SBS (styrene-butadiene-styrene) modified elastomeric bitumen membrane with non-woven polyester, both sides are coated with polyethilene film (POLYZOL 20 PF) or the lower side is coated with polyethilene film and the upper side is coated with mineral granules (POLYZOL 20 PM). If there is a mineral granules surface it is covered with a uniform layer of natural mineral slates or coloured mineral granules. There is a longitudinal strip without mineral granules on one side for sheets to overlap the rolls.
This type of waterproofing material is characterized by high elasticity and flexibility at low temperatures compared with other types of bitumen membranes. Their very good flexibility at minus temperatures allow easy application.
The elastic properties of the membrane at very low temperatures guarantee high-quality waterproofing.