The duration of a metal roof is contingent on its ability to resist corrosion.
The action of aggressive chemicals, especially if combined with high relative humidity, may induce a rapid decay of the normal metal roofs, especially in the presence of sharp edges, holes, scratches and cuts.
The Ondulit protected system steel is incorporated into a series of layers that make it virtually impervious to the attack by corrosive substances and this provides superior performances and reliability over the time even under the most severe corrosive atmospheres (marine, industrial, urban).
The specific characteristics of any individual component of the protected system, perfectly integrated with each other, determine an overall protection of the sheet, virtually unlimited in the time under severe environmental conditions.
