Working link to your Revit cloud model in Forma Data Management.
Note: Revit wouldn’t let me save as a cloud model (my account doesn’t have Cloud Models for Revit access), so I uploaded the .rvt to Forma Data Management instead.
Working link to your Individual Forma Board
https://app.autodeskforma.com/board/up_qom1okmnwc/board_5fa9dfc5-56e9-4a3c-8e85-ff6c6a1d010d
DF sheet set at D size, 30 by 42 inches, six sheets. Delete any blank sheets.
Screenshot of your Insight result alongside your Week 3 Forma result.
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.
Most of the massing survived the handoff from Forma to Revit. All 8 levels came through at 11 ft floor to floor, the U shape footprint stayed where it was on the site, and the walls, floors, roof, windows, partitions, rooms and both stair stacks all showed up as real Revit elements. The Week 3 unit layout was there too, so I mostly just named the rooms (2 Studio, 6 1 Bed, 4 2 Bed and 2 3 Bed per typical floor). I also renamed the levels.
What I had to rebuild was everything Forma didn’t know. Every wall was the same generic 16 inch wall and every floor the same basic slab, so I made real assemblies. The upper floors are a wood stud wall with mineral wool and fiber cement siding (about R-30), and the two podium floors are concrete with XPS and cement plaster (about R-23). Floors are slab on grade at the ground, an 8 inch concrete podium slab at Levels 2 and 3, and wood I-joists with gypcrete above. The roof is a green roof at about R-41. I also put the elevator in the hoist, added a service shaft, swapped the lobby door for a 16 ft storefront, and added 2 ft overhangs on the southeast windows since my Week 2 sun study showed that side gets the most sun. North glass got SHGC 0.40 and south and west glass got 0.25.
The biggest disagreement was carbon. Both tools used the same scope (envelope and interiors, A1 to A3 plus operational, 60 years), but Forma gave me 19.80M kgCO2e (193 kg/sf) and Revit Insight gave 36.84M (about 393 kg/sf). Embodied actually went down, from 2.82M to 0.49M, because Forma assumed 8 inch concrete walls everywhere and Revit knows the upper walls are wood stud. Operational almost doubled though (16.98M to 36.36M). Insight defaulted the building type to Office with default systems, so cooling is huge, and the area came out smaller (about 93,800 sf vs 102,395 sf) because Revit measures differently. So I trust the Revit embodied number more and the Forma operational number more until I set Insight to Multifamily. In the embodied breakdown the biggest piece was the windows (about 141K kg), then exterior walls (about 115K), which makes my glass amount a carbon decision too, not just a daylight one.