| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite sheet for building manufactured by integrally binding an asphalt sheet which have been conventionally used as a building material and a synthetic resin sheet into a composite. SOLUTION: The composite sheet is manufactured by integrally binding an asphalt sheet 1 which contains an asphalt felt layer obtained by impregnating a base paper with a straight asphalt and another material layer other than the asphalt felt layer and a synthetic resin sheet 2 which is arranged on the under face side of the asphalt sheet 1 and has a paper sheet integrally bound at least on its under face, by utilizing the thermal fusibility of the synthetic resin sheet 2. COPYRIGHT: (C)2007,JPO&INPIT
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