The metal roofing sheet imitating a tile is very popular, both in industrial, and in civil engineering. He found special recognition from individual developers. What types of this roofing material can be found on sale and how to properly close the roof to them? What are the features of the creation of waterproofing and the device of crates under the metal: step, materials and technology? Answers to all these questions should get everyone who is going to carry out the installation of metal tiles with their own hands.
Sheets of metal roofing: dimensions, prices and types
Production of profiled sheet, imitating shingles, is carried out in several stages:
- hot rolled steel sheet steel is produced;
- it is subject to galvanization cycles and anti-corrosion protection coatings. On top of these layers, a decorative coating is applied, having different colors;
- by the method of cold rolling and simultaneous metal stamping, the shape of the tile is familiar to everyone;
- metal is cut into sheets of the required length.
Width – 1250 mm, length – no more than 8 m. The thickness of products is from 0.45 to 0.55 (sometimes up to 0.6) mm. These are standard sizes of sheets of metal for the roof. Their price depends on the area, surface, thickness of the material, manufacturer, quality of protection and varies from 3.5 to 5.5 cu. for m ?.
Depending on the material from which the product is made, there is a metal tile: steel with a zinc or aluzinc coating, aluminum and copper. The last two options are too expensive to be widely used in construction, so it is worthwhile to dwell in detail only on steel sheets.
Depending on the geometric features of the profile, the metal tile is divided into several types that have beautiful names:
- Monterrey is the most famous species. Externally, the profile of such a sheet resembles a real tile with rounded edges;
- Cascade – strict classic look. Profile resembles a chocolate bar. Straight lines facilitate the coating of complex roofs;
- joker – waves of such covering remind the correct tile. In the context, they have the form of an ideal hemisphere;
- Banga – a modern type of profile that, due to its height, creates a three-dimensional effect;
- andalusia – the profile features of such a sheet make it possible to fix metal roofing on the roof with the help of special locks, which also hide self-tapping screws;
- Shanghai is a Chinese type of profile that is completely symmetrical.
These are only the most famous, having a height of waves of various sizes, sheets of metal for the roof. Their price depends on the shape of the profile. Peculiarities of the relief of roofing sheets make it necessary to comply with a certain technology of roofing of metal tiles.
The easiest case is the installation of a gable roof. There is nothing difficult in this work. First, the crate is prepared for metal tile, the pitch of which depends on the type of profile, sheet thickness and slope angle. It is built from boards up to 25 mm thick, and can be covered with plywood in some cases.
Then choose which side to start laying sheets. There is no big difference in this, but it is still more convenient to do it from the side where the sheet does not have a capillary groove. In addition, each next sheet will go on top of the previous one. Otherwise, it will have to slip. The first sheet must be laid absolutely exactly in relation to the plane of the batten and parallel to the bottom with an allowance of 2 – 3 cm. The result of the whole work depends on how it is laid. After all, a deviation of only 1 degree at the beginning will at the end lead to a significant departure from the desired direction.
Fastening of sheets is carried out with the help of special roofing screws, having rubber gaskets. They are screwed with a screwdriver into the cavity between the waves without effort, as the gasket can be damaged. Then wind and ridge elements are mounted. These are the main stages of the technology of roofing of metal tiles. Some important nuances of this process need to be disassembled in more detail.
Helpful advice! When installing metal tiles with your own hands you cannot use a grinder, but only scissors or a hacksaw for metal. When working with a grinder from heating, the protective polymer layer is destroyed, which leads to premature corrosion.
In the construction there are 3 types of crates for the roof: solid, sparse and from sheet materials. The solid one involves fastening the boards to the joint to each other, which requires a large amount of material.
The design of sheet materials, such as plywood and OSB sheet, is universal and is quite suitable for laying metal on it. However, the most suitable for it is a sparse crate under the metal tile, the step of which must be calculated individually for each profile type.
Roofing materials for the roof: types and prices of modern coatings. Varieties of coatings. Comparative characteristics, disadvantages and advantages. Classification of materials for the construction of roofs.
To calculate this step, you must nail the first trim board parallel to the eaves and the last parallel to the ridge at the very top of the slope. Then the sheet is laid in such a way that its lower spade rests on the end of the first batten board. The top of the sheet should go to the board nearest the skate.
Then the place is marked for all the intermediate boards of the batten. They should be nailed in such a way that the sheet should fall on each of them at the top of the steps. Places of bends should not be between the boards. Strictly speaking, the crate step under the metal tile should be equal to the step of its transverse wave.
Once the crate is ready, it is time to waterproof the roof of the house under the metal tile. This stage cannot be excluded from the whole process. It protects the rafters from moisture, which can get under the coating, and also prevents condensation on the inner surface of the sheets from accumulating.
There are a large number of modern effective and durable materials, such as: membrane and anti-condensate films. The use of materials on a bitumen basis, such as roofing material is not recommended. The film has all the necessary properties to ensure protection against moisture and complies with all building codes. It is easy to lay. It does not require any additional tools and manipulations. It has fire-fighting properties, as it is used on wooden floors, which cannot be said about roofing felt.
It is necessary to lay the film parallel to the eaves, starting from the bottom. Each subsequent roll overlaps the previous one. You can fasten the material with an ordinary construction stapler to the battens. Properly installed waterproofing of the roof of the house under the metal tile will provide high-quality protection of wooden structures from moisture and wind.
Helpful advice! If during the laying of sheets the polymer film was damaged, then it needs to be painted over. It can be purchased at the same store as all the material.
If you want to save on the construction or replacement of the roof of your house, you can carry out installation of metal tiles with your own hands. It is not as difficult as it seems at first glance. The most important is the first sheet, which must be laid as evenly as possible. Its bottom edge should be parallel to the eaves. This sheet in the middle is fixed with a single screw, so that you can rotate.
Then another 2 – 3 sheets are laid, observing the peculiarities of their relief. They are not attached to the crate, but only fasten together. Then the entire structure of several sheets is aligned parallel to the eaves and finally fixed with screws. Subsequent sheets fit without any problems. Align only their lower edges relative to each other.
Helpful advice! It is necessary to nail an eaves corner on the eaves board, which is an additional element of metal tile. It will protect the boards from moisture, which may drain from the edges of the sheets.
When choosing a sheet of metal for the roof: the size, price and shape of the profile are the main criteria. When laying it on the roof, the main thing is the correct installation of the batten and waterproofing, as well as the even position of the first sheet.