Tag Archives: solar geometry

Five Ecotect Functions that Need to Be Migrated to Revit

Green Building

Five Ecotect Functions that Need to Be Migrated to Revit

Originally published on May 18, 2016 by BNP Media through the Architectural Roofing & Waterproofing Blog. Eight years ago, Autodesk made a bold and decisive move toward prioritizing sustainable design tools when it acquired the assets of Square One Research, including their design performance modeling software Ecotect. To that point in time, Dr. Andrew Marsh had incrementally built the Ecotect platform into a light, versatile energy analysis tool. Its playful graphic outputs and high degree of interoperability made it a….

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Is Daylight Saving Time Necessary?

Green Building

Is Daylight Saving Time Necessary?

Originally published on March 7, 2016 by BNP Media through the Architectural Roofing & Waterproofing Blog. Spring Forward, Fall Back. We know the routine well, but have you ever wondered why the United States uses Daylight Saving Time (DST)? If you ask around, you’ll hear some interesting theories: …so kids don’t have to catch the school bus in the dark?      No. …to save energy?      Not really. …to benefit farmers by giving them an extra hour of daylight?….

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Understanding the Profile Angle

Green Building

Understanding the Profile Angle

Originally published on July 6, 2015 by BNP Media through the Walls & Ceilings Blog. If you’ve ever designed an overhang to protect a window, you have been confronted with the question of how far should it extend? It seems like a simple enough question, yet the factors to consider lead to ever more questions: …which way does the window face? …how much of the window should be protected? …how is the overhang length related to various Sun angles? At….

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Visualizing “Seasonal Lag” Effect

Green Building

Visualizing “Seasonal Lag” Effect

  I recently completed teaching a unit on the topic of solar geometry. Among the various facets of the subject matter, I talked to the class at length about the Earth’s orbit around the Sun (which, evidently, is a revelation to 1/4 of American population), the northern hemisphere’s 23.5° tilt toward and away from the Sun during the summer and winter, respectively, and how the distribution of radiant flux is affected by the relative tilt of the Earth’s surface at a….

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