The following standards shall control the measurement of sign area and sign height.
1. Measurement of Sign Area. Refer to Figure 156.10.C-A. Sign Area Measurement and Figure 156.10.C-B. Measurement for Signs with Multiple Faces.
a. Signs with Backgrounds. For signs mounted upon a background, sign area is measured as the entire area of the sign face or background of the sign used to distinguish the sign from the structure upon which it is placed, unless otherwise noted in this Section. Sign area does not include any supporting framework or bracing, unless such framework or bracing is part of the message or sign face.
b. Signs with Freestanding Letters and/or Logos. For signs consisting of freestanding letters and/or logos, sign area is measured as the total area of the smallest geometric shapes that will enclose each word and graphic in the display. Sign area does not include any supporting framework or bracing, unless the framework or bracing is part of the message or sign face.
c. Signs with Multiple Faces. For signs with multiple faces, if the interior angle between the sign faces is 45 degrees or less, sign area is the area of one sign face. If the angle between the sign faces is greater than 45 degrees, sign area is the sum of the areas of the sign faces. Sign area does not include any supporting framework or bracing, unless such framework or bracing is part of the message or sign face.
2. Measurement of Sign Height.
a. Ground-Mounted Signs. The height of a ground-mounted sign shall be calculated as the vertical distance measured from grade to the highest point of the sign.
b. Building-Mounted Signs. The height of a building-mounted sign shall be calculated as the vertical distance from the base of the sign face to the highest point of the sign face, unless otherwise noted in this Section.