How much metal roof tiles do you need calculator. Calculation of a metal tile - all the subtleties of calculating a profile roof. Correction of metal tile calculations

Advantages of a metal tile:

• When installing canvases, fewer seams are obtained, which additionally gives strength to the roof structure.
• Sufficiently sealed material, does not require special care.
• The light weight of the metal tile allows you to save on construction truss system.
• Sufficiently large size of the material, thanks to which you can cope with the installation in a short time.
• With proper installation, less waste comes out than, for example, with slate.
• Roofing from a metal tile gives aesthetics to any structure.

Dimensions of metal tiles

Metal tiles come in a variety of sizes, while distinguishing the useful length and width, and according to this, the working area of ​​\u200b\u200bmetal tiles. To determine the entire length of the metal tile, you need to measure the distance from one edge to the other. The full width is measured in the same way, which does not have such a huge difference in size as the length.

The length of the canvas can have a different value from 40 cm to 800 cm. Width from 116 cm to 119 cm. It is necessary to use the material based on the parameters of the roof, experts recommend - do not choose too large panels for self-construction. For example, it is difficult to lift a six-eight-meter sheet up, besides, you can peel off both the walls and the canvas itself.

The thickness of the web varies from 0.45 to 0.55 mm, while you should not trust what is written on the package, when buying, measure the actual thickness of the sheet with a micrometer.

How to calculate

The amount of material is calculated according to the standard scheme. The area of ​​​​one slope is calculated, and then summed up for the rest of the number of segments. For example, on pitched roof the length and width of the slope are measured, with all available roof structures, multiplying, we calculate the total area. The next step is to calculate the overlap of an individual canvas, and the total value of the edge of the overhang.

The overlap can reach up to 200 mm, and will not be included in the useful area, we reveal it in order to find out the useful area of ​​\u200b\u200bthe sheet. Having calculated what size the overhang area will be, you add it to the total roof area. Everything is simple.

It all depends on what material you will use. The waves on the material come in different sizes, but in any case, you can calculate the useful dimensions of any sheet, and overhangs do not present problems with calculations. This method implies that you have already decided what material you will install, and it remains only to calculate the number of sheets required.

No organization will undertake the installation of metal tiles until it has made all the required calculations.

In fact, it is more difficult to calculate a more complex design, but interestingly, the theoretical calculation with the actual result in this case has a larger percentage of the difference. Therefore, it is always better to take the material with some margin.

So, the main thing you need to know before calculating the amount of material:

1. Calculate the area of ​​all slopes.
2. Calculate the area of ​​the overhangs.
3. Calculate the useful dimensions of each canvas.

Calculation examples

Having done all the above calculations, and knowing the useful value of the sheet, the area of ​​\u200b\u200bthe roof, you can begin to calculate the required sheets of metal tiles. In fact, everything is simple:

• to the overall result of the roof we immediately add the value of the area of ​​\u200b\u200boverhangs;
• we divide the result obtained by the value of the usable area of ​​\u200b\u200bthe canvas, and thus, we get the number of required sheets.

Take, for example, 100 sq. m. plus the value of the edge of the overhang - 5 square meters. m. We take the working value of one sheet - 5 square meters. m, it turns out 105 must be divided by 5 and it turns out \u003d 21 sheets of metal tiles are required per 100 square meters. m. roof.

Second example.

See the picture below, we have all the dimensions to calculate the right amount of material to cover the roof of this house. As an example, let's take a standard canvas with a size of 3620 × 1160 mm, this format is often used. After summing up all the values: two slopes, a veranda, we will find out the total area. The house in the figure has - 123 sq. m.

How many canvases will be required for this building? We have a format of 3620 × 1160 mm, for which we first need to calculate the usable area. Let's take the wave width - this is 60 mm to subtract. Next, you need to identify the dimensions that will go to the end overlaps. Here, usually more is taken away than in width, this is from 100 to 150 mm. We will take 100 mm, I think ten cm is enough for an overlap.

Now, from the length of the canvas 3620 mm, we subtract the taken value of the overlap - 100 mm, we get - 3520 mm of the working length. Then we subtract the wave width of 60 mm from 1160, we get the working width - 1100 mm. Our useful canvas dimensions turned out to be 3520 × 1100 mm. In centimeters, you get 38720 square meters. see We bring to meter value, and rounded, which is necessary to bring the correct calculation.

Experts recommend rounding up. Using the calculator and rounding, in our example, in the meter equivalent, the size of one sheet will be 3.9 square meters. m. The value of the roof remains 123 square meters. m. divided by the working value of the canvas 3, 9 square meters. m. We enter the numbers in the calculator, we get the number - 31.53846153846154. It turns out that in order to cover this house, we need to purchase 31 and a half sheets with a size of 3620 × 1160 mm, if you do not round the number - 31.7 pieces.

How to reduce waste

There is probably only one way to solve this problem. As you know, all canvases are produced by manufacturers of a certain size, but there are companies that cut sheets to a given size.

You can accurately measure and place an order, which will also be covered with a protective top layer at the cut points. In this case, you can lay even 8 meter panels, with the calls of a specialist who will cut everything on the spot.

This method will significantly reduce waste, and thanks to the professional actions of specialists, you can not worry about a decrease in performance. roofing.

The disadvantages of this method include the following points:

• canvases over 5 meters long are more difficult to transport and store, unlike ordinary ones;
• a metal tile of this length is also difficult to install and lift;
• cost will be slightly more than self-assembly, because you will have to pay for an additional service.

Estimated cost of metal roofing

In the vast expanses of Russia, the cost of any product can vary significantly, metal tiles are no exception. The difference in the cost of the product does not depend on the region, but is primarily determined by the quality of the product and the brand of the manufacturer.

For example, in Moscow, for the popular brands of metal tiles Monterey, Supermonterey and Maxi, the cost is equal to today - 250 rubles per sq. meter. But in Novosibirsk, the same brands will cost you a little more - 260 rubles, but with delivery, which is also important. It can be concluded that the price of the product is almost the same in Siberia and in the capital, but taking into account delivery in Novosibirsk, it is a little more profitable.

Lesson check! Suppose it turns out, according to the above example, at 100 sq. m. of the roof you will need to purchase canvases, approximately 5250 rubles. Do you still think so? Do not forget that you need to find out the dimensions of the canvas, and calculate the usable area.

Advice! Buy a medium size product. On short sheets, it will turn out to be of little use, therefore, more material will be needed, which means more money.

A long metal tile is more economical in terms of waste reduction, but inconvenient to install. Recommended size for self construction 3620×1160 mm or 2220×1160 mm, but the number of waves may vary. The store consultant can tell you the exact number of materials required, provided you know the coverage area. Now you need to do the calculation of additional fittings.

Additional elements

Calculation of additional fittings

For a complete installation, additional fittings, the so-called additional elements, are required. Such details can be purchased both additionally and complete with a metal tile. First of all, they are necessary for the reliability of the roof, in especially unreliable places, and only then they can be considered as part of the scenery.

An element can be bought on average - 200 rubles per linear meter. But we need to think about what we need and why, and also calculate how much it will cost if we have to buy.

So, consider, we need:

1. Ridge, end strips, which will protect against atmospheric phenomena - rain, wind, and an adjoining strip - for additional sealing of various joints, for example, chimney. And this is only the most necessary, there are other additional details, and they are especially necessary if the roof system is complex, multi-pitched.
2. Snow barrier - to protect the drain from the sudden collapse of snow, eaves plank- protects against dust and dirt getting under the ridge. We will now consider how to calculate the most necessary components, and then, based on the calculations, you will finally decide what to purchase. To calculate the number of accessories you need:
   • measure the length of the ridge, everything will depend on what size the slats will be, since it takes 10 cm for the joints, the standard ridge is 2 meters, for example, if the ridge is 6 m long, then you will need to buy 4 slats, which is 800 rubles;
   • end strips are produced in different lengths, and are mounted on end slopes, it is calculated in a similar way, that is, taking into account that 10 cm should go to the joints;
   • junction bar - calculated according to the principle described above.

In addition, self-tapping screws are needed, their cost varies from 3 to 7 rubles apiece. After calculations, you can think about color, if you want your house to stand out and be visible from afar, then choose any bright color. Qualitatively made tiles do not fade in the sun and do not lose their qualities, and you can not worry that over time your roof will lose its original appearance.

Metal tiles are in demand among the variety of modern roofing materials, and is 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:

• Saving money, due to the relatively low cost and long term services;
• 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 with 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 the 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 from 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 using 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 calculation formula to determine the area of ​​a 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.

Before starting the calculations, you need to understand that the roof and the roof are not identical concepts. By “roof”, we mean the entire system that stands on the Mauerlat: rafters, lathing and counter-lattice, all kinds of insulation and, finally, roofing material, that is, the “roof” itself. The online roof calculator with drawings allows you to get data for both the roof and the roof - in a format convenient for you.

The finished calculation of the rafter system and metal tiles on the roof (as well as other types of roofing) can be saved both in the form of simple numbers by the number of building materials, and in the form of drawings and 3D models. You can save the result to a PC or mobile device, from which you entered the data, as well as send it by e-mail to yourself or to the specialist who was involved in the design of your object. By the way, before purchasing it is recommended to consult with him or with a professional estimator: online calculator for calculating the roof with roof drawings is designed for standard initial data - your object may have features that the service does not take into account.

Using the service, you can make calculations:

• single-pitched, gable, four-pitched, including hip roofs;
• any of the listed types of roofs, taking into account the attic;
• any of the listed types of roofs, given the different angle of inclination;
• roof area.

All data is entered in centimeters - for example, the length of the roof along the ridge, which will be 12 meters, must be indicated as 12,000 centimeters; The service also gives results in centimeters.

If necessary, under the main data, you can check the boxes for accounting additional materials: mauerlat, counter-lattices, waterproofing and insulation. The service takes into account the most used types and brands of materials.

After choosing a roof, everyone wants to estimate the budget needed to purchase roofing material. To do this, you need to know the dimensions of the roof and be able to correctly calculate the optimal number of sheets of metal tiles. For a simple design, this can easily be done by yourself.

Standard or custom tile sheets?

Many people do not know that sheets can be ordered in almost any length (usually from 0.5 to 6m), and not only standard sizes.

Standard sizes of sheets of a metal tile of the most popular profile "Monterrey": 0,5m; 1.15m; 2.25m and 3.65m. The lengths correspond to one-, three-, six- and ten-wave sheets.

Fig. 1: difference between standard and custom-made metal tiles

This fact allows you to purchase a roof with the maximum amount of usable area and, of course, save on the purchase. Suppose (Fig. 1), we have a slope length of 6.5 m and want to cover it vertically with two sheets. Custom sheets in this case will be 3.65m and 3m long (where 15cm is the overlap of the sheets). When standard sheets we will get two modules of 3.65 meters, i.e. extra 65 cm from each sheet of metal tile.

When ordering sheets of metal tiles for the size of the roof, consider a vertical overlap of approximately 15 cm.

Calculation of additional finishing elements

Let's immediately give an example of an image that shows all the necessary elements for finishing a metal tile:

The presented elements are used not only as components for metal tiles, but are also used in other roofing materials, having slight differences in shape.

The elements have a standard factory length - 2 meters. Since for greater tightness they are stacked on top of each other by about 10 cm, we will use the general formula to calculate them.

The number of a certain additional element for the roof = L / 1.9. Where L is the total length to be closed, 1.9m is the useful length of the standard element. The result is rounded up.

Example. Suppose the length of the roof along the ridge is 7 meters. Then the number of ridge slats will be 7 / 1.9 = 4. In a similar way, we independently calculate other elements of the metal tile finish.

The number of self-tapping screws for fixing metal tiles

A necessary element of any metal profiled roof is fasteners, thanks to which the material is securely held on the crate. For metal tiles, special self-tapping screws with a special rubberized washer are used. The most commonly used sizes are 4.8x28 and 4.8x35 mm, where the first value is the diameter, and the second is the length of the fastener. The average consumption of such self-tapping screws is from 6 to 8 pieces per square meter of roofing. Usually fasteners are released in multiples of packaging. The average number of such screws in a package is 250 pcs.

Between themselves, the sheets of metal tiles are fastened with self-tapping screws 4.8x19 mm in the upper part of the wave after about 20-25 cm. Packed in multiples of a package of 250 pcs.

For fastening additional elements (ridge, wind bar, upper valley and abutment bar), a self-tapping screw 4.8x50 or 4.8x70mm is used, it is also installed after 20-25 cm. Quantity in a package - 100 pcs.

Calculation of metal tiles for rectangular slopes

There are many online services for calculating sheets of metal, but they, as a rule, do not take into account the dimensions of the sheet and, as a result, give out the total roof area, which can differ significantly from the correct one. We also need to know the exact number of sheets and their length. To calculate the material, it is necessary to "decompose" the roof into separate slopes, representing various geometric shapes. In most cases, the roof consists of slopes shaped like rectangles, triangles and trapeziums. Let's start with the calculation of a rectangular slope.

To begin with, we specify the full and useful width (including the castle floor) of the metal tile sheet. The Monterrey profile has a total width of 1.18 or 1.19m. Useful is almost always equal to 1.1 m.

In the case of a gable roof, we have two rectangular slopes. Suppose each of them has dimensions of 9.5x6.5m (see Fig.). Based on the calculation of the useful and full width of the metal tile, 1.1 and 1.18 m, respectively, we get 8 full sheets of 3.65 m each and the same number of 3 m long. The overlap width will be 8.88m. We perform similar calculations for another slope. The uncovered area of ​​the roof can be covered by cutting sheets (3.65 and 3m) lengthwise into 2 equal parts. As a result, for a given roof size, 16 sheets of metal tile 3.65 m long and the same number of three-meter sheets will be required. The area of ​​the roofing material will be: (3.65m + 3m) x 1.18m x 16 = 125.55m² (the formula for calculating the area is a rectangle S=a*b). Rectangular slopes have the least amount of metal tile waste!

Please note that the area of ​​the metal tile will always be greater than the area of ​​the roof due to the longitudinal and transverse overlapping of the roof sheets.

In a similar way, you can find out the number of sheets not only for a gable, but also mansard roof(broken line) having 4 rectangular slopes.

Calculations of metal tiles for a complex roof

With a gable roof, everything is quite simple. But what if you have to count on a hip or hipped roof? The first consists of two triangles and two trapezoids. In the second option - only triangles (see the article "roof shapes"). Such complex roofs will require more roofing material, since the corners of the metal tiles will need to be cut. For more accurate calculation specialized programs are needed, for example, "Roofing Profi".

The program allows you to determine the number and length of roofing sheets for a roof of any complexity, as well as add the necessary cutouts in the slopes.

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 is a convenient and practical type of roofing. I'm glad she's easy to work with. The profiles themselves are large, so installation is quite easy. I would like to say right away that manufacturers of products make metal tiles of 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 don't know the width and length roof slope, then it needs to 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, perfect size for the lower profile there will be a size of 330 cm (3.1 m). This number is a multiple of the wave pitch 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.