Categories of Curtain Wall Fabrication:
Here you will have Curtain Wall fabrication with some categories according to uses and principles such as:
Semi Unitized System
The unitized curtain wall is a kind of façade
maintenance system that the unitized panel assembled by a variety of components
of curtain wall (including glass panels and supporting frames) in a factory,
and then delivered to the site for hanging installation of which components are
fixed to main structure by pre-embedded Connecting Parts.
For unitized curtain walling, approximately 30% of the work is done on-site, while 70% is carried out in the factory. The whole assembly of the units in the factory brings several benefits.
§ Improved quality control
§ Concurrent manufacture and site preparation- units can be assembled while the structural frame is being built.
§ The facade can also be completed a floor at a time, allowing parallel internal work
§ Quicker installation, requiring less manpower on site
§ This system is mainly used in high-rise building without requiring exterior supports like cranes or scaffolding. Only mini cranes or a temporary hoist can be held over the floor to keep it supportive during installation.
§ Can be installed from the interior of the building. This is ideal for extremely high towers or building sites where there is a tight footprint
§ Less space is needed on site for layout.
Semi Unitized System:
Semi-unitized Curtain Wall has combined features of stick curtain wall and unitized curtain wall. Semi unitized system vertical mullions and horizontal transoms are installed on brackets which are anchored to the columns/slabs. Glass is structurally glazed to the aluminum sub-frame by the structural sealant.
Advantages of Semi-Unitized Glazing
The vertical mullions mostly semi-unitized glazing systems can span two floors with ease and as a result provide greater structural efficiency.
Most semi-unitized glazing systems have shop-assembled or off-site assembled frames. This saves the time and cost.
selection and usage of material
Stick curtain walling systems are more versatile and allow us to integrate other systems such as sliding doors and windows. They tend to be less specialized and can be built by all types of fabricators as they are not dependent on having a large factory.
However, stick systems do require multiple
steps to erect and seal the wall, which means more time is spent on-site– an
approximate rule of thumb would be that 70% of the work is carried out on-site,
with 30% in the factory. This incurs further costs, such as laborer's
Extensive availability of system choice on the market at very competitive prices and short lead-in times
Suited for angular or complex facades
Sightlines are slimmer than Unitized Curtain Walling
Quicker production processes in the factory
of the building can be changed quickly