DEWATERING SHEET FOR BUILDING

摘要

PROBLEM TO BE SOLVED: To provide a light-weight dewatering sheet for building which has a satisfactory tensile strength and is superior in waterproofness and nail-hole sealing performance while hardly generating curl on a cut end when cutting.SOLUTION: As a result of intensive study of the problem, there is provided a dewatering sheet which has a lamination structure vertically symmetrical relative to the center of the layers of the dewatering sheet in a thickness direction, thereby hardly generating curl.