Overhang Annual Analysis

This tool lets you visualise the degree to which a horizontal overhang shades a window throughout the year. It can also be used to calculate the solar power incident on the window, relative to full, direct sun.

Please read the important instructions, notes, and FAQ pages before using this tool.

GENERAL INPUTS
°
  MORNING   AFTERNOON  
  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  
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  
  MORNING   AFTERNOON