BIMtopia

Design Journal Entry - Module 7

Journal Entry For
Module 7 - Building Envelope Systems

Please enter Your Name to link to your Design Journal, and paste a link to your personal folder on ACC in the ACC Folder Link field above.

For 2 Units

Please share your design showing the features of the proposed building envelope, including the locations and characteristics of:

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  • the wall and roof surfaces

Wall

For the wall, I used the wall parameters as followings:

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The appearance of the wall is:

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Roof

The main roof slopes to the south and I plan to fill the top with solar panels to make the most of the space on the roof. In addition, the roof retains part of the edge protruding, providing partial shading in summer, while still allowing sunlight to enter the building in winter when the sun altitude angle is lower

For the main roof, I use EPDM as finish, rigid insulation as the thermal/air layer, and use metal stud lay, steel bar as the structure. This type of material provides a surface that is stable and adaptable to California weather.

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For the secondary roof above the garden on the second floor, I designed a green roof. This allows the building to retain water during the rainy season and regulate temperature during the dry season

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  • the openings/glazed surfaces

    • Curtain walls:

    For the south-facing exterior wall of the building, I mainly used the curtain wall to let a lot of natural light into the exhibit room. The performance and the parameters of the curtain walls are shown in the figure below.

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    The appearance of the curtain wall is:

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    Windows:

    For the lobby, exhibit areas, and office that do not have curtain walls, I used the window parameters as followings:

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    The appearance of the window is:

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    For restrooms, I used the window parameters as followings:

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    The appearance of the window is:

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    doors

    For the entrance doors to the lobby on the first floor, I used the door parameters as followings:

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    The appearance of the door is:

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    For the door of the exhibit room on the first and second floor, I used the door parameters as followings:

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    The appearance of the door is:

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    For the door of the other rooms on the first and second and third floor, I used the door parameters as followings:

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    The appearance of the door is:

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    skylights

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  • any shading or sun control features

I extended the south eaves of the roof to seven feet, so that the shade of the eaves was enough to cover the curtain wall during the hottest midday hours of the summer. In winter, at noon, the sun shines as far into the curtain wall as possible.

summer:

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winter:

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Also, I put the light shelf in the curtain wall. This effectively blocks 80 percent of direct sunlight in the afternoon

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For 3 Units

  • Use your Building Element Model to create an Energy Model.
  • Submit this Energy Model to the Insight analysis tool to explore how the choices and specifications you’ve made in your Building Element Model affect the predicted energy performance.
    • Be sure to set the Operating Schedule factor tile to use the BIM value.
    • Narrow the range of values being considered for the building envelope-related factor tiles to focus on the BIM Model value or better.
  • Explore how other factors (such as Photovoltaic panel options) can further improve your building performance — by using renewable energy to complement your energy saving envelope features.
  • Share the results of your Insight optimization:
    • Include an image of the EUI meter and range indicator after you’ve made your adjustments to show what your current assumptions predict and how much potential there is for additional improvements.
    • List the key Factor Tile settings that are driving these results.

For 4 Units

  • Use one of the Daylight Analysis methods demonstrated to assess the daylighting levels available with your proposed building envelope design:
  • Choose one of these methods:
    • Option 1: Use the Revit Lighting Analysis extension to produce an Illuminance Map of one of the levels of your proposed design.
      • Be sure to watch the videos for tips about what you’ll needed to include in your building model for the lighting analysis to produce valid results. For example, you’ll need to place Rooms and Floors.
      • Paste an image of the resulting Illuminance Map.
    • Option 2: Use the Revit Cloud Render tool to produce Illuminance Renderings of three key areas in your building model.
      • Place cameras in your model to create 3D camera views to be rendered.
      • Use the View > Cloud Render tool to generate Illuminance Renderings for these camera views.
      • Paste images of the Illuminance Renderings into your Design Journal posting.