ROLLED ROOFING MATERIAL Russian patent published in 2000 - IPC

FIELD: construction engineering. SUBSTANCE: flexible rolled material is used for waterproofing of roofs in dwelling and industrial buildings. Rolled roofing material has layer of copper foil with thickness of 0.035-0.05 mm. Located under it is layer of chlorosulphurized polyethylene with thickness of 0.01-0.5 mm, and arranged under it is layer is mineral fabric base impregnated in chlorosulphurized polyethylene with thickness of 0.085-1.25 mm. Material can contain additional layer of chlorosulphurized polyethylene with addition of copper corrosion inhibitor such as benzotriazole or 2-mercaptobenzothiazole with thickness of 0.01-0.05 mm which is located above layer of copper foil. Aforesaid rolled roofing material is specified by higher flexibility, strength, long service life, no emission of harmful toxic products, resistance to spreading flame. Specific mass of material is 1-0.1 kg/sq.m. EFFECT: higher efficiency. 1 cl, 1 dwg, 1 tbl