The erection of a private house is completed by roofing work. This stage is considered one of the most difficult and reliable. Moreover, the difficulties are associated not only with the roof device itself, but also with the choice of coverage. This is quite difficult, given the huge variety of roofing materials that are on the market.

No matter how strong and durable the material is, the reliability of the finished roof covering will depend on the quality of the attachment of the individual elements. Today, seam roofing is extremely popular, when laying which a special type of fastening is used.

Seam roof, what is it

Seam roofing is a continuous covering laid along the entire length of the slope. Its individual elements, folded panels or paintings, are interconnected by special elements - folds.

Seam panels are metal sheets, the side edges of which are specially prepared for this type of connection.

For the manufacture of a metal seam roof, you can use finished paintings (0.555x8 m) or roofing metal in rolls. In the latter case, special bending equipment is used, which is installed directly at the installation site. Manufactured picture panels can have folds of various shapes, single or double, of different lengths. In any case, they are rolled in one pass.

Metal for a seam roof can be of almost any type:

• copper;
• aluminum;
• steel;
• alloys of zinc and titanium.

On a note

Galvanized seam roofing, as a rule, has a polymer layer of pural, polyester, plastisol and others.

All of them are durable and simple, do not corrode. These materials are lightweight, easy to mold, can take any shape, even the most bizarre.

Types of folding roof

Metal sheets are prone to thermal expansion, which can create certain complications when joining. The penetration of water into the roofing cake can be prevented by laying a uniform waterproof layer on the crate under the seam roof. However, it will be impossible to achieve a rigid connection due to a change in linear dimensions. In this case, stress arises at the mating point, which leads to possible significant deformations.

Experts believe that the only reliable option for a mechanical connection is the use of a special method - folding. By the way, the word "fold" is of German origin and means "gutter" or "groove" in translation. It involves connecting the edges of adjacent paintings, which are bent in a special way. At the same time, grooves are formed along them, which serve to divert water.

Seam joints are classified according to two parameters:

• appearance: recumbent, standing or corner fold;
• degree of compaction: 1. single fold, 2. double fold (photo below).

The folds are rolled mechanically by hand or using a special tool, or electromechanically using special devices.

The main types of standing folds

• Single. This is the simplest connection method, which is used when the seam roof slopes from 10 °.
• Angular. A special L-shape creates volume and provides the connection with a spectacular appearance, therefore it is used mainly on “visible” surfaces with a large area: facade, with a seam roof slope of more than 25 °, etc.
• Double. This connection is more difficult. It is performed in two steps: first, a corner fold is created and it is bent at a right angle. Seam-rolling equipment of a new generation makes it possible to obtain a double seam seam on roof segments that are technically difficult to process. On small slopes, it is better to solder them. Transverse thermal expansion occurs mainly at the base of the seam, so there must be a gap of up to 5 mm.

A double fold protects the structure from the effects of precipitation, as well as melting snow, but it does not save from standing water either. That is why, according to SNiP, the seam roof must have an angle of inclination of at least 10 °.

On a note

However, if a special sealing tape is inserted into the seam before crimping, the minimum slope threshold can be 3°.

• Today, another type of fold is used - self-latching. To connect them, you can limit yourself to a simple click.

Advantages and disadvantages

The seam roof, like any other, has its advantages:

• the plane of the roof covering, assembled from paintings on double folds, is a single sheet with a smooth surface from which water from precipitation and snow freely descends;
• low weight, which allows not to strengthen the supporting structure and thus reduce costs;
• such a roof can be used for a long time - more than 50 years, given the high anti-corrosion resistance of the coating;
• high moisture resistance, which is explained by the reliability of the seam lock and the minimum number of holes for fastening. This level of tightness eliminates possible leaks;

• simple installation for a roof of any complexity, which you can handle with your own hands with a self-latching lock;
• waste when working with the material is minimal. For example, unused scraps of such an expensive material, formed during the installation of a seam roof, can be rearranged to other areas. Moreover, unlike, say, no components are needed for such a coating. Thus, it is much more economical;
• Suitable for all lengths, both short and long.

Folded roofs also have disadvantages. Among the most important we note:

• laying an additional layer of sound insulation, which will dampen the noise from raindrops, etc.;
• mandatory installation of a lightning rod that minimizes the risk of static electricity, which accumulates on the roof;
• the need for high-quality and expensive tools.

Installation instructions

How is the installation of seam panels, how to properly connect them to ensure durability and strength of the roof covering? The technological map for the installation of a metal roof involves the sequential execution of several stages:

• Sheets are made that are specially prepared for folding. This process is carried out in production conditions to order according to individual sizes. This allows you to get maximum accuracy when installing a seam roof. In parallel with the panels, shaped elements are also ordered, for example, overhangs or skates and more.

• Attach metal sheets with a special tool or by pressing for self-locking folds.
• Attach them to the crate. For this, narrow strips of the same material are used as sheets - “clasps”. One end of the fastener in the process of bending is brought into the fold, the second is fixed to the crate element.

Two different types of clamps are used for fastening:

• tough. The picture fixed on them remains motionless relative to the base. They are used on any slope, while the location of rigid clamps depends on the angle of the roof;
• floating. They are mainly used for slopes over 10 m long. Metal sheets expand and contract with temperature fluctuations, and a hard clamp can cause significant deformation. As for the floating, the free play of this fastener is enough to avoid such complications.

copper roofing, zinc-titanium and aluminum

This is a metal roof. The connections of the elements of the roof (pictures) in it are performed using folds. A picture for a folded roof is an element, the edges of which are specially prepared for connection with each other.

Seam roofing is made of rolled or sheet galvanized steel with polymer coatings (polyester, pural, plastisol) or without (galvanization), as well as non-ferrous metals (copper roofing, zinc-titanium and aluminum). Copper roofing has become widespread among non-ferrous metal seam roofs. Copper roofing is one of the most reliable and durable. The service life of a copper roof is more than a hundred years, subject to the recommendations for the installation of the roof and properly performed roofing work. Roofs made of titanium-zinc and aluminum are less common, but are also gaining more and more popularity.

Seam (seam connection or lock) is the type of seam that is formed when joining seam roof pictures. The fold is standing (c, d) and recumbent (a, b), as well as single (a, c) and double (b, d). Usually the side (vertical) edges of the paintings are connected with a standing seam, and the horizontal parts are recumbent. The roofing panel (picture) can be of almost any length, thanks to which the use of recumbent seams and transverse overlaps can be completely eliminated. The folds are fixed into the lock (rolled up) manually with special tools or with the help of special electromechanical seaming tools (folding equipment). Single standing seam can be self-latching. The most hermetic and moisture-proof connection of paintings is a double standing fold (Fig. D), since its edges have a double bend.

One of the new technologies in the installation of seam roofs is snap seam. Its distinguishing feature is a unique mounting system. Roofing can be installed both on the crate and on the insulation. Using a latch allows you to significantly save installation time and does not require a special folding tool.

Benefits of seam roofing:

• Seam connection provides complete protection of the roof from leaks.
• The absence of external visible holes for fastening the panels eliminates the formation of leaks during sudden changes in temperature.
• Light weight eliminates the need to carry out work to strengthen the roof truss system.
• The use of galvanized steel with polymer coatings or non-ferrous metals ensures a long service life of the roof.
• It can be used for roofs with a complex configuration.
• A variety of metals and types of coatings allow you to build seam roofing in various colors.

The disadvantages of seam roofing include:

• High thermal conductivity of the metal (good insulation of the roof and the correct arrangement of the roofing pie are required).
• Installation of seam roofing should be carried out by highly qualified roofing specialists and using special tools.
• Good sound insulation is necessary, because during rainfall it can be noisy under the roof.
• It can accumulate a static charge and there is a possibility of lightning hitting the roof, so it is desirable to equip it with grounding and a lightning protection system.
• A snow retention device is necessary, since there is a danger of snow avalanche.

Seam roof prices

Our company offers to buy a folded roof made of galvanized steel with various polymer coatings (polyester, pural, plastisol). The cost per square meter is from 250 to 450 rubles / m2 (the price depends on the thickness of the steel sheet and the type of polymer coating). Production of roofing paintings: from 55 rubles / m2.

(copper, aluminium, zinc-titanium, steel)

Seam roof installation costs from 600 to 1400 rubles / m2 (from 1600 rubles / m2 "turnkey"). The estimate for the complex of roofing works is calculated individually according to the provided project of the roof of the house. Installation prices depend on the complexity of the roof, the height of the building, the remoteness of the object from Moscow, etc.

Photo of seam roof

Seam roof device

Insulated mansard seam roof - an example of a roofing pie:

Seam roof installation

Seam roofing is arranged on a pitched roof with a slope of more than 10 ° on a solid base or on a sparse crate. It is necessary to avoid deflection of the panels, this can lead to deformation of the seam connection between the metal sheets. A solid base must be made in the area of ​​​​cornice overhangs, junctions, gutters and other complex roofing units.

Pictures are fastened to the crate with clamps (narrow steel strips). The clamp is attached to the crate at one end, and the other end is wound into a standing seam when bent. Thanks to this technology of fastening panels, there is no visible external fasteners and additional overhead elements, which ensures complete tightness of the roof. Roofing work on seam roofing should be carried out by experienced and certified roofers.

It is recommended to lift one sheet at a time to the place of installation or to install a seam-rolling machine directly at the place of roofing work.
It is recommended to use sheets with a length that is equal to the length of the roof slope, thus it is possible to avoid the use of horizontal lying seam joints.
It is advisable to use sheets up to 10 meters long. For sheets longer than 10m, floating clamps must be used and special installation rules must be followed.
To bend the folds, it is necessary to use special manual seaming tools or automatic seaming equipment.

The main technological operations for the device and installation of a metal seam roof:

Fastening and connection of roofing pictures with a double standing seam;
Eaves overhang device
Roof ridge device
Arrangement and sealing of pipes, deflectors and other elements
Drainage system device

The order of the arrangement of vertical folds of ordinary paintings

One edge of the panel is fixed with fastening clamps to the crate. Clamps should be located along the edge of the panel at intervals of no more than 600 mm and fastened to the crate with galvanized self-tapping screws. 1 - a sheet of roofing iron; 2 - cornice plank; 3 - gutter; 4 - fasteners, clamp;


Folding the fold in the zone of the cornice overhang

The device of the ridge on the seam roof

Non-ventilated skate

Ventilated skate

Chimney outlets, antennas, ventilation outlets

ROUTING
ON THE DEVICE OF A SEAM METAL ROOF

1 area of ​​use

1 area of ​​use

The technological map was developed for the installation of roofing from galvanized sheet or rolled steel, both with and without a polymer coating, for public and residential buildings with a roof slope of 7 to 30 °. Roof coverings can also be made from non-ferrous metals. This technological map discusses the technology of metal roofing, in which the connection of individual elements of the coating is performed using folds.

The purpose of the formation of the technological process for this technological map is:

- ensuring the safe movement of workers on the roof and the safe execution of production processes;

- rational use of the simplest mechanisms and devices for roofing work;

- Achieving a high level of labor productivity;

- Reducing the cost of work performed.

2. General provisions

Seam roofing is one of the many roofing systems that reliably protect premises from atmospheric influences. It is the most hermetic system and virtually eliminates the possibility of through corrosion.

Climbing to the roof, moving and lowering to the ground various tools, materials and fixtures is a necessary type of work in the implementation of production operations, which creates additional labor intensity of roofing work. These works belong to the category of work with an increased risk of production factors, and under certain conditions are carried out with the issuance of a work permit.

Lifting, lowering and holding in an elevated position on the roof of various loads (pictures, mechanisms, fixtures, etc.) for roofing, the use of winches and hoists as manual cranes must be carried out taking into account the requirements of GOST 12.3.009 and PB-10-382 -00 .

The basis of a seam roof is a special method of connecting two adjacent sheets of metal using a seam connection. The fold is double and single. Correctly executed fold excludes any leaks. Separate elements of a folded roof are usually called paintings. The edges of the picture are prepared in advance for the seam connection. Fold - a type of seam formed when joining sheets (pictures) of a metal roof (Fig. 1, 2, 3).

Fig.1. Single and double fold

Fig.2. seam roof

Fig.3. Connection of paintings with recumbent and standing seam

Prior to the installation of a metal roof, organizational and preparatory measures must be completed in accordance with SNiP 12-01-2004 "Organization of construction". All installation and related work must be completed, issued with certificates for hidden work in accordance with SNiP 3.03.01-87 "Bearing and enclosing structures". Preparatory work includes:

- verification of compliance with the design slopes of the roof slopes;

- checking the correctness of the crate device;

- sorting and quality control of supplied metal sheets.

The main materials for sheet steel roofing are non-galvanized (black) or galvanized sheet steel roofing. Roofing steel is produced in the form of sheets measuring 1420x710 mm, 2000x1000 mm, 0.4-0.8 mm thick, weighing (depending on thickness) from 3 to 6 kg. Non-galvanized (black) sheet steel is used to a limited extent in construction and in the overhaul of buildings. Roofs from it require frequent painting with drying oil. The most effective use of roofing galvanized steel. It is less exposed to corrosion, its service life is much longer. The surface of galvanized steel must be smooth, without films, bubbles, streaks, with dense and uniform galvanization.

In most cases, roofs consist of two main parts - the carrier in the form of a truss system and the enclosing one in the form of a roofing. With a wooden supporting structure, under a roofing sheet of steel, a crate is usually arranged from boards with a section of 200x50 mm and bars with a section of 50x50 mm. The crate is supported on truss structures with a distance between the rafters of 1.2-2 m. Bars and boards are placed at a distance of 200 mm from each other. With this arrangement in the crate, the foot of a person walking along the slope of the roof will always rest on two bars, which will prevent the deflection of the roofing.

The lathing under the roof of sheet steel must be even, strong, rigid, without protrusions and recesses. Between the control rail 1 m long and the crate, a clearance of no more than 5 mm is allowed. For the installation of a cornice overhang and wall gutters, a solid plank flooring is laid from edged boards 3-4 boards wide (700 mm). The front board of the cornice overhang must be straight and hang from the cornice by the same amount along its entire length. A continuous flooring of edged boards is also arranged under the grooves (up to a width of 500 mm in each direction).

Along the ridge of the roof, two boards converging with edges are laid, which serve to maintain the ridge joint. The durability of the roof depends on the correct arrangement of the lathing, since even a slight deflection of the sheets on it weakens the density of the joints (folds), which leads to leakage and destruction of the coating.

Seam roof connections can be made in various ways. There is another kind of folds - self-latching. They are connected to each other without using a tool. The most airtight and moisture-proof is a double standing seam - this is a longitudinal connection protruding above the roof plane between two adjacent roofing patterns, the edges of which have a double bend.

For the installation of seam roofing, roll technology can be used. Roll technology is a process of manufacturing metal roofing paintings for the entire length of the slope with edges prepared for joining in a double seam on a special blanking machine. Pictures are stacked on a slope, fixed with clamps and connected to each other in a double standing seam using a seaming machine. The tightness of the double seam, where necessary, is ensured by the use of a seal located inside the seam.

3. Organization and technology of work performance

Roofing installation works include the following operations:

- covering of cornice overhangs;

- installation of wall gutters;

- the device of an ordinary covering (covering of slopes of a roof);

- covering of grooves.

The scheme of organization of work during the installation of a metal roof is shown in Fig. 4, 5.

ROOF PLAN

Fig.4. Facade and roof plan

roofing jobs

1 - automobile crane KS-35714K; 2 - cornice flooring from boards; 3 - crate; 4 - inventory platform; 5 - metal stand; 6 - a picture of an ordinary coating; 7 - a picture of a wall gutter; 8 - the border of the danger zone near the building under construction

Fig.5. Scheme of organization of work in the construction of a metal roof

Roofing pictures prepared in advance are lifted to the roof with the help of a KS-35714K truck crane in special containers. To receive them, an inventory collapsible platform and a light stand for storing sheets are installed on the roof.

Covering the eaves begins with the installation of crutches along the overhang, designed to support the paintings. The crutches are nailed to the crate through 700 mm from each other with the removal (overhang) from the edge of the crate by 130-170 mm.

All crutches must be laid with the same overhang, so first the two extreme crutches are nailed, and one of the nails on each crutch is not completely hammered. A cord is pulled between these nails, by which the positions of all intermediate crutches are determined.

Covering the roof with sheet steel is made from pre-prepared sheets called paintings. Pictures can be single and double (of two sheets), connected along the short sides. The latter method is more productive, as it reduces labor costs for connecting sheets on the roof and allows the use of enlarged roofing elements. The preparation of paintings consists in bending the edges of the sheet on four sides for their subsequent connection on the roof with folds. It can be done manually or mechanized on folding machines.

Roofing sheets are usually interconnected along the short side of the sheet with recumbent folds, and along the long side with standing (ridge) folds. When covering the roof slopes, the ridge folds are located along the slope, and the recumbent folds are located across (parallel to the roof ridge), which does not prevent water from flowing from the slopes. Seam joints can be single and double. It is advisable to connect sheets for covering roof slopes with small roof slopes (about 16 °) and in places of the greatest accumulation of water (gutters, grooves) with double folds.

Covering the roof slopes is one of the most labor-intensive operations in the construction of sheet steel roofs. In the complex of works performed on the roof on the installation of an ordinary roofing of slopes, the greatest labor costs fall on connecting paintings with ridge folds, since the length of the latter is twice the length of the recumbent folds, of which half is performed in the workshop when preparing paintings. Usually, the connection of roofing paintings with a comb seam is made by roofers using hammers or with a hammer using a lapel bar. Recently, electric comb benders and comb benders have been proposed and used, which allow performing work without the use of roofing hammers.

The cornice paintings prepared earlier and submitted to the roof are laid on top of the crutches along the overhang of the roof in such a way that their edge, which has a lapel tape, tightly wraps around the protruding part of the crutch. The unfolded edge of the sheets on the opposite side is nailed to the crate with nails with a distance of 400-500 mm between them. The nail heads are further covered with a wall gutter. Pictures of the cornice overhang are interconnected by recumbent folds.

At the end of the coating of the cornice overhangs, wall gutters are laid. Typically, the gutters are located between the water intake funnels with a slope of 1:20 to 1:10. Work begins with the installation of hooks, which are placed along the line marked for laying the gutters and beaten off with a chalked cord. Hooks are placed on top of the cornice paintings at a distance of 650 mm from one another. Hooks should be placed perpendicular to the line of wall gutters and nailed with two or three nails to the crate.

At the end of the work on laying the wall gutters, the roof slopes are covered. Pictures of the ordinary covering of gable roofs (gable) are usually laid, starting from the gable wall (pediment), and hip (four-slope) - from the edge of their skates. The paintings are laid out in strips along the slope of the roof in the direction from the ridge to the gutter. Pictures in each strip are connected to each other by recumbent folds. In this way, several strips are laid, which are temporarily attached at the ridge to the crate with nails (beyond the edge of the bent edge of the ridge). The gable overhang should hang from the crate by 40-50 mm. The overhang is fastened with end clamps, installed every 200-400 mm, which, together with the longitudinal bend of the ordinary strip, are bent in the form of a double standing seam. The gable overhangs of monumental buildings, as well as buildings built in areas with heavy winds, should be fixed in the same way as cornice overhangs, i.e. on crutches with the device of lapel tapes with droppers.

Clamps are nailed along the strip assembled from paintings to the side of the crate at a distance of 600 mm from each other. Then the second strip is assembled and laid in such a way that the folded large edge of the first strip adjoins the small folded edge of the sheets of the second strip. At the same time, adjacent strips are shifted relative to each other by 40-50 mm, so that the recumbent folds of adjacent paintings are spaced apart.

Laying ordinary strips on a slope is carried out with a release of 50-60 mm above the roof ridge to form a ridge ridge. In order to avoid meeting on the ridge of two ridge folds of opposite roof slopes, they are placed apart at a mutual distance of at least 50 mm. Adjacent strips of paintings are first connected with a ridge fold only at the clamps, while they are pulled tightly to the crate, and then along the entire length of the ridge fold.

Following the coating of the roof slopes, the grooves are covered from the ridge to the overhang. The strip of the groove assembled in the workshop and rolled up on the roof is unfolded and laid in place so that its longitudinal edges fit under the edges of the ordinary roofing of the slopes, which are cut with hand scissors along the borders of the groove. Then the edges of the groove are connected to the edges of the ordinary covering with a lying fold, bent towards the groove, with the final sealing of the folds with a mallet.

The scheme of the device cornice overhangs

1 - rafter leg; 2 - crate; 3 - cornice flooring from boards; 4 - picture of the cornice overhang; 5 - crutch

Fig.6. Timber lapel for the device of folds and the scheme of the device of cornice overhangs

After connecting with the ordinary coating, the upper end of the groove, adjacent to the ridge, is cut to the shape of the ridge, and the lower end, adjacent to the wall gutter, is cut parallel to the direction of the gutter, leaving an edge for the fold. Then the groove is connected to the ridge with a ridge fold and with a wall gutter - a recumbent fold, bent towards the gutter (in the direction of the water flow). The folds, which connect the sheets of the groove between themselves and with an ordinary roofing, must be smeared with minium putty.

In order to better drain water from behind the pipe, a triangular cutting (opening) is made on the upper side of the pipe in the form of a gable roof from boards or bars nailed to the crate and covered with sheet steel. Water flowing from the slope of the roof is dissected by cutting and flows down the slopes. The collar formed by the bends of the edges of the paintings should tightly wrap around the pipe shaft and be connected in the corners to the fold.

More efficient is Roll technology. The technology is called so because the roofing paintings are made directly on construction sites from metal delivered in rolls and can be of almost any length. This is what makes it possible to avoid transverse (lying) folds and, accordingly, the main places of leakage. The connection of roofing paintings is carried out, as a rule, in a double standing seam. To ensure complete tightness of the joints, as mentioned above, the fold can be sealed with silicone sealant. The use of roll technology requires modern equipment, including machines for cutting metal, special bending and seaming machines, etc. Roll technology is the most progressive and makes it possible to arrange modern seam roofs both from simple galvanized rolled steel and from galvanized steel with polymer coatings.

SCHEME OF THE DEVICE OF THE ROOF FROM SHEET STEEL

ridge ridge

Fig.7. Seam roof device

FASTENING THE GED EDGE OF THE ROW STRIP

SCHEME OF CONNECTION OF SHEETS WITH A STANDING FOLD WITH THEIR FASTENING WITH A CLASS

1 - clamp; 2 - sheet of roofing steel; 3 - crate

A-d - sequence of operations

Fig.8. Joining roofing sheets with a seam and fixing the edge strip

SCHEMES OF CONNECTION OF THE ROOF TO THE CHIMNEY

1 - cutting; 2 - otter; 3 - crate; 4 - collar

Fig.9. Adjoining the seam roof to the chimney

The most difficult part of a steel roof is the collar around the chimney. It is better to make it in advance - all work can be done below, on a workbench, and the roofing sheet with a ready-made collar can be included in the overall coverage. Roofs made of non-galvanized steel should be primed and painted immediately after installation (at least twice). For oil paints (including when using minium iron), the primer is drying oil with the addition of pigments, for nitro enamels - a nitro primer.

Table 1

Calculation of labor costs and machine time

1.
2.
3.
4.
5.

In the construction market today you can find many different materials that differ from each other in price. It is simply impossible to finally answer the question of what kind of roofing material is the best, since under certain conditions one should proceed from certain advantages and disadvantages. Many homeowners prefer bituminous materials or ceramic roofing, but steel is just as good, and sometimes even a much better solution.

Steel roofing sheet is striking in its diversity. It can take the form of smooth sheets, which are connected by seams, folds, but also occurs in the form of tiles. To create such a material, galvanized steel is used, additionally coated with a layer of polymer. Due to this, roofing sheet steel copes well with corrosion and external factors.

Such sheets of metal are called paintings. A roofing steel thickness of 0.5 mm or more is sufficient to provide high quality home protection. For roofs with a large area of ​​​​planes, rolled steel is used, which allows you to speed up the laying process. For a small country house, it is much more convenient to purchase ready-made, cut sheets.

Fastening is carried out with clamps. All connections have the form of folds, that is, curved seams. They can be single or double, standing comb or flat recumbent. The specific choice depends on the junction of the paintings and the need for waterproofing. Folds are recommended to be additionally treated with silicone sealant.

Steel roof - main types

To date, such a roof can be made of various materials:

Tools and materials for work

The steel roof is laid after certain preparatory procedures have been completed. Necessary:

• check the angles of the slopes, since the roof should have a slope of no more than 30 degrees and at least 16;
• check the strength of the crate, the step of the bars and the reliability of the fasteners. This procedure is especially important, since poor-quality lathing can lead to roof deflection;
• carefully check all steel sheets for dents, cracks, bubbles and other damage.

Then the preparation of the tools that will be needed for roofing begins:

• roofing nails 4 * 50 mm with a special cap for fastening to the crate;
• nails 4x100 mm for fixing hooks and crutches;
• special hooks designed for fixing gutters. Usually they are made from steel scraps 2 cm wide and 42 cm long;
• crutches for cornice overhangs. They are used to fix overhangs (more details: "");
• picture clips;
• machine for bending seam seams (also exists). For laying the roof of a small house, you can get by with a manual machine.

Stages of installation work

Work begins with the installation of crutches along the entire eaves. The indent from the edge is 150 cm, the laying step is 70 cm. All crutches are nailed to the crate. They are needed to support the paintings. So that the crutches do not move, they are first placed along the edges of the eaves. After that, a cord is stretched between them, along which the hotel elements are aligned.

Next, move on to the installation of paintings. This can be done using a variety of tools, but it is best to use a folding machine. The types of fold are distinguished depending on the place of installation: recumbent folds are made along the short side, standing folds along the long side. This allows for good drainage of water from the roof surface.

Roofing sheet steel GOST provides for fastening with folds, both single and double. In places of greatest accumulation of water, only double connections are used.

The finished sheets are attached to the base with the help of clamps, which are nailed with one end to the timber, and the other end into the fold. All clamps are attached at the ends of each sheet. In this case, each sheet is shifted by 5-6 cm so as to separate the recumbent folds on the sides. In an illogical way, the ridge folds are also displaced.

After laying, all excess elements are cut off with scissors for metal. The resulting sections are treated with a primer. The folds, to give them greater tightness, are treated with silicone sealant.

Installation of a steel roof should be accompanied by the following features:

Repair work: what is the specifics?

Repair work on such a roof has a number of features. The fact is that it is very problematic to disassemble a separate section of the roof, the procedure itself is laborious and time consuming. But there is an alternative approach that allows you to quickly complete repairs at a very high level.

Small damages up to 5 mm in size are sealed with sealant (acrylic or silicone) or special red lead grease. Such compositions are applied with a spatula with a layer up to 8 mm thick. In addition, good results are shown by the use of bitumen-based adhesive tape. After repair, the work site is sanded and painted with special paints.

In most cases, such roofs do not need frequent repairs. Damage is often caused by extreme loads or mechanical impacts. For example, the accumulation of snow, above the calculated amount or the fall of a tree branch. Also, in case of careless behavior with the material and damage to the protective polymer layer, the metal begins to corrode, which leads to rust and holes in the roof. Therefore, it is recommended to handle the material very carefully during installation. In addition, regular inspections should be carried out for the appearance of rust spots and accumulations of snow or fallen leaves.

Metal roof device: installation and installation ").

Seam steel roofing is a classic type of roofing in Russia, which has been successfully used for many years and has proven itself to be relatively inexpensive, reliable and durable. A steel seam roof will last at least 50 years.

Advantages of steel roofing

• Light weight. Approximately 4.2 kg/sq.m. with a thickness of 0.55 mm;
• Flexibility and plasticity. Possibility of laying steel tape on radius roofs;
• Full set. Almost all additional elements, accessories and fasteners of the desired color are available;
• geometric stability. Steel coating, compared with copper or titanium-zinc, is less susceptible to deformation due to temperature changes throughout the year.

To create a folded steel roofing, rolled galvanized steel with polymer coatings is used. Depending on the type of coating, the texture and color palette of the roof changes. Seam panels-pictures are made directly on the object. This is a very time-consuming job that requires a high level of roofing skill, but the result is worth the effort.

Properly designed and technologically assembled seam roofing made of galvanized steel is guaranteed to last at least 50 years.

With the range of steel for seam roofing or facades, you can find the links below.

Ruukki

The Finnish company Ruukki, founded in 1960, produces roofing steel with various finishes (Pural, matt Pural, polyester and Purex). Thanks to special developments, Ruukki steel is close to copper in its plasticity, it is suitable for any architectural forms and all types of buildings. Silent and plastic, it does not tear during installation and is designed for a long service life.

from 430 R
per 1 m²

from 570 R
per 1 m²

from 700 R
per 1 m²

from 730 R
per 1 m²

ArcelorMittal

The Belgian company ArcelorMittal is the largest steel company in the world, supplying its products to most well-known brands. The produced steel is a high-quality material with high performance characteristics.

from 470 R
per 1 m²

from 480 R
per 1 m²

Corus

Corus Group is a British steel company founded in 1999 and is currently one of the largest steel and aluminum producers in Europe. Corus produces rolled steel, including coated with polyester and plastisol. These materials have high performance characteristics suitable for the Russian climate. They resist temperature extremes and UV rays well, withstand heavy loads, and also have excellent dirt-repellent properties.