Silicone Waterproof Coating Used for Steel and Concrete Roof US$1.00 / kg Non Curing Liquid Rubber Modified Bitumen Waterproof Coating for Roofing US$500.00-2,000.00 / Ton Flashband Self Adhesive Roofing Waterproof Bitumen Flashing Tape US$1.20-9.69 / Square Meter Water...