What is the difference between the coating on the metal tile. Which metal tile is better to buy - coated or uncoated? Options for choosing a metal tile

The metal tile is divided into classes depending on the type of polymer coating applied to it.

Aluzinc coating - the steel sheet is coated with aluminum and zinc, with the addition of silicon.

Coating "polyester"(glossy and matte) - the steel sheet is coated with a "polyester" coating, which is based on polyester paint. Brands in this class include:

• (VIKING MP®)
• (GRANITE® CLOUDY KLMA) - imitation of natural ceramic tiles

Coating "printech"- the steel sheet is coated with an Aluzinc-based coating and a Printech polyester coating. The surface of the metal sheet imitates the structure of natural materials:
printech under the tree
printech under the stone

Pural coating- the steel sheet is coated with a polymer coating "pural", based on polyurethane. This class includes analogues of the Finnish brand:

• (Colorcoat Prisma tm)

Plastisol coating- the steel sheet is coated with polyvinyl chloride and plasticizers. This class includes the new grade SOLANO ® 30 - with a thick organic coating 200 microns thick, and very high resistance to corrosion due to the use of the Galfan metal alloy (an improved combination of zinc and aluminum).

Coating PVDF (PVDF)- PVDF coating of polyvinyl fluoride and acrylic is applied to the steel sheet.

What metal tile to choose for the roof of the house?

To make the final choice of coating type, we present a table of physical characteristics of various classes of polymer coatings.

At the same time, it should be borne in mind: ordinary polyester is much cheaper than with a modified polyester coating of new brands. Pural and plastisol coatings are always more expensive than polyester, but they surpass it in terms of durability.

Based on the ratio "price - quality" and the operating conditions of the metal roof, you should select a brand in order to buy inexpensively, but for a long service life of the roof.

Comparative table of characteristics depending on the type of coating

All of the listed types of coatings are applied not only to tiles, but also to profiled sheets for roofing and fences (profiled sheeting is on sale).

Let us dwell in more detail on the most important characteristic of a profiled roof - the coating of a metal tile, which is responsible for the safety of its appearance and protection of the metal from corrosion and the influence of natural factors. The variety of protective polymers used in thin-sheet metal roofing (including corrugated board) comes down to the main five. We will consider them in this article and try to find out which roofing iron coating is better.

To begin with, we present the comparative characteristics of all types of polymer coatings:

Polyester (PE) coated metal tile

Due to its low cost, metal tiles with this type of coating have become the most common. Polyester (PE) or polyester is a glossy coating with an average thickness of 25 microns. The downside can be considered low resistance to mechanical stress, and therefore products called "polyester" require careful transportation and accuracy during installation. Due to its characteristics and low cost, PE metal tiles have proven themselves well in central Russia and the CIS countries.

Matte polyester (Matt PE, Purex)

Another kind of protective polymer "polyester" with the addition of Teflon, due to which the metal tile is given a noble matte shade and a slightly rough surface. Also, the advantage of such a coating is additional protection from exposure to ultraviolet rays, which improves the color stability of the roofing material. As a rule, the thickness of Matt PE is 35µm. The most famous representatives of matte polyester are Viking (Metal Profile) and Velur (Grand Line).

PVDF

It is usually used for finishing facades and is less often used for roofing materials. PVDF is a very resistant glossy coating to both color loss and mechanical damage. In this variant, high-quality steel with the first class of zinc content (275 g/m2) is usually used. PVDF is 80% polyvinyl fluoride and 20% acrylic. It is also produced by the Finnish metallurgical concern Ruukki in a matt finish (matt PVDF).

Polyurethane coating (Pural)

The highest quality and resistant in its properties protective polymer for metal tiles 50 microns thick. It is better known as "pural" (abbreviated as PU) thanks to the ancestor of this product - the Finnish plant Ruukki. The polyurethane type of coating is resistant to fading, environmental influences and temperature changes. At present, pural is produced by most metallurgical plants for the production of roofing metal materials. For example, Colorcoat (English development - Prisma, supplier - Metal Profile), Arcelor (Belgian coating Granite HDX, supplier - Grand Line), Finnish manufacturer Pelti ja Rauta (Prelaq Nova coating, supplier - Mir Roof).

Important: the polyurethane coating, with the maximum visual similarity to polyester, has a small rough surface, reminiscent of powder coating!

Like polyester, this type of protective layer of metal tiles has a matte finish, which makes it possible to achieve maximum similarity between the profiled steel material and ceramic roofing.

Plastisol (PVC)

The thickest, and, therefore, the most mechanically resistant top layer of the roof. Thickness - 200 microns. Abbreviated PVC, some manufacturers can be found under the brand name Solano or HPS200. The composition of the polymer includes plasticizers and polyvinyl chloride. The texture of the metal tile has a characteristic pattern resembling "skin".

With all its apparent advantages, "plastisol" is extremely unstable to temperature changes and exposure to ultraviolet rays. Therefore, it is not recommended to use metal tiles with this type of polymer in the southern regions. Typically used in industrial and manufacturing facilities.

These are the main types of protective coatings. Other names and variations are modifications of the above polymers.

For example, at the heart of the Belgian metal tile cloudy, imitating a natural roof, is a modified polyester. This creates a unique pattern, reminiscent of the firing of ceramics.

Similar to Cloudy, steel ECOSTEEL, which has the maximum resemblance to stone or wood, is also the result of polyester modification. Basically, this type of polymer is used in the manufacture of materials for the fence (profiled) or facade (metal siding).

Which coverage is best?

Based on the properties and characteristics of the protective polymers of metal tiles, the most reliable coatings can be distinguished. Polyurethane has both sufficient thickness and excellent UV resistance. Such a metal tile will serve for a long period of time in almost any region, and is rightfully considered the best. For the central or northern regions, plastisol is ideal. Due to the polymer thickness of 200 microns, the coating will withstand increased snow loads or ice. Other types of colored roofing layer are inferior to polyurethane and plastisol in their characteristics. It is not recommended to use a metal tile with a covering "polyester" in regions with an aggressive climate.

Manufacturers are constantly improving protective polymers for sheet products, offering new solutions that extend the service life of metal tiles, corrugated board and other steel products. We hope this article has been helpful in choosing the best iron roofing material.

The basis of this coating is polyester. The material has long been used in the production of metal tiles, has a glossy appearance and is characterized by plasticity and high color stability.

Metal roofing polyester shiny, smooth, relatively inexpensive. It is highly resistant to corrosion and UV rays, that is, it will not fade for a long time under the sun. However, in thin layers (up to 30 microns), it is damaged by light mechanical stress, for example, when snow layers leave the roof. Do not use polyester where weather conditions are unfavorable.

• Matte polyester (PEMA)

Among types of metal roofing matte polyester looks the most attractive. It is a polyester with Teflon added to give it a matte finish. In addition to resistance to UV rays, it also has increased resistance to mechanical damage due to the increased coating thickness (35 microns). Even in difficult weather conditions, it will last a long time.

• Pural (PU)

Pural coated metal tile It is based on polyurethane, the molecules of which are modified with polyamide. The thickness of the coating is 50 microns, which gives it additional mechanical stability. Ultraviolet light and even chemically aggressive substances, such as acids that precipitate in areas with polluted air, do not change the properties pural coated metal tiles. It serves for a long time without changing the color and mechanical resistance in any conditions.

The surface of such a metal tile is silky to the touch and matte in appearance. Due to the properties of the pural, the roof with such a coating is easy to handle and install. Temperatures at which it retains its properties - from minus 150 to plus 1200 degrees Celsius.

• Plastisol (PVC)

Plastisol 200 - metal roofing from polymer 200 microns thick. Differs in volumetric embossing, imitating leather or tree bark. It was developed specifically for difficult climatic conditions, including industrial areas with a high level of environmental pollution.

Plastisol 100 has half the thickness and is used mainly indoors. It is also produced with a coating on both sides and is used for the manufacture of weirs.

• Polydifluorite (PVDF, PVDF2)

Of all kinds metal roofing this is the most suitable for the design of facades. It consists of a mixture of polyvinyl fluoride and acrylic in a ratio of 4:1. Contains high quality pigments for high gloss and long lasting UV resistant color.

The polymer is quite hard, has hydrophobic properties, which allows it to “repel” dirt, while being quite plastic. It can be either matte or glossy. Metal roofing can be shiny like metal. To do this, it is varnished on top with the addition of a special dye. Resistant to weathering and corrosion.

Comparison of characteristics of metal tile coatings

We compare one model of metal tiles with different coatings

How to choose a metal tile with a glossy finish or matte finish? Very often our clients ask this question, both to themselves and to us. If you visit our products section, you will find a position in it - metal tile, and in it there are two subsections Monterrey polyester and Monterrey matte polyester. As you can see from the banner of these sections, matte metal tiles are more expensive than glossy ones, let's talk about the main differences between these materials.

Matte and standard (gloss) polyester

We would like to explain to you the main differences between the coatings in a simple language, but we cannot do without referring to the language of terminology and a certain abstruseness. So.

Coating standard polyester And matte polyester are produced on the basis of one technology - a coating based on polyester. That is, in general, one technology, but with certain features.

Standard polyester in the process of its production, it receives the following parameters - it withstands high air temperatures and steadily resists corrosion. Such material is durable and its service life is from 10 to 30 years. True, these figures are relevant under one condition that the zinc content of this metal is at a level of at least 200 g / m 2.

Matte polyester- everything seems to be the same as that of standard polyester, only the appearance is completely different. The matte polyester surface has microscopic irregularities and due to this the sunlight is reflected differently and the surface does not shine. Such a surface has the appearance of a more natural (natural) material. The matte coating itself has a thicker layer (35 microns), although the chemical composition itself is the same as that of standard polyester. If the main parameters of matte polyester have maximum performance - in terms of metal thickness and zinc content, then such a coating will last about 40 years.

As you can see, with the general technology based on polyester, the material has a different service life and, of course, has a difference in price.

Matte the material is more expensive with higher characteristics, this is understandable, because it is intended mainly for roofing.

Standard ( gloss) polyester, a material with lower technical parameters and, as a result, cheaper.

Based on these findings, a simple conclusion can be drawn - matte polyester is better than gloss. But such conclusions can be drawn in a simple world, and our world has changed, the main thing in it is marketing and the ability to sell, so everything has become a little more confusing and complicated.

The complexity of the situation is that the manufacturers of the material understand that the consumer wants a higher quality material, but at a lower price. And they have learned how to give it to the consumer, or rather create the illusion that they provide such material.

Therefore, matte polyester is available on the market in a thickness of 0.45 mm with a zinc content of 140 g/m 2 . Such material looks like a high-quality raw material, but it is not quite suitable for a durable roof - this is its minus. But on the other hand, in our country, where the construction of fences from corrugated board is developed, this is an ideal material for the construction of fences.

What coating to choose for a metal tile

If you choose a material for a metal tile for a residential building, then it is clear that its parameters should be to the maximum. But there is another important component - the price. And in this matter, everyone makes their own decision.

Matte material theoretically performs better, but market realities show that this is not always the case.

Gloss or standard polyester is more attractive in price, but if you find such a material in a thickness of 0.5 mm and with a zinc content of 225-275g / m 2, then you can say with confidence that it will not yield to matte polyester in any way.

So, which metal tile is better - matte or glossy, only a quality certificate for this material can say, the main thing is that it be genuine.

You, as a client who chooses metal tiles for roofing and who is serious about the quality of this coating, also have a good idea about the appearance of the roof, because the most important criterion when choosing a metal tile is that you should like it.

Metal tiles in black, a rarity on our roofs

Metal tile matte or glossy - which is better?

The metal tile enjoys wide popularity in the market of roofing materials. Its advantages include a solid appearance, a reasonable price-quality ratio. It looks equally good on modern buildings and on buildings of an old building. If you opted for a metal tile, you have to decide which of the varieties to choose - glossy or matte? Consider the difference between these two types of coverage.

Comparison of glossy and matte coatings of metal tiles

Both types of coatings are polyester produced using the same technology and have the same chemical composition. However, matte metal tiles are more expensive than glossy ones. What is the reason? Differences between matte and glossy metal tiles:

• The matte finish has textured surface irregularities. As a result, it reflects the sun's rays less and has no shine.
• The thickness of the rough coating is greater than that of the glossy coating and is 35 microns.

The cost of a metal tile is influenced not only by the coating, but also by the thickness of the steel sheet and the zinc protective layer. The larger they are, the more expensive the metal tile. Therefore, the quality of the roofing material will be best when combined with a rough coating with the maximum allowable thicknesses of the steel sheet and zinc layer. The cost of such a metal tile is also much higher.

At the same time, manufacturers produce matte metal tiles with a sheet thickness of 0.45 mm and a zinc content of less than 200 g per square meter. It looks expensive, but costs much less. Its service life is also less. Therefore, in order to choose a quality roofing material, you need to familiarize yourself with its technical characteristics indicated in the quality certificate. A metal tile with a glossy finish, but with a sheet thickness of more than 0.45 and a zinc content of more than 200 g per square meter, will not be inferior in quality to a rough one.

The choice of buyers is significantly influenced by the appearance of the roofing material. A house with a rough metal roof looks more solid and presentable. But not all buildings need it. Therefore, when choosing the type of metal tile, it is worth giving preference to quality and durability, as well as the best combination of technical characteristics and cost. After all, the roof should reliably protect the house from any bad weather.

Metal tile matte or glossy - which is better? MarkaMET, Production, corrugated board, metal tiles

Which metal tile is better - what to look for when choosing

Metal tile is a widely used roofing material, which is made of galvanized steel. It looks great externally and repeats the relief of ceramic tiles, however, it has a significantly lower weight, is able to withstand high mechanical loads and has high rates of moisture resistance.

All these qualities make metal tiles indispensable for use in the construction of private houses. This article will be devoted to which metal tile to choose, and what points to pay attention to when choosing a material in each case.

The structure of the metal sheet

The metal tile is ideal for the construction of private houses, country cottages and small townhouses. Due to its low cost, long service life and high technical characteristics, the material becomes preferable to slate, roofing material or ceramic tiles.

The metal tile sheet has the following structure:

• Made from high quality steel. The thickness of the steel reaches 0.45-0.9 mm. An indicator of 0.5-0.6 mm is enough to give the roofing material sufficient strength and bearing capacity.
• Zinc coating. This coating improves the anti-corrosion properties of the material. A zinc coating layer of 275 g/m 2 is considered normal.
• Primer mix. A primer on both sides of the sheet is necessary to improve adhesion with the polymer or paint applied after.
• decorative layer. On the front side, a decorative polymer layer is applied to the sheet. Any decorative coating enhances the protection of the sheet from water and mechanical stress, and also sets the material a certain color.
• Lacquer coating. A layer of varnish is applied to the back of the sheet, which will protect it from rusting.

What are the types of coverage

When deciding which metal tile is better, it should be borne in mind that its cost and technical characteristics, as a rule, will depend on the type of decorative layer. Once upon a time, paints were used to cover metal tiles, but due to their poor resistance to sunlight and temperature extremes, they were replaced by polymeric materials, which gave the material a longer service life.

The following types of polymers are used as a protective layer:

1. Polyester. Such a polymer has high protection against ultraviolet radiation, temperature differences, as well as good anti-corrosion qualities. You can get matte and glossy finishes suitable for use in regions with any climate.
2. Pural. The pural layer is distinguished by its high strength and long service life - by and large, due to the fact that cracks do not appear on the material during bending.
3. Plastisol. Materials coated with plastisol have a more pleasant appearance. A thick layer of plasticizer makes it possible to create embossing, improves stability and increases the life of the roof.
4. PVDF. Such a polymer gives the metal tile a metallic effect. The highest strength and resistance of the material to aggressive environments makes it possible to use it for industrial purposes.

If you have not yet decided which metal tile is better - matte or glossy, then keep in mind that, in any case, it is better if the material is polymer-coated. Such a metal tile costs a little more than the painted version, however, its technical characteristics are largely higher than those of cheaper counterparts.

What parameters affect quality - which one is better to choose

At the moment, in construction stores you can find a large number of different metal tiles, both in price and quality. To better understand which metal tile is best for your roof, study in detail all the technical and operational characteristics. They will tell you about the quality. Keep in mind that the most expensive product is not always the best quality. Consider also the rating of metal tile manufacturers.

In addition, you must take into account the following characteristics:

• Thickness. Quality products should have a thickness of more than 0.5 mm. Varieties of metal tiles with a greater thickness have enhanced strength, however, they have more weight. This parameter should be taken into account during the design of the roof truss system.
• Thickness of zinc coating. There are three categories of this indicator on the market: “economy”, “standard” and “premium”. A zinc coating thickness of 275 g/m 2 is considered sufficient. The higher this value, the longer such material will last, and the more expensive it is.
• Type of decorative layer. There are brands of metal tiles with paint and varnish and polymer coating. It can be both glossy and matte tiles. The painted version will cost less, but will not last as long as the polymer-coated material.
• Does the material have a certificate of conformity. The manufacturer must present the entire list of necessary documents indicating the quality of the metal tile. Otherwise, it is better not to trust such a manufacturer.

It is worth noting that the best proof of the quality of the material is its appearance. Before buying, be sure to visually check the metal tile. It should not have chips, scratches and uneven edges, which are very likely to cause early damage to the roof.

Glossy or matte - which metal tile is better

What is the first thing people notice when they drive past a house? To the roof! If it is well-groomed, modern, without black streaks and cracks, passers-by will immediately understand that this cottage belongs to economic and knowledgeable people.

Metal tile - roof decoration

The construction industry offers a huge selection of roofing materials, but if you have a pitched roof, then the best option, both in terms of quality and price, is a metal tile. It has a quite decent appearance, its service life is tens of years, good manufacturers and serious sellers give a guarantee of 7-15 years (subject to the installation requirements).

In Belarus, Grand Line metal tiles, which are produced at the Russian Metalist plant, are in great demand. Its advantages:

• affordable cost;
• an extensive selection of collections of various shades and with different profile patterns;
• use of high-quality hot-dip galvanized sheet steel;
• the use of polymer coatings that do not fade under the influence of solar radiation.

The Grand Line metal tile in Minsk is delivered directly from the manufacturer, so its prices are below the average market.

Glossy metal tile

Several layers of coatings are applied to the profiled sheet to improve the anti-corrosion properties. Gloss glows brightly in the sun, respectively, your home will stand out. Even if you look at satellite images on Google maps, houses with glossy roofs glisten in the sun.

Glossy polyester paint is not only a whim, it reflects a large percentage of thermal energy, so that the roof does not overheat on hot days. The only negative is that any damage will be noticeable.

Matte tiles

The difference is that polyester paint with metal shavings is used for painting. The roof will not shine so noticeably under the sun's rays, but the shavings will give the coating additional strength and durability.

Another big plus of matte metal tiles is color fastness to fading. If we talk about prices, they are about the same. The choice is entirely up to the owners of the house. When ordering roofing, pay attention to the following facts:

• steel thickness - not less than 0.5 mm;
• preferably a well-known brand: Metalprofile, Grand Line, Prushinski, Ruukki, etc .;
• durable polyester coating.

glossy or matte