Design Journal Entry - Module 7

Journal Entry For
Module 7 - Building Envelope Systems

Building Envelope:

I’ve really been working on incorporating a curtainwall system into my building to have natural light in my building. When I first started working on my building, it looked like a big gray lump, so I think having the glazing not only works with the building energy, but also bring a big design element as well. I also want to focus on the thermal properties of my building, so using exterior EIFS walls along with the glazing. I have been playing around with the properties of these, and will continue to do so. In offices, conference rooms, and other spaces, I am making sure that there are windows available as well. I added a green roof to my lower roof, but need to look into including parapet walls to that. I want to start adding a few architectural features as well.

  • Additional window shades
  • Canopies at the upstairs café and downstairs garden. I have one currently upstairs but it is a bit boring.
  • Extend the roofing overhang to offer additional shading
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I also ran a solar analysis through Revit and this is what I generated. I don’t necessarily want to cover the entire roof with panels so I might need to scale this back. This analysis includes 80% coverage of the roof currently.

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Energy Model:

Running my current building model through Insight generated the current performance.

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This was honestly surprising to me because I haven’t been focusing too much yet on my building performance, more so just getting a building put together that I am happy with that looks good. I would definitely like to improve this as much as I can. The main things that I would like to focus on are:

  • Rotating the building by 90 degrees
  • 0.3 W/SF lighting efficiency
  • Adding daylighting and occupancy controls
  • 0.6 W/SF plug load efficiency
  • Using ASHRAE package terminal heat pumps (not sure if this is possible?)
  • 16% PV panel efficiency
  • 20 year PV panel payback limit
  • 60% PV panel coverage

Here is what my EUI meter is at now with all of those adjustments calculated in:

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The key tiles driving this are the occupancy, lighting, power, HVAC, and PV tiles. I’ve found that the building envelope related tiles really don’t do a lot when you play around with them.

Daylight Analysis:

I tried running the Lighting Analysis for Insight on my model, but it said it required a credit which I did not have, so I chose to do the illuminance renderings instead. Here are three key areas:

Downstairs Lobby:

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1st Floor Hallway

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2nd Floor Seminar Room

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I think that upstairs might have better natural light than downstairs according to these renderings, but I still want to play around with this. The building still doesn’t have ceilings added in yet so that might make things a little bit darker.

Here is the link to my design journal:

https://acc.autodesk.com/docs/files/projects/a1aab0b7-fb90-4335-b850-011955780722?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.1_rC-AtOTLaJ71uU2viHkw&entityId=urn%3Aadsk.wipprod%3Adm.lineage%3Aaa5MLGAgSGiAbfm8v9CP_Q&viewModel=detail&moduleId=folders