Practice Exercise: Building Envelope Systems

Your Name

Building Envelope Decisions

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  • Orientation
    • 135 degrees
  • Window-Wall Ratio
    • South = 65%
    • North = 0%
    • West = 0%
    • East = 30%
  • Shades
    • South = 1/6 window height
    • North = 1/6 window height
    • West = 1/6 window height
    • East = 1/6 Window height
  • Glass
    • South = triple low emissivity glass
    • North = triple low e
    • West = triple low e
    • East = triple low e
  • wall construction
    • R38 wood
  • roof construction
    • R60
  • infiltration
    • 0.17 ACH
  • Window/Wall Ratio for orientations
  • glazing surfaces
  • window shading

building envelope + power & lighting

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  • Lighting Efficiency
    • 0.3W/Sf
  • Daylighting and Occupancy Controls
    • Use both
  • Plug Load efficiency
    • 0.6W/Sf
  • HVAC
    • ASHRAE Package Thermal Heat Pump

building envelope + power & lighting + photovoltaic panels

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  • WWR
    • East and South changed to 95%
  • PV panel efficiency
    • 20.4%
  • PV - Payback Limit
    • 20yr
  • PV surface coverage
    • 90%

Your building envelope recommendations for this practice exercise should feature:

  • Your recommended settings for the Insight Factor tiles
  • A screenshot from Insight showing the Predicted Mean EUI and the range of values resulting from your assumptions