QingShan SBS modified asphalt is a kind of windable sheet waterproof material, which adopts styrene-butadiene-styrene (SBS) modified asphalt as a dipping and covering modifier, whose upper surface is coated by PE film, fine sand, mineral granules or aluminum foil, copper foils or other isolating materials. It could be widely used in all kinds of waterproof engineering projects in all fields, especially in the following types of engineering projects: 1.All kinds of building roofs engineering projects, exposed, non-exposed, heat preservation, non-heat preservation, planting building roofs and roof parking lots; 2.All kinds of underground waterproof or dampproof engineering projects; 3.Bridge surfaces of subways, tunnels, concrete roads, sewage treatment and garbage burying projects 4.water spraying pools, swimming pools, penstocks, water pools, and so on.