Lets users visualize the shading performance of a window overhang for an entire year. Overhang Annual Analysis tool accepts a location and the dimensions of the window and overhang as inputs, and produces a chart depicting the amount that the overhang shades the window for each hour of the day, for each month of the year.
Screen Shots
Keywords
window, overhang, shading, solar
Validation/Testing
Outputs verified against an overhang shadow calculator with an independent methodology, also produced by the author.
Expertise Required
None.
Users
Unknown, new tool, released August 2007.
Audience
Architects, builders, homeowners, passive solar designers, energy analysts
Input
Location, window dimensions, overhang dimensions.
Output
Chart with visual representation of overhang performance for each hour for each month of the year.
Computer Platform
Any web browser.
Programming Language
Javascript
Strengths
Instant visualization of a large dataset; very easy to use.
Weaknesses
Not very precise, since it has such a broad scope; only designed for long, horizontal overhangs.
Contact
Availability
Web-based shareware...free to use; $10 to $25 donation requested if you find the program useful; the tool's web site is: http://susdesign.com/overhang_annual.
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