DUAL COMPOSITE AND COMPLEX NON-EXPOSED WATERPROOF SHEET COMPRISING ASPHALT POLYURETHAN WATERPROOF STUFF AND PROTECTION SEAT MADE BY COMPOSITE RESIN, AND CONSTRUCTION METHOD THEREOF

摘要

The present invention relates to a dual-composition/non-exposure waterproof structure and a construction method thereof and, more specifically, to a dual-composition/non-exposure waterproof structure which has a mixed resin protection sheet that a mixture of polypropylene, polyethylene, and ethyl vinyl acetate is extruded and formed on the upper part of a waterproof coating material which is an asphalt and urethane mixture.