Shrinkage cracking of the bituminous surface of built-up roofing, or the exposed surface of smooth-surfaced roofing, in which the loss of volatile oils and the oxidation pf compounds under solar radiation produces a pattern of deep cracks with the scaly look of an alligator's hide. It occurs only in unsurfaced bitumen exposed to the weather.
Named for a pattern of cracks resembling an alligator hide. A condition of paint or aged asphalt brought about by the loss of volatile oils and the oxidation caused by solar radiation. "Alligatoring" is the result of the limited ability of paint or asphalt to expansion or contraction due to temperature changes.
Char patterns formed on paint or burned wood remains, usually in the shape of blisters. see also: Depth of Char Indicators