Metal roof tiles have a reputation for being modern, sophisticated and easy to install. roofing. Before fixing this material, they must make calculations, taking into account the size of one sheet, the shape of the roofs, the step of the crate and some other nuances.

Calculation of metal tiles on the roof

There will be no doubts about the quality of the installation of a metal tile roof if you determine in advance the optimal size of the sheet and calculate how many self-tapping screws are required. When calculating the number of metal tiles, pay attention to the shape of the roof, which can be not only single-pitched or gable, but also complex, for example, hip.

Sheet metal dimensions

Width and length, and hence the area of ​​a sheet of metal tiles is conditionally divided into two types: full and useful. The first type refers to the value that is measured from one to the other edge of the product, and the second - the size without taking into account those centimeters that are lost when creating overlaps.

When purchasing material, it is the useful width and length that are taken into account. In other words, the calculated amount of building materials is rounded up.

The length of a sheet of metal tiles varies from 40 cm to 8 m, and the width is between 116 and 119 cm. For the length of the product in the transverse direction special attention do not pay. Much more important is the length of the tile sheet. Optimal size- 4.5 m.

A smart builder will prefer to use sheets whose length matches the distance from the ridge to the roof eaves. He will refuse this idea only if the ridge board is located too far from the upper edge of the walls. Still, lifting sheets 6–8 m long upstairs at home is a very difficult task. In addition, huge pieces of material during the ascent to the roof can severely scratch the walls.

When the dimensions of the roof do not allow covering it with one sheet of metal tile from the eaves to the ridge, they buy material longer than necessary, and simply cut off the extra centimeters. Short sheets are not taken: they will have to be mounted with an overlap, which will lead to a significant waste of material and stupid waste.

Calculation of self-tapping screws for fixing metal tiles

When installing metal tiles, self-tapping screws are used different sizes:

• 4.8x35 mm or 4.8x20 mm (for fixing the material on a wooden crate);
• 4.8x20 mm (for connecting the edges of sheets in geometrically complex areas of the roof);
• 4.8x50 mm or 4.8x70 mm (for places where the material needs to be fixed especially strongly).

What will be the consumption of self-tapping screws, it is necessary to determine in advance, taking into account several nuances:

• fasteners are inserted into all places where the lower part of the material wave is in contact with the crate;
• near the ridge beam, self-tapping screws are immersed in each wave of material;
• at intermediate stages fasteners twisted into sheets through a wave;
• when creating an overlap, self-tapping screws are placed at a distance of a meter from each other along the crate.

Fasteners inserted into the material at short intervals will soon cause the roof to leak. And self-tapping screws, rarely used, will not be able to hold the metal sheets in place, which will lead to serious deformation of the roof.

Usually, 7 self-tapping screws are enough to fasten 1 m² of metal tiles, under which a crate is installed with an average pitch of 50 cm. True, this rule only works with a roof of a simple configuration. With the complexity of the shape of the roof, the required number of fasteners increases.

To determine exactly how many self-tapping screws 4.8x35 mm, 4.8x20 mm and 4.8x50 mm will be needed to install a metal roof, you should know the following parameters:

• approximate consumption of self-tapping screws per 1 m²;
• roof area;
• section of the board of the crate;
• slope length;
• slope width;
• required number of sheets of material.

Using a self-drawn scheme for attaching metal tiles to self-tapping screws, let's try to perform the calculations. Imagine that we need to fix the material on a roof with an area of ​​150 m², boards with a section of 30x150 m are used as lathing, the length of the slope is 7.75 m, the width is 10.2 m, and 40 sheets of metal tiles were purchased for the roof device. Now let's do the following tasks:

1. Find the required number of fasteners with a size of 4.8x20 mm. As the diagram shows, 21 self-tapping screws are required for each side joint. It turns out that for all 18 seams that will appear when the sheets are joined, 378 fasteners 20 mm long will be needed.
2. Let's determine how much you need to buy self-tapping screws with a size of 4.8x35 mm - fasteners for inter-row joints. According to the rules, each seam formed as a result of combining two rows of material is fixed with 6 self-tapping screws. On a roof with an area of ​​150 m², there are 20 such joints, which means that for installation work at the inter-row joint, it is necessary to purchase 120 fasteners 3.5 cm long.
3. Let's calculate how many fasteners with a size of 4.8x35 mm will go to work in the ridge area and on the eaves. In these areas, one sheet of metal tiles is fixed with three self-tapping screws. Therefore, on the roof, where it is planned to place 40 sheets, 120 fasteners will have to be used in the area of ​​\u200b\u200bthe ridge and eaves.
4. Find the number of fasteners 4.8x35 mm required for mounting metal tiles on the sides of the roof. At one end, 22 screws are usually used. It turns out that in the process of working on 4 ends of a gable roof, 88 fasteners will be needed.
5. We will find out how many self-tapping screws 3.5 cm long will need to be screwed into the central part of the sheets of metal tiles. Once in the middle of one piece of material, according to the rules, 5 fasteners are inserted, it turns out that 200 screws will have to be used for all 40 sheets. If we take into account all the previous cases of using fasteners with a size of 4.8x35 mm, then it turns out the following: before installing metal tiles, you need to purchase about 550 self-tapping screws (with a margin).
6. We determine how much fasteners with a diameter of 4.8 mm and a length of 5 cm should be bought. Taking into account the wavelength of the roofing material and the degree of reliability of fastening in the area of ​​\u200b\u200bthe ends, ridge and cornice, we decide to purchase not about 360 self-tapping screws.

If we add up all the results obtained, it turns out that for the installation of metal tiles on the roof, we need to prepare about 1300 self-tapping screws.

The number of sheets of metal tiles for roofing in one and two slopes

To find out how many sheets of metal tiles will have to close the roof in one slope, use certain data:

• nominal and useful width and length of one sheet of material;
• length and width of the roof slope;
• overlap dimensions in width and length.

The overlap of sheets along the length is usually equal to 10, 15 or 20 cm. And the size of the overlapping of the edges of the material on top of each other in width is determined by the useful width of the product. If the nominal sheet parameter is 1.1 m, and the useful parameter is 1.1 m, then the overlap in width will be the difference between these values ​​​​(0.08 m).

1. We multiply the width of the slope by the length and find out that the roof area is 90 m².
2. We divide the width of the slope by the useful width of a sheet of metal tiles and get the number of rows along the width of the roof (9 / 1.1 = 8).
3. To the length of the roof slope, we add the dimensions of the overlaps and the distance by which the rafters extend beyond the walls, as a result of which we find the total length of the slope (10 + 0.3 (2 overlaps of 0.15) + 0.1 \u003d 10.4).
4. We divide the total length of the slope by the useful length of the sheet in order to determine how many pieces of material one row along the length of the roof will consist of (10.4 / 3.5 \u003d 3).
5. We multiply the number of rows along the length of the roof by the number of rows along the width, that is, we find out how many sheets of material will be used during the construction of the roof (3x8 = 24).

According to our calculations, 24 sheets will need to be fixed on a roof of 90 m².

If you need to determine the amount of metal tiles for the construction of a gable roof, then the calculations will be exactly the same. True, one more action will be added to them - multiplication by 2.

Exceptions can only be in the situation when the roof slopes are not the same. In this scenario, for each slope, the amount of material is calculated separately.

Calculation of metal tiles for a hip roof

When the roof is hipped, that is, it has four slopes, in order to find out the required amount of metal tiles, the structure is conventionally divided into sections (into two isosceles triangles and two trapezoids). Next, the calculation is carried out in several stages:

Video: how to calculate the number of metal tiles on the roof

Calculator for calculating metal tiles

1. Choose the type of roof.
2. Note if the roof will be insulated.
3. Specify the width and length of the slopes.
4. Mark whether it is necessary to calculate the soffit.
5. Specify the type of soffit.
6. Write down the width of the cornice in the cell.
7. Specify the width of the front board.
8. Select material.

Calculation of the crate under the metal tile

Before calculating the amount of material for the construction of the crate, do the following:

• tape measure the width and length of the slopes;
• determine how much the crate will go beyond the eaves;
• take into account the consumption of frontal boards;
• decide what will be the base for the roofing material - solid or sparse.

The consumption of edged boards for the construction of a continuous crate can be determined without any hassle. Suppose that the roof area is 80 m², and for the construction of the base for the finishing coat, boards 0.15x6 m in size and 25 mm thick were purchased. In this situation, the calculation will look like this:

1. 0.15 m x 6 m = 0.9 m² (one board area).
2. 80 m² / 0.9 m² = 89 pcs. ( right amount boards).
3. 0.15 m x 0.025 m x 6 m = 0.0225 m³ (volume of 1 board).
4. 89 pcs. x 0.0225 m³ = 2.0025 m³ (cubic capacity of all necessary boards).

When the crate is sparse, the calculations are carried out taking into account the selected distance between the boards. Suppose the material is to be laid out every 35 cm on a roof with an area of ​​80 m², in which the width of the slopes is 8 m and the length is 5 m. Then the calculation will consist of 5 steps:

1. 5 / 0.35 \u003d 14 pcs. (number of boards on one slope).
2. 14 * 8 \u003d 112 m. p. (Total molding of boards on one slope).
3. 112 m.p. * 2 = 224 m.p. (total molding of boards on two slopes).
4. 224 m. p. / 6 = 37 pcs. (number of six-meter boards).
5. 37 * 0.0225 \u003d 0.8325 cubic meters (total volume of lumber for battens).

It will be easy to calculate what will be the consumption of metal tiles on the roof and the sheathing boards for it, if such data as the area of ​​\u200b\u200bthe roof and the dimensions of the materials used are known. By the way, so that independent calculations make it possible to build a roof without problems, the numbers obtained during the calculations should be rounded up.

For the arrangement of roofs of various buildings, one of the most preferred materials is metal tile. Compared to other coatings, it has a relatively low cost, is durable, easy to install, beautiful appearance and diverse colors. Before installing this material, it is necessary to calculate the metal tile on the roof in order to know exactly how much money is required for roofing work.

This material is roofing sheets with polymer coated, for the manufacture of which galvanized steel with a thickness of 0.4 to 0.6 m is used. It is first covered with a layer that protects zinc from corrosion and oxidation. After that, it is primed. Next, a paint and varnish coating is applied to the front side, which protects the material from atmospheric phenomena, and also decorates it. At the end, the necessary drawing is applied on the sheet.

It should be remembered that the right amount of material is almost never equal to the area of ​​\u200b\u200bthe roof. If you do not save (which is not worth doing during construction work), then add 10% to it. The result obtained is the area of ​​the required coverage. As practice shows, depending on the design of the roof, the area required material exceeds the roof area by 5-10%.

The discrepancy between these parameters is due to two reasons. Firstly, cutting material is never without waste, which can be from 5 to 40% of the used coating. Secondly, metal tile sheets cannot be arbitrarily turned over, and they are stacked overlapping each other. These factors complicate the calculation of the required coverage.

Types of metal tiles

Before you calculate the metal tile on the roof, you should know its varieties. The most important indicators that you should pay attention to are the thickness of the sheets and the type of coating. The price for material with a thickness of 0.4 and 0.5 mm is almost the same, but the guarantee for them is different: for 0.4 mm - 10 years, and for metal tiles 0.5 mm - 15 years.

There are five main types of metal tile coating:

• polyester;
• matte polyester;
• polyvinyl difluoride or PVDF;
• plastisol;
• matt pural (Pural® matt).

The characteristics of the material depend just on the type of coating

Polyester is the most inexpensive material, 25 microns thick, which is made from polyester paint. It does not lose its color during the entire operation and is able to serve in any climatic conditions. Matte polyester is also resistant to the negative effects of climatic factors, mechanical stress, etc., and has an aesthetic appearance. Its thickness is 35 microns.

Matte pural is made of polyurethane, resistant to temperature extremes and corrosion. Retains its color over time. Coating thickness - 50 microns. One of the most durable types of metal tiles. The absolute leader in this indicator is plastisol, which has the largest thickness - 200 microns. Resistant to both atmospheric and mechanical phenomena. Available with embossed surface.

The PVDF coating is the most durable. Made from 80% polyvinyl difluoride and 20% acrylic. Its thickness is small - 27 microns, the main color is metallic. Does not fade in the sun and is suitable for all climatic conditions, and also requires almost no maintenance.

Sequence of calculations

The basic parameter is the roof area. However, it is only valid for approximate calculations. More accurate data will be obtained by determining the area of ​​\u200b\u200beach slope.

Another equally important value is the width of the sheets. The wave pitch is usually 250 mm. Different manufacturers produce sheets of one or another width, which should be taken into account.

Depending on the size of the roof, it is necessary to select sheets of suitable length. As a rule, this parameter is standard for different manufacturers, but some can order sheets up to 8 m long. In construction, the following rule applies: the longer the sheets, the less waste is generated.

Basically, the most suitable length of sheets is 4 - 5 m. The number of sheets is calculated as follows:

1. The greatest length of a metal tile sheet is divided by its working width. The resulting number is rounded up. The calculation is done horizontally, not vertically.
2. The number of sheets for one row and their total length is calculated by measuring the length of the slope from top to bottom. This takes into account eaves overhang equal to 0.05 m.
3. The vertical overlap of sheets is usually 0.15 m per row. If you are going to lay sheets of metal tiles in one row, and their length allows this, then the overlap is not taken into account during the calculations. When in contact with another slope, the length of the sheet should be enough for the bevels to completely overlap.
4. All indicators after measurements are added. The result will be the required length.

Calculation of metal roofing can be carried out by professionals, taking into account the characteristics of the building, in which case the amount of waste will decrease. The metal tile itself is available in different sizes: from 70 cm to 12 m. suitable option- 4-4.5 m.

As we have already said, the calculation of metal tiles includes counting the sheets on each slope and calculating their area. In addition, it is required to calculate the number of sheets on each row, taking into account the cut sheets. If we take into account the geometry of each slope and their dimensions, as well as the length and width of the overhangs, then it will not be difficult to make a general calculation.

For a gable roof, the calculation of this material is carried out as follows. Let's assume that the size of the rectangular slopes is:

• width: 8 m;
• height: 6 m.

With a sheet length of 4 m and a width of 1.8, the overall result will be: 8x6x1.18 \u003d 56.64 m 2. We round the number upwards and get 60 m 2. For other rectangular slopes, the material is calculated in a similar way.

Calculation of the truss system

To calculate the cross section and pitch of the rafters, it is better to invite specialists, since the service life of the roof will depend on the calculations. From incorrect measurements, it will quickly sag.

Rafter beams must be 100x50 and 150x50 mm in size. The most suitable distance between them is from 60 to 90 cm. It depends on the weight of the material. To increase this distance, a crate is laid across. The moisture content of wood should not exceed 22%. For safety reasons, before starting installation, it is necessary to carry out antiseptic and fire-fighting treatment.

Before starting work, you need to check the roof slopes diagonally. The perimeter of the structure should be rectangular, and the fractures of the slopes and the ridge of the cornice should be horizontal. The slope of the roof for metal tiles must be at least 14 degrees.

Counting the number of hydro and vapor barrier layers

As a rule, films for hydro- and vapor barriers are produced in rolls of 75 square meters. It will not do without overlaps, so the usable area remains 65 meters squared. To calculate the number of rolls of insulation, it is necessary to divide the area of ​​\u200b\u200bthe roof by 65. The resulting figure is rounded up to a higher number.

To calculate the required number of self-tapping screws, the total area of ​​\u200b\u200bthe roof is multiplied by 8. That is how many of them fit on one sheet.

Calculation of the cost of the roof

The last question that probably worries all developers is how to calculate the cost of a metal roof. First of all, it depends on the area of ​​\u200b\u200bthe roof (the length of the ridge and slopes). Further, additional materials should be taken into account: heaters, hydrobarriers, etc. There are now many online calculators on the Internet to calculate the cost, but the resulting figure is unlikely to be accurate. As a rule, it is worth adding 10 - 15% to it. This is especially true for multi-pitched roofs and roofs with a complex structure.

The final amount will be obtained only after measurement on the spot according to the established rafter system.

The price of these tools must necessarily be included in the total cost of work, since they will definitely be needed when installing a metal tile structure. It should be noted that when cutting metal tiles, it is prohibited to use abrasive wheel, that is, Bulgarians.

General conclusions

So, metal tile is a fairly popular material that has long been used as a roofing. Before construction work careful calculation is necessary, however, it will not help to the end either, since as a result a lot of waste is generated, especially in the case of a hipped roof, and the cost of one square meter still does not say anything. In addition, one must also take into account a large number of fastening materials, which will increase costs by 7 - 8%. All these nuances are important when calculating the material for the roof, and not only metal tiles.

Metal tiles are in demand among the variety of modern roofing materials, and are mainly used in private construction for arranging various roofs, both single-pitched and double-pitched types, as well as roofs with a complex structure. Due to its not the lowest cost, the calculation of a metal tile for a roof must be carried out most accurately, so that as a result there is enough material and there are not too many extra parts left.

Material Features

The metal tile can be attributed to rigid roofing materials, it is characterized by high strength and durability. The contours of the wave of such a sheet are identical in shape to natural tiles. Due to this, the roof of any building covered with metal tiles looks beautiful, and the useful life of such a coating exceeds 50 years.

Other advantages of using metal roofing include:

• Cost savings due to relatively low cost and long service life;
• light weight - square meter metal tiles on average is about 6 kg, so it is easy to transport and lift up, this does not require specialized equipment. Also, such a weight does not exert a significant load on the walls and foundation of the building and can be chosen as a roofing material even with a problematic foundation;
• The absence of influence on the material of external factors - the unique structure and structure of the material itself allows it to be used in areas with different climates. In addition, it is not affected by the rays of the scorching sun, rain and snow, and hail and snow are not terrible;
• A variety of colors, which allows you to implement various design ideas and projects;
• Strength, which provides the metal tile with the ability to withstand loads, both during its installation and after;
• Fire safety - it does not burn and does not support combustion.

And although some argue that metal tiles cause noise discomfort during rain, this is not at all the case. At right choice the angle of the roof slope and the observance of the installation technology, no noise is heard during precipitation.

Metal tile - no the best choice when arranging roofs of complex construction, since in this case it is necessary to cut the material, resulting in a lot of waste and no savings.

An important feature of the installation of a roof made of metal is the installation of the crate. structures should be from 600 to 1000 mm, the distance between the bars of the crate is chosen 350 mm. The crate is laid on a waterproofing layer.

Varieties

Depending on the manufacturer, the dimensions of the sheets may vary, which should be considered when purchasing. There are several basic parameters, which are then used to calculate the number of sheets required for installation:

• Full length, which is measured between the edges of the edges. Its value can vary between 0.5 - 6 meters, depending on the manufacturer. The most popular option, with a length of 4.5 meters. It is convenient to transport and lift such a metal tile to the roof, and also use it for laying;
• Full width, also measured between the other two edges and can be from 1160 to 1190 mm;
• Sheet thickness - can be of various sizes, depending on the additional coating protective layers. The most common option is sheets with a metal thickness of 0.5 mm. Thinner options are characterized by increased fragility, while thicker ones are not easy to install and are used for buildings with a large roof area;
• Wave height and distance between adjacent waves. The standard wave pitch for all manufacturers is 185 mm, but the wave height varies between 0.5 - 0.7 mm;
• Symmetry and asymmetry. Waves can be either symmetrical or asymmetric, the most in demand are options with an asymmetric structure.

There are also parameters that are required when calculating the number of sheets of metal tiles, which take into account the useful area of ​​​​the sheet and overlaps. These options include:

• Usable length. For most manufacturers, it is in the range from 1050 to 3500 mm. It takes into account the overlap of sheets and is 110 - 130 mm less than full value due to the fact that during installation the sheets overlap each other;
• useful width. It usually ranges from 60 to 80 mm, and provides reliable protection against the ingress of water and snow into the room.

Attention! Sheets of metal tiles have an upper and lower part, which should be taken into account during installation. If during installation they are turned over and placed differently, then there will be a lot of waste and the complexity of the work will increase.

In addition to sheets, additional elements are also produced, which also have their own specific dimensions:

Installation of a metal tile is made by means of roofing self-tapping screws.

Calculation of elements

The calculation of elements for the installation of a roof made of metal tiles depends on the complexity of the roofing device. To begin with, the surface area of ​​\u200b\u200bthe roof is calculated. If it has a complex structure, then it is divided into simple figures, the area of ​​\u200b\u200bwhich can be calculated knowing geometric formulas. Then the areas of all the figures are added up, and the total area of ​​\u200b\u200bthe roof is obtained.

Important! The roof area is calculated taking into account the length of the roof slope, and not the dimensions of the building.

Depending on what dimensions of the sheets of metal tiles were purchased, their usable area should also be calculated. It is determined by the calculation formula for determining the area of ​​\u200b\u200bthe rectangle, since the sheets have an identical shape. Moreover, in some stores there is a service for cutting sheets according to the parameters specified by the buyer.

The resulting value of the roof area must be divided by the usable area of ​​​​one sheet. This value will indicate the number of required sheets of material. It is imperative to include a margin in the calculations, which should be at least 5%. It is necessary in cases where the sheets may be cut incorrectly, or the value is not rounded up when calculating.

To calculate the ridge, the length of the roof should be divided by the useful length of the element - 1.9 meters, and the resulting value should be rounded up. To calculate the wind profile, the useful length is also taken, the calculation is similar. It is only necessary to take into account the number of slopes on which this element will be installed and multiply its value by this figure.

To calculate the fastening elements, the roof area should be taken into account, and self-tapping screws should be taken based on the fact that about 6-8 self-tapping screws are required per 1 square meter of metal tiles. Depending on the choice of the manufacturer, the types of fasteners may also differ, usually they are indicated by the manufacturer of the metal tile. In addition, for additional elements, the number of fastening screws is calculated based on the fact that their fastening step will be 12-13 cm.

Complex roof structures

A complex roof requires a more detailed description of the calculations. In this case, all elements of the roof are drawn on paper, and broken down into simple geometric shapes.

It is not difficult to cut the material into simple rectangular elements, and a small amount of waste is generated. But when cutting diagonally, the amount of waste increases significantly. This must be taken into account when calculating.

When calculating both the number of sheets and additional elements, their useful dimensions should be taken into account, which, when overlapping, usually decrease by 10-15 cm.

At the moment, there are a large number of special calculators on the network that offer, after entering some parameters, to calculate the material. But in most cases, such calculations turn out to be inaccurate and with large errors. Therefore, an independent calculation will help save money and correctly calculate the volumes of materials, especially since it is not complicated and does not require knowledge of special formulas. It is only necessary to take into account the overlap parameters.

Metal tile is one of the main roofing materials. Online calculator serves to calculate the approximate cost of a metal tile. This service will be convenient and necessary for many users, because it allows you to pre-evaluate costs and compare different variants coatings.

Roofing materials for a roof differ in technical and operational properties. The shape of the roof can be different, it can be single-pitched, double-pitched, four-pitched. In order to calculate the cost on the site, it is enough to enter the initial data.

Types of roofs and roofs made of metal tiles

• Shed roof. The only pitched plane and the simplicity of the device are the undoubted advantages of the design. In low-rise construction of houses, this type of roof is used relatively rarely. Particularly suitable as a roofing system for high-tech buildings.
• gable metal tile roof. Two pitched planes are a standard solution for most houses and buildings. Slopes can be symmetrical or asymmetrical (with different form and slope angle).
• Chetyrekhskatnaya metal tile roof. The absence of fronts at the ends, triangular slopes are used. The appearance of the design is spectacular and presentable, it reliably protects from bad weather and evenly warms up. Atmospheric precipitation has little effect on the structure. hip roof from a metal tile (four-pitched) has a limited space under it, perhaps this is its only serious drawback.
• Warm roof. The attic or attic is insulated for use as a living space. Also, additional protection of the roof from the cold and bad weather allows you to increase the thermal insulation of the whole house.
• Cold roof. The design does not contain layers of insulation, others are often not used protective materials(from wind, humidity, steam, condensate). cold roof more economical, while the attic or attic space cannot be used as a living space in winter.

How to calculate the cost of metal tiles online

The roof consists of several basic structural elements. The top coating (metal tile) serves as a finishing decorative and protective layer.

The price of materials is formed based on the selected coating of metal tiles. The online roofing calculator is a great tool to help you figure out costs and compare different roofing options.

When calculated, the price on the calculator includes additional elements, such as: a ridge, wind and cornice strips, as well as self-tapping screws. In this case, the calculation is indicative.

Before calculating the price of a metal tile for a roof, it is worth deciding on the manufacturer and the name of the material, the type of coating. The sheet profile can have different dimensions in length and width, have different thicknesses and decorative and protective coatings. This must be taken into account when calculating the amount of metal tiles for the roofing system.

Professional calculation of roofing systems at Turnkey Roofing Company

Each type of material has its own specifics and cost. Preliminary calculation of a roof made of metal tiles allows you to choose the optimal sheet profile for the needs of the customer. The consumer can order the services of a turnkey roofing measurer when deciding to purchase roofing materials.

Take advantage of the calculator for calculating metal roof tiles on our website for subsequent ordering of material and installation of a roofing system.

Our company carries out installation work on the installation of the roof, offers materials with delivery in Moscow and the Moscow region. Roof tiles can be purchased with delivery to different regions Russian Federation. Warehouses are located in close proximity to the Moscow Ring Road.

If from all roofing materials, you have chosen a metal tile, then the first question that you will have is how much metal tile you need to purchase. This is logical, because before starting work on roof sheathing, you must purchase the right amount of metal tiles. This is not as difficult to do as it seems. It is only required to follow some rules, to know the area of ​​\u200b\u200bthe roof itself, as well as the dimensions of each sheet. With all this information, you can easily calculate how many tiles you need to cover your home. That is what we will do.

You will learn how to correctly calculate the metal roof tiles so that there are no extra parts left or you don’t have to go for additional consumables.

Rules for calculating metal roofing tiles

Metal tile - convenient and practical look roofing. I'm glad she's easy to work with. The profiles themselves are large, so installation is quite easy. I want to say right away that manufacturers of products make metal tiles standard sizes. They can be divided into two types:

• overall length and width;
• useful (working) length and width.

General indicators are the distance from one edge of the metal tile to the other. The minimum length indicator is 40 cm, the maximum is 8 m. The width of the metal tile is from 1.16 to 1.19 m. But, since in practice the parts are overlapped, a working length and width are required. This distance does not include overlap. Typically, the vertical overlap is 10 to 15 cm. The horizontal overlap is 6 or 8 mm. It turns out that the useful width is 1.11 m. But, if the roof has a slope of less than 8 m, then you can use one large sheet, and not join several in a vertical position. So, knowing the working width, you can perform the correct calculation. Let's look at everything with an example.

We determine the quantity

For calculations, you must have a calculator. If you do not know the width and length of the roof slope, then it must be measured. After all, sheets of metal will be attached from the ridge to the edge of the slope, so the length of the material will be almost identical to the slope from top to bottom. Only 5 cm will remain on the overhang. It is easy to take measurements when the roof structure is simple, for example, gable or shed. If the option is more complicated, it is better to invite a professional measurer who will do all the work.

Note! Metal tile specific coating. She is not symmetrical. What does it mean? And the fact that the profile can only be laid in one direction during installation. You will not be able to flip it 180˚ and use it in that position. In this regard, when working on a complex roof, there will be more waste of metal tiles. This is important to consider when purchasing.

What is required for calculations? You have to figure out how many rows will fit on one roof slope. It's not that hard. Then, it remains only to find out the number of profiles in one row. And then everything is generally simple. At first glance, it may seem that calculating the amount is difficult and time-consuming, but it is not. It is better to do everything in advance, so as not to regret later.

We count the number of rows on the slope of the roof

All that is required is the width of the slope and the working width of the profile. The total width of the slope is divided by the working width of the profile, and the finished figure is rounded up. Let's say you measured the roof along the ridge, and you got 10 m. And you also know that the working width of the profile sheet is 1.1 m.

Note! Each manufacturer in the instructions for their product indicates the working width and length of the material.

How many rows will there be? 10 ÷ 1.1 \u003d 9.09. It becomes clear that for your roof, 10 m long, you will need 9 rows of metal tiles, the working width of which is 1.1 m. We found out the first indicator. Now let's start with the number of profiles in the rows.

The number of metal tiles in one row and their length

To find out, calculate the length of one roof element and the length of the overhang. We talked about the fact that they come in from 40 cm to 8 m. It is very good to work with long sheets, since they leave a minimum of waste. But, they are extremely problematic both to deliver to the object and to the roof. That's why the best option it is customary to consider the size of one profile from 4 to 4.5 m. It is easy and convenient to work with them, delivery can be done by ordinary transport, and it will be more difficult to damage the material.

So, having calculated the size of the overhang from the cornice to the ridge, you got, for example, 6 m. Now, knowing the dimensions of the metal tile, you can find out their number in one row and, most importantly, the size of each profile. For 6 m, laying one profile will be problematic. You need to use two. Now we find out the required size of the first and second sheets. You need to use the formula: X \u003d A + B + C, where A is our slope length, B is the overhang at the eaves, C is the vertical overlap of the metal tile. Usually the overhang of the cornice is 5 cm, and the vertical overlap is at least 15 cm. In the event that the roof is small and only one sheet will be used, then the C number is not taken into account. If there are 3 of them, then two overlaps of 15 cm are considered.

For our sizes, use 3 pcs. irrationally. Two profiles are sufficient, in which the length of the bottom sheet is a multiple of the wave step of the metal tile. At the same time, 15 cm are added for an overlap and 5 cm. So, the total length of the slope with an overlap and a cornice will be: 6 + 0.15 + 0.05 = 6.2 m. The lower profile will have a size equal to the wave step. Often it is a multiple of 35 cm. You calculate your indicator indicated by the manufacturer. Add an overlap to it. It turns out that the size of the lower profile can be as follows:

• 35×2+15= 85 cm;
• 35×3+15=120 cm;
• 35×4+15=155 cm.

This list goes on. But, if we bring it closer to our indicators, we will get the possible length of the lower element in: 190 cm, 225 cm, 330 cm. And now we need to calculate the average length of the roof. The total figure with an overlap and a cornice was 6.2 m. To find out the average, divide it in half. 6.2 ÷ 2 \u003d 3.1 m. From the calculations that we carried out above, the ideal size for the lower profile will be 330 cm (3.1 m). This number is a multiple of the wave step of the metal tile. So, we found out that the lower element will have a length of 3.3 m. And to find out the indicators of the second (upper), you need: 6.2–3.3 \u003d 2.9 m. That's all. As a result: for your roof slope of 6 m, you will need to lay 2 sheets of metal tiles, one of which is the lower one, has a size of 3.3 m, and the second, the upper one, is 2.9 m.

Total number of metal tiles per roof slope

We shook our brains a little, now we can summarize what we have learned. On a roof measuring 10 × 6 m, 9 rows of metal tiles will be required, in which there will be 2 sheets each (3.3 and 2.9 m). Their total number is 18 pcs. Nine of them are 3.3 m each and nine are 2.9 m each. But, these are consumables for only one side. If the coating is gable, then it will take twice as much.

Note! Do not take goods back to back. It is better to take 10% more, in reserve.

We count additional elements and fasteners

In addition to the sheets themselves, you will need to purchase the following components:

1. Figure horse.
2. End plank.
3. Cornice plank.
4. Snow holders.
5. Lower and upper valley.
6. Adjacency plank.

Additional elements are produced in a standard length of 2 m. We already know the width of the cornice, it is 10 m. Therefore, we need exactly 5 planks for it. But, during installation, it is imperative to overlap, which is 10 cm for the eaves, and 30 cm for the valley. Other additional parts are calculated exactly according to the same scheme. It is important to know only the indicators (ridge, valley, end) and divide it by the length of the additional element.

In addition, you can not do without fasteners. Sheets of metal tiles are fixed with special self-tapping screws with a washer head, having seals. Due to the fact that the color of the hats is the same as the color of the material, they are not too visible. And how to find out their number? There is an average figure, which is 7 self-tapping screws per 1 m 2 of roofing. All you need to find out is the area of ​​\u200b\u200bthe roof slope. The area formula is quite simple: S=a×b. Since we have gable roof, then the formula will look like this: S=(a×b) 2 . For example, let's take all the same indicators of 10 × 6 m. S = (10 × 6) 2 = 120 m 2. If 7 self-tapping screws are needed per 1 m 2, then exactly 840 pieces will be required for 120. We simply multiplied the total area by the number of screws. Now it remains to go to the store and buy them. One package has 250 pcs. How many packs do you need to buy then? 840÷250=3.36. You will have to buy 4 packs to have a spare. If this is a lot and there is an opportunity to buy separately, then buy 3 packs exactly and 90 pcs. apart.

If we talk about the installation of additional parts, then 6 self-tapping screws are required to fix them at 1 m. They are sold in packs of 100. in a pack. All this is calculated individually according to the same scheme.

Summing up

Before proceeding with the installation of the coating, any developer will first sit down and count the number of consumable parts and find out the cost of the finished coating. This is a very important step. No wonder folk wisdom says: "Measure seven times, cut once." After all, without knowing exactly how many consumables will be required, you will not be able to complete the installation. And buying everything by eye is very stupid. Well, if the metal tile is not enough. At any time, you can go and buy the missing number. When it is in excess, then these are funds spent on the wind. Therefore, use the tips from this article and find out the required amount of metal tiles. Then all the work will go smoothly and without any problems.