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Journal Entry For
Module 7 - Building Envelope Systems
Created
Feb 14, 2025 6:45 AM
Last Edited
Feb 20, 2025 10:04 AM
Created by
Ziqi YuanFiles & media
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For 2 Units
Please share your design showing the features of the proposed building envelope, including the locations and characteristics of:
- the wall and roof surfaces
- the openings/glazed surfaces
- windows and/or curtain walls curtain walls and windows (awnings) for all levels
- doors two entrances on floor 1; glass doors to patio for levels 4 ,5, 6
- skylights atrium and skylights at roof
- any shading or sun control features
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.
Building Envelope Choices Only
EUI for different HVAC systems: best - 38.7; good - 47.7; all types average - 63.5
The settings are set to be close to the revit design. Key settings:
- All exterior walls are curtain walls using triple glazing glass.
- Roof: Wood Rafter 8" - Asphalt Shingle - Insulated
- Skylight:
- Floor: First floor: Conc Slab - 8'’
Other floors: Concrete 10”
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Building Envelope + Power & Lighting + HVAC + Photovoltaic Panels Choices
EUI for different HVAC systems: best - 22.8; good - 30.1; all types average - 42.9
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EUI Evaluation
Medium EUI for NYC buildings is about 55~60 kBtu/ft2.
https://portfoliomanager.energystar.gov/pdf/reference/US National Median Table.pdf
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.
- To analyze your model for 0 credits, be sure to choose a single level at a time and use 72 inch grid as the analysis resolution.
- 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.
2/20
Note: Level 5 floor can be set up as roof for solar analysis
Added floor materials
Changed interial doors to glass doors - Illuminance slightly improved. Cloud Render:
