The roof anti -icing system can consist of resistive, self -regulating cables or their combinations. The advantages of resistive cables are that they are cheaper than others. But the disadvantages are the high cost of installation, since various designs are of different lengths, while the length of the cable is determined in advance. Also, the conditions for installing such a cable may differ. One part of the cable can be under the snow, the second in the air. And the heat transfer goes throughout the cable is the same. Accordingly, this type of heating will not be effective. The advantages of self -regulating cables are less electricity consumption and they are not prone to overheating, unlike resistive cables.
