Take The Quiz To Learn About Curtain Wall Design

The main feature of an SSG (Structural Silicon Glazed) curtain wall is that it utilizes silicone to secure the glass and act as a weather seal on the exterior, rather than using a pressure plate and cover. This means that the glass is directly bonded to the structure using silicone, providing a seamless and aesthetically pleasing appearance. Additionally, the use of silicone as a weather seal helps to prevent water infiltration and improve the overall performance of the curtain wall system.

Stick systems and unitized systems are the two major categories of all curtain wall systems. Stick systems involve assembling the curtain wall on-site, with individual components such as mullions and glass panels installed separately. This allows for flexibility in design and easier replacement of damaged components. On the other hand, unitized systems are pre-fabricated off-site and installed as complete units. This method offers faster installation and better quality control, but may have limitations in design flexibility and replacement options.

The correct answer is "All of the above". This means that all the advantages mentioned in the options are true for a Unitized system compared to a Stick System. It requires less space at the project site for staging because it comes in modules. Erecting the modules in close sequence allows for a quick enclosure of the building. Additionally, most of the labor is conducted in a shop environment where rates are less.

The main feature of sided SSG curtain wall systems is that the exterior glass surface is flush with no projecting pressure plates or covers from the interior mullions. This means that the glass panels appear to be stacked with spider connections between them, giving the system a sleek and seamless look. Additionally, tempered glass units can be secured with tensioned cables behind them, further enhancing the aesthetic appeal and structural integrity of the curtain wall system.

The correct answer is "Broken down into individual components." This means that the stick systems are not pre-built or assembled in modules before arriving at the project site. Instead, they are delivered in separate parts or components, which will then be assembled on-site. This allows for more flexibility in installation and customization according to the specific requirements of the project.

The covers on a curtain wall function as a "Rain Screen" which provides multiple benefits. Firstly, they divert cascading water from reaching critical joints by serving as a capillary break. This helps to prevent water infiltration and potential damage to the structure. Secondly, they prevent wind pressure from forcing water back into the system through the weeps. This ensures that the water is effectively drained out of the system. Lastly, the covers create a baffle effect that shields the weeps, allowing the system to pressure equalize and weep moisture effectively. Therefore, all of the above benefits are provided by the covers on a curtain wall.

Seismic forces are not capable of directly moving water. Seismic forces refer to the vibrations and movements caused by earthquakes or other geological activities. While seismic forces can cause water to move indirectly by shaking the ground or causing landslides near bodies of water, they do not directly move water like pressure differential, kinetic energy, or capillary action can. Therefore, seismic is the correct answer as it is not a force that can directly move water.

Custom project specific system refers to a curtain wall that is specifically designed and engineered for a unique project. This means that it may have different components, configurations, or performance requirements compared to standard or modified curtain wall systems. Therefore, new product-specific testing is more likely to be required for a custom project specific system to ensure that it meets the specific project's requirements and performs as intended.

Expansion Sleeve is not a typical method of anchoring a curtain wall system. Typically, curtain wall systems are anchored using methods such as edge angle, embed unistrut, and top of slab angle. Expansion sleeves, on the other hand, are typically used for anchoring other types of structures or systems, such as pipes or cables, and are not commonly used for curtain walls.

The Design Principle of "Pressure Equalization" is balancing the air around each light of glass with the adjacent outside air pressure so that it can weep. This means that the pressure inside the glass is equalized with the pressure outside, allowing any moisture or condensation to escape through small openings or weep holes. This helps to prevent any buildup of pressure or moisture within the glass, ensuring its durability and longevity.