Roofing Terms & Definitions. Asphalt: A bituminous waterproofing agent applied to roofing materials during manufacturing. Back Surfacing: Fine mineral matter applied to the backside of shingles to keep them from. sticking. Blisters: Bubbles that may appear on the surface of asphalt roofing after installation.
Symbol(noun) an abbreviation standing for the name of an element and consisting of the initial letter of the Latin or New Latin name, or sometimes of the initial letter with a following one; as, C for carbon, Na for sodium (Natrium), Fe for iron (Ferrum), Sn for tin (Stannum), Sb for antimony (Stibium), etc.
Symbolism is the use of symbols to signify ideas and qualities by giving them symbolic meanings that are different from their literal sense.Symbolism can take different forms. The dove is a symbol of peace. 2  A red rose or red color stands for love or romance. 3  Black is a symbol that represents evil or death. 4  A ladder may stand as a symbol for a connection between the heaven and the earth.