A home is considered to be the most sacred place for any individual. That’s why we are so emotionally attached to it. We put a lot of effort into building our homes. We make sure that everything is handpicked and beautifully curated so that a house finally gets a soul to be transformed into a lovely home. Colour coated sheets have always been a popular choice for home roofs.
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Everything matches so perfectly that it makes the whole view simply mesmerizing. The curtains match perfectly with the wallpaper, the wallpaper synchronizes perfectly with the dressing table, and the sofa set goes perfectly with the curtains. Everything looks picture-perfect except for one thing, i.e., the roof. We all must have noticed the fact that when it comes to roofs of your homes, they are generally boring, dull, and grey.
Colour Coated Sheets are not only in homes but other structures such as commercial buildings, warehouses, office premises, or Gyms; are almost the same and boring as far as roofs are concerned.
But hey! You can decorate your roof and customize it accordingly to make it more appealing and beautiful. In this era, the manufacturers are producing goods keeping in mind the demand of customers. Now, you have an advantage that the previous generation hasn’t. No matter if it is your home, your office, your warehouse, or your fitness center, in today’s scenario, you can decorate the roof of your building and style it with color-coated roofing sheets.
But how and where you can buy these and what are the colour coated roof sheet price? In this blog, you will know a step-by-step buying guide, and you will get answers to all your queries, so here we go!
Color coated sheets undergo a chemical process to acquire diverse colors, ensuring prolonged retention of both color and shine. These roofing sheets represent a significant advancement in the construction and building sector, finding extensive use in industrial roofing and cladding, as well as applications in cold insulation, warehouses, airports, atriums within malls, showrooms, false ceilings, and lighting fixtures. The color coated steel sheets are available in a diverse array of colors and finishes, encompassing matte, glossy, and metallic options.
In , the global market for color-coated roofing sheets reached a valuation of roughly USD 23,184 Million, and projections indicate an anticipated increase to approximately USD 29,505 Million by . This growth is expected to occur at a compound annual growth rate (CAGR) of around 4.10% throughout the forecast period. The accompanying report thoroughly examines the factors influencing the color coated steel market, including drivers, restraints/challenges, and their impact on demand throughout the forecasted timeframe.
The first step you need to know in order to buy colour coated profile sheets is the knowledge of the various forms of roofing sheets. They are commonly available in three different forms – corrugated, troughed, and tiled. These sheets usually come along with compatible washers with self-drilling and self-tapping screws. As far as the variety is concerned, they can be metallic and non-metallic.
Metal Roofing sheets are mostly galvanized having colour coated sheets on both surfaces. Hot-dipped galvanized steel is usually the base material and the steel can either be cold-rolled or hot-rolled. These sheets are coated with metal alloys like Aluminum, Zinc, Copper, and Tin. Further, both sides of the sheets are treated exclusively with pigmented coats.
There are commonly three paints that are used for coloring these sheets and they are – Poly Vinylidene Flouride (PVDF), Silicone Modified Polyesters (SMP), and Regular Modified Polyesters (RMP). Apart from residential, industrial, and commercial buildings, the application of these roofing sheets can also be done in resorts, hotels, farmhouses, sports complexes, and so on.
As far as durability is concerned, these sheets can withstand high winds hail, snow, torrential rains, and fire. They generally don’t rot, break, crack, or split easily. These metal roofing panels are also resistant to attacks by insects and pests.
Cost: The cost of metal roofing sheets in India varies between 250 per square meter and 350 per square meter.
In this non-metallic category, polycarbonate roofing sheets are a good example which is often UV coated on both surfaces. These non-metallic thermoplastic colour coated sheets are considered better than fiberglass as they are multiple times stronger than ordinary glass. When we talk about features, apart from being transparent, they are also lightweight and thus easy to install. The structures where these coloured polycarbonate sheets are used are namely industrial skylights, greenhouses, multiplexes, shopping centers, patios, courtyards, etc. for providing daylight solutions apart from adding to their aesthetics.
Cost: When we talk about the cost element, the price of polycarbonate roofing sheets varies between the ranges of Rs. 800 per square meter to Rs. per square meter in India.
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These sheets are not very popular for roofing material in most places in the country. This is due to the durability factor as they are primarily used as garden sheds or for covering structures that are temporary. The price of the plastic sheet is directly proportional to the quality of the plastic. Therefore, the overall installation cost increases depending on the quality of the plastic.
Cost: The prices of plastic roofing sheets in India generally vary between the range of Rs. 500 per square meter to Rs. per square meter.
Corrugated roofing sheets feature repetitive folds on their surface and they are mostly used in Agricultural Buildings. Their unique shape makes them more reliable and strong. It is due to their corrugated design with ridges and grooves. The special corrugated shape of these sheets is an advantage that lightweight metals like aluminum can also be equipped with them to safeguard the structure from different forms of weather. Due to the increasing pollution level, there has to be maintenance every 5 to 10 years. Their durability and eco-friendliness make them an ideal choice when it comes to protecting garages, porches, and sheds.
Cost: The price range of regular corrugated sheets in India is generally between Rs. 250 per square meter to Rs. 500 per square meter.
In contemporary construction practices, aluminum sheets are gaining extensive popularity as a replacement for traditional metal sheets due to their lightweight nature, prolonged durability, and considerable scrap value post-use. Additionally, they are readily available in a variety of color coatings. The longevity of aluminum sheets further contributes to their appeal in diverse applications.
Aluminum roofing sheets boast a non-combustible and non-flammable nature. Their robustness, coupled with an impressive energy absorption capacity, grants them superior resistance to dents compared to alternative roofing materials. This quality not only enhances safety against fires but also safeguards against potential damage from falling objects.
Cost: The pricing of aluminum sheets is considered on factors such as size and thickness. For instance, a 0.063-inch thick sheet measuring 4×8 comes in at approximately ₹200 per square foot, whereas a 0.125-inch thick sheet of the same size is priced around ₹300 per square foot.
A range of insulation sheets is readily available, catering to various needs. Options include PUF-insulated, Rockwool-Glass wool-insulated, EPS-insulated, and other panels known for their energy efficiency and durability. These insulated Roofing sheets find applicability across diverse scenarios, showcasing resilience against high wind velocities and substantial snowfall or rainfall. Notably, they can endure extreme temperatures spanning from -50 degrees Celsius to +50 degrees Celsius. The thermal conductivity of PUF, measuring at 0.018 kCal, effectively prevents the transfer of heat between the interior space and the external environment.
Cost: The price range of regular insulated roofing sheets in India is generally between Rs. 350 per square meter to Rs. 550 per square meter.
When in the process of purchasing colour coated sheets, it’s crucial to consider various factors to ensure the acquisition of a high-quality product tailored to your specific needs. Here are key aspects to take into account:
Consider the intended use of the color-coated roofing sheets, whether for roofing, wall cladding, or applications such as refrigerators or car bodies. Different purposes necessitate varying coatings, colors, thicknesses, and finishes. For instance, roofing benefits from light-colored aluminum sheets that assist in temperature regulation during hot weather, while dark-colored sheets may absorb more heat, contributing to a warmer environment.
Different types of coatings, such as polyester, PVDF, and SMP, are employed in colour coated sheets. Each coating exhibits distinct properties and performance characteristics, making it essential to select the most suitable one for your specific application. For example, PPGI finds use in construction for manufacturing roofing sheets, roofing tiles, walls, doors, windows, partitions, panels, louvers, slotted angles, and valley gutters.
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Consider the thickness of the sheet, recognizing that thicker sheets generally offer increased durability and better insulation. However, thicker sheets may also entail higher costs. Applications like the production of refrigerators and washing machines often utilize thick color-coated sheets, providing a scratch-resistant finish capable of withstanding daily wear and tear.
The color and finish of the sheet significantly impact the aesthetic appeal of the building or product. Choose colors and finishes that complement the design and style of your structure or item. Color coated profile sheets contribute to the aesthetic appeal of residential buildings, offering not only functionality during renovations but also pleasing aesthetics.
Prioritize sheets known for their durability and longevity to ensure the sustained vibrancy and attractiveness of the color and finish over time. This minimizes the need for frequent maintenance or replacement. Colour coated roof sheets, renowned for high corrosion resistance, find ideal use in various settings, including storage tanks, pipes, and equipment. Their notable attributes include high formability, corrosion resistance, and an appealing finish capable of withstanding challenging conditions.
The widespread adoption of colour coated roofing sheets is attributed to their versatility and enduring qualities. These sheets offer a multitude of advantages over alternative roofing materials, making them the ideal selection for diverse construction projects. At Neo Thermal Insulation, we proudly provide top-tier colour coated sheets available in a variety of colors and designs, ensuring high quality for your construction needs.
The Color Coated Roofing Sheets stand out in the construction sector for its distinctive qualities. Crafted from high-quality steel and adorned with a colored layer, this roofing material is renowned for its durability, lightweight nature, and impressive weather-resistant properties.
Choosing a light-colored aluminum roofing sheet is the best option for roofing that proves effective in sunlight reflection, aiding in maintaining a cooler temperature within your establishment during hot weather.
Color-coated roofing sheets are becoming increasingly favored for their thermal insulation attributes and attractive appearance in both urban and rural settings. These sheets not only shield roofs from external damage but also enhance their visual appeal.
The dimensions of color-coated sheets include a Total Coating Thickness (TCT) ranging from 0.4 to 1.0 millimeters. The width is standardized at millimeters (1.06 meters), while the standard length is available in options of 8, 10, 12, 14, and 16 feet. Customization is possible, extending up to 30 feet as per specific requirements.
ASTM Standards – The American Society for Testing and Materials is an independent standards organization that regularly publishes testing and performance specifications for a wide variety of industrial products.
Backers – Backers provide the underside of painted metal used in metal roofs and walls with base color, some protection, and a substrate (basis) for adhesives. A backer is typically white or neutral color.
Bonderized – Bonderized refers to the thin layer of Zinc Phosphate on the surface of the sheet that is a weldable product and provides a surface to which paint will readily adhere. This is typically used in rainwater goods such as gutters and flashings for metal roofs.
Camber -The curving or deviation of sheet metal from a straight, vertical plane. Also related to sweep, the curving or deviation of sheet metal from a straight, horizontal plane
Capillary Action – The movement of water through microscopic pores or channels within metal. As water molecules are ‘sticky’ they can flow through narrow spaces often against external forces such as gravity. Usually created when an exposed end of bundled painted steel is in proximity to water due to improper storage, leading to water travelling through the metal, resulting in wet stack corrosion.
Chalking – Chalking is the degradation of the resin system at the surface of the finish on a metal roof or wall, due predominantly to prolonged UV ray exposure. As the resin breaks down, resin particles along with embedded pigment particles lose adhesion and take on a white appearance.
Clear Coat – A clear coat is an optional layer for metal roofs and metal walls applied over the paint top coat designed to add perceived depth to the surface, enhance gloss, or provide an additional layer of protection for extreme environments such as coastal or industrial environments.
Concealed Fastener Roofing – See Standing Seam
Cool Colors – Cool colors refer to a coating for metal roofs which utilize infrared (IR) reflective pigments that have been altered chemically and physically to reflect IR wavelengths while still absorbing the same visible light. Reflecting infrared light reduces the heat buildup in structures, thus reducing building cooling costs.
Corrugated – Corrugated is a common type of metal roof or wall panel design, which incorporates ribs of equal or similar size and shape to create aesthetically pleasing shapes and shadow lines.
Cut-To-Length – Cut-to-length is a manufacturing process in which metal products, typically metal coil, are cut to the exact specifications of an end-user or manufacturer for use in metal roof and wall products.
Delamination – Delamination is the loss of paint film adhesion to the substrate or between the primer and the topcoat. It can be visually apparent in several forms including bubbling, peeling, checking, chipping, cracking, or complete loss of the top coat on a metal roof.
Directional Paint System – Due to the unique shape of the pigments in the paint, common to metallic paints, a directional paint system catches light in a specific way that can vary between batches and orientation. This guidance is given for certain colors to avoid mixing orientation or batches to provide a clean uniform look once installed on a metal roof or wall.
Dissimilar Metals – Refers to metals that are in different positions on the galvanic scale relative to one another. Two dissimilar metals in proximity to one another in a conducive environment can lead to galvanic corrosion, in which one metal corrodes preferentially (and sometimes rapidly) compared to the other metal. This is due to the ‘flow’ of current from one metal to another.
Edge Corrosion (field cutting induced) – Corrosion at the exposed, thin, unpainted end of a metal panel. Often created due to field cutting of panels by heat generating devise such as a grinding disk or sawzal (compared to a manufacturers shear or shearing action used on a jobsite to cut material) which leads to an inconsistent, exposed edge which can trap water and spread corrosion more rapidly.
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Edge Wave (slitter or roll former induced) – The visible, unintentional waviness, or buckling at the edge of a metal strip due to the forces imparted on the panel during the production or forming process. Often due to improper production or quality control processes.
Electrolysis – Electrolytic Corrosion created by two or more dissimilar metals in contact with each other and an electrolyte containing small amounts of acid. A common example is moisture in a coastal environment. This leads to galvanic corrosion in which one metal will corrode preferentially to the other.
Embossing – Embossing is the process of creating a raised texture to the surface of the metal. Undertaken in a continuous process for metal applications such as metal walls.
Emissivity – Emissivity is the amount of heat a surface can dissipate away from itself. This is expressed as a percentage between 0-100%. Used in the calculation of the Solar Reflectance Index for metal roofs.
Exposed Fastener or Lap Seam Panels – Exposed Fastener or Lap Seam Panels are metal roof and wall panels which are lapped with one over the other, with the fastener then attached from the outside and driven directly through the metal.
Fading – Fading occurs to metal roof and metal wall products when UV rays and substances in the environment attack the pigments in the paint and cause their color to change. Color change is typically assessed based on its variance to the base state when new, represented by Delta E (dE or ΔE).
Film Thickness – Film thickness or dry film thickness (DFT) refers to the thickness of paint film on the strip surface, once the paint has cured. Typical dry film thicknesses for painted steel for metal roof and metal products range from 0.″ (0.5 mil) to 0.″ (1.5 mil).
Flexographic Roll Printing – Flexographic roll printing is the process Steelscape employs to impart its distinctive colors and designs, such as rustic and aged metallics onto metal for metal roof and wall products.
Galvalume® – See ZINCALUME®
Galvanic (bi-metal) Corrosion – The preferential corrosion of one metal over another, created when two dissimilar metals are in contact with one another in a conducive environment (presence of moisture with acid). Heightened by how dissimilar the metals are on the galvanic scale and how conducive the environment is (e.g. more prominent on the coast than in the desert).
Galvanizing – Galvanizing is the process of coating a thin layer of zinc to steel to improve corrosion resistance. Referred to by Steelscape as TruZinc. For most metal roof and metal wall products that use galvanizing this is applied before the paint layer.
Gauge – Gauge refers to the thickness of metal. A smaller gauge correlates to a thicker metal. For example, 22ga is thicker metal than 29ga. 22ga-29ga are also the most common gauges for metal roof and metal wall building applications. Sometimes spelled as gage.
Gloss and Sheen – Gloss and sheen are two terms used to describe how well a surface reflects visible light. Gloss is measured at a 60° angle from the surface, while sheen is measured at 85°.
Graffiti Resistance – Graffiti resistance, for Steelscape applications, refers to a painted metal wall surface in which aerosol or marker-based graffiti can be removed from the surface.
Inert Catchment – When acidic rainwater, created by certain environmental conditions, creates corrosion in areas downstream of the water catchment surface such as gutters and downpipes. Avoided by ensuring the correct material is selected relative to its environment.
Pressure Mottling – Uneven or irregular gloss visible on painted steel ( often in a splotchy or speckled pattern) due to variation in the pressure applied to the painted surface of the metal when it is stored in coil format. Typically a temporary condition that will dissipate with time.
LEED – Leadership in Energy and Environmental Design (LEED), is a green building rating system developed based on a pre-developed framework for healthy, efficient and environmentally sustainable structures.
Light Reflectance Value (LRV) – Light Reflectance Value measures the amount of visible or usable light that reflects from a surface. LRV is expressed as a percentage from 0 to 100; the higher the number the more visible light that is reflected. Used for both metal roofs and metal walls.
Mechanical Seam – Mechanical seam refers to metal roof products where the seams are mechanically attached together by ‘rolling over’ one seam with another by hand using special tools or with a mechanical seamer. This offers superior weather tightness and product performance in extreme environments.
Metallic Coating – Metallic coating refers to the process of applying additional metal elements, typically Zinc (galvanizing) or Aluminum and Zinc (ZINCALUME® or Galvalume®) to steel to improve corrosion performance of metal roofs and walls.
Mica – Mica is a specially formulated pigment that is added to paint for metal roofs and metal walls to create a sparkling or light-catching effect. This creates the effect of metal flakes in paint but with higher durability.
Oil Canning – Oil canning is a visual phenomenon seen as waviness or distortions in the flat surfaces of metal roofing and metal siding products. This effect is created by a range of different factors including stresses in the base material, improper fastener pressure, misaligned panels, and thermal expansion.
Pre-painted Metal – Pre-painted metal is the continuous process of coating steel rolls, called coils, with paint (also called coil coating). This type of metal is used in metal roofs and walls. The paint that is applied to the metal before it is formed into a finished product by a product manufacturer is called pre-painted metal.
Paint – Paint refers to the film applied to a surface to achieve a desired aesthetic and to protect the material underneath. Metal roof and wall paints typically consists of resins, solvents and pigments. Pigments add color, resins are the binder and add physical and chemical attributes, and solvents dissolve this combination into a liquid form.
Paint System – The paint system consists of a combination of the different painted layers, namely the pretreatment, primer and top coat to create a total finish solution. Paint systems can be modified to achieve different aesthetic or performance characteristics.
Polyester Paint – Polyester Paint is the most economical metal roof paint system and offers the lowest level of UV resistance when compared to SMP (Silicon Modified Polyester) and PVDF (Polyvinylidene fluoride) systems. Versatile and easy to form, their paint structure can be modified to suit a wide range of performance qualities and their flexibility means they can be offered in a variety of color and gloss options.
Pre-treatment – Pre-treatment refers to a coating process applied before painting in which the surface of the metal is cleaned to improve paint adhesion attributes to improve the longevity of painted metal roof and wall products.
PVDF (Polyvinylidene fluoride also known as Fluorocarbon or Kynar 500® and Hylar ®) – Polyvinylidene fluoride (PVDF) is the highest performing of the three common metal paint systems. It offers exceptional chemical, chalk, and fade resistance and can resist degradation when exposed to aggressive weather elements such as urban grime, air pollutants, salt, high temperatures and humidity. PVDF can be used on a wide range of preformed shapes, which is why they are often used for high-end architectural and high-profile commercial metal roof and wall projects.
Primers – Primers refers to a coating that prepares the substrate for painting by providing ‘bite’ for adhesion and directly supports topcoat color and flexibility. Primers also provide corrosion resistance for metal roof and wall products.
Reverse Impact Test – A reverse impact test is a stress test that is performed to determine if any paint adhesion is lost through a direct impact from the underside of the material. Like the T bend test, this simulates final forming into the finished metal roof and wall product.
Roll Forming – Roll forming is the process used to manufacture the majority of metal roof and wall products. A continuous production process where material is fed through a series of progressive rollers to form it into a finished state. Enables the end panels to be manufactured to desired end user’s length.
Self-Healing Properties – In metallic coatings such as ZINCALUME or galvalume, the galvanic action causes the zinc compounds to automatically build up at cut edges and scratches by an electrolytic reaction when water or moisture is present, slowing the rate of corrosion. This effect is sometimes referred to as “self-healing”. These properties are more pronounced on a factory cut edge with a shea, in which it is smooth and consistent as it essentially folds the Zincalume coating over the exposed raw edge of the base steel. Field cutting (provided its done in a shearing action) can have the same results as a factory cut edge.
Silicon Modified Polyester (SMP) – Silicon Modified Polyester is a paint system with a different resin structure to improve their UV resistance qualities compared to traditional polyester systems. SMPs offer a greater resistance to chalk and fade compared to traditional polyester systems and commonly used in residential metal roof applications.
Slitting – Slitting is a manufacturing process in which the width of a metal coil is trimmed to a desired size, or in which one metal coil is slit to form multiple narrower coils for use in metal roof and wall products.
Snap Seam or Snap Lock Roofing – Snap Seam or Snap Lock Roofing is a type of standing seam metal roof profile which typically have a nailing flange to affix the profile to the roof deck and the seams snap together to form the interlock.
Solar Reflectance (SR) – Solar Reflectance refers to the amount of solar radiation reflected off a metal roof or wall surface. This is expressed as a percentage between 0-100%.
Solar Reflectance Index (SRI) – Solar Reflectance Index is the most common index used to measure the reflectivity effectiveness of a color for a metal roof or wall. The consolidated value calculated from solar reflectance and emissivity with factors such as air flow considered. The higher the value the greater the reflectance. This is expressed as a range so that a standard black surface has an initial SRI of 0, where as a standard white surface has an initial SRI of 100.
Spangle – Spangle is a term to describe the distinctive finished appearance of unpainted ZINCALUME® steel as commonly used in metal roofs and walls.
Stamped Metal Tile, Shake, or Shingles – Stamped Metal Tile, Shake, or Shingles refers to the modular metal roof products manufactured using a stamping process to take on shapes of traditional roofing materials.
Standing Seam Roofing – Standing seam roofing is a common metal roof type for both residential and commercial applications. The seam, is the vertical rib which interlocks between each profile and is raised from the flat base pan of the panel. The fasteners that attach these panels to the structure underneath are covered in the installation process, which is why these profiles are also called concealed fastener roofing profiles. Standing seam reflects one continuous piece from ridge to eave and are available in a variety of widths from 12” up to 20” and beyond.
Striation – Striations refers to the small ridges formed in flat areas of metal surfaces used to reduce the visual impact of oil caning in metal roof and wall products.
Swarf – Swarf refers to the small metallic filings created when metal roofing or siding products are pierced or cut with friction saws, abrasive discs, or drills. If these tiny particles are left on a metal surface, they can corrode and cause rust stains.
T Bend Test – The T Bend Test simulates forming of metal into metal roof and wall products and assesses the flexibility of painted metal. During this test, a bend is formed in the test sample and inspected for any cracking.
Tension Leveling – Tension leveling is an in-line process on both Steelscape metallic coating lines and the Kalama Pickle Line, which induces tension into the strip in excess of the yield strength. Tension leveling results in a flatter product with improved properties for subsequent forming into metal roof and wall products.
Toll Forming – Toll forming is the process of coating or painting metal in which the base metal is provided or owned by the end user.
Top Coat – The top coat refers to the top painted layer of metal which provides metal roofs and wall with the visual color, offers protection from the outside elements, in addition to durability, and weatherability.
TruZinc® – TruZinc® is the terminology used to refer to Steelscape’s computer controlled galvanizing process for metal roof and wall products
Wet Stack Corrosion – The creation of corrosion or blistering to the surface of metal when stored in stacks and bundles. Due to trapped water between metal sheets, the capillary action of water through metal ends or other exposure to moisture due to the improper storage of the metal.
White Rust – The presence of a white, chalky substance on the surface of bare galvanized products. Typically occurs when new galvanized products are exposed to moisture or condensation before the zinc coating has stabilized.
Yield Strength – Yield strength represents the stress at which materials transition from elastic to plastic deformation. Once a material has been loaded past its yield point, it is permanently deformed making it unsuitable for use in metal roof and wall products.
ZINCALUME® (Galvalume®) – ZINCALUME® refers to a metallic coating consisting of 55% Aluminum and 44% Zinc to offer superior corrosion resistance. Coatings using the aluminum-zinc alloy offer a number of advantages to zinc alone. Aluminum is inert and provides a protective rather than sacrificial barrier compared to zinc. This combination is the common industry standard used for metal roof and wall products.
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