Cover plate for roof deformation joint cover plate assembly

The utility model relates to the technical field of building construction, in particular to a cover plate for assembling a roof deformation joint cover plate, which comprises an umbrella supporting plate which is arranged at a mounting abutted seam of the roof deformation joint cover plate and is matched with the abutted seam in length, an umbrella panel is obliquely and downwards arranged on the top edge of the umbrella supporting plate, and a water chute is arranged on the bottom edge of the umbrella supporting plate. The umbrella panel is located above the roof deformation joint cover plate, the water guide groove is located below the roof deformation joint cover plate, and the distance between the bottom edge of the umbrella panel and the top edge of the water guide groove is matched with the thickness of the roof deformation joint cover plate. The seam covering plate at the seam of the cover plate is designed according to the umbrella-shaped structure water guiding principle, rainwater at the seam of the