SHEET WATERPROOF STRUCTURE HAVING FIREPROOFNESS

摘要

PROBLEM TO BE SOLVED: To provide a sheet waterproof structure inhibiting the combustion of a waterproof sheet without flame-proof finishing waterproof sheet itself. SOLUTION: The sheet waterproof structure has a heat-insulating layer 12 formed on a roof backing 11, a fire-extinguishing layer 20 formed on the layer 12 and a waterproof layer 13 formed on the layer 20 and composed of a waterproof sheet 13a. The fire-extinguishing layer 20 is constituted of a fire- extinguishing sheet member 20a in which a fire-extinguishing resin composition 22 is laminated on a base sheet 21. The composition 22 uses aluminum hydroxide as a main component, and is composed by blending red phosphorus, phosphoric ester, poly(ammonium phosphate) and a resin binder. COPYRIGHT: (C)2004,JPO