TECA FLEX is a lead free flashing which can be used in areas where traditional lead flashing would be used such as chimney and abutment flashings, around rooflights and pitched valley linings. TECA FLEX can also be used to form a damp proof course and cavity trays in masonry walls. TECA FLEX is made from a modified polyethylene compound with an integral aluminium mesh reinforcement, enabling the product to be worked and formed in the same way as lead. The product is faced with a fine black or grey mineral.