... 4)Adhesion realible 5)ISO certification Polymer Modified Asphalt root-resistant Waterproof Material Product Features1,It hasdual function of ... waterproofing andpreventing the penetration of root. 2,It is made ofimported chemical root resistance agent, which has the function ... layer on the node with hot-melt construction. Then root-resistance construction, hot-melt construction, which is similar to ...