Tactile paving (Blister and Corduroy) are used to convey information to visually impaired pedestrians about their environment. Manufactured in accordance with DD CEN/TS 15209:2008, and colour coded to meet the products applications, Roadstone’s Hazard Warning Flags combine functionality with design. This information provided is intended for guidance only. To ensure that the correct Hazard Warning product and procedures are used refer to DD CEN/TS 15209:2008. Roadstone also supplies a range of Jointing Sand, Jointing Compounds and Laying Course