By the complexity of operation, you can divide all roofs into 3 types. «Cold» roofs are well -isolated and have low thermal conductivity. For them you can use the lowest systems. The «warm» roofs are located above the empty attics and require an anti -icing system of a more complex design. “Hot” roofs arise over residential or on technical needs by attic premises. They require a laborious selection and installation of heating systems. The complexity and price of the cable heating system is determined individually after the project.