Overhang Annual Analysis
BETA RELEASE of new version

This tool lets you visualize the degree to which a horizontal overhang or roof shades a window throughout the year, and it also calculates the effect of the overhang on solar heat gain. Please read the important instructions, notes, and FAQ pages before using this tool.
BETA RELEASE: This is a new version of Overhang Annual Analysis with many new features, including calculating heat gain, and taking diffuse and reflected light into account. Being a beta release, note that it's not as well tested as the current release. Please e-mail the author if you have any questions or suggestions, or have any problems using this tool. Thanks, and your feedback is much appreciated!

  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 MONTHLY
Jan                                   Jan  
Feb                                   Feb  
Mar                                   Mar  
Apr                                   Apr  
May                                   May  
Jun                                   Jun  
Jul                                   Jul  
Aug                                   Aug  
Sep                                   Sep  
Oct                                   Oct  
Nov                                   Nov  
Dec                                   Dec  
  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 ANNUAL

Support Overhang Annual Analysis!

The development and maintenance of Overhang Annual Analysis is supported 100% by voluntary user donations. If you found this program helpful, please consider making a small donation...this can be done quickly and securely by credit card, or you can mail a check. Suggested donations are $25 for commercial use, and $10 for personal use. Please visit the Shareware page for details, or you can make a quick PayPal or credit card donation to the right. Thanks!

Commercial ($25)
Personal ($10)

Mailing List

The author maintains a private mailing list of users of SunAngle and his other shareware solar design tools, and is happy to send you very occasional notices about software upgrades and other items of interest. Such notices do not occur more frequently than a few times a year.

If you're interested in joining the SunAngle mailing list, please send e-mail to the author with this request. Your e-mail address will never be used for commercial purposes or given to anyone else for any reason.