A semi-unitized curtain wall glazing system is a type of structural glazing where the primary structural framing components are erected individually as an erector set. In this set, the vertical mullions are attached first to the floor slabs and the horizontals are attached to the vertical mullions to resemble a grid. The glass panel and the spandrel, which can be either glass or aluminium are shop glazed and installed into the assembled grid work. The joineries and perimeter sealants are fields installed. The semi-unitized systems are largely anchored to the face of the slab as embedded plates or inserts. The vertical mullions in most semi-unitized glazing systems can span two floors with ease and as a result, provide greater structural efficiency.

Glazewell Systems Pvt Ltd is specialises in the design, supply and installation of frameless structural glass assemblies in armor plate or toughened glass, including bolted glass systems. A "Semi unitized" curtain wall system is one in which the primary structural framing components are erected individually in the eld like an erector set, typically with vertical mullions attached rst to the oor slabs and the horizontals attached to the vertical mullions. Then, the vision glass and spandrel materials (typically glass, aluminium panel or stone) are shop glazed and installed into the assembled grid work. All joinery / perimeter sealants are eld installed.

In a semi-unitized glazing system, the curtain wall is assembled partly in the factory (pre-fabricated or pre-assembled) and partly on-site. The term "unitized" implies that portions of the curtain wall, often referred to as "units," are pre-assembled in a factory setting. On the other hand, "semi-unitized" means that while some components are prefabricated, a portion of the assembly still occurs at the construction site.

• Factory Fabrication:
  Certain components of the curtain wall, such as the frames and glazing, are manufactured in a controlled factory environment. This can enhance the precision and quality of the components.


• On-Site Assembly:
  While some components are pre-assembled in the factory, the final installation and connection of these units occur on-site. This allows for greater flexibility in adapting to specific site conditions.


• Installation Efficiency:
  Semi-unitized systems can lead to faster installation times compared to traditional stick-built curtain walls where most assembly occurs on-site. This efficiency can contribute to overall project time and cost savings.


• Quality Control:
  Factory fabrication allows for better quality control, as the components are produced under controlled conditions. This can result in higher precision and consistency in the final product.


• Structural Performance:
  Semi-unitized systems are designed to meet specific structural and performance requirements, such as resistance to wind loads, water infiltration, and thermal efficiency.