Abstract: A heating cable splice having two bulges interspersed between three sections of the heating cable splice having a smaller width than a width of the two bulges, wherein first, second, third, fourth, and fifth sections of the heating cable splice are adapted to receive electrical cabling therein, and wherein the heating cable splice is adapted to be positioned between upwardly extending bosses on a base membrane. A heating cabling system and method of providing a method of forming a heating cabling system is also disclosed.