Anti-seepage structure for flat roof in severe cold area

The invention relates to an anti-seepage structure for a flat roof in a severe cold area. The problem that an existing flat roof in the severe cold area is prone to leakage is mainly solved. The invention is characterized in that the upper part of the roof panel (1) is a roof slope making layer (2), the upper part of the roof slope making layer (2) is a vapor barrier layer (3), the upper part of the vapor barrier layer (3) is provided with a thermal insulation layer (4), exhaust holes are arranged in the thermal insulation layer (4), the upper part of the thermal insulation layer (4) is a cement mortar slope making layer (5), the upper part of the cement mortar slope making layer (5) is sequentially provided with a waterproof layer (6) and an isolation layer, and the upper part of the isolation layer is a cement mortar protection layer (7); a water drain pipe (9) is arranged at the bottom of the parapet water collecting dustpan, the lowest position of the water drain pipe (9) is aligned ...