Heavy clay tiles and inconspicuous slate are no longer the # 1 choice. Lightweight, strong and durable metal roofing is the leader in the construction market. When buying it, they pay attention to the dimensions on which it depends on how the roofing will serve.
The main parameters of a sheet of metal
When choosing metal shingles, five sheet parameters should be taken into account: width, length, thickness, profile height and wave pitch.
According to standards, the length of sheet metal shingles ranges from 40 to 365 cm.
The length of the sheet determines how many vertical joints will turn out.
For a sheet of metal tile, the standard length is considered to be within 365 cm
The best is the length corresponding to the size of the roof slope. By ideally fitting the sheets of metal shingles to the dimensions of the roof, it will be possible to make a homogeneous and ultra-strong coating with almost no seams. And an additional advantage of this approach to business is the reduction in the amount of waste and the consumption of fasteners within the normal range.
The ideal length of a sheet of metal tile will be such that it will close the slope from the bottom to the very top.
Once I needed sheets of metal tiles 6 m long. I had to place a special order at a roofing company. It turns out that, if necessary, you can find sheets of non-standard sizes (even 8 m long). True, a significant problem arises here: it is difficult to deliver huge sheets to a construction site and lift them to the roof without spoiling the protective coating of the material and the decoration of the walls of the house. Therefore, I consider the maximum length to be 4.5 m.
The minimum width of metal tiles is 111.6 cm, and the maximum is 111.9 cm.
The size is within narrow limits, because for the manufacture of the material, standard metal sheets are used, which acquire a special shape only after special processing on the machine.
The widest sheet of metal tile is a sheet with a width of 1190 mm
By the thickness of the metal tile, you can understand how strong and durable it is.
Typically, the thickness of metal tiles ranges from 0.4 to 0.6 mm. However, there are also thinner or thicker specimens.
Most often on the construction market you can see metal tiles with a thickness of 0.4-0.5 mm
In order for metal tiles to meet the expectations of the buyer, you need to know the following about their thickness:
- 0.35-0.4 mm - poor thickness, because it is afraid of transportation, installation and operation of the material, and also instantly oxidizes and is affected by corrosion;
- 0.45–0.6 mm - good thickness, indicating the strength and quality of the product, which can last about 15 years and is suitable for those who are interested in the price-quality ratio;
- 0.7–0.8 mm is a parameter for a particularly reliable and expensive roof covering, which, unfortunately, is difficult to install and puts a lot of pressure on the rafter leg system.
The smart home owner will stop at the average thickness. He will not even take a small parameter into consideration, since a thin roof will not withstand any load.
Profile height and wave step
Depending on the brand and manufacturer of the material, the wave height can vary from 1.2 to 8 cm.According to this parameter, the metal tile is divided into 3 groups:
- economy class - material with a wave height of 12–28 mm;
- middle class - a product with a wave height of 30–50 mm;
- elite class - material with a wave height of 50–80 mm.
Wave height 25 mm refers to the characteristics of economy-class metal tiles
The title of heavy-duty roofing material is carried by sheets, the waves of which are raised more than 5 cm from the base. With such a height of the "hills", the coating quickly and effectively gets rid of rainwater, and it also looks gorgeous.
A wave pitch is the space that separates the tops of two adjacent waves. In the standard version, this value can be equal to 18.3–18.5 cm. A metal tile with such a wave pitch is not afraid of moderate wind and snow loads and does not bend under the weight of a person who moves along the roof during repairs.
With an increase in the wave step, the stiffness of the material decreases and the working area of the sheet decreases. That is, choosing a roof covering with too much distance between "hills" can result in excessive costs. The likelihood of such a turn of events is especially high if short sheets are used.
If the distance between the waves of the metal tile is 250 mm, then the material is considered non-rigid
The value of the actual and useful width of the metal tile
The width of a sheet of metal tile can be considered as a complete and useful value.
The actual width is the distance from one edge to the other of the sheet, and the useful width is the size that is obtained after deducting the centimeters spent on overlaps.
Overlaps are formed as a result of the partial overlap of one sheet on another and have an important goal - to eliminate leaks and increase the strength of the roofing. For metal tiles, they are 6–8 cm. The manufacturer always indicates the specific size of the overlap.
The actual width of this sheet is 1190 mm, and the useful width is 1100 mm, because it is mounted with 9 cm overlaps.
The useful width indicator is used when calculating the working area of one sheet, which you need to know to determine the entire roof area.
To understand the meaning of this value, let's try to calculate the usable area of the popular in Russia metal tile "Monterrey" with a length of 3.65 m:
- We find information from the manufacturer that the nominal sheet width is 1.18 m, and the useful width is 1.10 m.
- Multiplying the length of the material by the nominal width, we determine the actual area of one sheet (3.65 x 1.18 = 4.307 m²).
- We calculate how many square meters. meters is the working area of one sheet (3.65 x 1.1 = 4.015 m²).
A 0.292 m² difference on one sheet may not seem like a big deal. But if you look at the roof as a whole, then its importance will increase dramatically. This can be seen with an example: for a roof with an area of 400 m², 100 sheets are required, and if the calculations are wrong, it may not be enough for 30 m².
Influence of sheet dimensions on weight and load
Knowing the parameters of a sheet of metal, and more specifically its thickness, you can calculate how much 1 m2 of material weighs.
How heavy metal shingles will be depends in large part on the weight of the galvanized sheet covered with polymers. Therefore, when determining the total mass of the material, it is customary to consider separately how much 1 m2 of galvanized and polymer coating weighs.
Metal tiles consist of several layers, the main of which is a steel sheet
In the process of calculations, you must use the following indicators:
- density of steel - 7.85 t / m³;
- zinc density - 7.12 t / m³;
- polymer density - 1.5 t / m³;
- the thickness of the polymer coating (polyester) - 0.025 mm.
The weight of a sheet of metal tile is determined as follows:
- Knowing that 1 m² of metal without galvanizing has a thickness of 0.46 mm, calculate its weight (0.46 x 1 x 1 x 7.85 = 3.61 kg).
- Using the index of the thickness of the zinc coating of class 1 (see table), find its mass (0.0381 x 1 x 1 x 7.13 = 0.27 kg).
- Calculate the weight of the polyester layer (0.025x1x1x1.5 = 0.04 kg).
- The resulting figures add up and find out that the total weight of a sheet of metal tile is 3.92 kg.
A sheet of metal tile weighs a minimum of 3.6 kg, and a maximum of 6 kg. With increasing thickness, length and width, the total mass of the material becomes larger. It makes no sense to calculate it yourself, since the manufacturer always indicates the weight of his product of a certain brand.
The weight of metal tiles is not comparable to the weight of ceramic material, because the difference between them is as much as 35 kg
Unlike ceramic tiles, the metal product weighs little, therefore exerts little pressure on the supporting structure of the roof.
To make sure that the metal shingles are lightly loaded on the rafter system and the load-bearing walls of the house, let's try to add the masses of all the materials of the roofing pie.
Let's assume that 1 m² of roof structure consists of the following building materials:
- 5 kg of metal tiles;
- 1.5 kg of hydro and vapor barrier;
- 10 kg of insulation (mineral wool);
- 15 kg lathing made of boards 25 mm thick.
It follows that the weight of 1 m² of the roofing cake is 31.5 kg. But taking into account the correction factor (1.1), it increases to 34.7 kg (31.5 kg x 1.1 = 34.7 kg).
Since the average thickness of the walls of a building and a structure made of rafter legs is able to withstand a pressure of 250 kg / m², we conclude that when using metal tiles as a finishing roof covering, there is a large margin for increasing the load due to other materials of the roofing pie.
Table: thickness of zinc film on metal sheet depending on class
|Zinc coating class||Zinc thickness (mm)|
Choosing the size of a sheet of metal, taking into account the type of roof
To select sheets of metal tiles of a suitable size, the following measures are taken before installation work:
- Calculate the area of the roof.
- Measure the length of the eaves and ramp.
- Based on the data obtained, they determine which format sheets will be more convenient to fix on the roof.
When the configuration of the roof does not allow to make the sheets of metal tiles fit it, it is allowed to use a material larger than necessary. No one forbids extra centimeters to just cut off.
It is not recommended to purchase short sheets, regardless of the type of roof. Due to the creation of overlaps of small-sized material, too much is consumed. In any case, the length of the sheet should be optimal, that is, oriented to the size of the roof slope.
As can be seen from the diagram, it is wiser to lay large sheets on the roof slope, cutting off the excess
If the roof is very long, then it is unwise to use the sheets that fit it just right. The fact is that huge sheets are difficult to lift onto a house without peeling off the decoration of its walls.
When installing a roof of a complex type, it is better to completely abandon the use of metal tiles. No size of this material will be able to facilitate installation work and ensure trouble-free operation of the roof.
Video: useful tips for choosing metal roof tiles
The best size of a sheet of metal tiles is 116x450 cm. This format of the material allows you to avoid unnecessary costs and easily mount the roof.
Decking for the roof - sheet size and price, features of the species
Today there is a huge amount of roofing materials. One of the most popular among them is the profile sheet. There are two important parameters to consider when choosing a roof sheeting: sheet size and price.
Each type of product has features that are important to consider when purchasing and installing. And the cost of a professional sheet depends on several factors.
Slate 5 wave | Dimensions of 1 sheet
The 5th corrugated slate or Euro profile appeared on the market relatively recently, its production has been established only in Ukraine in the city of Balakleya.
With the parameters identical to the 8-wave slate, the Euro profile has a unique sheet geometry. Instead of standard waves, this model implements flat troughs, which improves performance.
The parameters of 5-wave slate are as follows:
- length: 1750.0 (mm)
- width: 1130.0 (mm)
- thickness: 5.8 (mm)
- regulated by: GOST 30340-2012.
Installation of metal tiles: step-by-step instructions for self-work
Given the fact that the price of installing metal tiles has never been low, many people prefer to try to do everything they need on their own. Although initially it is worth familiarizing yourself with how much professional installation of metal tiles costs. The price of work per m2 starts from 250 rubles and may increase depending on the complexity.
The process of installing a roof made of metal tiles, the technology of which will be discussed below, consists of several stages, each of which has its own meaning and must be carried out properly.
Metal tile is an environmentally friendly material and does not contain harmful components
Laying metal tiles: preparatory stage and calculations
The first thing that needs to be done if it was decided to independently carry out the procedure for laying metal tiles on the roof surface is preliminary calculations. This is necessary in order to determine how much of which materials will be required and, accordingly, avoid unnecessary costs.
Let's start by clarifying some basic concepts so that in the future the question of how exactly a metal roof is arranged does not arise. If you look at the roof, which has already been covered with this material, you can see that it consists of rows that run across the slope and waves. The distance from one row to another is called a step.
There is such a thing as "model". This name means sheets of metal tiles, the pitch of which is 35 cm, and the number of waves is 6. On sale you can find sheets of modules 1, 3, 6 and 10.
Roofing pie installation scheme: 1. Rafter system, 2. Counter battens, 3. Waterproofing film, 4. Vertical battens, 5. Horizontal battens, 6. Horizontal battens, 7. Additional battens, 8. Wind board, 9. Gutter bracket, 10. Cornice strip, 11. Metal tiles, 12. Roof ridge. 13. Ridge seal, 14. Dormer window, 15. Thermal insulation material, 16. Vapor barrier material, 17. Attic lining.
Helpful advice! In addition to purchasing sheets of standard sizes, you can consider the option of individual production of metal tiles to order. Of course, it will cost significantly more, but in this way you can get exactly the kind of material that is right for you. The main thing to remember is that the length of one sheet should not be less than 45 cm or more than 7 m.
In the process of choosing the appropriate sheet size, you need to be guided by the fact that, after installation, the joints and waves converge in such a way as to form a single coating along the entire length of the slope. At the same time, it is quite simple to calculate the amount of material, taking into account the length of the roof and sheets.
When purchasing metal tiles, it is important to pay attention to some additional elements that are included in the kit and allow correct installation. This includes steel strips 2 m long, as well as steel sheets 200x125 cm, which should have the same color as the tiles.
In the process of purchasing metal tiles, you need to make sure that these auxiliary elements are available in sufficient quantity and meet all the requirements. For example, the standard plank incline level is 30 degrees. Although other options are possible at the request of buyers - from 11 to 70 degrees.
Before choosing metal tiles as a roof, you should pay attention to the angle of inclination of the roof
Important! 11 degrees is the minimum slope at which the installation of metal tiles is permissible.
DIY materials and tools for laying metal tiles
In order to carry out the installation of metal tiles with your own hands, you need to take care of the availability of some tools and materials in advance that will allow you to carry out all the work as simply and efficiently as possible:
- electric drill
- scissors for cutting metal
- a hammer
- mounting tape.
It is also worth taking care of the presence of a ladder and means for personal protection of the face and hands (glasses, gloves).
The fastening of the metal tile to the crate is carried out using self-tapping screws and a screwdriver
As for the consumables that will be required for the preparation of the base and fastening the metal tile, this list includes: waterproofing material, roof strips, shingles, as well as an aero roller, strips for the ridge and ends, a guide board and boards 2.5x10 cm. themselves, you will also need fasteners - self-tapping screws and special sealing washers for them.
Helpful advice! To give an attractive appearance to the coating, it is worth using decorative overlays.
Varieties by profile type
There are different types of metal tile profiles. Also, products may differ in the depth of the flooring. Many of us have an idea of what Monterrey or Cascade shingles look like, but recently there have been many new high-quality products with interesting designs. Let's take a closer look at the most popular ones.
Monterrey metal tile profiles have been familiar to us since the late 90s of the last century. This material began to be made in Russia from galvanized steel and relief, like ceramic tiles. But the origin of this material was the Finns. The exterior of Monterrey is quite recognizable by its rounded profiles and design in the form of asymmetrical and symmetrical steps. If you read the description of this variety, you can understand that when you buy you get high quality and inexpensive material. Its advantages include the following:
- The roof from Monterrey is able to withstand any kind of weather disasters. Heavy rain, hail, snow, heat or extreme cold cannot affect the quality and durability of this material.
- The installation process is usually pretty quick.
- The material can last more than half a century without replacement.
- Since no toxic and harmful materials are used in the production, the product is considered environmentally friendly.
- Affordable price is another plus in his favor.
- A wide range of colors allows you to choose a coating for any style of construction.
It is worth knowing: the profile dimensions of this type of tile with a sheet width of 118 cm are as follows: the wave height is 39 mm, and the pitch is 35 mm.
Thanks to the special rectangular waveform, the Cascade tiles are very recognizable. It resembles a bar of chocolate. The choice in favor of this type of coating is made by those who prefer economy, since the width of one sheet is significant. Cascade is a metal tile, the properties of which make it possible to cover roofs of a complex configuration.
As a result, you will get a neat, strict and proportional roof in a classic style. The parameters of the product are as follows: with a sheet width of 100-150 cm, the wave height is 2.5 cm, and the steel thickness is 1 mm. Among the advantages are:
- high moisture protection due to double capillary groove
- large selection of colors
- high accuracy of joining sheets.
The characteristics of Andalusia metal tiles are quite high, since they are manufactured on modern European equipment. Products with this name can be attached in a hidden way, which significantly increases the aesthetics of the coating. Moreover, thanks to a special lock, the sheets are joined as tightly as possible, which ensures reliable protection of the roof from leaks. Advantages:
- The main advantage that this metal tile has is the installation characteristic. Convenience and freedom of action for roofers is ensured by horizontal installation.
- The roofing accurately imitates Romanesque roofs.
- Product weight - 5.15 kg per sq. M.
- Figured cornice overhang for two-step models.
- Invisible docking.
- Leak-proof fit.
Classic forms of metal tiles, rounded sole and ridge part - these are the main features of products with the name Joker. Those who appreciate the classic types of tiles will definitely like this product with the correct wave and classic geometry.
If you are interested in the original metal tile, the species that appeared not so long ago surprise with the bizarre geometry of the profile, unusual design and increased wave height. The special profile configuration and significant wave height provide a three-dimensional effect of the coating pattern.
The products of this brand are distinguished by a reduced sheet width, which in no way affects its aesthetic characteristics. Due to their improved technical characteristics and appearance features, such sheets are best used for cladding high roofs of large houses.
This variety is produced in China and has a tall, complex symmetrical profile. This is a rather original and fresh solution in the field of metal profiles. These types of shingles are best used to cover modern-style houses.
Metal tile Grand Line
Among the general range of similar materials, the metal tile of the Grand Line brand stands out. The manufacturer not only retained all of the above positive characteristics, but was also able to increase the number of advantages:
long warranty, which is measured up to 50 years for polymer-coated metal tiles
expanded color range - more than 200 shades of metal tiles and accessories
perfect strength of 0.5 mm sheet
tightness, which is achieved thanks to the developed product technology.
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