Novel building engineering waterproof board

The utility model discloses a novel building engineering waterproof board, including guiding device and watertight fittings, watertight fittings installs in the bottom plate, and the bottom plate is the multilayer compoboard, and the guiding device is seted up on the surface, and the guiding device is constituteed by leading to groove, chamfered groove and guiding gutter, lead to the groove and bethe rectangle structure, set up the central authorities at floor surfaces, the chamfered groove is the arc structure, sets up four apex angles at floor surfaces, and the guiding gutter is circle below shape, sets up at floor surfaces's upper and lower both ends, and each groove face -to -face mounting reduces the arresting barrier of water velocity, and watertight fittings comprises water seepagelayer, one -level water -stop sheet, second grade water -stop sheet and fixed plate, and water seepage layer is outmost, inscription one -level water -stop sheet, the waterproof packing of the insideinterpolation of one -leve