Definitions for "Coal Tar Pitch"
A type of coal tar used in dead-level or low-slope built-up roofs. It is not for use in roofs exceeding 1/4" in 12" (2%) slope.
also called Tar - A bituminous material which is a by product of coal processing. It is used as the waterproofing material for tar roofs and gravel roof.
A dark brown to black, solid material obtained as a residue in the partial evaporation or distillation of coal tar.