Module 3 - Points to Ponder

Facade automations generate a pattern across a whole building in seconds.

◦ What does the automation know, and what does it not know?

The automation understands the basic rules that are given to it, such as the size of the windows, the spacing between them, and the overall dimensions of the building's exterior. However, it does not necessarily understand how those windows relate to the rooms inside the building or whether the final arrangement makes sense from a design perspective. It can follow a pattern, but it cannot make every architectural decision for the designer.

◦ Where did the generated pattern need overriding, and why?

I had to make adjustments to the automated facade because some of the windows did not align properly with the interior layout. Since the rooms were different sizes, repeating the same window pattern across the entire exterior sometimes resulted in windows overlapping with interior walls or being positioned in awkward locations. I needed to make changes so that the facade worked with the actual arrangement of spaces inside the building.

◦ If the automation produces something that analyses well but looks wrong, which wins?

I think both appearance and performance need to be considered before making a final decision. A design might perform well in an analysis but still create problems with the building's appearance or functionality. At the same time, something that looks unusual is not necessarily a bad design. I would try to understand why the automated option performs better and then make adjustments that improve its appearance without losing too much of that performance. Ultimately, I think the best design is one that balances both.

What drives a project team's decision about floor to floor height?

◦ From a developer's perspective?

A developer would probably focus on how the floor-to-floor height affects the overall cost and usable space of the building. Taller floors can make the interior feel more open and attractive, but they can also increase construction costs and potentially limit how many floors can fit within the allowed building height. The goal would be to find a height that makes the building appealing while still being financially practical.

◦ From a designer's perspective?

A designer would be more concerned with how the height affects the experience of being inside the building. Ceiling height can influence how spacious a room feels, how natural light enters the space, and the overall appearance of the interior. For my office building, I would want the ceilings to be high enough to create a comfortable working environment without making the spaces unnecessarily tall.

◦ From an engineer's perspective?

An engineer would consider how the floor-to-floor height affects the structural system and the space needed for building services. The height needs to accommodate structural elements as well as mechanical, electrical, and plumbing systems. Engineers also need to consider how the chosen dimensions affect the building's stability and overall structural performance.

◦ From a builder's perspective?

A builder would focus on how practical and expensive the selected height would be to construct. Increasing the floor-to-floor height could require more materials, additional labor, and different construction equipment. Builders would want a design that can be constructed efficiently while still meeting the structural and architectural requirements of the project.

Last week we chose a massing option based on site evidence. This week you had to fit a program inside it.

◦ Where did the program and the massing disagree, and which one gave way?

The biggest challenge was fitting all the different office spaces into the building shape I had already developed. Once I started adding meeting rooms, open office areas, bathrooms, and circulation spaces, I realized that the layout was not as straightforward as it appeared from the exterior. Some rooms needed to be rearranged to make better use of the available floor area. I decided to keep the overall massing relatively consistent and make adjustments to the interior layout instead.

◦ What would have had to be true for you to change the massing instead of the program?

I would have considered changing the massing if the building could not reasonably accommodate the required spaces or if the layout created major problems with circulation and accessibility. For example, if there was not enough room for the necessary stairways, elevators, or office spaces, I would have needed to reconsider the building's dimensions. Since I was able to organize the program within the existing shape, I did not think a major change to the massing was necessary.

◦ Which of this week's program decisions will the structural engineer and the mechanical engineer assume you got right?

I think the engineers will rely on the locations of the main circulation areas, bathrooms, elevator, and mechanical spaces. These areas are important because they influence where structural elements and building systems can be placed. The mechanical engineer will need to understand how the rooms are organized to plan ventilation and other systems, while the structural engineer will need to account for the layout when developing the building's structural design.

Total carbon can now be estimated before materials are specified.

◦ How much confidence should a team place in that number at this stage?

I think the carbon estimate should be treated as a general indication of the building's potential environmental impact rather than an exact number. At this stage, many important details about the materials and construction methods have not been finalized. The analysis is still useful because it allows designers to compare different options, but I would not assume that the final building will have exactly the same carbon emissions as the early estimate.

◦ Which decision made this week has the largest effect on it?

One of the most important decisions I made was changing the window-to-wall ratio between my two facade options. I compared a design with 45% glazing to one with 30% glazing. The amount of glass affects the materials used in the exterior and can also influence how much energy is needed to heat and cool the building. I ultimately preferred the 30% option because I thought it offered a better balance between natural lighting, energy considerations, and appearance.

◦ How would you present it to a client without overstating its precision?

I would explain that the carbon analysis is an early estimate based on the information currently available in the model. Rather than presenting the number as a guaranteed result, I would use it to show how different design choices compare. I would also explain that the estimate could change as more specific materials, building systems, and construction details are selected.

At some point a conceptual model has to stop being conceptual.

◦ How do you know when a proposal is resolved enough to move into Revit?

I think a proposal is ready to move into Revit once the main design decisions have been made. This includes establishing the building's overall shape, number of floors, general facade design, and basic interior layout. The model does not need to include every small detail, but there should be enough information to begin developing the building more accurately. At that point, Revit becomes more useful because it allows the designer to work with actual building components.

◦ What is the cost of moving too early? Of moving too late?

Moving into Revit too early could make the design process more time-consuming because major changes would have to be made in a more detailed modeling environment. On the other hand, waiting too long could mean spending unnecessary time developing details in Forma that will eventually need to be recreated or corrected in Revit. Since Forma is mainly intended for early design, I think it is important to recognize when additional work in Forma is no longer helping the project move forward.

◦ Which parts of your Forma model do you expect to survive the handoff?

I expect the overall building massing, number of floors, general facade layout, and site location to transfer into Revit without requiring major changes. I also think some of the interior organization, such as the locations of office spaces and circulation areas, will provide a useful starting point. However, I expect that certain details, especially walls, floors, and other building components, may need to be adjusted once I begin working with the more precise modeling tools in Revit.