SOPRASUN PLUS 3 is a plastomeric modified bitumen waterproofing membrane (APP), manufactured by impregnation of the reinforcement with the waterproofing compound based on distilled bitumen modified with polyolefin polymers, which gives to the compound excellent technical characteristics. Soprasun PLUS 3 is an ideal base layer for Sopragum Garden PLUS 4 and Soprasun 4 Plus Mineral systems.