced structural integrity, and faster installation times. However, they are typically more expensive to install than stick-framed curtain walls and may not be as flexible in terms of customization.

Stick-framed curtain walls, on the other hand, are assembled on site using individual pieces of framing material, such as aluminum or steel, that are cut to size and connected using fasteners such as screws or bolts. Stick-framed curtain walls are a cost-effective option that can be easily customized to meet the specific requirements of a project. They are also relatively easy to install and maintain, making them a popular choice for many building projects.

In addition to the type of framing system, there are several other factors to consider when selecting a curtain wall for a building project. These include the size and shape of the opening, the desired level of visibility and natural light, the desired aesthetic, and the budget. The appropriate type of curtain wall for a project will depend on these and other factors, and it is important to carefully consider all of the available options in order to choose the best system for the project.

Overall, curtain walls play a crucial role in the design and functionality of a building, and it is important to choose the appropriate system for the specific requirements of the project. Whether you choose a unitized or stick-framed curtain wall, it is important to work with a reputable supplier and contractor to ensure that the system is installed correctly and meets all necessary codes and standards.

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