Designing custom glazing systems, such as structural glass walls or unitized curtain walls, can be a complex task that can vary widely from project to project. The level of complexity is typically driven by the architectural goals, constraints, and performance objectives. Similar to what a designer must consider with a standard system, performance criteria such as wind loads, wind-driven rain resistance, and thermal performance for the system must be met. In addition, fabrication limits and installation constraints limit what a designer can develop to meet these requirements.