Klober Wakaflex® lead-free flashing is available in a range of colours and ideal for all forms of roofing abutment work. BBA-certified, it has similar malleability and flexibility to lead but can also be stretched by up to 50% in length and 15% in width. This makes it ideal for complex detailing, shaping around deeply profiled tiles and sealing flue penetrations, all without the need to use a specialist roofer. Wakaflex has a high-strength, self-adhesive Butylon® backing which provides immediate weatherproofing and on laps, it welds to the facing to create a virtually unbreakable bond. Unlike lead it has no susceptibility to thermal movement and so can be laid in long tray lengths without fixing clips.