In architectural applications, stainless steel is often used because of its attractive appearance. Facades, interior cladding, lifts and escalators, handrails
and parapets are some of the most typical areas of stainless steel use.
Terne, an alloy of zinc (50%) and tin (50%), is used to coat steel to inhibit corrosion. Terne coated stainless steel (TCS) is commonly
used to replace terne metal roofs and over time dulls down to the
colour of lead.
For the owner of a building, the advantages of stainless steel roofs are mainly related to three aspects: maximum life expectation, minimum maintenance,
and low weight.