For roofs, the traditional, trapezoidal profiled steel sheet is often used - ranging from sheet with low profile height right up to deeper profiles with higher load-bearing capacities. Long-strip roofing, which is our speciality in the Nordic countries, demands extra-mild steel sheet known as PLX grade. Long-strip roofing is applied to insulated load-bearing roof structures, and the steel sheet carries no load. Roof tiles of prepainted steel sheet are a relatively new product, but their use is rapidly growing. Roof tiles are formed from prepainted steel sheet, and the resulting product has an attractive appearance and is beneficial from cost and quality aspects.
For wall claddings of for example industrial buildings profiled sheet is the mostly used product. Flat panels of prepainted steel sheet are used to an increasing extent on prestigious buildings, such as air terminals, offices and shopping centres.
The use of sandwich elements consisting of two sheets of steel with a core of insulating material between them is becoming increasingly common for producing entire walls, known as curtain walls. The whole wall is made up of such sandwich elements, which results in quick and cost-effective way of construction.
Gutters, downpipes, flashings and industrial doors are other major applications for prepainted steel sheet.
Prelaq is 100% recyclable.
1. Steel sheet
2. Metal coating
3. Passivating layer
5. Top coat
6. Removable protective film (if required)
7. Reverse side coating