roll of Watertight Flashband Self-Adhesive Flashing Tape (10 metres), an aluminum-backed bitumen waterproofing tape used for instant sealing and roof leak repairs.waterproofing roofs, sealing gutters, and repairing flashing joints.Instant Seal: Bonds immediately to brick, metal, concrete, and roofing felt using basic hand pressure.Weather Resistance: Features a protective outer membrane designed to resist heat and UV exposure.Durability: Formulated to provide a watertight barrier lasting up to 15 years.