Roof waterproof structure

The utility model discloses a roof waterproof structure which comprises a roof and a parapet wall, a plurality of rainwater hoppers are arranged at the junction of the roof and the parapet wall, a slope making layer is paved on the top of the roof and is a hydrophobic expanded perlite slope making layer, a leveling layer is paved on the top of the slope making layer, and a waterproof layer is paved on the top of the leveling layer. A waterproof layer is laid on the top of the leveling layer, the left side of the waterproof layer is attached to one side of the parapet wall and extends to an inner cavity of the flooding tank, the waterproof layer extends to an inner cavity of the roof drain at the junction of the roof and the parapet wall, and a heat preservation layer is laid on the top of the waterproof layer. By means of the waterproof layer, rainwater is prevented from seeping into the roof through the junction of the roof and the parapet wall, the waterproof layer extends to the rainwater hopper so that th