HYRANGER TS is a glass-fibre reinforced SBS elastomeric modified bitumen waterproofing membrane. Minimum side lap width is 6cm shown by a white line. A second white line 16cm from the edge allows the material to be identified after installation. Used as a base or underlayer in a multi-layer roof waterproofing system. Can also be used as an air and vapour control layer (AVCL).