When it comes to curtain wall buildings, structural glass curtain wall is one of the most distinctive features of a modern building today. As a rule, structural glass curtain wall system used in the facades will set them apart from associated building technology the most. It has been the pursuit of transparency in these long-span facade structures that has driven the development of structural systems.
In applications, curtain wall systems generally range from manufacturer’s standard wall to specialized custom curtain wall. Custom walls become cost competitive with standard systems as the wall area increases. In most cases, custom curtain wall can be made to measure and can even be made to work with curves in buildings. It has many features that allow it to be moulded with ease and also it can be made into a variety of designs with its lightweight characteristics. Structural glass curtain walls can be classified by their method of fabrication and installation into the following general categories: stick systems and unitized (also known as modular) systems. In the stick system, the curtain wall frame (mullions) and glass or opaque panels are installed and connected together piece by piece. In the unitized system, the curtain wall is composed of large units that are assembled and glazed in the factory, shipped to the site and erected on the building. Vertical and horizontal mullions of the modules mate together with the adjoining modules. Modules are generally constructed one story tall and one module wide but may incorporate multiple modules. Typical units are five to six feet wide.
In recent years, aluminium curtain wall system has been widely used in curtain wall buildings in the world. Aluminum has a very high thermal conductivity. It is common practice to incorporate thermal breaks of low conductivity materials, traditionally PVC, Neoprene rubber, polyurethane and more recently polyester-reinforced nylon, for improved thermal performance. Some “poured and debridged” polyurethane thermal breaks shrink and stress forms in the thermal break when the exterior aluminum moves differently from the interior aluminum due to temperature differences. Back-up mechanical attachment of the two halves of the frame is recommended (e.g. skip debridging or “t-in-a box”). A true thermal break is ¼” thick minimum and can be up to 1″ or more, with the polyester reinforced nylon variety.
We are committed to producing various types of steel products for your choice in your building project in future. Our products are all designed for the fast and easy installation of curtain walls. Contact us if you have any need in your project.
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Post time: Mar-24-2021