Rules for the calculation of metal tiles

The roof of the metal has more advantages than disadvantages. In our time, this material is in high demand in all countries. Sheets of metal tiles are easy to install, this process takes a minimum of working time. The service life of the material is several decades, it looks aesthetically pleasing and attractive.

Metal tile is a roofing material made of galvanized steel, which is treated with a special PVC compound. The latter reliably protects the structure from the harmful effects of the environment and at the same timegives the original color. For three decades, metal has gained recognition on all five continents. Up to 85% of objects in our time is built using this material. There are many nuances that every homeowner needs to know.

Sheet thickness is differentiated in the range of 0.46–0.56 mm. When buying sheets, it should be noted that the calculated data that is indicated on the package and the actual state of affairs may differ significantly. This applies not only to the thickness of the sheet, but often - the length and width.

When planning the purchase of material, it is very important to correctly calculate what stock is needed. Usually it is 10–15% of the amount needed for repair work. Much depends on the complexity of the roof. For example, if there are too many joints and refractions, then additional centimeters of metal tile will be needed for trimming and fitting.

Roofing products are represented on the market by various brands. The most popular of them in Russia include:

• Monterey;
• Supermontery;
• Maxi.

The advantages of metal tiles have long been appreciated by both ordinary homeowners and professional builders. The obvious advantages include:

• the temperature range at which material can be exploited is quite wide: from -55 to +125 degrees;
• compliance with fire safety regulations;
• ease of installation: 1 square. m requires only 8 screws;
• it is possible to mount such roof all the year round;
• The material is very durable, not deformed.

Different polymer coatings can protect against various factors. There is a metal tile, where the emphasis is focused on protection from the sun's rays, there is also - from the influence of moisture and temperature, there is - from mechanical damage.

Metal tile - a material that varies considerably in size, especially in length and width. The length can vary from 35 to 820 cm. Width - from 115 to 120 cm.

When using metal tiles it is not recommended to use too large sheets. The best option is to acquire a medium-sized metal tile, so there will be a middle ground for the cost of purchasing money, logistic issues and installation difficulties.The average sheets are easier to calculate, correctly, the number of units needed to cover the usable area, for trimming becomes obvious, knowing the basic parameters of the object.

Standard middle sheets are good for the following criteria:

• they are easy to transport and store;
• at installation it is not necessary to use special equipment;
• no special storage space is required;
• the risk of material damage during operation is minimized.

First of all, the slopes of the roof are measured, you should also pay attention to the texture of the metal tile, which is noticeably different, for example, from slate.

As an illustration, you can say about the materials of Monterey and Takota. The length of both materials is the same, the width differs 1.17 and 1.18 m, respectively. It should be counted as follows: the useful area for both types of materials will be the same - 1.1 meters. The explanation is simple: "extra" centimeters will go into overlap.

As an example, the following can be mentioned: a slope with a length of six meters and a useful width of 1.1 will require six sheets of similar material. The calculation is as follows: 6: 1.1 = 5.36.Rounding is always upward. In this case, the figure is six.

Often there is a problem when there is excess material, whole sheets or half of them. To know the technology for calculating metal roofing is necessary. Before starting the calculation, you should consider the following factors:

• the length of all ramps;
• area of ​​overhangs;
• web parameters;
• parameters of the ridge.

Often the roofs are broken, so each section should be calculated separately. Then it is recommended to count the amount of material that goes on overlaps and plumbs. Often, manufacturers provide a service for cutting sheets of the desired size, in this case it is recommended to contact the professionals, you will need a properly crafted "pattern" of the roof.

Modern computers allow you to make a plan-scheme of the roof and the calculation of the number of metal tiles using the program. Manually doing such work is not difficult; you should only use millimeter paper to properly respect the proportions and scale.

Some customers manage to make an order with sheets that are even 6–8 meters long, thus saving a significant amount of materials, which is spent on trimming and overlapping. Tangible savings in such circumstances happens only when the roof areas exceed much more than 100 square meters. m and there are special devices to raise such dimensional products to a height. In addition, the installation of such sheets requires highly skilled craftsmen, so the cost of the work can be high.

The vertical overlap of the sheet metal is about 20 cm, it should be understood that this parameter depends on the angle of the roof. If the angle of inclination of the quadrilateral or duo-pitch roof is small, then more material is required for waterproofing and the size of the overlap is required.

When counting the number of sheets at the stage of drawing up a project, it provides an opportunity to calculate the parameters of the skates, if necessary, to consider the issue with an increase in the size of the batten that goes beyond the gables.

The size of the overhang is usually about 45 cm, a lot depends on the thickness of the material and the level of sheet rigidity. The plummet is needed, it effectively protects rain from leaking under the roof, protects the top of the wall of the object. It is very important when drawing up a calculation to take into account the width of the ridge element, the ridge of which has blades, for example, 16 cm will provide an opportunity to tightly close the gap between the roofing sheet and the ridge. This is necessary in case the size of the sheet is not enough.

Ramps are adjusted by adjusting the fillies. If the weight of the roof is too large and the angle of inclination is small, then in this case the rafter system should be strengthened, that is, take a step between the guides not 50 cm, but, for example, 40 cm.

The best option is to mount sheets that are about four meters long. Up to 20 cm of metal tiles usually go to plumb lines, about 10 cm to overlaps.

The material varies considerably in the "waves", which can be completely different. It is impossible to begin work until a clear picture of the amount of material required is obtained. To get the required number of sheets, you should:

1. Add the area data to the overhangs.
2. Divide the resulting amount by the value of the used area.

As an example, you can take 100 square meters. m roof and add to them the area that goes to the overhangs, for example, 6 square meters. The hypothetical area of ​​a single sheet is 6 square meters. m. 106 meters of total area divided by 6, it turns out the required number - 18 sheets. If the number of sheets turned out to be fractional, then it is necessary to round the obtained data in a big way.

When installing metal tile it is impossible to do without various accessories, which plays a significant role. Such components are also called additional elements. The first will require the following "parts":

• the horse;
• end strips;
• junction bar;
• snow barrier;
• curtain rod.

The first element protects effectively from various precipitations, protects from wind. Slats effectively protect joints from moisture. Snow barriers effectively protect gutters from snow collapse. Plank curtain prevents the penetration of microparticles under the ridge.

The first thing you need to know the length of the skate, goes to the joints approximately 8 cm. The standard ridge is 2 meters. If the length of the skate is 8 m, then you will need to buy 5 planks. The end strips can be of different formats, but they can be calculated using the same technology. Do not forget about the screws, they also need a certain amount.

• There is in the professional environment the term - the forbidden length of the sheet metal. That is, cutting the material in length on the wave is not recommended. If you need to make cuts, then they should be made strictly according to the instructions.
• When choosing a material for the roof of the house, it is recommended to consider the thickness of the steel minus the PVC coating. This need arose because manufacturers often manipulate the thickness of the polymer coating and at the same time save on metal.
• The modular metal tile favorably differs from the standard one in that there is no waste of material, the overlaps are minimal and standard. Modules snap on a special mount that completely eliminates moisture from entering the sheet.

• To raise such products to a height is difficult, moreover, the risk of damage to both the material itself and the walls of the object increases significantly.Therefore, it is important to take this fact into account in advance and think over the process of transporting raw materials directly to the repair site.
• During the work it is recommended to use a special table, where all data on the format of sheets are reflected.
• When cutting material, be sure to use metal shears. You can not use the grinder or a hacksaw, where there are small cloves.
• It is necessary to mount a metal tile independently at an angle of inclination from 20 degrees. Otherwise, you have to do extra overlaps.

More information about the intricacies of the calculation of metal, see below.