Benefits of using colour coated sheets for your roof

Why should we use roofing sheets for our roof?

Roofing is a significant component in the construction industry world over. Of late, there has been a shift towards the importance of aesthetics. From wallpaper to contemporary architecture, building construction goes beyond just practicality and functionality. One aspect that is gaining steady popularity is decorative, colour-coated roofing sheets. While we see them mostly in urban and industrialised areas, these sheets can be used not just for large industrial and commercial buildings, but residential buildings primarily for aesthetic reasons and but also as an alternative to the conventional galvanised iron sheets.

Until the mid-19th century, wood, slate and clay tiles were predominantly used as roofing materials. The last century saw asphalt, asbestos and fibre-cement replacing traditional materials. But now thanks to newer, more sophisticated technology, roofing sheets are made from a variety of metals like aluminium, copper, zinc and tin. A long period of market experimentation also saw roofing sheets develop through various levels of durability and fire-resistance. They are also available in different shapes, sizes and gauges to suit every customer’s needs.

The thickness of the colours coated on these sheets varies according to the requirement. Read on to know more about the benefits of using our colour coated sheets.

                                                   Colour Coated Roofing Sheet


The most colour coated sheet is made of Aluminium and it is one of the lightest available commercial metals with a density only a third of steel or copper. Since most colour-coated sheets are made of aluminium, they are both lightweight but have a strong and sturdy structure versus other roofing sheet materials.

Fire resistant

As most colour coated sheets are made of aluminium, they are non-combustible and have a Class-A fire rating. This makes them safe to use for homes, gardens, warehouses, factories, etc.


When exposed to air, aluminium sheets develop a thin layer of aluminium oxide. This makes them resistant to corrosion and rusting. So you can be sure your colour coated roofs won’t fade when exposed to rain, heavy winds or bright sunlight. Colour coated sheets are coated with different colours via a chemical process. This ensures they retain they’re colour and shine for a long time.

Highly durable

A corrugated aluminium roofing sheet is highly durable. They have a high tensile strength at low temperatures, are thermal-friendly and retain their toughness through all kinds of weather. These sheets can also bear heavy loads without getting damaged. Because they last longer than traditional steel roofing sheets, you save money in the long run.

Easy to install

As colour coated sheets are lightweight, they are extremely easy to install. Unlike other sheets, they don’t bend and don’t exert pressure on roofs.


Only three to five per cent of the original energy used to produce the colour coated sheets is needed for recycling. Aluminium also has a very low melting point, so recycling them becomes easy.

Energy reflective and safe

Colour coated sheets today have a galvalume coating, which is an aluminium-zinc alloy. These sheets combine the strength of steel with the anti-corrosive property of aluminium and the durability of zinc. As a result, these colour coated sheets are an effective energy-saving solution as they reflect heat and thus cut back on your cooling costs. You can also be assured that your roof will not catch fire in the event of a lightning strike, nor will the colour crack or peel when subjected to the elements.

Aesthetically appealing

The final and most obvious benefit is that colour coated sheets dramatically increase the aesthetic value of every building as they come in a variety of colours, shapes, sizes and thickness. This makes them suitable for hotels, resorts, airport hangers, restaurants, offices, decorative walling purposes, etc.

We at Ispat Enterprises Pvt. Ltd offers high-quality colour coated sheets in a number of colours and designs. Visit us today for the best roofing solutions for your home or company.

Colour Coated Roofing Sheets V/S Asbestos Sheets:

Colour Coated Roofing Sheets can be a substitute to Asbestos Sheets:

Colour Coated Roofing Sheets are Aluminium- Zinc sheets have a colour coated over the metal surface of these sheets. More detailed information about Colour Coated Roofing Sheets.

Asbestos Sheet also is known as Asbestos Cement Sheet or fibro cement sheet is a building material with numerous roles in construction. These sheets are durable and easy to work with.

Advantages of using Colour Coated Roofing Sheets:

Roofing sheets play a very important role in construction sites.

Advantages of Asbestos:

  • Highly fire resistant.
  • Durable and weathered proof.
  • It is inexpensive and is much affordable.

Which one is a better option :

As stated above all the advantages of both the products it can evident that colour coated roofing sheets are superior to that of asbestos. Both the products are highly fire-resistant, durability and weatherproof in this point colour coated sheet hold a plus point if compared. Colour coated roofing sheets did not break easily even in extreme weather conditions but the risk remains with asbestos, they are prone to break easily. 

The main disadvantage of using asbestos is they lead to many health diseases such as cancer but Colour Coated Roofing Sheets are recyclable and are eco-friendly.

On the other hand, Colour Coated Roofing Sheets are costlier than asbestos, but then also Colour Coated Roofing is considered as a one-time investment with no or negligible repair charges. The Colour Coated Roofing is showing a steep increase in its demand because of its eco-friendly and for it’s more reliable performance.

Colour coated roofing sheets                                        Asbestos

Ispat Gold as a producer of Building Materials :

Ispat Gold leading producer of many various building materials. With customisation facilities available continues to impress customers with its quality and prices which are reasonable and affordable. If you are looking for building products then click here.

We are sure to find for all our customers new and helpful measures to understand the demands of its customers and supply accordingly. Ispat gold acts sole and wholly for the purpose of customer satisfaction and making a purchase for its customers easy and comfortable.

What are Colour Coated Roofing Sheets ?

An illustration showing a few RAL 5005 colour code roofing sheets.

What are Colour Coated Roofing Sheets ?

 Colour Coated Roofing Sheets are Aluminium – Zinc Sheets (Galvalume) which have a colour coating over the metal surface of these sheets. These sheets are available in different colours as desired by the customers. The primary objective of these are protection, safety and security of the products or goods stored inside a building. Due to advancement in technology now colour coated sheets are available for the consumers to use at warehouses, godowns and sheds.

How are Colour Coated roofing sheets better than Asbestos roofing Sheets ?

Colour Coated roofing sheets Vs. Asbestos roofing sheets.

Colour Coated roofing sheets are well known not only for it’s alluring look but also for various other reasons. Following are some advantages of using Colour Coated Roofing Sheets Vs. Asbestos Roofing Sheets.

  • High durability versus Asbestos roofing sheets. Asbestos roofing sheets break without much efforts
  • Corrosion-protective – Corrosion is the process of converting refined metal into chemically stable form which leads to gradual destruction of materials
  • Low thermal heat conductivity – These Roofing Sheets ensure heat transfers occur at a lower rate in materials of lower thermal conductivity and that’s why verifying a cooler environment inside the building premises as compared to Asbestos roofing sheets.
  • Customisation available – Customers have the option of choosing among various colours shapes sizes and textures according to their convenience. After manufacturing of the products they are carried at the desired places wherever they are required
  • Weather Flexibility – During climatic catastrophe also these sheets maintain it’s brawny, sturdy and durable nature so doesn’t tear apart easily
  • Incombustible – As the roofing sheets are made up of primarily with zinc, aluminium, alloy and of tensile steel they do not catch fire easily therefore making it safer to be installed in warehouses, godowns or houses where lots of essentials and people are present
  • Flimsy in weight – It can be transported easily because of it’s lightweight. Asbestos are heavier as compared to it’s counterparts
  • Ventilation is available
  • Recyclable sheets  – Aluminium has a low melting point thus becoming easy to recycle. Asbestos is not an environmentally sustainable product. They have lots of health risks involved as well

Product Specifications

The Colour Coated roofing Sheets having increased in the number of demands due it’s various benefits after installation also for its eco friendly characteristics thereby will be reducing the usage of harmful products and provides much safer investment in terms of durability or for the ease of using the product which is customer oriented.

Pre-Painted Alu-Zinc Steel Sheets (Galvalume): (55% Aluminium, 43% Zinc, 1.5% Silicon) Aluminium – Zinc Alloy coating gives corrosion resistance and superior heat reflectivity, Galvalume Steel reflects a high percentage of heat and can withstand in any weather conditions, without surface discoloration. It is also suited for coastal areas. Bare Galvalume coating is inorganic and does not contain volatile compounds that can harm the environment.

Total Coated Thickness (mm) varies alot based on the individual demand and preference for the same. The usually available thickness are as follows – 0.35mm, 0.4mm, 0.45mm, 0.47mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 1.0mm, 1.40mm

Width usually varies from 1000mm to 1250mm

Standard Length (Feet): 8, 10, 12, 14, 16 (Customizable upto 30 Feet).

Material structure of colour coated roofing sheets
Material structure of colour coated roofing sheets

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Which is the best brand of colour coated roofing sheets in India ?

JSW Everglow & Colouron

JSW Steel Ltd. is India’s largest producer of colour coated sheets.

JSW colour coated sheets are sold under the brand name of JSW everglow and JSW Colouron.

Advantages –

-It comes with a superior quality galvalume coating

-They provide a 10 year warranty and it is ISI approved
– It’s AZ-150 Aluminium-Zinc coating offers superior corrosion-resistance and weather resistance

Disadvantages –

– Very Expensive when bought in very small quantities. JSW colour coated sheet price is somewhere around Rs. 334/ square meter (JSW Colouron 0.5mm thickness with an yield strength of 550 MPa)

Tata Bluescope Sheet

The legendary steel king of India Tata Steel group has a separate vertical namely Tata Bluescope which purely focuses on producing colour coated roofing sheets. It markets it’s roofing sheets under the brand name DURASHINE®.

Advantages –

– Tata’s DURASHINE® carries more load. For example – A 0.45 mm DURASHINE® 0.45mm TCT (550MPa) has better load carrying capacity than Ordinary Color Coated 0.60mm (250MPa) sheet*
– It has a unique anti – leak groove
– DURASHINE® sheets require less number of purlins and reduce cost of supporting structure.
2 to 4 times more life and better corrosion resistance.

Disadvantages –

– No warranty claim as compared to JSW Everglow’s 10 year warranty.
– The most expensive roofing sheet in the India market i.e. a Tata Bluescope Roofing Sheet, 0.30 To 1.40 Mm per square meter would cost somewhere around Rs 470/Square Meter.

Ispat Gold Colour Coated Roofing Sheets

Ispat Gold is an underdog and a new player in the colour coated roofing sheets market  leading producer of the product Colour Coated Roofing Sheets and have been impressing customers for their various products manufactured by them. If you are thinking where to buy colour coated sheets in Kolkata or anywhere else in West Bengal, then click here and contact us.

We mainly produce RAL 5005 AZ55 coated with a thickness of 0.4mm with a load carrying capacity of 260mPa.

Advantages –

– Industry Best Prices – Ispat Gold produces RAL 5005 signal blue colour coated roofing sheets which is the most in demand colour. Bulk production of the same helps us provide the goods at competitive prices. Click here to know all the exciting offers currently going on our colour coated sheets.

– Industry Best Customer Service – We provide better after sales service as we have a small but strong and loyal customer base. This allows us to better serve our customers as compared to the bigger competitors or steel conglomerates like TATA Bluescope and JSW Everglow who have a wider customer base which takes them longer to solve customer complaints and problems.

We are literally just a phone call away! We escalate all important issues and complaints to the senior management immediately, skipping all the complex steps involved in solving an issue like in those of a MNC or a large corporation.