Old Moscow mansions are covered with seam roofs. This type of roof is strongly associated with architectural classics. However, almost all cottages in classical style, tiled. Perhaps it is worth returning to the well-forgotten old? Moreover, it is not so expensive, but it looks more stylish.

Roofing sheets, which are fastened with a seam method, are called paintings. Various metals and alloys are used as a material for paintings: copper, aluminum, zinc-titanium, galvanized steel. The most expensive is to cover with copper. Zinc-titanium is a more democratic material, but some of its models overtake copper in price, and it behaves capriciously - it can rot if installed incorrectly. Perhaps the most budgetary solution will be a seam roof made of aluminum with polymer coated and a film that protects the sheets from scratches. Galvanized steel sheets are also suitable for our climate. They can be coated with polyester and plastisol. Such steel withstands heavy loads, repels dirt well and resists temperature extremes. Zinc-titanium actually includes copper, so it can develop a patina over time. But there is a kind of material that is covered with a protective transparent film and designed for any climatic conditions. When ordering non-oxidized copper seam roofing, be aware that over time, the natural oxidation process will cause your roof to turn green. Modern technologies make it possible to delay this moment and achieve a uniform "greening", but one way or another, patina is inevitable. Will it match the color of your home? Think about the consequences ahead of time. Copper is a material that requires respect. During its installation, workers must move in rubber shoes so as not to leave scratches on the sheets.

“Paintings” are cut out under the shape of your roof. Rolled metal, unlike the popular metal tiles, gently bends around the domed sections of the roof, the tops of the turrets, bay windows. Along the edges of the sheet-picture has a fold, which serves as a fastener with the adjacent sheet. The connection of the folds is single and double lying, as well as standing corner, when two sheets are connected and bent at an angle of 90 ° C, and double, when the edges are bent at 180 ° C, forming a straight seam-comb. The latter option is more reliable, as it eliminates leaks. There are also self-locking connections. The folds on the sheets are made in production, and they are connected on the spot using a special device. To fasten paintings to the base of the roof, clamps are used, which are movable and fixed. The former are used for a certain length of the sheet when it comes to metal expansion - it is the movable part of the clamp that allows the metal to expand and contract without breaking. For the same purpose (so that the sheet can walk), the folded ridges are not pressed to the end, leaving a small gap. Fixed clamps are also needed, but they are installed in other places. Specialists themselves determine where which fasteners are needed depending on the size and location of the sheets, however, even with professional assembly, the metal can form small waves. This is due to its expansion. Over time, the material will “settle down” and the waves will become less noticeable.

A pie for a seam roof is not much different from a pie for a metal tile - all the same crate, the pitch of which depends on the angle of inclination. However, there are still nuances. For example, a zinc-titanium seam roof requires good ventilation, otherwise it quickly rots. For ventilation, 2 methods are suitable: simple and expensive. When idle, a sparse wooden crate is made. But you can also make a continuous crate, and lay a special membrane on it. It is necessary to mount zinc-titanium at positive temperatures, otherwise it may break. Seam roofs are good because they can be flat, but if the slope angle is less than 14C, then the crate under the roof should be solid. Titanium-zinc roofing runs the risk of rusting in places if the wrong components are used - only galvanized steel or stainless steel materials are suitable for such sheets. And with copper, you can not use anything other than stainless steel or the same copper.

Expert opinion

There is a common misconception - the seam roof is noisy. In fact, if in roofing cake there is thermal insulation, then the problem of sound insulation is also solved. In addition, the metal does not have a tile section, which makes it less noisy. It is better to trust the installation of the roof to professionals who are well acquainted with the folded laying method. "Specialists of all trades" are unlikely to know in which places movable and in which fixed clamps are needed. They also did not hear about the linear expansion of the metal, therefore, during installation, they are unlikely to make an amendment for this, and such an error can lead to a rupture of the material.

To give additional strength to metal sheets, longitudinal stiffeners are made on them. Such a roof can withstand additional snow load.

Errors when assembling sheets-pictures:

• Loose seams;
• Rupture of sheets due to their constriction;
• Gathering on metal due to poor fit.

Benefits of seam roofing:

• Absolute tightness (with proper installation);
• Possibility of hermetic coating of complex roofing forms;
• The best coating yield is if the roof is almost flat (angle of inclination up to 12°C).

A roof made of sheet steel with a special edge connection is called a seam roof. The seam is formed by a special bend of the edges of metal sheets. They provide a beautiful and secure connection that has a drainage groove. Building a seam roof with your own hands is as easy as any sheet. Only instead of rivets, welding use a roofing seaming machine. Without it, it was previously impossible to make a seam roof, but now a technology has been created that has simplified this task as well.

How is a seam roof arranged?

The roof frame consists of standard layers of the roofing pie: rafters, windproof membrane, lathing, counter lathing. The front coating - rolled steel - is selected with galvanization or a polymer layer. The second option makes it possible to choose a shade of the roof that harmonizes well with the house and landscape.

Steel is laid with longitudinal strips, but it is not necessary that they be solid. For horizontal connections, apply special kind folds: recumbent. It is flat and almost invisible from the outside. The longitudinal edges are connected by a standing seam, forming a convex edge of a complex connection. Such a seam roof device provides the house with a durable structure with a warranty period of up to half a century. Also, the seam lock is divided into single and double: simpler and more complicated.

Benefits and Applications

Sheet steel is an inexpensive material that is easy to work with. One person with an assistant is able to cover the roof in this way, it is only necessary to ensure that the sheets are lifted up. And the construction team is able to cope with such a coating in 2 days. Low cost and high quality made it possible to use it for the renovation of residential, public buildings and also to cover new homes. The ability to carry out installation independently and quickly made the seam roof popular in private low-rise construction.

Do-it-yourself installation

For a standard connection of panels, you need to purchase a machine for rolling up folds. Do not bother to replace it with handy means, this may disrupt the technology, the quality of the entire roof will suffer. If there is no possibility or desire to acquire a machine, a self-latching seam roof with edges on which a special lock has already been formed is used. This type sheets simplifies installation, speeds up work several times. The lock consists of a locking tooth that is hooked when one metal strip superimposed on another. It remains only to latch the system, which takes just a few seconds.

Tools for the job

For installation of a seam roof, you will need the following tools:

• screwdriver
• metal scissors
• hammer, mallet, tongs
• sealant gun
• seaming machine

Fastening is done to a metal or wooden crate, solid or in increments of no more than 40 cm. A waterproofing layer is required. Standard dimensions sheets for installation of seam roofing:

• width 465 mm
• height of edges (locks) 40 and 45 mm

The self-latching technology makes seam roofing generally more expensive, but the ease of installation and the guaranteed quality of the connections result in real cost savings for the roof installation.

Current: copper roofing

Coating material is not always chosen stainless steel. Due to the properties of this metal, a copper seam roof is distinguished by a long service life and durability. At first, it stands out with a characteristic brilliance, then it becomes covered with a patina and acquires a noble shade. Copper does not collapse for hundreds of years, such a roof with a seam connection will become truly durable.

Fastening features: clamps

Regardless of the metal of manufacture, the fold is divided into the following types:

• standing
• recumbent
• with stiffener
• with clamp

With the help of clamps, both types of panels are mounted: self-latching and using a tool. The clasp in the seam connection allows you to attach metal panels to the crate absolutely imperceptibly. It is of 2 types: movable and fixed. The first is used for sheets longer than 8 m, and the second for short sheets (up to 8 m). Directly fastening is done with a self-tapping screw with a press washer. The most reliable is considered a standing double fold. It is made with a double bend of the edges, thanks to which it differs in appearance: a characteristic convex longitudinal connection is obtained.

Mounting Features

The first and all subsequent panels have a lower lock towards the next installation. Work is carried out from the bottom up, the distance between the longitudinal joints is 40 cm. There is no fundamental rule on which side to start installation: from left to right or from right to left. The main thing is to observe the location of the lower lock. For metal crate take self-tapping screws 4.8x20 mm, for wood 4.8x35 mm. If the crate is solid, fastening is carried out at a distance of at least 40 cm; if the crate is sparse, fastening is done in each row. In places where sheets adjoin pipes and walls, a wall profile is used.

LLC "RSK 24" performs roofing work for private, administrative and industrial buildings in Moscow. Here you can order the installation of seam roofing at affordable prices in the region.

The company has been providing services for the construction and repair of roofs for more than 10 years. We provide a guarantee for the whole complex of works.

Seam roofing is a metal flooring in which individual elements (pictures) are connected using folds. The material is made from rolled or sheet steel with galvanized and polymer coating, as well as from aluminum and copper.

Structurally, the roof consists of the following elements:

• picture - a sheet of steel or non-ferrous metal, the edges of which are prepared for seam connection;
• fold - a way of connecting pictures. There are several types of seams - lying, double, single, standing, self-latching.

The main advantages of a seam roof include a small weight of the structure, reliable protection from leakage, ease of repair and operation, durability.

Materials used for the installation of seam roofing

• Cink Steel. For work, material with a thickness of 45–79 mm is used. Service life - 25–30 years.
• Color coated galvanized steel. The roof surface is more resistant to corrosion and has a more attractive appearance. Service life - about 30 years.
• Copper in rolls. A fairly durable coating that retains its properties for 100 years.
• aluminum. The material retains its characteristics for a long time, can last more than 80 years.
• Zinc titanium. Expensive material, characterized by the complexity of the installation of seam roofing. He has an attractive appearance and long service life.

Estimated cost per m² and running meter:

Download full price list

Preparatory work for the installation of seam roofing

The following tools are required for laying the rebate expendable materials: wire, nails, clamps, bolts, metalwork and wooden hammers, measuring tools, metal shears. If you plan to install a roll-type seam roof, then you need special machines.

Before installing the flooring, you should carry out preparatory work. First of all, you need to install the crate. In the case when the roof has many angles, it is better to make the crate solid. In preparation for the installation of a seam roof with self-latching joints, it is recommended that the crate be made not from wooden bars, but from metal.

The distance between the bars should not exceed 25 cm. Otherwise, dents form on the roof. The roof angle must be at least 140 degrees. If less, then a continuous crate should be made to avoid deformation of the flooring during the formation of ice.

The sequence of work during the installation of seam roofing

The technology of laying the roof includes two main stages.

1. Painting preparation. Before starting work, it is necessary to cut the blanks according to the available measurements. After that, the flange connections of adjacent sheets are marked and the edges are bent up. Holes for chimney pipes and other roof elements are also cut out. All work with sheets is carried out directly on construction site.
2. Seam roof installation. The paintings are lifted to the roof of the building, stacked and connected to the flange. After that, they are fastened with clamps to the crate, while one end of the fastening is clogged, and the other is hidden under the seam. Holes for structural elements of the roof are closed with galvanized aprons. When carrying out these works, it is necessary to align the sheets mechanically using a wooden mallet and a beam.

Seam roof installation technology

The work uses both traditional and modern seam roof technology.

Stages of a roof device using traditional technology:

• production of paintings and roofing elements for subsequent assembly. At this stage, a drawing, cutting of blanks and preparation of their edges for joining by the seam method are carried out;
• raising paintings to the roof and connecting with folds;
• fastening paintings to the crate using clamps;
• installation of additional roofing elements.

Modern technology for the installation of seam roofing involves the use of material in rolls. Paintings in this case are cut to the full length of the slope, so there is no need to make horizontal connections. This has a positive effect on the tightness of the roof. You can also use silicone sealant for extra protection against leaks.

Advantages modern technology seam roof installation:

• production of paintings of any length;
• the use of a mobile rolling mill, which provides the most durable and tight connection;
• minimizing the total number of connecting elements when attaching paintings to the crate.

Installation of seam roofing is a rather laborious process that requires special knowledge and experience. To install seam roofing on the roof quickly, efficiently and inexpensively, contact construction company RSK 24.

Seam roof - the most reliable way roof arrangement. The seam method gives the most hermetic connection of metal sheets. Besides, metal roof distinguished by beauty and durability.

A fold is a seam with which sheets of metal are connected to each other. Seam joints are completely sealed. Seam roof, thanks to this technology, is the most reliable and durable type of coating for the house. This fact is recognized by both construction specialists and ordinary consumers.

Benefits of seam roofing

• The main advantage of a folded roof is its tightness, which is achieved by the installation of a folded seam. The peculiarity of this seam is that the seam roof installation technology does not allow the presence of holes on the sheet of the roofing material, and, accordingly, completely eliminates the ingress of moisture into the structure;
• a small mass of roofing sheets with a thickness of 0.5-0.6 mm significantly reduces the load on the foundation and the truss system of the building;
• a smooth plane contributes to the rapid descent of rain and snow, protecting the roof from damage;
• fire safety. The seam roof is metal, so it cannot burn and melt;
• durability. If the seam roof is installed with high quality, its service life reaches 60 years or more.

The disadvantages of seam roofing

• Difficulty of installation. Do-it-yourself seam roofing can be equipped only if you have the skill of working with metal;
• The need to build a lightning rod due to the ability of the roof to accumulate electrical voltage;
• High resonant properties. The sound of raindrops is quite noticeable, and therefore measures are required to equip additional sound insulation.

The disadvantages also include the high cost of a roof with a special coating to give a more aesthetic appearance to the structure, since the simplest version (galvanized steel) does not look very presentable.

Seam roof device

For the construction of a folded roof, sheets of metal are required, prepared for installation in a special way. They are called "pictures", and are a canvas with curved edges that serve as the basis for a fold (seam). To fix the metal on the roof, a seam roof clamp is used. These seam roof elements can be purchased at the store or made by yourself with a special device.

When arranging a seam roof, installation can be carried out in different options. The folds are located not only vertically (the most common type), but also horizontally. The seams themselves also have several varieties.

Standing single fold is the simplest. The folded edge (fold) of one picture (sheet) is put on the bend of the adjacent picture and fastened to the crate with a clamp.

A standing double fold is more airtight, since in this case a double bend is made.

The recumbent single fold is an example horizontal version location and is used quite rarely due to poor reliability. In order to avoid the need to make horizontal folds, not sheet, but rolled metal is currently used.

The recumbent double fold assumes the presence of a bend of two turns. This seam roofing technology provides greater tightness than a single one.

Seam roofing is mounted manually or using an electromechanical seaming machine.

How to make a seam connection with your own hands, see the video:

Clickfalz. To speed up the installation of a seam roof, use the so-called self-latching roof - clickfalz. Self-locking seam roofing does not require the use of any special tools. It is arranged in such a way that the edges of the paintings interlock with each other into a lock with a slight pressure.

Because the quality installation and manual repair of a seam roof can only be carried out by a specialist roofer, then a self-latching seam roof is a real find for those who have opted for this type of roof.

Materials for metal seam roofing

One of the most popular seam roofing metals is galvanized or polymer-coated steel. Durability, resistance to corrosion, reasonable price - these are its characteristics.

Galvanized seam roofing becomes stained over time and therefore requires periodic tinting.

An alternative is steel with a polymer coating. It should be taken into account that different coatings perform different functions. Some prevent negative impact natural phenomena(for example, pural), others - increase strength (plastisol). Polymer coatings have a rich color scheme which is important from an aesthetic point of view.

The seam roof made of copper looks very beautiful. Its main advantage is that no microorganisms, including moss, can live on it. Copper under the action environment covered with a patina - a layer of green oxides, which makes the roof even more beautiful. It is because of the oxide layer that it is not recommended to combine this metal with others. Copper, as a relatively soft material, requires especially careful handling, especially since its cost is quite high.

Installation of a copper seam roof is easier than any other. Plastic this material allows you to create a coating on the roof of almost any configuration.

Zinc seam roofing gradually becomes silver-gray, which gives it splendor. It is coated with zinc carbonate - a special protective layer. However, due to the short service life (50 years), zinc roofing is not currently used in Europe.

Aluminum seam roofing is corrosion resistant, durable (service life of more than 100 years), has a beautiful shine and low weight. The disadvantage of aluminum roofing is the dependence on temperature changes. A feature of the installation of such a roof is the use of floating clamps and galvanized self-tapping screws.

Zinc-titanium is a strong alloy that makes the roof durable and ductile at the same time. It is very attractive from a design point of view - the noble patina gives splendor.

Titanium-zinc-copper alloy has a high degree of ductility, which greatly facilitates the process of giving the metal a pattern (profiling).

Aluzinc is a unique alloy of aluminum and zinc, which is used to coat steel paintings in order to protect them from corrosion.

In conditions high humidity and temperature, as well as in areas with difficult ecology, it is recommended to install seam paintings with a special pural coating. Pural is a polymer that perfectly protects the roof from exposure to sea air, acid rain and hot sun.

It should be noted that such expensive materials as copper and zinc-titanium require extra care when installing seam roofing. Careful handling at the installation stage will significantly extend the life of the roof.

Types of folded roof

There are two types of seam roofing - cast and rolled.

A cast (sheet) seam roof without transverse seams can be assembled by hand without the use of special roofing tools. Solid and durable, such a seam roof has long been recognized in Russia.

Roll technology for the production of folded roofs got its name because roofing paintings are made of metal rolled into a roll. On a seam-rolling machine, a picture of the desired length with a double seam is formed directly on the construction site.

The most popular both in Russia and abroad are the products of the Finnish company for the production of folded roofing with self-latching folds Ruukki.

Another famous brand is the Grand Line seam roof. The Grand Line Company is one of the largest Russian manufacturers of materials for cottage and low-rise construction. The company's factories produce two types of seam roofing - Klickfalz and double standing. Wide range of colors and different kinds polymer coatings make it possible to create a masterpiece roof.

Mounting technologies

Roof installation technology depends on whether it is warm or cold attic in project. We will consider the option of a mansard insulated roof with a seam roof. The most reliable is considered to be a roofing pie with a spaced ventilation gap and an antioxidant film.

The truss system from a bar serves as the basis of an underroof. To support the insulation, a sparse crate is built, and an air gap and a wind barrier (super diffuse membrane) should be located above the insulation layer. Further - a continuous crate, a hydrobarrier (antioxidant film). The final stage is the seam coating.

Important! Before laying insulating materials, carefully study the instructions. Each side of these materials performs a specific function, and improper installation can lead to the opposite result.

Prior to the construction of the crate for the seam roof, the cornice floor should be mounted and sheathed gable overhangs. This design must be attached to the rafters, for which bolts and nails are used. The crate must withstand the loads created by the roofing material and be as even as possible.

Lathing for seam roofing can be made of board, wooden beam or steel profile. The step of the lathing under the seam roof is 20-25 cm. With such a lathing device, the metal is not subjected to deformation, the degree of resonance is significantly reduced. For copper seam roofing, which has heaviest weight, the crate is made continuous.

When installing a seam roof, the angle of the roof slope should be taken into account. The type of fold depends on its size, which will provide the highest quality of the coating. Minimum slope for a folded roof - 3 degrees. This angle of inclination requires the installation of a double vertical seam and an additional dewatering layer. The greater the slope of the slope, the less likely the stagnation of water on the roof.

Roof barriers are required to minimize snow avalanches. In addition, the installation of fences for seam roofing is necessary for safe work builders who install or repair the roof. There are special instructions, the execution of which will help to avoid trouble during the construction and operation of the roof.

Roofing tool

For the manufacture and installation of seam roofing, there is special equipment.

Previously, you can make paintings using a folding machine.

To obtain a seam connection directly on the roof, a tool for seam roofing of two types is used.

For manual (mechanical) seaming of the fold, equipment is used in the form of a set consisting of pliers with two frames closing the folds.

Sealer is a type of electrical equipment. The use of such a machine significantly increases the speed of roof installation and eliminates the physical load of the roofer.

The appearance of the seam roof is very aesthetic and beautiful. Subject to taking into account all the recommendations, it is possible to build a structure that will please the eye for many years and create the most comfortable conditions for living.

Seam roofing is mounted from sheet or rolled metal - copper or steel with an anti-corrosion and protective and decorative coating. The fastening of elements using the double seam method allows you to create a reliable coating that can last for decades.

Types of folded roof

Galvanized roofing is popular steel sheet. Traditionally, the surface of an iron roof is painted with paints for metal, which can additionally protect the material from corrosion. Today, manufacturers offer galvanized steel sheets and coils with a colored protective and decorative polymer coating on the outside and a varnish layer on the inside.

In addition to steel, the durability of which is 30 years, the material for the manufacture of seam roofing is:

• copper (more than 100 years of operation);
• zinc alloy with titanium (about 100 years of service);
• aluminum (up to 80 years of use).

When arranging a roof using rolled material, metal is saved and accelerated installation work– the strips are cut exactly to size, there is no need to join the sheets, increasing the length, to form the longitudinal edges of the future lock connection using a special machine.

“Falz” is translated from German as “gutter”, “seam” is the designation of the principle of connecting the edges of elements from sheet metal. The fold can be single or double standing, single or double lying.

A number of manufacturers suggest using ready-made panels with profiled edges for self-locking connection of elements. In this case, the installation of a folded roof does not require specialized tools and is carried out in the shortest possible time. The disadvantage of finished panels is their high cost.

Preparatory stage

First of all, you should choose roofing material- this depends on the technology of laying the coating. Please note: for complex roofs and slopes with a small slope, rolled steel with galvanization and polymer coating is ideal.

The seam roof is mounted on top of the crate:

• sparse wooden (from bars 50x50 mm, with a step of 300-400 mm along the axes of the elements);
• rarefied metal;
• solid wood (from boards 32x100 mm or sheet wood material).

The installation instructions require the arrangement of a continuous crate if the slope of the slope is 7-14 degrees, since in this case the roof covering experiences high snow loads.

All wooden elements truss system before assembling the roof frame must be treated with a bio-flame retardant to reduce the risk of wood damage by fungus, pests or fire.

A waterproofing layer is laid over the rafters. roll material(roofing felt or a special membrane), and then a counter-lattice is attached, on top of which the crate is stuffed. Waterproofing will prevent moisture from contacting the metal and protect the roofing material from corrosion.

The metal coating is "noisy" and transmits to building construction vibrations that sound-absorbing thermal insulation material in a roofing pie. Even at the design stage, you should think about fastening strips of foamed polyethylene or other material that can dampen vibration along the laths of the lathing. Or use a special structural film as a waterproofing agent.

A metal roof needs high-quality lightning protection, which should also be taken into account if you have opted for a seam roof.

Tools and materials

It is advisable to entrust the installation of a folded roof to experienced professionals of the Marisrub company, who have specialized electrical equipment at their disposal. The use of exclusively hand tools greatly complicates and slows down the work.

Step-by-step instructions will help you mount the seam coating with your own hands, but it is important to act very carefully - mistakes when making a seam will lead to roof leaks and the need to completely dismantle the coating.

If possible, rent electric machine, with which at the edges of the rolled or sheet material you can quickly make the necessary folds for a double standing seam. This is a reliable hermetic connection, it is by this principle that cans with fish and other canned food are rolled up. In other cases, you will have to use a mechanical device to bend the edges of the sheet under a single fold.

A special seam can be used to seam electric tool or pliers with special frames that form the edge of sheet metal.

You will also need:

• measuring tool (tape measure, plumb line, building level);
• electric drill;
• nibbling scissors (electric) and for metal (manual);
• rubber mallet, wooden;
• screwdriver;
• pliers;
• a hammer;
• fasteners (nails, self-tapping screws with a sealing gasket, kleimers from roofing material cut into strips).

To ensure the reliability of a single standing seam, made with a mechanical tool, it is allowed to use construction silicone sealant.

In addition to sheet or rolled metal, you will need elements of the roofing system made of the same material - end strips, ridge, valleys, wall profile.

Coating technology

After the installation of the battens, waterproofing and counter battens, the boards that form the base of the valleys are nailed, the cornice and ridge boards are installed. On the wooden base the valleys are nailed to the corresponding metal elements of the roof. Metal is attached to the cornice eaves plank- drip, made of the same material as the roofing. The attachment points of the elements will subsequently be covered with roofing.

On the ground or in the attic, paintings should be prepared - the elements from which the flooring will be created. rolled roofing steel already has the required width, and roofing sheets 125 cm wide should be cut in half to increase the rigidity of the finished structure.

Cut the kleimers in advance - strips of 10x2 cm, they will help to fix the paintings without breaking through the roofing iron, so that the coating is completely sealed.

Rolled steel is cut into strips along the length of the slope with a margin of several centimeters, which will go to the hem over the edge of the drip and to the ridge along the ridge. Then the blanks are driven through the machine, bending the edges under the double standing fold. After that, the paintings can be lifted to the roof and mounted using a hand tool or an electric machine.

The technology for arranging sheet metal roofing is somewhat more complicated. For roofing sheets cut to length (62.5 cm wide), it is necessary to bend the edges under a single standing seam. This can be done with roofing pliers, but it's easier to use special device, welded from a steel corner with a shelf of 75 mm.

On one side of the sheet, an edge 2.5 cm wide is bent at a right angle, on the second - 4.5 cm. To get a picture corresponding to the length of the slope with a small margin, you will have to join the elements. For this:

• on the upper edge of one sheet, with the help of a mallet, the bent edges are unbent;
• a line is drawn with an indent of 2 cm;
• with the help of roofing pliers, a two-centimeter edge along the edge of the sheet is completely bent outward;
• a similar operation is carried out with the lower edge of the second sheet, but the edge is bent inward;
• sheets are joined so that one edge goes into the other;
• the joint is sealed with a mallet;
• with tongs and a mallet, the side edges are lifted back for a seam connection.

As a result, we get a completely sealed and reliable joint. All work on bending metal with a mallet should be done using a wooden lining so as not to damage the material.

On the end of the slope, it is required to nail the kleimers with nails - they will help to properly fix the first sheet. The side clamps are attached with the painted side facing out.

The first picture is installed on the edge of the slope, close to the limiter clamps with a high curved edge. The upper end of the flooring element should extend beyond the ridge by 3-3.5 cm. By bending the side clamps, you will firmly fix the sheet on the rafters. The lower part of the picture should protrude beyond the dropper by 1.5-2 cm.

Bend the tip of the kleimer by 1.5-2 cm, getting a workpiece in the form of the letter G, and nail it to the rafters so that the long part is located close to the raised small edge of the laid picture. Kleimers are mounted in increments of 50-60 cm along a continuous crate or on each element of a sparse one.

Kleimers should be fastened with the painted side inward - after the installation of the paintings, the free ends of the kleimers are bent outward and they should merge in color with the roof.

Bend the ends of the kleimers over the edge of the roofing element, press the fold with pliers. Lay the next picture close to the fixed sheet - there should be a high edge next to the low edge. Make sure that the clamps do not fall on the transverse joints of the sheets, otherwise there will be too many layers of metal in the castle.

According to this principle, the flooring is mounted on the entire slope. Please note: to make the roof look neat, calculate the width of the extreme sheets in advance - they may have to be made narrower than the standard ones.

At the next stage, it is necessary to bend the edges of the sheets over the edge of the dropper, using a mallet. At the same time, cut off the raised ends protruding beyond the eaves with scissors for metal.

Then proceed to the formation of single seam locks. To do this, use the special hand tool or roofing pliers, a mallet. It is necessary to bend the high edge over the low edge of the adjacent sheet, and then bend the free end of the kleimer outward.

Bend the vertically protruding edges of the fold along the cornice with a corner using pliers or tongs - this will additionally secure the fold and prevent one sheet from slipping relative to the other.

In the ridge part, the edges of the sheets with a cut-off lock are bent onto a horizontal bar, ventilation windows are created, and the ridge element is attached using self-tapping screws with elastic gaskets. End strips are installed along the edges of the slopes.

The technology for arranging a seam roof is quite complicated, but step-by-step instruction will help to understand the features of the installation of such a coating.