Abstract: In an aspect a heating system includes a grounded shield layer made of a continuous piece of metal; a heating element; and a rear adhesive layer comprising of a flame retardant material. The heating element is disposed between the grounded shield layer and the rear adhesive layer; and the rear adhesive layer has a bottom surface that is configured to adhere to at least one of a shingle or an area of a roofing deck. Additionally, a controller is included and is configured to control the flow of electricity to the heating element as a function of a temperature and at least one of a moisture level and a precipitation level.