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GI Sheet vs Aluminium Sheet – What’s the Difference

GI Sheet vs Aluminium Sheet

When it comes to roofing, there are a variety of materials available for home and business owners. Two popular choices are GI sheets (Galvanised Iron) and aluminium sheets. Both have their own strengths, making them suitable for different types of projects. Let’s take a look at the differences between these two materials.

Difference Between GI Sheets and Aluminium Sheets

Gi sheets are composed of steel that is coated with layers of zinc oxide in order to prevent corrosion. They come in various thicknesses, making them suitable for almost any type of job. Gi sheets are also relatively inexpensive compared to other metal roofing materials, making them a popular choice for budget-conscious homeowners and businesses alike. On the downside, they can be quite heavy and require regular maintenance in order to keep rust from forming on the surface.

Aluminium sheets are lightweight but still very strong, making them an ideal choice for large-scale roofing projects such as commercial buildings or warehouses. Unlike Gi sheets, aluminium is resistant to rust so you don’t need to worry about corrosion or regular maintenance. However, they tend to be more expensive than Gi sheets due to their durability and strength.

Durability & Lifespan

Gi sheets can last up to 30 years if they are properly maintained and installed correctly. However, they will need to be replaced more often due to rust damage if not cared for properly. Aluminium sheet roofs can last up to 50 years before needing replacement which makes them an attractive option for those looking for a long-term solution with minimal maintenance requirements.


In conclusion, both Gi sheets and aluminium sheets have their advantages when it comes to roofing projects but it all depends on your needs and budget as well as the environment you live in and how much exposure your roof gets from rain or sunlight. If you’re looking for a cost effective solution that requires minimal upkeep then Gi sheet could be the right material for you whereas if you’re looking for something longer lasting then aluminium sheet might be better suited for your project. Whatever material you choose make sure that you get professional help during installation in order ensure that your new roof is installed correctly and safely!

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