Inverted roof drainage structure
The utility model discloses an inverted roof drainage structure which comprises a roof structure formed by a top surface structure layer and side walls, a parapet wall is constructed on the top surface structure layer and located on the edge of the top surface structure layer, a vertically-arranged...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses an inverted roof drainage structure which comprises a roof structure formed by a top surface structure layer and side walls, a parapet wall is constructed on the top surface structure layer and located on the edge of the top surface structure layer, a vertically-arranged sewer pipe is pre-buried in the top surface structure layer, and a piece of water-permeable cloth covers a pipe opening of the upper end of the sewer pipe. An annular supporting gravel pile and a permeable gravel pile inside the annular supporting gravel pile are piled on the upper surface of the permeable cloth, a foam concrete sloping layer, a mortar leveling layer, a waterproof layer, a heat preservation layer and a rigid layer are sequentially constructed on the top face of the top face structure layer, and the top faces of the foam concrete sloping layer, the mortar leveling layer, the waterproof layer, the heat preservation layer and the rigid layer are slopes inclining towards one side of the parapet. A wate |
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