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A sun path diagram for Los Angeles with solar elevations below 30° outlined.  

A sun path diagram for Los Angeles with solar elevations below 30° outlined.  

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Solar reflections are a fact-of-life for many who live in cities. However, modern architecture with high window-to-wall ratios and curved, organic forms can lead to building facades that reflect sunlight in unanticipated ways. Reflective facades have the potential to both scatter and concentrate solar reflections; at a minimum, this can be a nuisan...

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... it is important to note that the thermal impacts of reflections during midday periods are more of a concern due to the greater intensity of solar insolation at these times.) As an example, Figure 3 is a sun path diagram for Los Angeles, note how the sun will cover over 225° of azimuth during a summer day, exposing not just the southern facades but potentially the entire building envelope to direct sunlight and potentially cause glare. Also notable is that low solar inclination angles (say below 30°, which is outlined in black) can occur from ENE to SSE and from SSW to WNW depending on the time of year. ...

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