Seam roofing can be made of either sheet or rolled metal. Its peculiarity is the presence of a special lock on the edges of the sheets - a fold, with the help of which they are connected. When creating a fold, the edges of one sheet are folded in a special way and cover the folded edge of another sheet. To obtain a reliable and tight connection, a special tool is used to seal the joint.

Seam roofing: its features and characteristics

The seam roof not only reliably protects the building from negative impact atmospheric precipitation and other external factors, but also provides it with a solid and attractive appearance. Compound roofing sheets It turns out durable and provides an airtight coating for many decades.

Seam roofing is a reliable and airtight coating and gives the entire building a presentable appearance.

A little history

At first, seam roofing was made only from copper sheets. This is due to their resistance to corrosion, as well as their softness, which made it easy to work with such material. The only drawback of such a roof was its high cost.

With the development of metal processing technologies, sheets began to be made from plain and galvanized steel, which made them available to ordinary people. Nowadays copper roofing is also used, but rarely - due to the high cost of the material. Nowadays it is popular, which allow you to install it yourself, without the use of special tools and equipment.

At first, the metal strips were protected from corrosion only by paint, but this was enough for several years and the roof had to be painted again. Over time, galvanized iron appeared, its service life increased, but the cost of the material also increased. Today effective and reliable anti-corrosion protection for steel is a polymer coating. It not only reliably protects the metal base, but also allows you to make a roof different colors. Cost of material from polymer coating lower than galvanized sheets.

Characteristics of seam roofing

In Europe, seam roofing has long gained well-deserved popularity, but here it is just beginning to gain popularity. Before we begin to describe the technical characteristics of a seam roof, you first need to understand the terminology used by specialists:

• fold - special lock connection, providing high tightness. It is repairable;
• paintings are elements in the form of sheets or strips of metal that are connected to each other using locks;
• clasp - a fastening element with which paintings are fixed to the roof sheathing. It can be movable (for sheets longer than 6–10 m), allowing to compensate for the expansion of the metal, and fixed (for sheets less than 6 m long).

The seam or fold can be standing or lying, double or single. To create a transverse connection, a standing seam is used, and for a longitudinal connection, a lying seam is used. The seam can be self-latching, but if it needs to be rolled up, then special devices or tools are used for fixation and sealing. Greatest protection from moisture and maximum sealing of the seam is ensured by a double design.

The longitudinal connection is made using a standing seam, and the transverse connection is made using a rebate

The main advantages of seam roofing:

• absence of holes in the metal, ensuring greater reliability and durability;
• high moisture resistance of the seam;
• light weight, which eliminates the need to create a reinforced rafter structure;
• versatility - the material is suitable for covering roofs of any configuration, both flat and complex shapes;
• a wide selection of colors of materials, allowing you to choose such a coating to suit any home design;
• non-flammability;
• maintainability and ease of maintenance.

This technology also has its disadvantages:

• if you have not purchased sheets with self-latching elements, installation can only be performed by qualified roofers with special tools;
• since the surface is metal, it must be properly and efficiently insulated;
• it is necessary to ensure good sound insulation, since when it rains, noise will be heard in the house;
• since metal accumulates a static charge, lightning rods and grounding must be installed to protect against lightning;
• Since the roof is smooth and slippery, accumulated snow easily rolls off it, so it is necessary to install snow guards.

Before purchasing, please make sure that technical specifications material meet your requirements, since only a competent choice will ensure its reliable and durable service.

Video: advantages of seam roofing

Material for seam roofing with description and characteristics

To create a seam roof, both rolled and sheet metal are used. Typically its thickness is 0.5–0.7 mm, which makes it possible to make a hermetically sealed lock and provides required strength and rigidity.

Most often, the following metals are used to make a seam roof:

1. Steel. It can be galvanized or not galvanized, require additional painting or be coated with a polymer material. The service life of the roof will depend on the thickness anti-corrosion coating. Most often, metal is coated with polymers, but their disadvantage is that under the influence of solar radiation the metal quickly loses its original color.

   Seam roofing is most often made from thin steel sheet

2. Aluminum. This metal has high anti-corrosion resistance and does not heavy weight. Such sheets are attached only to floating clamps, since aluminum has a high expansion coefficient. Typically the sheet thickness is 0.7 mm.

   Aluminum sheets have high anti-corrosion resistance and a significant coefficient thermal expansion, so they are installed only on clamps

3. Copper. This metal is lighter, more beautiful and softer than steel, so it is easier to cover relief surfaces with it. At first the sheets shine in the sun, but over time the copper oxidizes and darkens, and then becomes covered with a noble greenish coating - patina. Scratches are very noticeable on polished metal, so you need to be very careful when installing it. The main disadvantage of copper is its high cost, but it is fully compensated by its long service life.

   Over time, copper sheets oxidize, causing them to first darken and then become covered with a patina.

4. Zinc-titanium. It's comparative new material, which consists of zinc, titanium, aluminum and copper. Over time, it does not lose its original appearance. If necessary, it can be easily repaired, for example, soldered with tin. The main disadvantage of zinc-titanium roofing is its high cost. In addition, it is very capricious during installation, so only specialists should install such a roof. Zinc-titanium paintings are laid on a continuous sheathing, and they should not come into contact with copper, steel and wooden elements made of oak and larch. Waterproofing is not installed for this roof, and it can only be installed at air temperatures above 7 o C.

   Zinc titanium is modern material, maintaining its protective properties throughout its entire service life

Seam roofing tool

To carry out the installation of a seam roof, you must have, without which it will not be possible to complete the specified work. When using self-locking folds, you can do without additional tools, since to fix the seam it is enough to press it well.

Roofing hand tools

Any professional has up to 40 tools in his arsenal that he needs to do the job well. Manual roofing tools are used for rolling up horizontal seams, roof connections to roof windows, chimneys, ridges, etc. To install a seam roof, you will need the following tools:

In addition, you will need a special hand tool called frames or haps. It is used to create a double standing seam in two steps. One of the most popular manufacturers of such tools is STUBAI-Tooling Industries (Austria).

This specialized roofing tool is called a "frame" and is used to create a double standing seam

Semi-automatic seaming machines

Using a semi-automatic tool, installation is easier and faster. It allows you to create a double standing seam. Using such a tool, work is completed quickly, the quality of the seam is uniform, and depending on the settings, you can work with metal of different thicknesses. Seaming machines are most effective when laying roll material on long slopes, and they do not damage the polymer coating.

Semi-automatic seaming machines allow you to quickly seal seams on long slopes

When using electric seamers, an even seam is obtained in one pass, requiring minimal human intervention. Using electrical equipment, you can easily work with rigid roofing material.

The most famous manufacturers of electric folding machines are companies such as Wuko (Austria), Dimos (France), Ytor (Sweden), Draco (Germany), CA GROUP Limited (UK), Mobiprof (Russia).

Electric folding machines require minimal human intervention and allow you to get the job done quickly and efficiently

Portable roll forming machines

Profiling machines allow you to make a seam roof from rolled steel without horizontal seams. The machine and strip are delivered to construction site, where paintings of the required length with a vertical double fold are immediately rolled.

All connecting parts used during the installation of a seam roof must be made of the same material as the main covering.

There are machines for creating self-locking seams, in which case no additional tools are needed. It is enough to lay and fix the sheets, then press on the fold and it will snap into place.

Portable roll forming machines allow you to create rebated sheets of the required length on site

Video: Tool used to create a seam roof

The seam roof is very durable and provides maximum roof tightness. To create a seam roof, metal sheets (pictures) are used, the sides of which are specially prepared. If we talk about the types of folded panels, they can be:

• trapezoidal or parallel;

  The trapezoidal fold has additional ribs 4–5 mm high, which increase the rigidity of the sheet

• starting or ordinary. U launch pad both edges have an internal bend, on the ordinary one the right one is curved in reverse side and is placed on the adjacent panel to connect it into a lock;

  The starting panel is installed first from the edge of the roof, and the ordinary ones are used for further installation

• with self-latching lock;

  To lock the self-latching lock, just press it with your foot.

• with or without ribbing.

  The presence of ribs on the self-latching panel increases its rigidity

When installing a seam roof, the following additional elements are used:

• ridge strip;
• valley;
• cornice strip;
• end strip;
• abutment strip.

When drawing up an estimate, do not forget to include in it the cost of all additional elements, clamps and other fasteners. In order for the roof to fully function and fulfill its purpose, the following must be installed on it:

• elements drainage system. They are needed to organize effective drainage of water from the roofing;
• ventilation outlets. They will help ensure normal ventilation so that the condensation formed does not damage metal and wooden elements roofs;
• protection elements - snow arresters and lightning rods, which protect the coating from damage, and people living in the house and located next to it from injury and electrical discharges.

The installation of a seam roof involves the installation of all the necessary additional elements; this cannot be neglected.

The installation of a seam roof implies the presence of snow retainers, gutters and other additional elements

The construction of a high-quality, well-insulated and sound-insulated seam roof implies the presence of the following elements:

Features of installation of seam roofing

The installation of a seam roof involves careful execution of all stages. Sheets can only be transferred to vertical position, and they are served on the roof on boards to prevent kinks. The sheathing must be level, the permissible angle of inclination of the slope is more than 7 degrees.

The work is performed in the following sequence:

1. Installation of sheathing. At slope angles up to 14 o, manufacturers recommend laying seam roofing on a continuous sheathing. On steeper slopes, a sparse base can be used with a pitch of no more than 40 cm.

   On small slopes under a seam roof, it is necessary to arrange a continuous sheathing; at angles greater than 14 degrees, you can also do a sparse one, but in increments of no more than 40 cm

2. Attaching the cornice strip. Before laying the sheets, the cornice strips are fixed. They are nailed 35 mm above the sheathing and fastened with galvanized nails.
3. Laying the first sheet. When installing the first sheet, you need to be especially careful. The sheet should protrude 10 cm above the cornice. The sheet is aligned both vertically and horizontal position so that the angle between it and the cornice is 90 o. The start panel is used as the first sheet.
4. Fixing the first sheet. If there are holes in the sheet, then it is attached to the sheathing using self-tapping screws, if not, then the fastening is done using clamps. The step between fasteners should not exceed 50 cm.

   The clamp is attached to the sheathing in three points and reliably presses the painting by its side edge, which eliminates the need to make holes in the covering itself

5. Installation of the second sheet. Its edges are combined with the edges of the first picture, and the opposite edge is fixed to the sheathing.

   One edge of the picture is combined with the previous sheet, and the second is fixed to the sheathing with clamps

6. Fixing the fold. With the help special tools a single or double fold is created.
7. Device for connecting to the cornice strip. The edges of the sheets that protrude beyond the cornice are folded and hidden under the additional strip. If they turn out to be very large, then the sheet is cut off.
8. Installation of additional elements. To cover the ridge, valley and junction points, you can purchase ready-made elements or make them yourself. They are also connected using a fold.

   The installation of a seam roof is completed with the installation of a ridge additional element

To bend folds, it is better to use semi-automatic or automatic devices, since hand tools Only a master can make a quality connection. The overlap of the sheets should be about 20 cm, and their offset relative to the previous row should be half the width of the picture.

Video: seam roofing - installation overview

At self-installation With a seam roof, you can make some mistakes that will lead to a violation of the tightness of the coating, which will significantly reduce its service life:

Mistakes made during the installation of a seam roof lead to leaks, disruption of the roof's sound insulation and freezing.

Features of the operation of seam roofing

During operation of a standing seam roof, it is necessary to carry out periodic inspections; it is better to do this during or immediately after rain, as it is easier to identify leaks. If problem areas appear, they are noted and repairs are carried out.

If you have a galvanized roof, then experts recommend painting it once every 10 years. Please note that with inside This type of roof rusts faster, so you may need to paint it sooner. If the roof is not galvanized, then it will have to be painted every 3-4 years.

If non-galvanized steel is used, then the roof will have to be painted once every 3-4 years

Service life of seam roofing

For the manufacture of seam roofing can be used different materials, therefore the service life of the coating will differ:

• steel sheets - 15–40 years depending on the type of coating. To extend the service life, polymer materials such as pural, purex, and polyester are used;
• aluminum paintings - 80–100 years;
• copper roofing - 100 years or more;
• zinc-titanium sheets - at least 100–150 years.

There can be many reasons for seam roof leaks. If it has been in use for a long time, negative influence may have the following factors:

• sagging or bending rafter system;
• sheet wear;
• cracks in places where the roof adjoins chimneys, ventilation shafts and other vertical elements due to frequent freezing and thawing;
• mechanical damage to roofing material;
• large pitch of sheathing;
• incorrectly made seam connection.

Restoration work begins with an inspection of the roof from the attic side. If you determine that the seam is leaking, you need to re-roll it and use it to improve the tightness. silicone sealant. If the reason is damage to the rafter system, then spot repairs are not enough, you will have to do major renovation roofs. In this case, it is also better to replace the roofing material.

If corrosion and rust appear on metal sheets, as well as if the rafter system is damaged, it is necessary to make a major repair of the roof

When the reason is the appearance of mechanical damage in the form of holes, the entire picture needs to be replaced. To dismantle it, you will need a special tool with which to unbend the folds. Then the old sheet is removed, a new one is installed and the seams are rolled up.

If the roof is aluminum or copper, then the hole can be soldered. For additional sealing of folds, you can use special butyl rubber tapes or cords. Please note that ordinary rubber sealant loses its properties at temperatures above 90 o C, so if the house is in southern region, then you need to use a high-temperature sealant.

To increase the strength of the seam, horizontal folds are tapped with a mallet, and vertical folds are opened and rolled up again. If rust appears, then it must be dealt with at the very initial stages. It is cleaned off with a brush and then problem area coated with special compounds, for example, “Anticor”, “Rust Converter” or others. After they dry, the surface is painted.

The roof is one of the main elements of any home. If you decide to make a seam roof and do not have the necessary skills, then it is better to invite specialists to perform such work. Only correct and competent installation, which requires special tools and equipment, will create a strong, reliable and durable coating.

When building a house, it is important to remember that it should be attractive, comfortable and cozy not only inside, but also outside. In order to transform the appearance of a home, various techniques and materials are used. However, many do not think about how important the roof covering is and how it can affect the exterior of the building and its visual perception.

In order to modern roof was not only beautiful, but also reliable protection, you need to decide on the type of coating, analyze all its pros and cons, compare several options and choose the optimal one.

Seam roofing is one of the best options that the modern construction market offers, because it is unique in its kind. This material has amazing appearance And reliable waterproofing, since metal sheets are tightly fastened with reliable systems. If you make a mistake, the roof will leak and will most likely have to be repaired, so you need to entrust the job to professionals who guarantee quality.

When installing a seam roof, no nails are used, which means there are simply no holes. The sheets are connected using special bends and locks, which will allow for quick and reliable installation of the coating, which is gradually gaining popularity in Russia.

History of seam roofing

For the first time, this coating was made from copper, since it is quite plastic, but at the same time resistant to the influences of nature. Thanks to the flexibility of the material, it was easy to make the necessary bends and give the sheets the required thickness.

With the development of technology there has appeared alternative option– steel. Thanks to metalworking, the use of both ordinary and galvanized steel has become available. It was this change that gave impetus to the development of seam roofing; it began to be used more and more often, due to its low cost (steel is several times cheaper than copper). However, copper has not disappeared without a trace; some people still allow themselves to use it, since it is more reliable and presentable.

Thanks to modern technologies A unique seam roof with a self-latching mechanism was born. The installation of such a roof does not require special skills or tools; even the homeowner can carry out the installation. It should be noted that this type of seam roofing is a little more expensive, but if you take into account the fact that you don’t need to hire workers or rent equipment, then it’s worth it.

Subsequently, with the development of technologies, not only the material of the seam covering, but also the methods of its installation received modifications. Steel is a metal that can corrode and must be painted. Over time, the paint dried out, cracked, the cracks let moisture through, as a result of which corrosion could not be avoided, the only way out was to paint the roof every year.

Now there is a more practical solution - galvanized iron. Thus, the roof has become stronger and more reliable, but this also affected the price. Polymer coating is the most reliable and proven option, which only improves the wear resistance of the roofing material.

Technical Parameters

Seam roofing consists of small sheets - pictures, connected using seam locks. When joining sheets, a seam of one of these types appears at the point of contact: standing, lying, single or double.

Longitudinal ribs are closed using a standing seam, horizontal sides with precision and vice versa - a lying seam. If the roofing material does not have a self-latching device, then the joints must be rolled up.

An option proven over the years, which is the best solution– the use of a double standing seam, which guarantees tightness and complete moisture insulation.

It is worth noting that the seam roof is very attractive in appearance; with its help you can create not only reliable protection for the roof of the house, but also to make the building original. The material goes well with any style, so its use does not cause negative feedback.

Advantages

Seam roofing has a number of advantages, among which it is necessary to highlight:

• Reliability and long term operation thanks to the folded snap-in system, which does not require the use of nails. The absence of holes will extend the service life of the material for many years.
• Moisture resistance, which is explained by the same reason - structural integrity. The seam roof will reliably protect private house and its inhabitants even on the rainiest day.
• Most roofing materials require a strong rafter system; it is often necessary to strengthen the roof frame. In the case of rebated roofing, this problem does not exist, since it is light in weight.
• Versatility. Seam roofing is perfect for any type of roof, because it can be used to decorate both flat, pitched and multi-gable roofs.
• Fire safety. Metal provides reliable protection against fire.
• Snow and rain will not linger on the roof, since the seam roof has a smooth surface on which precipitation will slide.
• No corrosion due to a unique fastening system.
• Easy to maintain and repair.

Flaws

We have considered and studied all the advantages of using a seam roof, but what about its shortcomings, does it have them and how serious are they?

Whatever it is, perfect coverage does not exist, which means that an excellent seam roof has its disadvantages, which include:

• If the use of self-locking sheets of seam roofing is impossible and it is necessary to use another type of this roof, then you will have to spend a lot of money to attract a team of professionals who can install the covering.
• High thermal conductivity. In this regard, you will have to spend more money on high-quality thermal insulation. It is necessary to carefully consider the structure and thickness roofing pie to avoid all possible unpleasant consequences.
• Poor sound insulation. The metal covering makes a lot of noise during precipitation; there is a risk that all these sounds will penetrate the house, and not everyone likes this. Based on this, you need to take care of high-quality sound insulation, and this also affects costs.
• It is necessary to create lightning protection, install special equipment and grounding, since the metal coating can accumulate a static charge, thereby attracting a lightning discharge.
• Installation of snow guards. Due to the fact that the roof is slippery, there is a risk that a large mass of snow could fall from it, which could cause injury to the occupants of the house.

Old Moscow mansions are covered with seam roofing. This type of roof is strongly associated with architectural classics. However, almost all cottages in classic style, covered with tiles. Perhaps we should return to the well-forgotten old? Moreover, it is not so expensive and looks more stylish.

Roofing sheets that are fastened using the seam method are called pictures. Various metals and alloys are used as material for paintings: copper, aluminum, zinc-titanium, galvanized steel. Copper plating is the most expensive. Zinc-titanium material is more affordable, but some of its models are more expensive than copper, and it behaves capriciously - if installed incorrectly, it can rot. Perhaps the most budget-friendly solution would be a seam roof made of aluminum with a polymer coating 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. This steel can withstand heavy loads, repels dirt well and resists temperature changes. Zinc-titanium actually includes copper, so it can develop a patina over time. But there is a type of material that is covered with a protective transparent film and is intended for any climatic conditions. When ordering non-oxidized copper seam roofing, you need to consider that over time, the natural process of oxidation will cause your roof to turn green. Modern technologies make it possible to delay this moment and achieve uniform “greening”, but one way or another, patina is inevitable. Will it match the color of your home? Think about the consequences in advance. Copper is a material that demands respect. When installing it, workers must wear rubber shoes to avoid leaving scratches on the sheets.

“Pictures” are cut to fit the shape of your roof. Rolled metal, unlike popular metal tiles, softerly bends around domed sections of the roof, the tops of turrets, and bay windows. There is a fold along the edges of the picture sheet, which serves as a fastener to the adjacent sheet. The connection of folds can be recumbent single and double, as well as standing corner, when two sheets are connected and bent at an angle of 90C, and double, when the edges are bent at 180C, forming a straight ridge seam. 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 joined on site using special device. To fasten paintings to the base of the roof, clamps are used, which can be movable or fixed. The former are used for a certain sheet length, when we're talking about about the expansion of metal - 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 seam ridges are not pressed to the end, leaving a small gap. Fixed clamps are also needed, but they are installed in other places. Experts themselves determine where and what 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.

The pie for a seam roof is not much different from the pie for metal tiles - it’s still the same lathing, the pitch of which depends on the angle of inclination. However, there are still nuances. For example, a seam roof made of zinc-titanium requires good ventilation, otherwise it will quickly rot. There are 2 methods for ventilation: simple and expensive. In simple cases, they make a sparse wooden sheathing. But you can also make a continuous sheathing, and lay a special membrane on it. Zinc-titanium must be installed 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 sheathing under the roof must be continuous. Titanium-zinc roofing runs the risk of rusting in places if the wrong components are used - only materials made of galvanized steel or stainless steel are suitable for such sheets. And with copper you can’t use anything other than stainless steel or the same copper.

Expert opinion

There is a common misconception - seam roofing is noisy. In fact, if there is thermal insulation in the roofing pie, then the problem of sound insulation is also solved. In addition, metal does not have the cross-section of tiles, which makes it less noisy. Trust roofing installation better for professionals who are well familiar with the folded laying method. “Jack of all trades” hardly know in which places movable and in which fixed clamps are needed. They have not heard about the linear expansion of metal, so they are unlikely to make allowances for this during installation, and such an error can lead to rupture of the material.

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

Errors when assembling sheets of pictures:

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

Advantages of seam roofing:

• Absolute tightness (if installed correctly);
• Possibility of hermetically sealing complex roofing shapes;
• The best coating yield is if the roof is almost flat (angle of inclination up to 12C).

There are many types different coatings roofs We invite you to discuss what a self-latching metal seam roof is, its design, installation, and how to make it yourself.

What is seam roofing

Modern seam roofing is a type of roof in which roofing materials They are not cut through with nails; they are fastened using special bends of the edges. This type of structure has become widespread in Europe, but at the same time it is still quite rarely used in the CIS countries. The point is that when strong winds or atmospheric precipitation pressure, the seam may not withstand and begin to leak at certain points. Its production is carried out in almost the same way as profile flooring, with the exception of cutting and rolling.

In addition, the price of work, for example, to repair a seam roof, is quite high compared to other roof structures. Such roofing systems are typically used on roofs that have small angle tilt They are also used for covering a house, constructing domes (“checkers”), or decorating utility rooms: garage, bathhouse, veranda, hangars.

Photo: beautiful checker-shaped seam roof

Design

For a conventional seam roof, the minimum slope is very important; it generally varies from 10 degrees to 30. The design of such a roof mainly depends on the seam used. According to SNIP, there are the following types of folds:

1. Standing double and single;
2. Recumbent double and single.

Lying seams are very convenient for organizing water drainage from the roof. They are connected parallel to the eaves and are suitable for use in regions with high average annual rainfall. Vertical or standing seam seams are characterized by a connection parallel to the rafters. To make a seam roof connection, it is convenient to use a special sheet bending machine, but in most cases the technology is manual, i.e. for carrying out roofing works no special equipment needed.

Photo: vertical folds

It is most convenient to build a roof with a single standing seam; this type of construction is called snap-on or lock-on. But at the same time, the most reliable and durable is considered to be a flexible double-seam roof, which is characterized by high levels of tightness of the units.

Seam roofing is galvanized rolled or sheet steel, pre-bent at the edges. Sometimes aluminum is used, but it is too soft and easily deformed, which makes such a surface not durable enough. Metal tiles are used a little less frequently. The steel ready for installation on the roof is called a picture.

Rolls are much more convenient to install; they are simply spread over the roof surface. This material ensures the most airtight connection, thanks to which there is no need to create horizontal folds. Finnish roll tiles with a polymer layer are often used for this.

Seam roofing is also characterized by frequent pitches. On average, the pitch of frame beams should not exceed 25 centimeters; it is best to work with wood material. At first glance, the result is a rather heavy rafter system, but the large weight of the beams is compensated by the lightness of the roof itself.

Installation

The right way to start manufacturing a seam roof is to develop drawings. They are useful for calculating sheets and surface size. As you may have noticed from the description of the roof, flashings and gutters are installed after installation, so they do not need to be included in the project. After completing the design work, you need to cut the paintings or measure the length of the rolls.

After this, you need to install the paintings on the folded crate standard roof. This must be done using special profile elements, which are also called clamps. They are attached to the edges of curved pictures. Such a rectangular clamp is inserted with one part under the steel surface, and the other is bent over it. As a result, a strong and reliable seam is formed, which is very cheap compared to installation with screws. The whole process is carried out by a tool for standing seam roofing, whose operating principle is reminiscent of a manual sheet bending machine. It also bends the ridge and other roof elements if necessary (possible).

It can be purchased from a manufacturer of paintings and folding materials, or rented. Renting will cost several hundred rubles depending on its type and capabilities.

The main advantages of this installation is that the roof is obtained without a hole, i.e. is considered more durable - corrosion will not be able to penetrate solid metal. After roofing work is completed, the paintings, like metal siding, simple siding, corrugated sheets, etc., are covered special composition, which extends its shelf life.

Photo: snow guards on a seam roof

If you need to install funnels for water drainage, a ventilation facade, snow retainers or other additional elements, then you need to make holes in the required ones along the seam roof, after which the work is done. Finally, you will need to cut out the apron to create a hermetically sealed hole.

Despite the materials used and the high tightness of the coating, waterproofing is very important. It must be made from hygroscopic products; polystyrene foam is often used, a little less often mineral wool. The roofing pie of a seam roof generally looks like this:

Scheme: seam roof roofing pie

Traditionally, it includes vapor barrier, waterproofing and insulation. As vapor barrier material It is most convenient to use a film coating, while the insulation should be dense, for example, mineral wool. If you can afford it, you can use penoizol; it will do an excellent job with both of these functions.

Price overview

To buy a seam roof, you need to contact the manufacturer’s store directly roofing coverings of this type (Ruukki Rannila or Ruukki Classic D Pural, Grand Line, Kalzip and others). In addition, sometimes such coatings are sold on construction markets. There you can find products of such brands as Acrytec, Insi, OMZ (UkrKava plant).

Let's consider what the cost of seam roofing is in various cities of Russia, Belarus and Ukraine:

At the time of purchase, you can choose any roof color. Be sure to check with the manufacturer all the characteristics (GOST material GOST R 52246-2004, width, length, thickness) and guarantees. But in any case, if you want to create a stylish vintage roof or a completely sealed roof, then a seam roof is the most best option fencing the surface of the house.

Installation cost from 400 rubles per square meter.

Seam roofing is practically the most best view coverings. Fold is the name of the seam at the junction of metal sheets. Using the closed connection method, fastening occurs using clamps, thereby creating reliable joint, completely preventing the ingress of moisture.

In cases where the length of the roof slope is more than eight meters, it is recommended to use floating clamps. The main parts of a seam roof are pictures and panels equipped with specially bent edges for fastening.

Seam roofing can be considered a universal type of coating, capable of efficiently covering the most different types roofs The rebate covering is presented in various variations: double, single, vertical, horizontal joints. They are able to provide high-quality protection for both the main horizontal and lateral vertical parts of the roof. At the same time best protection double standing joint seams will protrude from leakage.

Seam roofing made from galvanized steel, color-coated steel, copper or others popular materials, requires professional “hands”, using special or traditional electromechanical equipment.

Advantages of seam roofing

1. Manufactured according to all norms and rules, the seam covering eliminates the risk of leakage and moisture entering through the roof.
2. Installation is simple and in a short time.
3. Metal sheets coatings are made from rolled metal. This material does not allow corrosion.
4. Seam roofing requires long-term use. This is due to the fact that there are no through holes for fasteners, which also prevents the formation of corrosion.
5. Smooth surface ensures unhindered drainage of precipitation from the roof.
6. Ease. Due to its low weight, it is possible to install light supporting structures (sheathing and rafters).
7. Fire resistance.
8. Diversity in colors.
9. Pleasant quality/price ratio. Seam roofing is a relatively inexpensive method of covering roofs.

You can order seam roofing on our website. Call the specified phone number and our operators will help you navigate among the assortment, as well as calculate the quantity and cost of the required material.

Advantages of cooperation with our company:

	We have been installing seam roofing for over 15 years.
	Quality assurance. We use metal only famous manufacturers, which proved themselves several years ago.
	Low cost on products. and installation
	The efficiency and professionalism of our employees and installers.

By ordering a product on our website, you can be sure of the quality of the material and professional installation.

The disadvantages include:

1. Difficulties during installation, which require special equipment: folding and folding machines, grinders.

2. Poor sound insulation. The noise of thunderstorm rain will be felt indoors.

Seam roofing price per m2

Seam roof installation

If you are building a roof from scratch, then you need to start with the installation of a Mauerlat. Mauerlat for private houses, it is usually made of wood (timber or log); for industrial tasks, a metal channel or I-beam is used. The Mauerlat is laid along the outer perimeter of the walls and serves as support rafter legs and load distribution of the rafter system. In the case of laying a wooden Mauerlat, it must be insulated with waterproofing or roofing felt, since high humidity is generated in this roofing unit.

After installing the Mauerlat, you must install rafter system. For private houses, a wooden rafter system is mainly used, for large buildings a metal rafter system is used. The rafter system is the main roof structure to which all the load-bearing elements of the roof are tied. Consists of inclined rafter legs, vertical racks and inclined struts.

Having installed the rafter system, you can begin to insulate the roof. Conventionally, roofs can be divided into two types: a cold attic (the insulation is laid directly on the floor) and an attic (the insulation is mounted directly in the roof slope in the area of ​​the rafters).

Important! When laying insulation in attic roof lay it out correctly vapor barrier film under the insulation. It is overlapped and glued double-sided tape. Professionally connected to the wall to prevent air from entering from the street, because... You can get the dew point effect when air from a warm room and the street mix, condensation forms and accumulates in the insulation!

Cold attic diagram:

Attic roof diagram:

After installing the roofing pie, you can begin installing the seam roof. Seam paintings can be laid either on a solid sheathing (board, plywood, OSB) or on a sheathing with steps (the step should be no more than a human foot of 25 cm, to avoid the painting being crushed )

Type of folds:

Installed using hand presses or a folding machine. Minimum slope roof two degrees! As a rule, finished paintings are brought to the site or the paintings are rolled directly on the site along the length of the ramp.

The advantage of this fold is that it does not require special equipment, and installation occurs by simply pressing on the edge, hence the name. As a rule, ready-rolled paintings are brought to the site, but they can be rolled directly on site. Not widely used because loses in reliability to the double fold.

Does not require any roofing machines, installation can be done with a minimum amount of roofing tools (hammer, mallet, metal shears). Old technology is becoming a thing of the past. It is usually mounted using ordinary galvanized sheets.

The bending and adjustment to size is done manually, which is why it is the most expensive type of roofing. It is used very often on churches and houses in an old style. Mainly copper or polymer-coated steel.

Seam roofing work

Installation of the rafter system
Installation of Mauerlat 150*150mm
Installation of the rafter system	from 295 RUR/sq.m
Installation of lathing
Installation of internal lining with boards, in increments of 100 mm	from 75 RUR/sq.m
Installation of step lathing with 100*25mm boards	from 85 RUR/sq.m
Installation of counter lathing
Installation of sheathing under ceramic tiles timber 50*50
Installation OSB boards
Warming and insulation
Installation of vapor barrier with sizing tape
Installation of waterproofing
Insulation pitched roof 150 mm
Insulation of pitched roof 200 mm
Installation of seam roofing galvanized	from 400 RUR/sq.m
Installation of seam copper roofing	from 580 RUR/sq.m
Installation of seam checkered roofing	from 1100 RUR/sq.m
Installation of complex seam roofing (dome, diamond)	from 1200 RUR/sq.m
Installation of seam roofing with polymer coating	from 520 RUR/sq.m
Drainage system
Installation of a polymer-coated drainage system (gutter)	from 380 r/m.p.
Installation of a drainage system with a polymer coating (pipe)	from 360 r/m.p.
Installation of a copper drainage system (gutter)	from 480 r/m.p.
Installation of a copper drainage system (pipe)	from 460 r/m.p.
Cornice part
Manufacturing and finishing of the cornice part (wooden lining)	from 420 r/m.p.
Manufacturing and finishing of the cornice part (vinyl lining)	from 350 r/m.p.
Manufacturing and finishing of the cornice part (metal PSP panel)	from 390 r/m.p.
Painting wooden lining in 2 layers	from 85 r/m.p.
Dormer windows
Installation dormer window into the finished roof	from 4850 RUR/pcs.
Installation of a roof window (standard)	from 4500 RUR/pcs.
Installation of a paired roof window	from 4850 RUR/pcs.
Additional work
Wood processing with OGNE-BIO composition
Installation of frame scaffolding	from 120 RUR/sq.m
Delivery	negotiable
Visit of the master for measurements in Moscow	FOR FREE
The technician can travel beyond the Moscow Ring Road up to 50 km.