Module 4 Template

Link to Student
Submitted For
Module 4 - Skin and Bones

Working link to your Revit cloud model in Forma Data Management.

https://acc.autodesk.com/docs/files/projects/bac3f1a2-61c1-4c60-8568-3ec0515c89f3?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.sa2juwdbRtiD-OsHjhCvIg&entityId=urn%3Aadsk.wipprod%3Adm.lineage%3AMPFE_j_URqmWAF2feMGnOA&viewModel=detail&moduleId=folders

Working link to your Individual Forma Board

https://app.autodeskforma.com/board/up_6x7rvii13d/board_f90d1fcd-071e-4714-8533-119888dd63da?x=-1629.458184122992&y=-438.230827748656&w=9056.705789709718&h=4763.523478764026

Forma Board and Site Design are shared with the teaching team (Cesar Escalante, Glenn Katz, Juan Bautista Romaniuk, Luis Pablo Trujillo) with View access.

DF sheet set at D size, 30 by 42 inches, six sheets. Delete any blank sheets.

SKim_M4_SheetSet.pdf212.9 KiB

Screenshot of your Insight result alongside your Week 3 Forma result.

image

Design memo of 300 to 400 words: what survived the handoff, what you rebuilt, what assembly choices you made and why, and where Revit and Forma disagreed.

What survived the handoff.

Most of the Forma model came through: the tower and podium massing, floor heights, unit walls, rooms, stairs, and the three elevator shafts. The levels were messier than I expected. Each building came in with its own set, and everything was measured from sea level, so L1 read 193 ft. I merged them into one set from L1 to Roof and moved the project base point so L1 reads 0'.

What I rebuilt.

The biggest change was structural. Eight stories is more than light gauge steel can do over a one-story podium, so I extended the concrete podium to three levels and dropped the residential floor-to-floor height from 11 to 10 ft to keep the roof at 85 ft. The trade-off is less ceiling space for ducts, which I will have to deal with in Week 7. I also replaced all of the Forma windows, because once I changed the wall types they no longer fit, and I removed the doubled wall where the tower and podium meet. For the core, I filled in missing stair flights, added a stair to the roof, placed elevators on every level, and cut shafts for both stairs, the elevators, and two mechanical risers.

Assembly choices.

The upper walls are 6 in. LGS studs with mineral wool, 3 in. of exterior mineral wool, and a fiber cement rainscreen. Revit reports R-45, but steel studs leak heat, so I think about R-22 is closer to real. The podium walls are 8 in. concrete with 5 in. of rigid insulation, R-22. For glass, I used low-E triple on the south and west (U 0.26, SHGC 0.36) and low-E double on the north and east (U 0.35, SHGC 0.60). I avoided the reflective option because it only let in 18% of visible light, and daylight was the reason I picked this facade in Week 3. The tower roof is R-34, and the podium roof became a resident garden with a paved terrace off level 4 and a planted area. On the south side, 2 ft overhangs fill the gaps between balconies, sized so they block the June noon sun but still let in winter sun.

Where Revit and Forma disagreed.

Forma estimated 30 kgCO2e/ft² and an EUI of 29, while Revit Insights gave about 5.8 kgCO2e/ft² and an EUI of 42. Both used the same envelope and interiors scope, so the gap comes from inputs. Forma applied default concrete walls and floors across 106,938 sf, while Insights counted only elements in its energy model and flagged custom materials without carbon data, which likely understates embodied carbon. Operational energy rose because Revit reads the actual glazing, layers, and zones.