The application discloses an exposed type SBS waterproof roll material without protective layer, and belongs to the technical field of waterproof roll materials, which comprises, from bottom to top, a lower isolation film, a lower SBS modified
asphalt layer, a base layer, an upper SBS modified
asphalt layer and a wear-resistant layer. The base layer is made of high-density needle-punched
polyester felt, the upper surface of the base layer is provided with a plurality of uniformly distributed expansion lock nodes, the expansion lock nodes extend through the upper SBS modified
asphalt layer and are combined into the wear-resistant layer, the lower surface is provided with combined convex points extending into the lower SBS modified asphalt layer, and a
metal corrugated
kinetic energy dissipation layer corresponding to the expansion lock nodes is embedded in the wear-resistant layer. The special expansion lock node structure is used for realizing mechanical anchoring and locking between the base layer and the wear-resistant layer, the
metal corrugated
kinetic energy dissipation layer is used for dispersing and dissipating external force, the protective layer is not needed to be additionally arranged, the exposed use can be directly realized, the interlayer anti-peeling performance, the
impact resistance and the
aging resistance and durability of the roll material are effectively improved, and the long-term stability and effectiveness of the building waterproof
system are ensured.