India is corrosion prone

India is one of the fastest growing economies with greater attendant emissions
India’s carbon emission per year – 2.35 billion tonnes (2020)
India contributed 7% of all global emissions (2020)
Surrounded by sea on three sides, sea breeze has high salinity with moisture content
The tropical climate with good sunshine and rainfall every year

India is corrosion prone and so are metal roofing sheets

An European study states that the life time of a galvanized steel sheet* is 8 years under Indian climate conditions.
The increasing pollutions levels and bad climatic conditions can decrease their life further.
Metal roofing sheets corrode hence less durable leading to periodical maintenance and high replacement costs.
Industrial units with high humidity content and chemical fumes emission in their manufacturing process are prone to faster corrosion. Fertilizers, Chemicals, Petroleum, Food, Paper and Pulp, Textiles and Pharma.

Greencor is corrosion-proof

Made of cement and PVA fiber, Greencor does not corrode. On the contrary it strengthens over time and becomes more durable.
They have a long life of upto 40 years and are trouble-free and maintenance-free.


Corrosion category Example of typical corrosion environments
C1 Very low Heated buildings with clean atmospheres, e.g. offices, shops, schools, hotels.
C2 Low Unheated buildings where condensation may occur, e.g. depots, sports halls. Atmospheres with low level of pollution. Mostly rural areas.
C3 Middle Production rooms with high humidity and some air pollution e.g. food-processing plants, laundries, breweries and dairies.
Urban and industrial atmospheres, moderate sulfur dioxide pollution. Coastal areas with low salinity.
C4 High Chemical plant, swimming pools, coastal ship and boatyards. Industrial areas and coastal areas with moderate salinity.
C5 (I+M) Very high Buildings or areas with almost permanent condensation and with high pollution Coastal and offshore areas with high salinity.

The life in years for galvanized coatings used in corrosion categories C1 -C5.

Coating thicknesses according to
EN ISO 1461
Life time of zinc coating in different corrosion categories (in years)
Steel thickness mm Local coating thickness (mean thickness) μm C1 C2 C3 C4 C5
Steel < 1,5 mm 35(45) 100+ 50-100+ 17-50 8-17 4-8
Category C4 & C5 is relevant to Indian environment conditions


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