Seam roofing is one of the most airtight as it is installed using a nailless method. Read more about installing such a coating in the article.

Installation of seam roofing

Seam roofing is made from rolled, galvanized steel, non-ferrous metals, as well as polymer-coated steel. And it is called that because the sheets are joined using the seam method, when they are fastened together without nails, screws or other devices. The result is a perfectly sealed roof covering.

Freight transport is used to transport sheets (paintings). When unloading, the sheets are transferred strictly in a vertical position and one at a time. To lift them to the roof, use a ladder, beams or boards that are installed between the ground and the roof.

A little more theory

The minimum slope of the slopes at which it is permissible to use thin sheet steel for roofing is 7°, but the optimal one is 12-14°. The sheathing pitch should not exceed 40 centimeters. You need to cut metal using metal scissors on the ground. Seam roofing can be performed on both continuous and sparse sheathing.

For installation you will need: a hammer, a mallet, pliers, roofing mandrels, roofing frames, metal scissors.

Let us consider in detail the technology of installing a seam roof.

Instructions for installing a seam roof with your own hands

Installation begins with the installation of cornice strips on the eaves overhang. They are fastened roofing screws in increments of 30-40 centimeters end to end. Next, Before installing the sheets, soundproofing tape is spread under each of them on the roof. The edge of the tape at the bottom and top should be at the level of the second beams of the sheathing.

Fastening sheets

You can start installation from any edge of the roof. However, sheets from some manufacturers need to be fastened only from right to left.

The first sheet is laid 10 centimeters above the cornice. If the sheets have a bottom bend (dimensions have been taken in advance and the sheets are folded in in the right places), then they rest against the cornice. You can also bend the edges of the sheets after installation; more on that later.

The sheet must be aligned vertically and horizontally as accurately as possible. And only then start fastening. There should be a right angle between it and the cornice. This can be determined using a large square. Correctly installed first sheet is the key to successful installation of subsequent sheets.

There are two types of sheet fastenings: using clamps and self-tapping screws. Some manufacturers' products have holes on the sheet into which self-tapping screws are screwed. They are overlapped by subsequent sheets, the edges of which are folded. In another case, if there are no holes, clamps are used. Lock connections may be different.

Let's look at fastenings using clamps.

The sheet is attached like this:

1. First, clamping clamps are secured with nails or self-tapping screws to rafter leg on the pediment
2. After this, the opposite ends of the clamps are bent so that they securely hold the sheet
3. On the opposite side of the sheet, clamps are also used for fastening, only of a smaller size. The step between the fastenings is 50-60 centimeters, or through two boards (beams) of the sheathing

Video on installation of seam roofing

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Seams are special seams connecting two metal sheets into a single sheet. Not only roofing is made in this way; seam seams are used in the manufacture of metal buckets, drainage systems, pipes, gutters and many other types of metal products. These seams are also found on decorative elements, costume jewelry.

The name comes from the German fold (Falz) - translated as groove. In a broader sense, it is used to name the place where the seam is bent, connecting two metal sheets. Folds can be manufactured at the factory bending machines or manually. The first method guarantees smooth surfaces and significantly speeds up the process of re-roofing. Manual folding is considered the most difficult roofing work and is not performed by all masters.

Depending on the spatial position and number of bends, seam joints are divided into several types.

Seam connection type	Brief description of manufacturing technology and performance characteristics
	The simplest and most used type of roof lock. Reminds me of a tongue/groove joint. The edge of one sheet is bent at an angle of 90°, the edge of the second is made with two folds - the first at a right angle, the second at an angle of 180°. Such a connection can be prepared on the ground; on the roof, the sheets are inserted into each other and finally folded to create a tight seal.
	More complex connection. Provides increased tightness performance. Rarely used on roofs, more often used during the manufacture of various metal containers or jewelry. The end of one sheet is bent twice, the first time at a right angle, the second time at an angle of 180°. The end of the second sheet is folded three times. The first time at a right angle and twice at an angle of 180°.
	A simple connection, used as a technological seam of various products for bulk materials. Advantages - ease of execution, the ability to bend folded sheets across the seam in an arc or under different angles. All standing seams do not allow such bends.
	Sealed seam, used during the manufacture of containers for storing liquids. The number of bends is the same as with a double standing one, the difference is that it is not positioned vertically, but is pressed against the sheets.

Standing seams have high bending strength, recumbent joints cannot withstand vertical loads. All hems of double seams are done on two sheets at the same time. The roofer must first calculate the width of the roof strips and install the sheets with the required offset.

The steel sheet is fixed to the sheathing with a clamp. This is a metal strip made from the same material as the roofing. The clamp is screwed to the sheathing, then bent at an angle of 90°, goes around the fold and bent again, but at an angle of 180°. This technology makes it possible to attach sheets to the sheathing without making holes in the roof, on folded sheets industrial production does not apply.

For seam roofing, the industry produces specially rolled metal with a given profile, which greatly speeds up and simplifies the process of covering the roof. In addition, factory profiles have perfectly smooth surfaces and same sizes, which significantly improves the appearance of the coating. Ready-made industrial sheets are called paintings or folded sheets.

There are two types of paintings.

1. Starters. Installed first on each side of the roof slope, they have only two spikes.
2. Privates. Used for the main covering, connected to each other in a tongue/groove pattern.

To roll up folds, hand tools or mechanical seaming devices are used. Manual seaming makes it possible to connect not only straight folds, but also elements of complex configurations. The seaming machine gives an excellent look and quality of connection, but can only be used on straight sections of the roof.

The width of the panels is standardized, the length is selected by the customer, taking into account architectural features rafter system and roof dimensions.

Operational parameters of seam roofing

Price for a snow guard for a seam roof

Snow guard for seam roof

Seam roofs are not widely used among developers; they are most often found on exclusive buildings or homestead extensions. The fold makes it possible to connect sheets together without the use of traditional hardware, which eliminates the formation of holes on the surface. It is in these places that metal corrosion occurs most quickly, especially if rubber gaskets have lost their original sealing properties.

An important quality of a seam roof is the absence of fastening elements on the surface (in particular, transverse connections when creating a roofing sheet of any length), which eliminates leaks

Such roofs can only be installed by professionals who have great experience making various seams and complete set special tools and devices. The advantages of a seam roof include the following parameters.

1. Light weight. Weight square meter coating does not exceed 5–6 kg, data varies depending on thickness. The low weight makes it possible to construct a lightweight rafter system, which, given the high cost of lumber, significantly reduces the estimated cost of roofing work.

   

   Another advantage of a seam roof is the low weight of the entire structure, including sheathing and other elements.

2. Minimum price. For seam roofing, you can buy rolled sheet steel. It is considered a raw material for the manufacture of metal tiles and metal profiles. Accordingly, rolled non-profiled steel is much cheaper than finished products.

   

3. The complete absence of holes eliminates mechanical damage to the integrity of the paintings. It is in the holes that corrosion processes quickly appear. In the future, leaks form here and the roof has to be replaced or repaired.

   

Like everyone else architectural elements, standing seam roofs also have their disadvantages.

As for other common problems (noise, high thermal conductivity, accumulation of static charge), they are exactly the same as with metal tiles or profiled roofing sheets.

Prices for rebate frames

Rebate frames

What metals can seam roofs be made from?

The main requirement for metals is that they should bend easily without the formation of microcracks. It is known that microcracks gradually expand, the reason for this phenomenon is metal fatigue. An increase in the size of microcracks can cause leaks. According to their own physical characteristics The following metals are suitable for standing seam roofing.

Copper

The most expensive seam roofing material is used only on exclusive houses, during the reconstruction of historical buildings and the construction of religious buildings. Over time, the copper surface oxidizes and becomes covered with a thin protective film of the original color scheme– patina. This gives the roofs special prestige and perfection.

Aluminum

The service life is practically unlimited. The surface of aluminum is also coated with a thin layer of oxide, which prevents further aging. The metal bends and stretches easily, which makes it possible to use it on roofs with very complex geometries.

Zinc-titanium

The alloy, specially adapted for construction needs, is characterized by high corrosion resistance and beautiful appearance. It has a unique self-healing property - all small scratches are healed. The metal can be stretched without deteriorating its original physical properties.

Galvanized steel

Structural steel is used for its manufacture, and the zinc coating is done using the hot method. This manufacturing technology increases the service life of the roof. For additional anti-corrosion protection and improvements designer look surfaces can be coated with polymer paints.

Installation of click seam roofing

The click-seam connection differs from the ordinary one in that it can be sealed tightly without using special equipment and tools. The plant provides unique profile bends, making it possible to speed up the process of laying roofing material.

Depending on the type of roofing, a roofing pie is made. For insulated roofs this is a rather complex and expensive structure; installing cold roofs is much faster and easier.

Compliance with the technology for installing seam roofing allows you to prevent corrosion of the coating, its deformation and sagging. Right installed material will serve its owners for many years. We’ll look further at how to properly install a seam roof with your own hands.

Seam roofing: features and advantages

Seam roofing is distinguished by a special installation technology, which creates a reliable seam lock that prevents water leaks. The appearance of the roof is particularly attractive and gives the building an aristocratic and original appearance.

The roof itself consists of separate panels connected to each other using folds. For their manufacture, sheet or rolled steel is used, always galvanized. To increase the durability of the structure, it is treated with a special coating of non-ferrous metals such as copper, aluminum, zinc, pural or plastisor. The most optimal and durable option is copper. Despite the high cost of such a roof, it has an amazing appearance and good performance characteristics.

By connecting roofing sheets together, it is possible to obtain a connection called a seam. There are four types of such connections:

• single type;
• double type;
• standing type;
• recumbent type.

The first option is relevant if the roof slopes are located at an angle of more than fifteen degrees. The second option is particularly waterproof and durable, although its arrangement will require more material and effort, but the result is worth it. Standing seams are relevant for joining longitudinal strips.

Among the advantages of a seam roof, we note:

• the ability to use various coatings, which give it a unique shade and originality;
• thanks to seam joints, the roof does not leak
• does not require additional mounting holes, so the roof becomes resistant to changes in temperature;
• a variety of installation technologies, materials, variations in laying sheets or rolls, allows you to create an interesting roofing covering that will harmonize with any building;
• the presence of a smooth surface ensures rapid drainage of water and snow;
• due to the fact that the material is quite flexible, such a roof can be installed on any type of roof;
• the light weight of the structure makes it possible not to install a rafter system;
• such a roof is easy to maintain and repair;
• Duration of operation is another important advantage of this type roofs.

When installing a seam roof, you also need to learn about its disadvantages, such as:

• the need for special equipment that greatly simplifies the execution process installation work;
• steel roofing has high thermal conductivity and therefore requires additional insulation;
• the roof needs to be equipped with additional components that reduce its noise performance;
• in order to protect your home during a thunderstorm, it is necessary to install a lightning rod and grounding;
• On a smooth surface, it is necessary to install snow detainers, since avalanches will fall to the ground during heavy snowfalls.

Types and technology of seam roofing

The most durable copper roofing in use, it will serve its owners for more than one hundred and fifty years. In addition, this type of roof has an attractive appearance, since it has a special textured pattern that imitates various materials. However, the cost of such a roof is quite high, although it quite pays off during operation.

Aluminum roofing is lightweight, corrosion resistant, mechanical damage and various types of loads. The service life of such a roof reaches one hundred years. The cost of such a roof is an order of magnitude lower than a copper one, but the performance characteristics are also at a high level.

Also, seam roofing is made of titanium-zinc coating, which is distinguished by its prestigious appearance, reliability and durability. Besides, distinctive feature of this material is high level its plasticity. After a certain period of use, the roof becomes covered with a patina, which makes it even more elite.

The most affordable material for making seam roofing is ordinary metal. The great demand for this type of roofing is explained primarily by the affordable cost of the coating. The service life of this structure reaches 55 years. You can choose the color and appearance steel. In addition, the zinc coating protects the roof from corrosion and destruction.

Seam roofing - installation technology

Seam roofing differs not only in the materials from which it is made, but also in the technological aspects of its installation. In the process of making roofs, materials are used in both sheet and roll versions.

Using sheets - classic version, which unfortunately is losing popularity. The main rule of any installation of seam roofing is to create attic space special conditions that prevent the formation of condensation on the roof, which destroys it.

An innovative way to install a roof is to use roll materials. This installation technology is characterized by the presence of higher quality seams, which are easily installed by specialists.

Among the advantages of roll technology for installing seam roofing, we note:

• installation of not only steel sheets, but also material with a polymer layer, which has better performance characteristics;
• the use of a standing double seam, ensuring a high degree of tightness of materials;
• the use of technology in various areas of roof installation, regardless of the roof slope and its shape;
• speed and ease of work, thanks to the mobility of the equipment used in roof installation.

Tool for installing seam roofing

Correct use of the tool during installation work ensures half the service life roofing. The main tool for constructing a clamp is used in any installation case, both in roll and sheet. There are two types of tools used when rolling the seam:

• mechanical equipment;
• electric type tool.

The first option involves using a set of pliers, which contain two frames that cover the folds. With their help it is possible to create single and double folds.

The electric machine allows you to speed up the work several times, and after rolling, it automatically stops at the final section of the roof.

Also, when installing a seam roof, you will need the following tools:

• hammer;
• pliers;
• metal scissors;
• mallets;
• drills and screwdrivers;
• level and other measuring instruments.

Additional tools used during the roof installation process depend on individual characteristics building and method of installation of roofing materials.

Seam roofing: production and installation

To begin work on installing a seam roof, you should choose a sheathing, for the manufacture of which a steel profile, board or wooden beam. The main requirement for the sheathing is its maximum evenness and absence of recesses.

Seam roof installation instructions:

1. Initially, an insulating coating is laid on the surface of the trusses. The presence of light sheathing will ensure sufficient ventilation of the under-roof space. The interval for laying the sheathing is 40 cm.

3. Before installing the sheets, install the eaves part of the roof.

4. Also install on the ridge area support board. In order for the joints to be evenly spaced on the roof, the first and last sheets should be cut in relation to the dimensions of the roof.

5. Install a continuous boardwalk on the valley.

6. The sheets are aligned with an overlap of 4 cm. To fix the sheets on the eaves area, the top sheathing is used.

7. At the end sections of the roof, the roofing material is fixed using self-tapping screws and washers, between which sealing gaskets are installed.

8. Snow barriers are laid at the joints between roofing sheets. To perform longitudinal joining of sheets, also use overlap.

Features of installing a copper seam roof

The ridge and ribs on a standing seam roof must be straight. If wood is used to make the sheathing, then do not forget to coat it with an antiseptic composition.

Before starting installation work, you should fix the cornices along the lower edges. Also, drainage system, installed on initial stage. The valleys are fixed on the sheathing, and an anti-condensation film is installed on the rafter system, providing waterproofing.

Before starting work on the roof, measure its slopes. Rectangular slopes should have equal diagonals. When arranging longitudinal joints, the sheets are fixed in the direction from the bottom to the top. If the length of one slope is more than six meters, then it is assembled from several parts.

The sheets are installed with a slight overlap. Installing copper roofing, is destroyed by using a seaming machine, which significantly improves the tightness of the joints between the sheets.

The service life of a copper roof is more than a hundred years, however, in order to ensure that this condition is met, the roof is installed on a continuous deck.

When arranging a deck for a standing seam roof, you should be guided by the following recommendations:

• It is imperative to ensure that you have a special ventilation gap, which allows you to remove condensate formed inside the roof;
• thus, the sheathing prevents corrosion metal parts and damage to wooden sheathing;
• the sheathing should help reduce noise generated during rain.

A solid base is also installed if the roof slope is less than fourteen degrees. In order to improve the tightness of the connection between the sheets, after rolling the seams, use silicone sealant.

Installation of a self-latching seam roof

In order to create a self-latching roof, galvanized steel sheets are used. The sheets must have the shape large canvases, which are connected to each other using special grooves.

The most popular rebate options are recumbent and standing versions, used in longitudinal and transverse connections. A self-latching roof is installed much faster and easier than a standard seam roof.

In addition, this type of roofing is distinguished by a variety of color and texture shapes. Therefore, you can choose best option, suitable for a specific building.

To arrange connections between sheets, no special equipment is required, and all work can be carried out independently, without the involvement of specialists. In addition, upon completion of installation, an ideal coating is obtained in the form of a continuous flooring that is absolutely impermeable to moisture.

This roofing option is suitable even for a roof whose slope angle is 8 degrees. Among the advantages of a self-latching roof, we note:

1. Possibility of installation on various types of roofs.

2. Long service life.

3. Thanks to a special installation technology, reliable connections are ensured, and the seams are durable and tight.

4. Seam roofing is characterized by high load-bearing capacity, good resistance to the external environment.

Therefore, when choosing a seam roof for a home that you plan to install yourself, we recommend choosing the self-locking version, since this design does not require the use of special equipment to obtain a high-quality connection between the sheets. Repairing a seam roof will not cost special labor, since if certain of its elements are damaged, it is enough to replace them.

Seam roof installation video:

The roof performs a very important function, regardless of its type and purpose of the building. It is this that protects the house from the penetration of moisture, snow, wind, and also retains heat inside the living quarters. Exists large number roofing materials that help the roof perform its function, but the seam type has a special place. And there are reasons for this - the reliability of the design, its long service life, and the ability to install it yourself.

Tools for installing seam roofing

A folding hammer is needed for working in hard-to-reach places

Scissors for cutting metal. They can be right or left, which indicates the direction of the cut.

Manual "frame". Its length is 22 cm. It corresponds to the processing step of the connecting seam.

The length of the fold frame corresponds to the seam processing step

Shovel-mandrel. As a rule, it is made of steel.

A mandrel spatula will help you bend the edges of paintings without using a machine

Pliers that are used to open damaged folds.

Chisel, pliers, file.

Screwdriver and drill.

Video: sheet bending machine for seam roofing

Seam roofing material

Seam roofing involves the use of metal sheets. More recently, it was only galvanized steel, which still serves some home owners due to its resistance to corrosion. Now the list for arranging a seam roof is much wider:

1. Galvanized steel with polymer coating. It protects the folds from the harmful effects of ultraviolet rays on the metal, and also performs an aesthetic function, because the tone of the material can be matched to the color of the overall landscape design idea.

   Galvanized steel with polymer coating can be of any color

2. Copper. As a rule, it is produced in rolls. The material can be pure or with a textured pattern. The latter most often imitates the relief of tiles or other roofing material. A copper seam roof has a long service life, in some cases reaching hundreds of years. In addition, it is copper that makes it possible to connect metal sheets not only with the usual folds, but also by soldering.

   A copper roof has a typical shade for this metal

3. Aluminum. This material is characterized by special softness. In some ways it is similar to copper sheets; in particular, it is produced in rolls and can have a pattern. It has a long service life, can reach 80 years. The advantage of aluminum is that it is not susceptible to corrosion and does not require painting or coating with any other similar material. Also, aluminum is absolutely not afraid of temperature changes, which means it can be used in areas with difficult climates.

   Aluminum is absolutely not subject to corrosion

4. Zinc-titanium. A relatively new metal material. Produced in both rolls and strips. It has one significant drawback - excessive fragility, which makes the installation process a little more complicated. Zinc-titanium is incompatible with other metals, as well as with some types of wood, so the range of application of the material is limited. To work with it you need a special tool and some skills. In addition, it is forbidden to work with it at air temperatures below 5 degrees. But there are also advantages of zinc-titanium: long service life and corrosion resistance.

   Zinc-titanium requires extreme care during installation

A metal sheet with curved edges for a seam roof has a very unusual name. Experts call them paintings.

Laying a seam roof with your own hands

You can make a seam roof with your own hands, provided that the technology is fully followed. It is equally important to properly prepare the roof for installation.. This process includes:

1. Installation of sheathing. Before installation, all wooden elements must be thoroughly treated with antiseptic agents and mixtures that prevent rotting and burning. The type of sheathing depends on the material used. For galvanized steel it should have a pitch of 20–25 cm, for copper it should be solid. In the first case, additional boards are laid along the edge of the roof; there should be several of them and they must be fastened without gaps. Similar masonry should be placed along the ridge joint.

   The sheathing for a seam roof should be installed with a minimum pitch or be continuous

2. Preparation of material. This should be done even before the metal sheets are lifted onto the roof. Cut the material according to the drawings made to create a pattern on the roof. Additionally, you need to prepare elements for junctions, overhangs and other roof elements. You should also take the edges that are needed to securely fasten the standing seams. For arranging a seam roof can be used different types connections: single and double standing, single and double lying. Their choice depends on the angle of the roof. For example, if it is 15 degrees, then you can use a single standing type of connection. On roofs with a lower slope, it is recommended to use a double standing type of connection. When using, this step is not necessary.

   Each type of seam roof connection is suitable for a certain slope of the slopes and the junction point

It is not recommended to take paintings with uneven edges or curved ones for work. Such a roof will lack aesthetics.

Seam roofing technology

Technologies do not stand still. This also applies to the method of laying seam roofing. At the moment, the so-called roll technology is used. Its peculiarity is to create a picture along the entire length of the roof. In this case, the rolls are lifted onto the roof with the edges already prepared for fixation, and this greatly simplifies the installation process.

Metal sheets are attached directly to the sheathing using clamps; it is advisable to use so-called wandering clamps, which significantly increases the reliability of the fastening.

It is considered more reliable to use a floating clamp for a seam roof

In problem areas, it is recommended to use a double folded edge. This applies to valleys, gutters, valleys and other places where snow and water can accumulate. Recessed seams can be used if you want virtually no visible seams on the roof. For roofs with a slope angle of more than 25 degrees, it is recommended to choose a corner standing seam, for which you just need to correctly bend the upper edge of the metal sheet.

Video: installation of click seam roofing

Stages of installation of a seam roof

The process of laying a seam roof is as follows:

1. Installation eaves overhang, after which you need to install a drainage system in the form of gutters. They should be installed at a slight angle. This will allow water from the roof to flow by gravity to the funnel.

   You need to start installing a seam roof by installing a cornice overhang

2. Laying paintings on slopes. The finished sheets must be laid out on the slopes in a vertical direction, starting from the ridge to the lower edge of the roof. Secure the strips together using the selected type of connection. Temporarily, metal strips can be connected with nails almost at the very ridge.

   Seam roof paintings should be laid in a vertical direction

3. Attaching sheets to the sheathing. For this you should use clamps. They must be made of the same material from which the roof covering is made. Metal sheets must be laid in such a way that they rise 5–6 cm above the ridge. This protrusion will serve as the material for forming the ridge ridge.

   The paintings are secured using clamps

4. Sealing joints. All junctions with walls and groove connections must be treated with silicone sealant. This will prevent leaks in these areas.

Video: do-it-yourself seam roof installation

Installation of seam roof elements

After laying the metal sheets, you can proceed to the installation of roofing elements, namely the valley and ridge.

To install the first element you need:

A special metal pad is suitable for the skate. It has curved edges, making it easy to connect to metal roofing sheets. The ridge can be ventilated or unventilated, and the first option is preferable, since this will save on installing aerators to prevent condensation under the roofing material.

You can make a ridge for a seam roof yourself

Video: valley liner

Errors in installing a seam roof

When installing a seam roof yourself, errors are possible. The most common are:

1. Large pitch of sheathing. Ideally it should be continuous. This will prevent deformation of the metal sheets during roof operation.
2. No processing wooden elements roofs with antiseptic agents and anti-rotting mixtures. Ignoring this rule will reduce its service life. Despite the strength of metal roofing, an unprotected roof will only last as long as the sheathing.
3. Lack of ventilation clearance in the roofing pie. This can lead to condensation accumulating under the paintings, which will cause corrosion, since all the protective layers are on the outside.
4. Using fasteners made of metal that is incompatible with the metal of the roofing material. If you use copper for coating, then the clamp must also be copper, otherwise the seams will come apart.
5. Using a simple clamp during installation long paintings. Metal expands and contracts under the influence of temperature changes, and a simple clamp is not able to withstand this. Therefore, it is recommended to use a floating element that has a free movement reserve.
6. The use of a single method of attaching paintings in difficult places, which leads to deformation and divergence of the seam.

Video: mistakes that can be made when installing a seam roof

How to properly disassemble a seam roof

When repairing or replacing the seam covering, it will need to be dismantled. But it is very important to disassemble it correctly. This must be done in a certain sequence:

• coating around chimneys and ventilation pipes;
• windows, if they are on the roof;
• ordinary metal sheets;
• grooves;
• overhangs.

The seam roof is disassembled down to the boundary grille, if there is one. Everything after it needs to be removed from the attic. For dismantling it is worth taking special tool- pincers. This must be done carefully, because the material can be reused.

A long service life is possible only if the installation technology is followed. Therefore, in advance you need to carefully understand all the nuances associated with seam roofing and prepare a special tool.

In the construction of private houses and cottages, seam roofing has recently begun to be used more and more often as the most optimal roof option for any one- and two-story building, observing the points of SNIP (building codes and rules for conducting construction work).

Folding is a specific technology for laying metal sheets on the roof, the nodes of which are connected in a special way using a machine (the details can be seen in the photo below).

What is she?

Seam roofing is also used in the construction of private residential buildings, primarily due to the availability and durability of the material.

The technology of seam roofing originated in Germany, and it was from there that this definition came to us (from the verb “falzen”, which means “to bend” in German).

Also, in addition to the method itself, a special tool for standing seam roofing and a machine were developed to ensure quality work, because bending metal with bare hands, creating, for example, a dome, will not work.

Nowadays buy quality device To make a seam roofing pie is not difficult, a huge variety of equipment is present in the domestic and foreign construction equipment markets, and instructions in understandable language complement such a device.

The seaming and repair of a seam roof itself, although they sound complicated, generally do not require specialized skills and abilities, a little practice, and even a person who is not knowledgeable in the construction business will be able to perform this procedure efficiently or make a dome as in the photo below. The main thing is to comply with the points of SNIP.

You can verify the quality of the work over time, if the sheets are fastened securely and in compliance with SNIP, moisture will not penetrate into the home.

You can install a seam roof or create a dome on construction site, using the machine, and directly - on the roof itself.

Classification of seam seams and types of materials used

There are several types of seam seams: lying, standing, double and single. The installation technology largely depends on the type of seam.

Standing seams connect the side edges of the steel strips running along the slope.

The folds are made using a special electromechanical seaming device shown in the photo.

The most optimal and reliable type of seam seam is a double standing seam - in this case, the tightness will be maximum, which will not allow even a drop of moisture to leak out.

When creating a seam roofing covering using a machine, several components can be used.

Non-ferrous metals, namely copper, aluminum or zinc-titanium alloy. Over time, the red color of the roof turns into brown, and then into matte black.

A standing seam copper roof can be covered protective layer patinas, this technology will extend the service life of the roof and protect the original color, protect our solid dome from damage and corrosion.

In other words, the layer of patina has turned the copper roof in the photo below into an almost invulnerable material.
Because of this feature, copper is the most popular among roofing materials.

In practice, there are cases where a copper seam roof, protected by a patina (a special machine was used during installation), has served for more than a hundred years.

In addition to the long service life metal roof made of copper is popular for the following reasons:

• The seam surface will have absolutely no operating costs. After the work is completed, there is no need to paint or clean the surface using expensive devices and construction equipment; the roofing cake will be protected from exposure to adverse weather conditions;
• Copper is harmless to the human body, the material does not emit harmful substances;
• Thanks to high rate Due to the plasticity of copper, repairs to seam roofing are quick and easy; the metal can be melted.

Along with copper, folding is done using polymer materials, while observing SNIP (shown in the photo below).

The seam surface consists of several layers: steel, zinc, primer, a layer of paint and the polymer itself.

This combination of layers was selected using many years of experience and practice, all components perform their specific functions, repairing a seam roof, the instructions for which are available to everyone, is quite simple.

It should be remembered that not all polymer coatings have the same properties, according to SNIP.

Each material has its own indicator of the impact of ultraviolet light on the coating, its tensile strength at different temperatures.

Next in popularity is profiled coating.

Using the machine, giving metal sheets The wavy shape is due to decorative purposes, making the coating look beautiful (you can see an example in the photo below).

Such sheets can be produced using polymer products, but they are not always included in the composition.

The technology of polymer profiled coating will allow you to create the following roof shapes:

• Trapezoidal seam roof;
• Regular, rounded metal roof;
• Sinus-shaped seam roof.

Corrugated sheets differ in the width of the finished profile, the conditions of use, and the shape and height of the corrugation.

A roofing pie of this type can be suitable for both large production and offices, and for arranging private housing; you can even create a dome for an urban building in compliance with the requirements of SNIP.

Among non-standard shaped buildings (an example is a dome), builders most often use aluminum.

This element has a flexible base and excellent resistance weather conditions and corrosion, which is important for urban buildings.

If the required amount of this flexible metal is available, construction organizations can repair the seam roof and install it using a machine; depending on the requirements, you can make, for example, a dome. Also, the roofing pie can take any other shape (the most common ones are shown in the photo below).

Also, using folding technology, you can achieve different reliefs.

Aluminum performs equally well in any form; even decorative figures will look neat and elegant if all the work is done by qualified professionals.

The aluminum seam coating itself forms a special protective film, protecting the material from environmental influences.

In this case, special attention should be paid to free access of air to the material.

In addition to good corrosion protection, aluminum does not transmit ultraviolet radiation and does not burn. A high-quality DIY aluminum seam roof will last for several decades!

The video below shows the installation of a seam roof.

Recently, the technology of seam coating using clamps has become in demand.

A clamp is a special curved device with which a sheet of steel is attached to the sheathing.

The convenience of the clamp is that it is attached to the sheets with ordinary self-tapping screws, which compensates for the lack of special holes in the roofing material.

How to properly lay a seam roof?

The list of works is as follows:

• To begin with, install rafter system in compliance with the requirements of SNIP. The system elements are treated with an anti-ignition agent, as well as an antiseptic. At this stage, the areas of greatest and least load planned in the future are calculated;
• A soundproofing and waterproofing membrane is installed;
• It is necessary to form lung system access of oxygen to the layers of the seam surface. For this purpose, special holes are created in the cornice and ridge;
• The sheathing is laid under the seam roof, which will subsequently provide a ventilated space;
• The comb is installed;
• Sheets of metal are laid overlapping, and a self-latching seam roof is installed. In this case, the sheets are joined on the roof itself, using a special device;
• On open spaces Aprons are installed, consisting of material identical to the rest of the coating.

It should be remembered that seam roofing can be installed if the roof slope is at least 7 degrees, in accordance with the requirements of SNIP.

If the degree is even lower, then the material can be deformed, and leaks form at the junction of metal sheets.

When cutting part of the coating, the corners of the cut must be coated with a substance that protects against corrosion.