Structural characteristics.
Combustible plastic materials which, when tested in accordance with the American Society for Testing if Materials Standard Method for Test for Flammability of Plastics over 0.050 inch in thickness (D635-44), adopted in 1944, but no faster than 2.5 inches per minute in sheets of sixty-thousandths-inch thickness.
The entire area within a single continuous perimeter enclosing the extreme limits of writing, representation, emblem or any figure of similar character, as included within the definition of a sign, together with any frame or other material or color forming an integral part of the display or used to differentiate such sign from the background against which it is placed, excluding the necessary supports or uprights on which such sign is placed. The total area of each face of double-faced permanent and double-faced temporary signs shall be considered as one area.
The surface made available by the structure, either for the direct mounting of letters and decoration or for the mounting of facing material intended to carry the entire advertising message.
The surface of the sign upon, against or through which the message of the sign is exhibited.
The vertical distance from the uppermost point of a sign, including the sign structure or structural trim, to the average grade directly below the sign.
The letters, illustrations, symbols, figures, insignias and other devices employed to express and illustrate the message of the sign.
The moldings, battens, cappings, nailing strips, latticing and platforms which are attached to the sign structure.
The supports, uprights, bracing and framework of the sign.