System 20 DUO

System 20 DUO is a membrane made from distilled bitumen, with differentiated waterproofing masses offering very high performance. The upper face is based on distilled bitumen and elasto-plastomeric polymers (APP type) with the lower face comprising distilled bitumen and elastomeric polymers (SBS type). Reinforced with a woven non-woven single strand composite polyester, the membrane has high mechanical characteristics, excellent dimensional stability, and a self-protected upper face which reduces heat absorption and improves durability.