A metal tile may be the best coating for building or renovating a home. Consumers are attracted by the beautiful appearance, ease of installation and care.
What is a metal tile
This is the material for the roof, the manufacture of which uses sheet steel with a polymer coating. Instead of steel, copper or aluminum can be used. They are not as strong as steel, but they are not susceptible to corrosion, and as a result they can last up to 100 years. Depending on the material from which the metal tile is made, the price can vary greatly. The finished sheet is profiled (bent). It turns out sheets that when laying resemble ceramic tiles.
History of invention
In the early 80s of the last century, the world heard about the new roofing material from the company Rannila. The consumer liked the novelty and quickly gained a reliable position in the world market. It attracts with its appearance, durability, ease of installation and maintenance. He received the name of metal.
Specifications
Sheet metal consists of several layers:
- protective and decorative (front);
- primer;
- passivating;
- zinc;
- steel sheet;
- paint (inside).
A protective and then decorative polymer coating is applied to the metal sheet, which also serves as a protection. Thickness of rolled products is 0.35-0.6 mm. If it is thinner, then the tile is easily deformed and the roof will turn out to be of poor quality. The thicker the rental, the heavier your roof will be. And so it is more expensive. It is recommended to use a roof tile with a thickness of 0.45 mm. It is very difficult to distinguish in appearance from a similar product with a thickness of 0.5 mm. This is sometimes used by unscrupulous sellers, passing off cheaper metal tiles for expensive ones.
The steel coating should, in addition to polymer, consist of a passivating (protecting from internal rust) layer and a primer.
Its absence will lead to the rapid destruction of the polymer coating, and the tile will begin to rust, which means it will rot. You can check the primer on the sample that the seller must give you.
A protective metal coating may be zinc, a mixture of zinc with aluminum, aluminum with silicon.
Protective and decorative coating
Polymeric coatings are more often used such:
- polyester (glossy);
- plastisol;
- matt Pural (polyurethane);
- coarse matte Purall Matt;
- matt Purex;
- polyvinylidene fluoride PVDF.
Firm Ruukki
One of the best is considered Finnish metal tile from the company Ruukki. She began her activities in 1960. At first, it provided jobs for its citizens, and in the 80s of the last century it entered the world market. It works in 26 countries. Constantly improves product quality. It takes care not only about the technical characteristics of the products, but also about environmental friendliness.
Metal Ruukki:
- Roof made of metal "Monterey". Has a small profile wave. Price 475-690 rub. per sheet depending on the type ("Standard", "Plus", "Premium Plus").
- The tile "Decorey" has a great view. This novelty is a high-quality metal tile. The price for it is relatively small - about 320 rubles. per 1 sq. m.
- Modular metal tile "Ruukki Finer" - a new direction in the manufacture of roofing materials. The price is about 600 rubles. per sheet.
This is not to say that the tile does not fade at all. This happens over time, but high-quality metal tiles burn out evenly and invisibly to others. Poor quality is stained. This process is less noticeable on dark tiles. The coatings are durable, do not respond to temperature changes. They can be used normally at drops from -50 to +50 degrees. But in the presence of aggressive climatic or natural impacts, any tile needs to be strengthened during installation.
Characteristics of various coatings
The thickness of the protective and decorative coating is selected depending on the environment of application of the product. If the room that needs to be covered is in a normal area, where there are no aggressive factors, then a thickness of 25-30 microns is used. But when a plant with harmful production is located nearby, a denser coating is needed. The maximum thickness is 200 microns.
Finnish metal tiles have a guarantee not only for technical condition, but also for external characteristics. The metal tile coated with "polystyrene" has a guarantee for the appearance of 10 years, for technical condition - 30 years.
Even more reliable are Purex coated products. They have a modern look. A guarantee for an esthetic look of 15 years, for protection against corrosion and damage - 40 years.
Finnish metal pural finishes (matte finish) are made using polyamide and polyurethane. This makes it possible to make it even stronger and more durable. After all, guarantees for products with this coating are respectively 20 and 50 years.
Profiling is performed using the cold pressure method. All processes are fully automated. The wavy appearance is given to the rolled sheet by profiling rollers. Then a transverse wave is created, also using cold stamping.
The wave size (height and distance between two waves) can be different, depending on the type of metal tile. Depending on these parameters, different rules apply, according to which the metal tile is installed. Product instructions should contain this information.
There is a Finnish metal tile of small size, with one tile. But it is harder to produce and even harder to mount. Therefore, preference is given to a profiled sheet (as in due time slate sheets replaced ceramic tiles).
The advantages of metal
- Light (5-10 times lighter than ceramic).
- Durable.
- Beautiful.
- Easy to install.
- It does not require special care.
- You can choose different colors and textures (matte, coarse-grained).
- Eco-friendly.
- Cheap installation.
- Can be laid in winter.
- Not covered by moss.
- You can lay on the old coating by adding a new crate. This is very convenient when repairing a home when it is possible to flood the ceiling with rain.
Disadvantages of metal tiles
- It makes a lot of noise during rain, so it is better to use soundproof materials during installation .
- The roof is very hot, therefore, along with insulation from noise, they also lay protection against heat.
- All holes made must be insulated with paint to prevent corrosion.
- It is necessary to use high-quality gaskets for self-tapping screws, otherwise the roof will leak over time.
- When repairing roofs of complex shape, the material consumption greatly increases.
- For installation, you need a special tool.
The main disadvantage of a roof made of this material is noise from wind and rain. But is metal tile to blame? Often, noise is associated with improper installation of the roof.
This happens if:
- the lathing on the roof is uneven;
- insufficient number of screws, poor quality seals on them;
- small angle of inclination;
- improper insulation and sound insulation.
Caring for a metal tile
It’s not difficult. Leaves, dust do not get stuck on the roof due to the properties of the coating. They glide along the roof and slide down. The drainage system is also easily cleaned from fallen leaves.
Customer reviews
Buyers confirm the quality of Finnish metal tiles. They note that after five, and sometimes ten years, her appearance has not changed.
Consumers like the fact that metal roofs do not require repairs.
I like the presence of a bend of the bottom edge of the tile. This prevents the bottom sheet from rubbing and makes the seam invisible.
The downside is called only the high price of the product.
The Finnish metal tile is of high quality. Therefore, manufacturers are not afraid to indicate the name of the manufacturer on their products. On the back of each sheet put information about the company and the main characteristics. This allows you to verify the authenticity of the goods. Therefore, if you took the seller’s word that the product purchased from him without identification marks is Finnish metal, blame yourself.