Waterproof roofing structure of compound coiled material of polyolefin

The utility model discloses a waterproof roofing structure of compound coiled material of polyolefin, it has set gradually heat preservation and the compound coiled material waterproof layer of polyolefin in roofing basic unit, it has the sloping layer of looking for of the slope still to be equipped with the suitable rainwater of getting rid of in the basic unit, the heat preservation tiling is on looking for the slope layer, and it has the screed-coat still to be under construction on the heat preservation, the compound coiled material waterproof layer of polyolefin passes through the tie coat is under construction on the screed-coat, and wherein the tie coat is the plain thick liquid of polymer cement of 1.3 millimeters thickness, it has the protective layer of 3 millimeters thickness still to be under construction on the compound coiled material waterproof layer of polyolefin, and the protective layer is the plain thick liquid of polymer cement of glass fibre web check cloth reinforcing. The utility model discloses having and looking for the slope layer to suit to get rid of the rainwater, the roofing is ponding not, nail hole infiltration after the nail corrosion is avoided in the waterproof layer construction that bonds, the coiled material surface sheath of seting up defences is difficult to destroy when the roof has other usage.