Thermal insulation waterproof structure for constructional engineering

The utility model discloses a heat-preservation and waterproof structure for constructional engineering, and relates to the technical field of heat-preservation and waterproof structures. The photovoltaic module comprises a photovoltaic panel assembly, a waterproof assembly and a heat preservation assembly arranged below the photovoltaic panel assembly. The bottom of the photovoltaic panel assembly is connected with the waterproof assembly. The waterproof assembly comprises a drainage channel, a first baffle and a second baffle, one side face of the drainage channel is fixedly connected with a photovoltaic panel assembly, the first baffle is fixedly connected to the inner wall of the side, close to the photovoltaic panel assembly, of the drainage channel, the second baffle is fixedly connected to the inner wall of the other side, away from the photovoltaic panel assembly, of the drainage channel, and the first baffle is located above the second baffle. The heat-preservation assembly comprises a base layer, a