What is a metal profile: its types, characteristics, advantages and disadvantages

Metal profiles are becoming more and more popular as roofing materials because of their strength and adaptability. A metal profile is a kind of roofing material, usually aluminum or steel, but it can be made of any metal. It is recognizable by its characteristic ribbed or corrugated look, which enhances its visual appeal while also having practical uses.

Metal profiles come in a variety of forms, each with special qualities. The ridges and valleys found in corrugated metal profiles improve their strength and ability to shed water. In contrast, standing seam profiles feature raised seams that interlock to improve weather resistance and give a smooth, continuous appearance.

The longevity of metal profiles is one of their main benefits. They are appropriate for a variety of climates due to their high resistance to weathering, which includes rain, snow, and UV rays. Metal profiles also have a long lifespan; with the right care, they can last for 50 years or longer. Compared to heavier roofing materials, they are also strong and lightweight, which lessens the structural load on buildings.

There are certain disadvantages to metal profiles in spite of all of their advantages. One significant worry is noise during periods of intense rain or hail, though this problem can be lessened with the right insulation. The initial cost is another factor to take into account, as it may be greater than that of conventional asphalt shingles. Nonetheless, a lot of homeowners discover that the initial outlay is justified by the long-term savings on replacement and upkeep.

Type of Metal Profile Characteristics, Advantages, and Disadvantages
Corrugated Metal Corrugated metal profiles have ridges and grooves that enhance strength and reduce weight. They are durable, resistant to weather, and suitable for various applications. However, they can be noisy during rain and may require careful installation to prevent leaks.
Standing Seam Metal Standing seam profiles feature vertical legs with seams that are raised above the level of the roofing panel. They offer sleek aesthetics, excellent water drainage, and are less prone to leakage. However, they can be more expensive and require professional installation due to their complex design.

Features and advantages of corrugated board

Metal profile, also known as a professional corrugated board, corrugated metalla, or even metal tiles, is a type of cold sheet steel that has successfully undergone hot galvanizing. The material’s technical and aesthetic qualities are enhanced by the relief created during rolling or stamping.

A metal sheet’s waves or corrugations give it stiffness and resistance to both static and dynamic loads.

The profiled roof, which has a thickness of 0.4 to 1.5 mm, can withstand the weight of an average person and retain a three-meter layer of snow for 30 days.

Applying a shell made of different zinc compounds is insufficient to protect against the harmful effects of the atmosphere, which drastically shorten the service life of any metal product. Within the next five years, this barrier could vanish and almost entirely separate with metal, leaving the building’s structure exposed.

Applying a polymer protective-decorative shell on top of galvanizing stabilizes and shields it from weathering. The external coating is in charge of providing resistance against the damaging effects of wind and water.

Furthermore, it imbues the original dull sheet steel with the hue and feel of vintage prototypes.

The choice of material for the walls and roof is influenced by the type of polymer coating. Several polymer compositions have been developed so that the metal profile can be used in different latitudes with different climatic conditions.

Certain polymer membranes are exceptionally resilient to temperature variations, particularly the intense UV rays.

The color selection has nothing to do with the makeup of the indicated protection, which shields the metal basis from oxidation and rust. Any type of material can be used for the roof’s column, the walls’ sheathing, or the fence.

Sheets of metal profile are conditionally divided into types according to the height and form of the corrugation. It might be tall, slender, symmetrical, or asymmetrical. Keep in mind that the material’s bearing capacity increases with wave height and metal sheet thickness.

Practicality in the Union with economicality

A cost-effective, all-purpose material, metal profile is actively used in low-rise residential and commercial construction.

Its application range is broad and varied: it can be applied to slightly loaded cladding as well as the construction of supporting structural elements.

A good profiled steel panel benefit acknowledges a successful fusion of technological and technical advantages, such as:

  • Strength. The property of all metal parts and structures. The highest possible strength indicators both for compression and bending. Even in case of violation of the rules for the installation of the base when exceeding the permissible load, the material bend, but the integrity will not be violated.
  • A light weight. Quality that significantly facilitates the transportation of the material to the construction object, and its laying. Thanks to the lightweight of metal coatings, there is no need for a powerful base and strengthening the foundation, which positively affects the construction budget.
  • Convenient dimensions. Installation of large metal sheets on the roof and fastening to the sheathed walls is made much faster than laying piece coatings.
  • Technology. The cutting and fixing of profiled panels is without problems directly on the construction site. An absolutely inexperienced performer will be able to perform work, who should still know the rules for the location of metal sheets.
  • Fire resistance. Metal panels do not burn, do not support and do not disseminate combustion, in view of which they are justified in the construction and decoration of fire hazardous objects: warehouses, household chemicals and building materials, garages, hangars, etc.D.

The list of drawbacks that metal corrugated panels still have somewhat overshadows the impressive list of benefits.

First of all, the material is not laid without insulation in house arrangements because of its low insulating qualities. At the same time, sound waves are stopped from passing through thermal insulation.

Second, lightning rods are necessary for metal roofs because they are far more likely to experience an atmospheric discharge than tiled roofs. A home with a similar roof should ideally—and is highly encouraged to—have a functional grounding system installed.

The corrugated sheet format, which is one of the benefits, is directly linked to the third drawback. Many cutting wastes are produced during the Valmovs, Half, and other "curly" roof arrangement.

Varieties and specifics of marking

Although the metal tile is associated with a particular type of profiled sheet coating, its application is significantly limited.

This kind of material is only meant to be used for roofing. which is supported by the relief’s actual design, which mimics ceramic roofing materials.

More options are presented to builders and finishes by metal profiles. It is actively used here, but it has nothing to do with roofing specifically.

The professionalist is conditionally divided into three main types based on the functional purpose; these types may be used for other purposes provided the bearing capacity permits.

The profiled sheets are separated into the following types based on their bearing capacity, which is directly tied to their use and purpose:

  • N – the most durable supporting option, characterized by the maximum profile height and the thickness of the sheet. Its corrugations are complemented by small grooves that increase rigidity. Used in the construction of non -removable formwork, the device of ceilings, durable fences, responsible metal structures.
  • NS -Non-level-stena material related to universal types. In terms of strength characteristics, it is inferior to H-Marcam, the thickness of the leaf and the height of the wave is also smaller. This type is used in the device of roofing coatings, in the lining of external wall insulation systems, and the construction of fences.
  • WITH – wall species, sheet with the lowest relief and thickness of the sheet. It is suitable for wall decoration, in rare cases it is bought for the installation of roofs in regions with low snow load.

The labeling literal is not required to be a part of the classification. T.e. It just suggests that for a strong enclosing structure or floor, it is not desirable to purchase a certain type of wall.

It is not logical to utilize N-material in structures that do not experience loading loads. It is more costly in addition to being stronger. Generally speaking, roofers favor an all-purpose NS-option that works well for any kind of task.

The figure is indicated in the marking after the letters. The height of the wave is another crucial feature of a metal profile. The professionalist is tougher the larger it is.

The specifics of the supply of roofing material

The required length of profiled metal panels is supplied for the roof device. Typically, the vendor offering goods that gets a metal profile in the shape of 6 or 12 m sheets is the one who cuts. The range of useful width is 90 to 110 cm.

The coating can be precisely cut to match the slopes of the roof, reducing the amount of horizontal seams and joints that could potentially cause leaks.

The panel is positioned with the overflow of the most extreme adjacent waves on the longitudinal line, which further tightens the coating.

In order to arrange roofs featuring rolons, passages, and yendov, diagonal cuts are made right at the building. At the installation site, a disk saw equipped with a sheet thin steel nozzle is used to make the cuts. Metal scissors or electric shears are other options for cutting.


Manufacturers of metal profile produce a wide range to ensure complete protection of the roof constructed from atmospheric phenomena and beautifully designed roof.

When choosing the materials for the roof’s arrangement, you should buy extra components like:

  • The end bar. Closes the end of the roof structure from the sideboard. Prevents the spanning of fasteners under the influence of wind, protects against its lifting force and from water penetration. It is installed after the roofing.
  • Dropper. It is installed along the cornice of the pitched roof on top of the waterproofing. It is needed for the removal of condensate formed in a roof pie due to the difference in temperature from the inside and outside.
  • Upper and Lower Endovs. Designed for arranging mosses. These are paired, bent along the own axis of the symmetry of the bar, the first of which is attached to the crate before laying the coating, the second is fixed on top of the covered coating after its device.
  • The plank of the adjoining. They serve to protect and design of curved and concave angles, for example, joints of sloping roof slopes, a passage of a brick pipe through a roof, roof and wall conjugation.
  • Carnetic bar. Mounted along the cornice of the pitched roof after installing the gutter. In fact, it serves a guide, removing rain water from the roof straight into the gutter.
  • Glaces for the skate and hip ribs. Used for external protection and decorating ridge and hollow ridges of the pitched roofs. Prevent the penetration of atmospheric water into the roof pie, but pass the air streams passing upwards.

The concave sections of the wave remain uncovered along this line because all plank types are laid across the direction of the corrugated relief. Atmospheric water does not pose any threat to them. The profiled sheet’s operational discharge is facilitated by its constructive specificity.

Open spaces, on the other hand, are more likely to miss dust, insects, and other unwanted elements in the roof pie when struck by a strong wind. Thus, a foam seal is laid along the lines where various strips are attached. Dust and insects will be driven off the road by him, but condensate will be released with ease.

Accessories for a profiled roof

The snow on the metal roof still has the ability to lie, even though the manufacturers guarantee that snow deposits pass from a metal profile for the roof without actually remaining on its surface.

If there is a lot of loss at temperatures near 0°C, snowdrifts can form and accumulate even on steepness structures of 45°. Because of the increased "stickiness" of the snow mass in this instance, excessive accumulations will inevitably damage the coating.

Snow can cause far more damage than just the potential for corrosion in the polymer coating-damaged area. Everything from the disintegration and destruction of dobctions to the development of rust foci on a metal roof and the collapse of a snowdrift on bystanders.

Snow retainers are used on the slopes of the roof to prevent snow collapses from rushing to cause an avalanche on the heads of onlookers. They are arranged in a checkerboard pattern or parallel to the cornice line, but in the same direction.

Self-tapping screws are used to secure the snow-holding devices, which also help to evenly distribute the drifts on the coating, to the crate via metal panels. Fasteners are used in a way that prevents rattling and backlash.

The snow-holding tubular devices are the primary equipment on the profiled steel roof. The installation process is very easy: after attaching and aligning the side supports in the horizon, tubes are inserted into the holes.

For metal corrugated roofs, transitional bridges and stairs that are meant to move along the roof while it is in use are also made.

The elements are fixed, indicating that a project must be developed before building even a cheap metal roof in order to attach a load to a continuous crate.

"Metal profiles are versatile roofing materials known for their durability and aesthetic appeal. They come in various types such as corrugated and standing seam, each offering unique characteristics. Corrugated profiles, with their wavy surface, excel in strength and cost-effectiveness, making them popular for residential and agricultural buildings. On the other hand, standing seam profiles feature sleek, interlocking panels that enhance weather resistance and modern aesthetics, often used in commercial and upscale residential projects. Despite their longevity and weather resistance, metal profiles can be prone to denting and noise issues during rain. Overall, choosing a metal profile involves balancing its robustness, appearance, and potential drawbacks to best suit the specific needs of the roofing project."

Grounding a metal structure

Regardless of the primary lightning rod, use a different tire to ground the metal coating. Therefore, it is essential to rule out the possibility that lightning will strike the steel structure and cause harm to the owners and the house.

Three primary parts make up the most basic form of the grounding system: a grounding ground, a current of the current, and a lightning recreation. They can produce it independently using homemade materials, or they can buy it in a factory version.

After positioning the lightning receiver on the skating edge, secure it with wooden dowels. A smooth steel or aluminum bar with a diameter of roughly 12 mm is used in section to manufacture it. Depending on the local standards, the length of the rod can range from 20 to 150 cm.

A single residential steel or aluminum wire serves as the current. The ideal wire thickness is 6 mm, however there might be small differences.

It is welded to the lightning receiver and placed on the crate and moved beneath a metal roof all the way down to the wall. The protective shell is removed at the points where the coating and current come into contact.

It is advised to split the current into multiple branches so that there are more points of contact between it and the metal coating in order to maximize its effect. He should typically cover multiple adjacent panels, as this is desirable. In this instance, the lightning discharge will stutter more quickly at the point of least resistance.

The next section of the current-wrap is applied along the wall, or more accurately, on the exterior. Brackets handle the fastening. Additionally, the 1.5 m-long corner, a metal pipe, or a channel serves as the wire’s grounding ground. A metal sheet should be at least 1 meter by 1 meter in size if it is to be used as a grounding conductor.

The foundation is excavating to a depth of 1.5 meters in order to install the lightning rod’s grounding portion. The sand at the bottom of the pit is covered with a layer of 0.1 m, after which water is poured and the grounding ground is submerged. After installing the soil and connecting it to the current lane, the pit containing the grounding ground is filled with water once more.

The best place to arrange the grounding component and install current-wrap on the wall is from the back of the house. It is not desirable for every part of the lightning rod to be on the front side. They are sufficiently dangerous and unsightly.

Messontal care rules

After installation, metal profile needs to be ready for use, just like any other kind of roofing. It is necessary to remove the complete SOR that accumulated during the installation activities from its surface.

To preserve the integrity of the decorative and protective shell, the lines where the cutting was made should be painted using an aerosol spray can. All damaged areas must be tinted, even if they only appear to have minor scratches or scuffs.

The screws that were put in a metal profiled roof should be removed around three months after installation. It’s possible that their bond has become weaker. This occurs, particularly in places where there is a lot of wind.

The profiled coating needs to be cleaned twice a year to remove debris that has accumulated on it, such as dust, debris from the roof, fallen leaves, and pieces of bark and branches. It is preferable to use a soft brush that was purchased especially for this purpose to remove dirt. But rags work just as well, as does a medium-pressure stream of clean water.

Nothing that can cause rust to appear and spread must be removed from the coating. Nothing that can retain moisture should be used.

Avoid testing the strength of the coating by moving along it in shoes with a hard sole and leaving unpainted scratches on it.

Metal roofing profiles are a popular choice because of their strength and visual appeal. They are available in a variety of forms, including standing seam panels and corrugated sheets, each with special qualities that fit well with various architectural motifs and climates.

The longevity of metal profiles is one of their main benefits. Metal profiles, in contrast to more conventional roofing materials like asphalt shingles, have a 50-year or longer lifespan when properly maintained. They are a dependable option for homeowners seeking longevity because of their resistance to rot, mildew, insects, and fire.

Furthermore, metal profiles are lighter than materials like clay tiles or concrete, which can ease installation and lessen the structural load on buildings. Because of this feature, they can also be used to retrofit existing roofs without sacrificing the structural integrity of the building.

Metal profiles do have some disadvantages, despite their advantages. Their initial cost may be higher than that of other roofing materials, which could put off homeowners on a tight budget. Inadequate installation can also result in problems like rain noise or thermal expansion, though these can be lessened with expert installation.

To sum up, metal profiles provide roofing solutions with the best possible balance of strength, adaptability, and visual appeal. Many homeowners looking for a dependable and beautiful roofing material choose them because of their long lifespan, low maintenance needs, and ability to withstand harsh weather conditions.

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Gleb Zuev

Exterior designer, author of books about roofing materials. I will help you make your roof not only reliable, but also beautiful.

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