The superior corrosion resistance of MagnaFlow means it is an ideal choice for more demanding environments, such as roofs 100m from the coastline. The magnesium in the aluminium/zinc/magnesium alloy coating helps zinc flow over cut edges, sealing them and providing long term protection against corrosion. ‘Self healing’ - a proven innovation for over 16 yearsThe first signs of corrosion on any steel roof often appear where the roofing product has been penetrated by holes (to secure a satellite dish, for example) or at the cut edges necessary in any roof installation. Our unique alloy technology combines zinc and aluminium with magnesium. The magnesium enables the zinc to flow and self-heal the cut edges that would otherwise expose the steel substrate to atmospheric conditions, ensuring a much longer life for your roof at a modest additional cost.
