The invention discloses an anti-
icing rainwater
pipe system suitable for northern flat roofs and a working method, which belong to the technical field of
construction engineering. It includes a combined
eaves ditch, a water inlet protective cap, a water inlet, a composite rainwater
pipe, a
solar power panel, a heating cable, a
thermal insulation reflective layer, a bean stone concrete, a rainwater
pipe pipe clip, a building main body and a cable. The upper part of the gutter is provided with a concave opening, the upper surface of the concave opening is pasted with a
thermal insulation reflection layer, a heating cable is laid above the
thermal insulation reflection layer, and the outer side of the heating cable is backfilled with bean stone concrete; The upper part is provided with a protective cap for the water inlet, and the lower part is installed in the composite rainwater pipe; the buried depth of the composite rainwater pipe outlet is greater than the corresponding elevation of the maximum frozen
soil depth. The structure is simple, and the gutter and rainwater pipes can be prevented from freezing, and the service durability is significantly improved.