GOST: metal tile

According to GOST standards, metal tile is a contemporary roofing material that is well-known for its toughness and visual appeal. Metal tiles are made to look like traditional clay or concrete tiles, but they have a lot going for them in terms of longevity and upkeep. Usually made of aluminum or galvanized steel, its composition ensures resistance to weathering and corrosion.

GOST standards, designed especially for metal tile, impose strict requirements on both its performance and production. By adhering to these standards, tile is guaranteed to meet certain quality standards, such as resistance to wind, rain, and snow loads. Metal tile roofs that comply with GOST are guaranteed to endure severe weather conditions and offer dependable defense for many years.

According to GOST regulations, metal tile’s flexibility in terms of color and design is one of its main advantages. With so many profiles and finishes available from manufacturers, homeowners can select a style that blends in with the architectural features of their home. Because of its versatility and the durability guaranteed by GOST standards, metal tile is a preferred material for both residential and commercial construction.

Installing metal tile in accordance with GOST guidelines places a strong emphasis on using the right methods to maximize longevity and performance. Contractors follow these guidelines to guarantee that every tile is firmly fixed and positioned correctly, reducing the possibility of leaks and future structural problems. Following GOST guidelines improves the roof’s longevity and adds to its general dependability and safety.

Standard Number GOST 9867-88
Title Metal Tile for Roofs. Specifications

Brief history of the creation of GOST

The standard was created very difficult and under strong pressure. The manufacturers were quite satisfied with the existing mess and the ability to cover it with technical conditions, this allowed them to legally produce and sell low -quality products, inventing their characteristics for it. The situation was especially complicated after 2008. Then a large number of artisanal enterprises appeared on the market that began to stamp outright marriage, and it was impossible to punish them by law – every small cooperative created its own and adjusted the metal tile for them. It was in those days that a coating with a metal sheet thickness appeared less than 0.45 mm, a low amount of zinc and low -quality finish polymer paints.

Poor-quality metal tiles rapidly lose their appealing appearance.

The most conscientious businesses formed the National Union and worked with the Federal Agency for Metrology to create and approve GOST R 58153-2018, the standard for metal tiles. This document is advisory in nature this year and will only become mandatory on March 1, 2019.

Prices for various types of flexible tiles from popular manufacturers

Flexible tiles

How world standards differ from domestic

As you are already aware, industry representatives participated in the development of the standard, and they consistently violate consumer rights to further their own interests. Prolonged and intense disagreements resulted in the companies wanting to maintain the minimum thickness at 0.45 mm, but the state was able to raise it to 0.5 mm. Furthermore, protective coatings from polymer paints are not taken into account when measuring the thickness of the metal; however, it is unknown how the consumer can control this parameter. Such a thickness is widely used in developed nations and does not raise any concerns from manufacturers.

The typical design of premium metal tiles

The mass of the zinc coating raises another important question. Producers demanded that local developers offer metal tiles with a zinc content of about 140 g/m2. Laboratory tests indicate that such a zinc layer can offer five years of anti-corrosion protection; however, consumers on a tight budget are likely to purchase such a low-quality coating. For overall development, you should be aware that Finland requires 275 g/m2 of zinc as a minimum installation. Therefore, it is the state, not dishonest production companies, that defends consumer rights. It is now evident why some of our roofs may last up to ten years while theirs have calmly cost at least thirty.

The stronger and more resilient the material, the thicker each layer of coating

How the standard classifies metal tiles

Metal tile is a steel profiled sheet with two layers of polymeric and zinc coating that is obtained on gypical units. Products are categorized by this standard based on these indications.

    The starting raw materials. For metal tiles, thin-leaf galvanized steel is used, technical data meet the provisions of GOST R 58153-2018. Zinc coating can be applied with a hot method (GOST R 52246-2016) or electrolytic method.

Roofing is manufactured using galvanized steel sheets.

In addition to its aesthetic purposes, the polymer coating shields the material from corrosion, UV rays, and other harmful effects.

In addition to color, coatings vary in the profile’s shape.

Regulatory requirements for metal tiles

This is a crucial part of the standard; every batch of goods must have a quality certificate, and the manufacturer must be inspected.

Requirements for raw materials

Cold-rolled galvanized steel that has been left unfinished and coated with a polymer finish is the production material. The standard permits the use of steel produced abroad, but only if the steel meets GOST R 52246 and GOST 34180 in terms of technical specifications. Chemically sustainable steels and anti-corrosion coatings must adhere to GOST R 52246, though interested parties may agree to a minor modification.

What makes galvanized steel used in metal tiles

The thickness of polymer paints is not taken into consideration in the steel thickness with zinc of ≥ 0.5 mm. It is advised to use 180 g of zinc per square meter, with 140 g being the minimum. Thickness of polymer paint plus primer: ≥ 23 ± 2 μm.

Anti -corrosion coatings requirements

Zinc coatings’ physical properties are described in GOST R 52246 positions, and the polymer complies with GOST 34180. There may be minor risks, scuffs, and roller roll residue on the paint’s surface, but only in certain circumstances. First off, these flaws shouldn’t compromise the coating’s integrity. Second, from a meter away, they ought to be undetectable.

Permissible coating flaws in accordance with GOST

The quality requirements for polymer coatings on sheets from the reverse side can be greatly reduced with the parties’ consent. Deep risks, passes, shagren, and so forth are permitted. D.

Requirements for size

All of the profile’s and the sheet’s overall primary linear dimensions are governed by the standard. In addition, it defines the profile’s depth and step, explains control techniques, and sets limiting tolerances. There are no set linear dimensions that are generally accepted; instead, manufacturers are free to install them however their customers desire.

Depending on the kind of metal tile, the profile’s linear measurements may change.

Only sheets’ essential parameters are subject to strict regulation.

    Sickness. This is a deviation of the longitudinal edges of the sheets from a straight line. Non -parallel bending of two edges cannot exceed 2 mm per linear meter or 9 mm over the entire length of the sheet.

The sheet’s illness

Cosin cutting a metal object

"Metal tiles are unique among roofing materials because of their strength, style, and adaptability. Under the Russian GOST regulations, metal tiles provide a dependable option for a variety of climates and architectural designs. The strength, weather resistance, and simplicity of installation of GOST-certified metal tiles are highlighted in this article’s exploration of their salient characteristics. Whether you’re thinking about building from scratch or renovating your roof, knowing GOST standards will help you select a metal tile that will not only improve the look of your home but also last over time."

How to accept metal tiles is performed

Responsible manufacturers’ representatives with specialized technical training inspect the products. Parties accept the tiles, and the buyer and manufacturer can further coordinate the size. One sheet is selected from each section of the party; the mass of a single batch cannot exceed three tons. A second check is performed if at least one indicator does not match the standard’s requirements. The second check’s unsatisfactory findings serve as justification for granting complete control over every product unit.

The thickness of the leaf is one of the primary parameters.

Marking

Manufacturers are now required by state standards to mark the thickness, chemical designation of anti-corrosion metal, weight of each sheet in square meters, paint brand, thickness, and color marking in accordance with international classification on each sheet of metal. The manufacturer’s name has to be specified before the marking. Zn 275 re 23 RAL 6005 Greencoat 0.5 mm is an example of a properly marked product.

Metal tile sheets need to be labeled.

Types of profiles

Metal tiles come in a variety of shapes and sizes depending on the manufacturer. This gives developers the option to select the ideal roof option for any building.

Table: Metal tile types

Traditional sea wave from Monterere

Only the design indicators of metal tiles are impacted by a particular type of profile; their operational and physical characteristics are independent of them.

The top producers of metal tiles

Tips for buying

It is best to visit the store with a skilled roofer who can tell, with his hands, the difference between a real and a fake metal tile. The master gained practical experience with a variety of polymer finish coatings without the need for specialized equipment. He can check the strength and thickness of anti-corrosion coatings in such an easy way by gently scratching the sheet.

The selection of metal tiles needs to be done carefully.

Suitable behavior in a store?

  1. Ask the seller for a warranty card, it must be executed in accordance with the requirements of domestic regulatory acts indicating the manufacturer, composition and guarantee obligations.
  2. Call the manufacturer indicated in the talon number, make sure that such a company exists.
  3. Indicate the batch number of the goods you purchased and receive confirmation that these products were really produced by the specified manufacturer.

A warranty card must be provided by the seller and properly filled out.

Purchasing metal tiles should only be done from reputable merchants with a solid track record.

Metal tile packaging and shipping

GOST-regulated metal tile is a strong and adaptable roofing option for contemporary building requirements. Metal tiles are made to resemble conventional clay or concrete tiles, but they are much more resilient to weather. Compared to traditional materials, their lightweight nature makes installation simpler, and their sturdy design guarantees longevity in a variety of climates.

GOST-mandated metal tile’s ability to adapt to various architectural styles is one of its main benefits. Metal tiles allow for aesthetic customization in both residential and commercial projects because they are available in a range of profiles, colors, and finishes. In addition to adding to a building’s aesthetic appeal, this adaptability strengthens its structural integrity by offering dependable defense against environmental factors like rain, snow, and UV rays.

Moreover, GOST compliance guarantees that metal tiles fulfill strict quality standards. Aspects like material composition, dimensional accuracy, and performance under load and environmental stress are all covered by these standards. Manufacturers ensure that their products meet the highest industry standards by abiding by these regulations, giving consumers peace of mind about the dependability and longevity of their roofing investment.

In summary, metal tile roofing—as specified by GOST standards—stands out as a sensible and dependable option for contemporary building projects. For architects, builders, and homeowners wishing to combine functionality with long-lasting visual appeal, it is the go-to choice due to its unique combination of durability, aesthetic appeal, and adherence to strict quality standards.

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Gleb Zuev

Exterior designer, author of books about roofing materials. I will help you make your roof not only reliable, but also beautiful.

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