WATERPROOF SHEET

PURPOSE:To provide a waterproof sheet constituted so that water penetrating from the flaw part of a waterproof layer is absorbed and held by a nonwoven fabric using a water absorbable fiber to block the pentration of water into a building and the nonwoven fabric and an asphalt layer are strongly int...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEKIHARA KATSUAKI, SOUDAI JIYUNKICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING FIXED CONSTRUCTIONS GUTTERS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a waterproof sheet constituted so that water penetrating from the flaw part of a waterproof layer is absorbed and held by a nonwoven fabric using a water absorbable fiber to block the pentration of water into a building and the nonwoven fabric and an asphalt layer are strongly integrated without being peeled to prevent a leak of water. CONSTITUTION:A bulky nonwoven fabric using a water absorbable fiber having a two-layered structure wherein a surface layer having water absorbing swellability is provided to the outside of a core layer composed of an acrylic resin fiber is bonded to the single surface of an asphalt layer by infiltrating asphalt into the nonwoven fabric up to the thickness of 10-30% thereof.