The roofing material developed by the French company ONDULINE has been considered one of the most popular in its field for half a century. Today it is produced in many countries, and Russia is no exception.
Despite its great demand, not everyone knows what the usable area of ondulin is, and yet 
this information is necessary in order to accurately calculate the estimate. Incorrect data often leads to shortages, and then people are forced to buy more material. Of course, there is nothing fatal in this, but it is worth knowing that different batches differ in shade, and as a result, the risk of color mismatch increases.
What you need to know about ondulin
This material is considered a high-quality coating and can reliably protect your home from rain and snow if all installation work was carried out correctly. The service life is at least a quarter of a century. Moreover, the manufacturer gives a 15-year warranty on the product.
The cost of ondulin is approximately 40 percent higher than that of traditional slate. Therefore, if finances are limited, it is advisable to take the latter. Moreover, in the same price range There are several options for modern roofing materials that have similar characteristics and proper quality.
Ondulin copes well with sudden temperature changes, but at the same time it softens in the heat, while in the cold it becomes quite fragile. The latter circumstance explains the ban on working with this coating in winter.
According to the manufacturer, the material can withstand:
- hurricane (up to 200 kilometers per hour) wind;
- large volume of snow (more than 300 kg per square meter of roof);
- hail;
- showers.
It also has good noise insulation properties. This makes ondulin preferable if you plan to build an attic in the attic. Flexibility and lightness make working with it much easier - even an untrained person can handle it alone.
Since ondulin contains only natural materials, it is completely safe.
Its undoubted advantage is its rich range of colors.
A significant disadvantage of ondulin is its poor fire resistance. Already at temperatures above 230 degrees it can ignite. Moreover, after this it burns on its own, emitting a lot of suffocating smoke. For this reason, it is necessary to carefully weigh the pros and cons if your home is heated by stoves. In this situation, the company recommends insulating pipes from ondulin with special aprons and spark arresters.
Among other things, the coating also fades, since the manufacturer uses natural pigmenting substances. In this case, color saturation is often lost in fragments, resulting in spots appearing on the surface of the roof. In such cases, the roof is simply repainted.
Over time, bitumen may appear on its surface. The company does not consider this a defect.
Sheet sizes
Currently, three variants of ondulin sheet roofing are supplied to the Russian market. They differ in:
- appearance;
- design features;
- usable area.
For example, Smart tiles have special locking systems. At the same time, DIY has fewer waves than a standard sheet. And the Compact version has a small area compared to other products.
The useful area is the area of the roofing material without taking into account overlaps, both end and side. Knowing this value allows you to most accurately calculate the amount of ondulin for your specific roof.
It is only worth noting that the usable area of the same material may differ, depending on the slope angle of the roof slopes. The larger it is, the smaller the overlaps need to be made.
On steep roofs, ondulin is placed on top of the previous sheet by 1 wave, while on flat roofs - by 2. This approach is needed in order to protect the house from leaks to the maximum, because water drains quickly from a sharp roof, and from those whose slope angle minimal - very slow.
This rule does not apply only to Smart tiles. It is equipped with a special lock that ensures tightness in any case. The size of the sheet mentioned above is 1.95 meters by 96 centimeters. The area, respectively, is 1.56 square meters (1.9 by 0.864 m).
Ondulin DIY has dimensions of 2 by 0.76 meters. Effective area, depending on the steepness, the slope varies. So, if the angle is more than 15 degrees, then:
- longitudinal overlap – 1 wave;
- transverse – 170 mm;
- usable area – 1.22 sq. m.
More than 10 degrees and not less than 15:
- 1 wave;
- transverse overlap – 200 mm;
- area – 1.2 square meters.
The slope is gentle from 5 degrees to 10:
For standard ondulin, the size of which is 760 × 1950, the calculation of the usable area is carried out in the same order.
Ondulin Compact has a length of 1 meter and a width of 76 cm. Its usable area is:
- 27 or more degrees of slope - only 57 cm2;
- from 17 to 27 – 53;
- 10-17 – 50;
- 5-10 – 40 cm.
It is also necessary to mention that the height of the ondulin wave is 3.6 centimeters. There are 10 bends in a standard sheet, each with a step of 9.5 centimeters.
For those who don’t want to bother with calculations, it is possible to calculate exact amount ondulin on the official website. There is a special calculator that will also indicate the number of all necessary additional elements.
What is the usable area of ondulin and one of its sheets?
The usable area of one sheet of slate or ondulin tile is an important parameter that allows you to accurately calculate how much material you need to buy for the roof. All main dimensions are given in this article.
Dimensions of ondulin sheet and its usable area
Sheet material developed by the French company ONDULINE has been one of the popular materials for roofing for more than half a century. Today, ondulin is produced in many countries of the world, including Russia. Due to the nature of the material manufacturing technology, the color shades of different batches may vary slightly. To appearance the roof was aesthetically pleasing, it is recommended to use roofing material from one batch, having previously accurately calculated the required number of sheets.
Characteristics of ondulin
Ondulin is actively used in the construction of capital projects - residential, commercial and industrial buildings, and in the construction of light structures - pavilions, kiosks, canopies, gazebos. Due to its light weight, this sheet material is ideal for repairing old roofs: it can be mounted on top of flat, old roof coverings without fear of excess load on the foundation of the structure. The approximate load of the new flooring will be about 3 kg per 1 m2.
The technology for manufacturing the material is quite simple: cellulose fiber is pressed into corrugated sheets, reminiscent of traditional slate in shape. Then the base is impregnated with bitumen, upper layer The material is coated with a layer of mineral pigment and curable resins. The small thickness of ondulin makes it easy to install - the sheets are easy to lift onto the roof, cut, and use for laying on curved surfaces, since the material bends both in the longitudinal and transverse directions. The total area of the standard sheet is 1.9 m2.
The advantages of ondulin include:
- long service life (warranty - 15 years, actual service life - 50 years);
- attractive appearance;
- resistance to moisture and atmospheric influences (squally winds up to 200 km/h, temperatures from -40 to +80°C);
- high noise absorption coefficient;
- simple installation;
- resistance to biological destruction, acids, alkalis, oils;
- ability to withstand loads up to 300 kg/m2.
Ondulin, unlike standard slate, does not contain harmful substances and does not provide negative influence to your health.
Ondulin sizes
On Russian market Ondulin, manufactured under license from a French company, usually goes on sale. The length of a standard sheet is 2000 mm, width – 950 mm, ondulin thickness is 3 mm, wave height – 36 mm. The permissible error may be +10/-3 mm in length, +5/-5 mm in width, +2/-2 mm in wave height.
Each sheet of ondulin has 10 waves with a width of about 95 mm, which must be taken into account when calculating the material for roofing. When installing a horizontal row, it is necessary to overlap one wave wide to ensure the strength and tightness of the flooring. The vertical overlap when laying ondulin on a roof whose slope slope exceeds 15 degrees should be at least 100–150 mm. As a result, the useful area of one sheet element reaches 1.60–1.64 m2.
If ondulin is laid on a roof with a small slope, the lateral overlap of the sheet should be 2 waves, and the vertical overlap should be about 200 mm, which requires a special calculation of the usable area sheet material.
Before purchasing ondulin, it is important to calculate the roof, taking into account the usable area of the sheet material, so that in the future you do not have to purchase additional products from another batch.
Principles for calculating roof coverings
The easiest to calculate are gable roofs with an inclination angle of 15 degrees, each slope of which is a rectangle, and the overlap parameters are standard. In this case, it is necessary to calculate the roof area and divide it by the usable area of one sheet of ondulin - 1.6 m2.
If you need to calculate a complex roof, then you need to divide it into separate planes - rectangles and triangles, calculate the coverage area for each plane separately and sum it up, adding 5% for installation waste.
When calculating roof materials, you should also take into account the presence of windows in the roof plane, the use of elements such as a valley, ridge, covering aprons, eaves gutter, roof ventilation elements and other components of the roofing system. Their presence and quantity affects the calculation of ondulin sheets.
The need for accurate calculations
Obviously, in comparison with the total area of a standard sheet element, a difference of approximately 0.3 m2 is gained from each sheet of ondulin, and if this is not taken into account, the purchased material may not be enough to install the entire coating.
A competent approach to calculating an ondulin roof, taking into account the dimensions of the sheet elements, will allow you to avoid problems associated with the acquisition and delivery of missing material, which entails not only additional expenses for transport, but also disrupts the work schedule. In addition, a new batch of ondulin may differ in shade from the existing one, which will worsen the overall appearance of the roof.
Ondulin: sheet dimensions, usable area, width of ondulin for the roof
Dimensions of one sheet of ondulin and its specifications. Useful area and working size of ondulin sheets for correct calculation of the area of the roof to be covered.
Useful area of an ondulin sheet.
Ondulin roofing materials are presented in three types of sheets, differing in design, dimensions and usable area. For example, Ondulin Smart sheets are equipped with a Smart Lock, Ondulin DiY sheets have a smaller number of waves, and Ondulin Compact sheets, as the name suggests, are small in size.
The useful area of an ondulin sheet is the area excluding side and end overlaps. Knowing the usable area allows you to quickly calculate required amount roofing materials, to do this, it is enough to divide the total surface area of the roof by the usable area of one sheet. The useful area of an ondulin sheet depends on the roof slope. With an increase in the angle of inclination, the useful area of roofing materials increases, and when installed on flat roofs, it decreases.
The change in usable area is due to the following reasons:
– at large angles of inclination, ondulin is mounted with a lateral overlap in one wave, and at small angles of inclination, the lateral overlap is two waves;
– with an increase in the angle of inclination of the roof, the end overlap of the sheets increases, and as it decreases, it decreases.
Increasing the side and end overlaps is necessary in order to prevent leaks during heavy rain, with slanting rain and strong side winds. In addition, large overlaps prevent leaks when lenses form from melt water.
The Smart Lock is an additional barrier to water, so the end overlap of Ondulin Smart sheets remains unchanged at any angle of roof inclination and is 12 cm.
Useful area of Ondulin sheet
Type of roofing sheets
Roof angle
more than 15 degrees (> 27%)
10-15 degrees (17%-27%)
5-10 degrees (9%-17%)
(side overlap – 1 wave, end overlap – 12 cm)
(side overlap – 2 waves, end overlap – 12 cm)
(side overlap – 1 wave, end overlap – 17 cm)
more than 27 degrees (more than 50%)
17-27 degrees (30%-50%)
10-17 degrees (17%-30%)
5-10 degrees (9%-17%)
(side overlap – 1 wave, end overlap – 14 cm)
(side overlap – 1 wave, end overlap – 20 cm)
(side overlap – 1 wave, end overlap – 24 cm)
(side overlap – 2 waves, end overlap – 30 cm)
Useful area of ondulin sheet
Currently, three types of Ondulin roofing sheets are produced: Smart, DiY and Compact. Their main difference is dimensions. The useful area of an ondulin sheet depends on the angle of inclination of the roof.
Useful area of ondulin
Almost all residents of private houses appreciated the advantages of bitumen slate. It is worth noting that this coating has gained its popularity in just a couple of years, when most materials reach such heights only after 20-30 years. This phenomenal success is justified by the fact that the vast majority of private developers erected only gable rafter systems and used slate as roofing material. In Europe, ondulin is called Euroslate, and if you compare these products, you will notice that there is practically no difference, but the properties are significantly different. In this article I will explain to you how the useful area of ondulin is calculated, highlight the strong and weak sides I will describe this material technological process styling
Where does the name ondulin come from and how is it created?
It is not difficult to understand where this name came from if you have at least a little understanding of English letters. The material under the Onduline brand was released by a French company more than 70 years ago. Such a significant period did not in any way reduce the popularity of the material, but on the contrary, strengthened its position. If you didn't know, people in European countries choose their products very carefully, regardless of the area in which they will be used. As for our country, here people try to keep up with a more profitable acquisition, very often ignoring its harmful aspects.
An example is asbestos-cement slate. It has been used for several centuries, but only a few have decided to abandon this product and began to look for a suitable alternative. It is not surprising that she received ondulin. This material contains a large number of components that are safe for human health. If you don’t know how Euro slate sheets are produced, then I’ll tell you now.
- At the very beginning of production, a sufficient amount of cellulose is prepared. At the same stage, it is cleaned of debris and various impurities that can change the properties of the final product. After this process is completed, it is added special solution, making the cellulose very soft. The resulting substance is called pulp.
- The pulp moves along the belt and enters the conveyor, where it is rolled out over a surface to a certain thickness. Moving further, it dries, hardens and through heat treatment acquires a heterogeneous body.
- Modified bitumen is applied to the resulting cellulose mass on both sides and, after hardening, the material is stored from the stack.
- After the required number of sheets have been collected, they are packaged and sent for sale.
As you can see, many minor processes are omitted here, which only a plant employee can tell you about, but I hope the approximate scheme for the production of ondulin is clear to you. 
How to calculate ondulin for the roof
Calculating ondulin for a roof is not a difficult task at all; it is almost identical to finding the required amount of asbestos slate. TO distinctive features this material can be attributed to standardization. No matter what factory it is produced at, ondulin will have constant dimensions. This factor can influence the definition of a quality product, for example, if you happen to come across Euro slate different sizes, then know that this is a fake, and, therefore, no one is responsible for the quality.
Define good quality Ondulin can be based on the following characteristics:
- The sheet width is 950 millimeters. Such small dimensions make it convenient when laying on a small or medium area.
- The length is exactly 2 meters. This value was taken based on the length of the most popular slopes; as a rule, it is a multiple of two.
- The thickness of the material is no different from what it was at the production stage and is 3 millimeters. The manufacturer of ondulin warns that this parameter may fluctuate insignificantly, so you should not look for any decrease in quality here.
- Each wave of the sheet should have a height of 36 millimeters.
- The weight of a standard Euro slate is 6 kilograms. As for onduvilla, a covering of 1 square meter will weigh 4 kilograms.
- The area of each sheet is 1.9 square meters.
There is only one way to find the usable area of the material. To do this, take the sheet area and subtract horizontal and vertical overlaps. The resulting figure will show the required area. By the way, for a standard sheet of ondulin it will be 1.6 meters.
Advantages and disadvantages of Euroslate
Despite the fact that the material was made to replace harmful asbestos slate, it still has some disadvantages that negatively affect its popularity. The most pronounced problems include severely limited installation conditions. You can work with this material only in warm weather, somewhere around +10 +25 degrees Celsius.
If the temperature drops below the first value, then the bitumen included in the composition will begin to coarse and lose elasticity and, as a result, simply begin to crumble. In the opposite situation, the ondulin sheet will acquire an overly flexible state, as a result of which the material will sag under its own weight, which is unacceptable for roofing coverings. In addition, Euro slate is laid on a continuous sheathing. All these indicators can become critical when considering this product.
If you are going to lay this product on an outbuilding, be careful, as it does not have fire safety. The body of ondulin can withstand only 110 degrees; after exceeding this value, it begins to deform. If a fire occurs, euroslate will maintain combustion for a long time, so it cannot be used as a covering in bathhouses, woodsheds and other similar buildings. 
Now let's talk about the good stuff. The advantages of ondulin are as follows:
- Small mass. The lightness of this product greatly affects its installation capabilities. Euro slate can be laid on top of the old coating without dismantling it. To do this, the base is prepared (debris and vegetation are removed), and a simple system of beams is created on top, which will serve as the basis for the new material.
- Long service life. Despite the fact that ondulin contains bitumen, this product can withstand more than 100 cycles of freezing and thawing. This suggests that the minimum service life is 25 years, but in fact this value reaches 40. Reviews written on various construction portals will help you believe these numbers.
- High strength index. The rigidity of the ondulin sheet is determined by the wavy body. Thanks to this structure, it can withstand snow loads of up to 300 kilograms per square meter.
- As you know, bitumen products are distinguished by their very high waterproofing properties and ondulin was no exception. During the entire period of operation, you are unlikely to encounter a situation where, even if the roof is completely intact, it will leak. In addition, Euroslate does not contribute to the appearance of condensation, which is a definite plus.
- Dense leaf structure and its shape easily reflects all noise, so by sending ondulin to the roof surface you will forget about annoying sounds and be able to concentrate on anything.
If you weigh all the pros and cons, the material shows itself in two ways, so it’s up to you to decide whether to buy it or look for something else. 
Nuances of installation and transportation of ondulin
As you understand, ondulin is durable material, but as long as he is in optimal conditions. When purchasing this product, it is very important to inspect each sheet of Euro slate for defects. It is very important to identify cracks and chips here. In addition, pay attention to the size of the sheets and how they are stored. If violations have been noticed, you can safely leave such hardware store or market, you will not find quality products here.
After you have purchased the material, it must be transported to the construction site. Be extremely careful when loading and unloading. The fact is that bitumen material is quite soft in its structure and with a strong impact, the place of damage may be invisible, but after heavy rains it will begin to weaken and a gap will form there, which will cause a leak.
The material can be divided using a saw or suitable power tool. The sheets should be laid randomly so that their joints do not coincide. If you are missing 1-2 centimeters to the end of the slope, then under no circumstances stretch the sheet or try to secure it in this position. After the first frost, such a leaf will simply tear.
When purchasing roofing covering, it is very important to know its size and required quantity. Careful reading of this article will tell you how the useful area of ondulin is located.
Ondulin is a popular modern roofing material. Its demand is determined by the ease of installation, as well as the load resistance of the material. The construction name for ondulin is Euroslate. Our article is devoted to the dimensions, usable area and other characteristics relating to this material.
Features and purpose of the material
The features of ondulin are that this material has improved characteristics compared to regular sheets. Its canvases are as wavy as ordinary slate. The base consists of compressed cellulose impregnated with bitumen. Improved material characteristics are associated with special impregnation from thermal oils and minerals. This complex provides increased protection from moisture.
Let's take a closer look at the properties of the material:
- resistance to adverse environmental influences;
- long service life (manufacturers' warranty up to 50 years);
- excellent heat and sound insulation properties;
- external attractiveness;
- Manufacturers offer a lot of colors, making it possible to choose the ideal combinations;
- flexibility of sheets;
- sheets are not susceptible to fungal and bacterial infections;
- good moisture resistance.
If we talk about the disadvantages of the material, some buyers note that ondulin melts from strong heating by the sun, in the heat. At the same time, people complain about the unpleasant smell of melted roofing.
Another negative quality ondulin - noticeable fading of coloring pigments over time. When fading, the surface of the sheet becomes covered with spots of bitumen. Roofing material loses its attractiveness.
When laying ondulin, it is not necessary to use steam and waterproofing materials. Its properties make it possible to do without additional barriers. However, for insulation attic space which will be used as a residential building, it is better to additionally apply appropriate types of insulation.
Ondulin is used most often in private housing construction. The material is commonly found on roofs small houses and cottages. On two-story luxury buildings, tiles are used (sheets or pieces).
Today, builders have begun to use ondulin in buildings such as schools, clinics, etc. This type of roofing material is incredibly easy to install. In addition, ondulin can be laid on top of old slate. This type of renovation does not require the establishment to close due to roof repairs.
Ondulin can be divided into 2 types, depending on the coating.
- Matte canvas. Characterized by roughness. This surface contributes to a greater accumulation of small debris on the roof.
- Glossy canvas. The surface is bright and smooth. Snow falls off from such a plane in layers, so it is recommended to install snow guards. One of the disadvantages of glossy ondulin is rapid fading.
Let's look at the features of maintaining an ondulin roof.
- No special care is required for this roofing material. To avoid damage to property in the house, it is enough to regularly clean the roof from snow and dirt.
- To prevent ondulin from fading, it is recommended to coat the material with special paint.
The creator of the wavy material is the French company Onduline. The brand's products quickly gained popularity abroad due to their environmentally friendly material base. At the same time, the appearance of the product compares favorably with traditional slate or asbestos cement.
Not long ago, a joint Italian-French invention, “onduvil,” appeared on the building materials market. The development perfectly reproduces the look of natural ceramic tiles. Moreover, its composition is similar to ondulin.
Purified cellulose is also used for onduvil. The substance is soaked with pigments, then the material is pressed; when a thickness of approximately 3 mm is reached, the base is left to dry. After hardening, it acquires a specific waviness. Impregnation with petroleum bitumen occurs at the last stage of production. The finished sheets are stacked and packaged in a special film.
Ondulin always has standard sizes. If there are discrepancies in the width or length of the corrugated sheets, then this is a fake. The exact dimensions of standard sheets allow you to easily make the necessary calculations.
Options
Let's look at a few key indicators.
- The main parameter of concern to users who plan to install a roof is the strength of the roofing material. For ondulin, this figure is more than 1800 kilopascals. This strength is enough to withstand a significant snow load and the weight of several people. The standard load for Euro slate is 960 kg per 1 sq. m. meter of coverage. Usually breaks under higher loads rafter system.
- The manufacturer's warranty remains valid when the material is exposed to temperatures from -50 to +50 degrees. At the same time, the manufacturers themselves provide data that the material retains its properties even when exposed to temperatures up to 110 degrees.
- The noise insulation coefficient of Euro slate is about forty decibels. This is enough to not hear the falling raindrops.
- The cost of the material varies greatly depending on the country of origin (from 200 to 400 rubles). Additional elements also have their own price and are required to be purchased.
- The width of one sheet is 95 cm. This format is considered optimal for creating any roofing configurations.
- The length of the sheet is 200 cm. This “round” value significantly simplifies the necessary calculations.
- The standard thickness of ondulin is 3 mm. If there are minor deviations in this parameter, then this is allowed and is not considered a defect.
- The weight of one sheet is 6 kg. If we consider the weight of the onduvil, it is 4 kg.
Wave height
The bending height of a standard sheet is 36 mm. There are 10 bends in one sheet element. Manufacturers allow deviations in dimensions of no more than 2 mm. The nominal wave pitch is 9.5 cm. When making calculations, it is worth keeping in mind that roofs with complex wave elements will significantly increase material consumption, since overlapping installation will be required at the junction of each bend.
Features of calculating the required quantity
When arranging complex roofs, do not forget to include additional elements in the cost estimate: ridges, valleys, gables and other additions. In any case, for calculations you need to remember the area of one sheet, which is 1.9 square meters. m. When laying, the usable area of each sheet is taken into account, which is usually smaller and amounts to 1.6 square meters. m. Sheet overlaps can be both horizontal and vertical; this must be taken into account when making calculations.
To find out the required amount of ondulin, you need to calculate the area of the roof slopes and divide it by the usable area of one sheet element. It is recommended to add approximately 10 percent of the reserve to the resulting value. Additional elements are calculated separately. To get the most accurate calculation, it is recommended to use special computer programs.
Usable area including overlap
To calculate the number of sheet elements for the roof, it is worth taking into account the usable area. This is the surface of the material that is visible; overlaps and interlayers do not count. The overlaps can be in one bend, or they can be more significant.
The vertical overlap of elements on top of each other may also differ. It is interconnected with the roof slope angle. It is generally accepted that the working area of ondulin with steep slopes is approximately 1.3 square meters. m. This is due to the strong slope, in which there is a need for large overlaps with each other. Horizontal overlaps in this case can constitute not one, but two waves. With conventional roof slopes, the useful area of ondulin will be, as noted earlier, 1.6 square meters. m.
The building materials market is constantly expanding. Today, regular ondulin is being replaced by its more advanced analogue - Smart. This material, unlike its predecessor, is more convenient for installation, thanks to the markings applied to the sheets.
Some tips for installing roofing materials.
- During the installation of the roof, the ondulin has to be cut. To lay the material around the chimney, it is necessary to cut the sheets into very small fragments. In case of excessive overlaps, experts also recommend cutting the material. It is strictly not recommended to use for cutting electric jigsaw. Too small teeth on this power tool will become clogged with cellulose.
- To cut ondulin, it is better to use a regular stationery knife. With its help, smooth cuts are made, without crumbled edges. Cutting is done starting from the front side of the material. Next, the sheet is folded along the resulting line and turned over. The incision is extended further.
If you need to cut a sheet to length, then the cut is made not along the wave, but along the depression between them. Experts also advise lubricating ondulin sheets with oil. Hand saw It will go faster along blurred cuts.
- If the sheet is cut to width, then it is better to use a classic wood hacksaw. Features of the work include the mandatory application of preliminary markings. The sheet is then cut exactly along the line. A chemical marker is used for marking; some craftsmen use wax crayons. To mark the entire cornice row, it is better to use a cord.
- If a large number of sheets are to be cut, then it is more advisable to use a circular saw. Using the tool, a smooth, beautiful cut is made. Sometimes the teeth of a circular saw become clogged with cellulose. For cleaning, it is enough to make a one-time cut of a wooden block.
- Experts recommend using a grinder with caution when cutting material. Usually in this case, melted edges are obtained at the cut points. The temperature of the material increases due to the high speed of the working circle. Sometimes melted edges appear due to the fact that work is carried out in the sun, so it is better to cut in the shade or in a cool room.
- To fasten ondulin, nails with special heads are used. They are equipped with plastic plugs. If you use self-tapping screws or roofing nails, you can disrupt the installation technology. In this case, if your claims arise emergency situations no manufacturer will accept it.
- Hammering nails is more convenient with a regular hammer. One sheet should require about 20 nails. First, nails are driven into the bottom of the panel, into each wave. Subsequently, fastening is done through one wave in a checkerboard pattern.
- Experts advise closing the caps on the fasteners immediately after fixing them, otherwise difficulties may arise during subsequent work on the roof.
- To lift ondulin onto the roof, you can use a special strong twine. There are hooks on its edges. If the roof is not high, then the sheets can be delivered manually, without special equipment, since they are quite light.
- Some owners of houses covered with ondulin complain that the material gets wet over time due to frequent rains. To prevent this from happening to your roof, you should be vigilant when choosing a manufacturer. Some low-quality companies sell ordinary pressed cardboard, which is coated with coloring substances reminiscent of ondulin coating.
- The original ondulin does not get wet, it has the properties of the usual slate. Like slate, it has the ability to break. To prevent damage to the material on the roof, you should move along its surface only on special ladders.
The use of sheet material began in 1944 after it was invented in France. Today, the shape and size of ondulin can be very diverse, which allows you to create new interesting construction projects. Professional craftsmen recommend purchasing materials made in one series in order to successfully fit each product. In this article we will talk about the features of ondulin roofing, its characteristics and parameters.
Ondulin sheet is widely used in modern construction. It can be found both in projects of private houses and industrial facilities. The material has also found its application in the construction of lightweight structures, such as gazebos, canopies, kiosks and pavilions. The low weight of the products allows you to perform renovation work old roofing coverings. Thanks to the lightness, it will be possible to avoid unnecessary load on the foundation of the building.
For your information! The new flooring will create a load of approximately 3 kg per square meter. meter.
The material is produced using a simple technology in which cellulose fiber is pressed into wave-shaped sheets reminiscent of ordinary slate. After this, bitumen impregnation is carried out, and the upper surface of the sheet is covered with resin and mineral pigment. The small size of ondulin in thickness greatly simplifies the installation process, since the material is very easy to transport, move and stack. The products can be cut and bent, which allows them to be used on curved planes. The area of one standard sheet is 1.9 square meters. m. Among the positive characteristics of ondulin, the following properties should be highlighted:
- Long service life. Manufacturers indicate 15 years in the warranty certificate, but with proper care of the material it will last 50 years without losing its quality;
- Aesthetics and attractiveness of products. A wide range of products is represented by a huge variety color shades and forms;
- Has excellent resistance to impact atmospheric precipitation. This useful feature will help protect the building from strong wind, rain and temperature changes;
- Frost resistance. Euro slate can withstand 25 cycles of thawing and freezing;
- Withstands loads up to 300 kg per square meter. m.;
- The material is resistant to biological and chemical influences, that is, it is not afraid of contact with acids, alkalis and oils, and the formation of fungi is not typical;
- Simplicity installation process;
- Ondulin coating is very easy to repair;
- Products are resistant to mechanical damage, exposure to water, frost, and heat;
- Such designs are characterized by excellent sound insulation.
Attention! The material differs from ordinary slate in the absence of harmful impurities, which makes it safe for the health of people and living beings.
Standard sizes of ondulin sheet for roofing
For the production of ondulin, there are standards distributed to other countries under a French license. According to the prescribed standards, the dimensions of the ondulin sheet for the roof are as follows: the length of one product should be 2 thousand mm, width - 950 mm. In this case, the thickness should be 3 mm, and the height of the waves should not exceed 3.6 cm.
Attention! The permissible error is considered to be +/- 5 mm for width, +10/-3 for length. The height of the ondulin wave can be 2 mm more or less.
Each ondulin product consists of 10 waves, which must be taken into account when calculating material consumption when covering the roof. If you perform horizontal masonry, then the width of the overlap should be equal to one wave. This approach will improve the strength and tightness of the flooring. When laying the roof vertically, the angle of inclination should be taken into account. So, if the slope angle is greater than 15 degrees, then the overlap should not be less than 10-15 cm. Thus, the useful area of one work item is 1.6 square meters. m.
Important! If ondulin is laid on roofs with a slope of less than 15 degrees, then the overlap on the sides should cover two waves, and the vertical row should be about 20 cm. In this way, a special calculation of the useful area of the sheet is made.
Before you go purchasing material, you should find out how many sheets you will need for the roof of the building. This can be clarified using special calculations. In the next section we will find out how to determine optimal quantity ondulin for a specific roof.
Methods for calculating the amount of material
The size of an ondulin sheet may vary, so it is important to know not only the parameters of the material, but also the required quantity, so that you do not have to postpone work due to a lack of sheets. The easiest way to perform the calculation is for gable roofs with an angle greater than 15 degrees. In such structures, the slopes form rectangles, and the dimensions of the overlaps do not exceed the standard framework. The calculation is performed as follows:
- We calculate the total roof area;
- We divide the resulting amount by the usable area of one ondulin (1.6 sq. m.).
To perform calculations for buildings of a more complex type, they should be performed for individual sections. We divide the entire area into rectangular and triangular zones, and determine the amount of material for each of them. Then we summarize the data obtained and add 5% for waste, which cannot be avoided during the installation process. It is worth noting that when performing this task, you should take into account the presence of windows in the roof space. It is also necessary to take into account the installation of all additional elements, such as a valley, ventilation pipe, apron, gutter, etc.
Attention! The number of all additional roofing elements significantly affects the consumption of material, therefore, when calculating the number of sheets, they cannot be ignored.
If you approach the calculations wisely, taking into account the dimensions of the ondulin sheet and additional components, you can avoid most problems during installation. You can save on extra costs for delivery of missing material. Also, thanks to the accuracy of the calculations, it will be possible to complete the work on time. In addition, additional purchases may have differences not only in color, but also in shape, which can disrupt the strength of the structure and the geometry of the roof pattern.
Estimated cost of material
Not only the size and weight of the ondulin sheet may vary, but also its cost. It depends on the manufacturer and manufacturing features. In most cases, it is the price that is the criterion for choosing a roofing material, because everyone dreams of spending less money and at the same time getting high-quality coating. On pricing policy affects the color of the product:
- Green and black coatings cost on average 8.5-9 dollars. for a sheet of ondulin (in rubles it will be from 450-480);
- Onduline red or Brown– 7.5 – 8 dollars (approximately 430 rubles);
- Slate roofing material - from 6 to 6.6 dollars for one ondulin product (on average 350 rubles).
In addition to the main material for roofing work, you will need additional elements. Their cost:
- Skate can be purchased from 4.5 to 4.8 dollars per item;
- Endova - from 3.7 to 4.3 dollars per piece;
- A special lining mat, also called onduflesh, costs on average 17 – 19 dollars;
- One gable profile will cost you from 4.5 to 4.8 dollars.
So we got acquainted with the standard sizes of ondulin, which is most often used in the construction of roofing structures.
Sheet material developed by the French company ONDULINE has been one of the popular materials for roofing for more than half a century. Today, ondulin is produced in many countries of the world, including Russia. Due to the nature of the material manufacturing technology, the color shades of different batches may vary slightly. To ensure an aesthetic appearance of the roof, it is recommended to use roofing material from one batch, having previously accurately calculated the required number of sheets.
Characteristics of ondulin
Ondulin is actively used in the construction of capital projects - residential, commercial and industrial buildings, and in the construction of light structures - pavilions, kiosks, canopies, gazebos. Due to its light weight, this sheet material is ideal for repairing old roofs: it can be mounted on top of flat, old roof coverings without fear of excess load on the foundation of the structure. The approximate load of the new flooring will be about 3 kg per 1 m2.
The technology for manufacturing the material is quite simple: cellulose fiber is pressed into corrugated sheets, reminiscent of traditional slate in shape. Then the base is impregnated with bitumen, the top layer of material is covered with a layer of mineral pigment and curable resins. The small thickness of ondulin makes it easy to install - the sheets are easy to lift onto the roof, cut, and use for laying on curved surfaces, since the material bends both in the longitudinal and transverse directions. The total area of the standard sheet is 1.9 m2.
The advantages of ondulin include:
- long service life (warranty - 15 years, actual service life - 50 years);
- attractive appearance;
- resistance to moisture and atmospheric influences (squally winds up to 200 km/h, temperatures from -40 to +80°C);
- high noise absorption coefficient;
- simple installation;
- resistance to biological destruction, acids, alkalis, oils;
- ability to withstand loads up to 300 kg/m2.
Ondulin, unlike standard slate, does not contain harmful substances and does not have a negative effect on health.
Ondulin sizes
Ondulin, manufactured under license from a French company, is usually sold on the Russian market. The length of a standard sheet is 2000 mm, width – 950 mm, ondulin thickness is 3 mm, wave height – 36 mm. The permissible error may be +10/-3 mm in length, +5/-5 mm in width, +2/-2 mm in wave height.
Each sheet of ondulin has 10 waves with a width of about 95 mm, which must be taken into account when calculating the material for roofing. When installing a horizontal row, it is necessary to overlap one wave wide to ensure the strength and tightness of the flooring. The vertical overlap when laying ondulin on a roof whose slope slope exceeds 15 degrees should be at least 100–150 mm. As a result, the useful area of one sheet element reaches 1.60–1.64 m2.
If ondulin is laid on a roof with a small slope, the lateral overlap of the sheet should be 2 waves, and the vertical overlap should be about 200 mm, which requires a special calculation of the usable area of the sheet material.
Before purchasing ondulin, it is important to calculate the roof, taking into account the usable area of the sheet material, so that in the future you do not have to purchase additional products from another batch.
Principles for calculating roof coverings
The easiest to calculate are gable roofs with an inclination angle of 15 degrees, each slope of which is a rectangle, and the overlap parameters are standard. In this case, it is necessary to calculate the roof area and divide it by the usable area of one sheet of ondulin - 1.6 m2.
If you need to calculate a complex roof, then you need to divide it into separate planes - rectangles and triangles, calculate the coverage area for each plane separately and sum it up, adding 5% for installation waste.
When calculating roof materials, you should also take into account the presence of windows in the roof plane, the use of elements such as a valley, ridge, covering aprons, eaves gutter, roof ventilation elements and other components of the roofing system. Their presence and quantity affects the calculation of ondulin sheets.
The need for accurate calculations
Obviously, in comparison with the total area of a standard sheet element, a difference of approximately 0.3 m2 is gained from each sheet of ondulin, and if this is not taken into account, the purchased material may not be enough to install the entire coating.
A competent approach to calculating an ondulin roof, taking into account the dimensions of the sheet elements, will allow you to avoid problems associated with the acquisition and delivery of missing material, which not only entails additional costs for transport, but also disrupts the work schedule. In addition, a new batch of ondulin may differ in shade from the existing one, which will worsen the overall appearance of the roof.
Ondulin: sheet dimensions, usable area, width of ondulin for the roof
Dimensions of one sheet of ondulin and its technical characteristics. Useful area and working size of ondulin sheets for correct calculation of the area of the roof to be covered.
Dimensions of Ondulin sheet and its overall characteristics
No one goes for building materials at random - this is, at least, unreasonable. Before purchasing, we always calculate how much of something we will need. So, for example, when choosing ondulin for a roof, the dimensions of the sheet should be clarified in advance. After all, having taken an insufficient amount of material, you can, when purchasing more, be very upset when you see that the shade from the new batch is not at all the same, well, but you also don’t want to overpay. Therefore, in this article we propose to understand what sizes of Ondulin and its additional elements are, as well as how to calculate the required quantity of this material for the roof of the house.
Measuring a sheet of ondulin
French three-millimeter roof covering with the name ondulin (or euroslate) is based on organic cellulose fibers. For strength and color preservation, the material is impregnated with bitumen with special additives.
During the manufacturing process of standard ten-wave sheets, the following deviations are allowed:
- across sheet width: from -5 to +5 millimeters;
- along the length of the sheet: from -3 to +10 millimeters;
- by wave height: from -2 to +2 millimeters.
And now the parameters of the Euroslate sheet themselves:
- Sheet width – 0.95 meters;
- sheet length – 2 meters;
- wave crest height – 3.6 centimeters
- sheet thickness - 0.3 centimeters;
- leaf weight – 6 kilograms.
During installation you will also need fasteners and accessories. In addition to specialty nails, eaves, valleys, gables, gutters and eaves cores, windows, and roof vents will be needed. You should definitely take them all into account.
Dimensions of additional Ondulin elements
Determining the required amount of roofing covering
Typically, these calculations are undertaken by the company that will install the ondulin roof. Usually she sells it. However, if you want to cover the roof yourself with Euro slate, then to calculate its number of sizes, ondulin and school knowledge Mathematics will be quite enough. You just need to imagine the entire surface of the roof in the form of simple geometric shapes– triangles, rectangles, squares. Having easily calculated the area of each, add them all up - this is the roof area.
And now the most important thing is to avoid making the main mistake of choosing “dirty” sizes instead of “clean” ones. Otherwise, without taking into account the margin required to overlap the ondulin sheets. It is necessary, otherwise the quality of the roof will suffer. Therefore, simply multiplying the length and width, giving a sheet area of 1.92 square meters, is not suitable for determining material consumption. After all, about 0.3 square meters from this sheet will be spent on overlap.
Now more accurate calculations. When the roof is laid, the ondulin sheets overlap not only in the longitudinal, but also in the transverse direction. The overlap in length will be from 10 to 15 centimeters, and in width - one wave (9.6 centimeters). We get the “clean” dimensions:
With these dimensions of the ondulin sheet, its useful area will be smaller - from 1.6 to 1.64 square meters. And one more thing: do not forget that the roof will have to be trimmed along the edge, and 10 percent more material will be needed. Base yourself on these numbers when purchasing roofing.
Ondulin - dimensions of sheet and additional elements
When choosing and purchasing such flooring As Ondulin you need to know the dimensions of its sheet.
Dimensions of ondulin sheet and its price
Roofing material ondulin (euro slate) belongs to the category soft roof. Sheets of this material are made from organic fibers impregnated with bitumen at high blood pressure and temperature.
The outer side of ondulin is coated with dyes and special resin.
Thanks to this, the material acquires an attractive appearance and additional strength.
Benefits of ondulin
This roofing material has the following advantages:
- good sound absorption;
- high strength;
- simplicity and ease of installation;
- does not contain asbestos;
- ease of care;
- low price;
- condensation is almost completely absent.
How much does one sheet weigh?
One of the main advantages of ondulin is its low weight. One sheet of ondulin, having 10 waves, weighs 6.5 kg. For comparison, one square meter of ceramic tiles is approximately 40 kg. Due to this, the process of laying the material is greatly simplified. Even one worker without a partner can lift the sheets and install them. Ondulin sheets are light in weight and do not create significant pressure on the roof frame. Therefore, it does not need to be strengthened.
Ondulin sheet dimensions
A standard size sheet of ondulin has a length of 200 centimeters and a width of 96 centimeters. The thickness of the roofing material is three millimeters. However, ondulin is not inferior in its rigidity to metal tiles.
photo of ondulin sheets
The wave height of the sheet is 36 millimeters. Also, quite recently, SMART ondulin appeared on the building materials market, the length of which is five centimeters less.
Ondulin can withstand loads of up to 960 kg/s per 1 sq. m of roofing. Most often in such cases, only the rafter system and roof sheathing are destroyed.
Material strength
Wave ondulin has fairly high strength. A standard sheet can withstand pressures of more than 1800 kPa. This is enough to withstand a layer of snow during the winter months, as well as the weight of several workers.
Heat resistance of the material
According to the manufacturers, Euro slate does not lose its shape and characteristics at temperatures up to 110 degrees Celsius. But not all consumers agree with this. Many people claim that the edges of the roofing material melt in extreme heat. This also produces a special smell.
Sound insulation of Euro slate
The ondulin coating absorbs noise quite well, the value of which does not exceed 40 dB. When it rains, the noise will not be heard. It should be noted that the parameters of this material may vary depending on the country of origin.
Price per sheet
The cost of one roofing sheet is 200-400 rubles. Ridge elements cost 230 rubles, valleys - approximately 200 rubles, gable profile - from 230 to 250 rubles, cornice filler - from 30 to 50 rubles. The cost of the Ondufshesh lining carpet is in the range from 800 to 900 rubles.
Calculation of the amount of ondulin on the roof
The main mistake when calculating the amount of ondulin per roof is taking into account the actual area of the roofing sheets instead of the useful one. The actual area of the ondulin sheet is 1.9 square meters. m. However, the useful area of the sheet when the roof is tilted from 15 degrees is 1.6 sq.m. This difference arises due to the fact that ondulin is laid with an overlap in width and length.
Calculation of ondulin for a roof of complex shape
If the roof has a complex configuration, the calculation of the material is carried out differently. To do this, you need to divide the roofing surface into sections, calculate their areas separately, and then add up the areas.
The resulting value will be the total roof area. Next, you need to calculate the number of sheets using the above formula. It is better to buy roofing material with a small margin. The number of nails per sheet of ondulin for the roof is 20 pieces, per gable - 5 pieces, per roof ridge - 20 pieces.
Installation features
When choosing the pitch of the sheathing for ondulin, you should focus on the angle of inclination of the roof. If the slope does not exceed 10 degrees, then the ondulin sheets should be mounted on a continuous sheathing made of OSB boards or plywood.
The overlap in width is 2 waves, and in length - 30 centimeters. If the roof slope is 10-15 degrees, then the sheathing is made from boards or timber.
The sheathing pitch should be from 40 to 50 centimeters. The overlap in width is made in one wave, and in length - 20 centimeters. If the slope roof slopes more than 15 degrees, then the lathing step should be 60 centimeters. The overlap of roofing sheets is made in one wave in width and 17 centimeters in length.
Installation of sheets
The first step is to install the cornice strip. Next, the first row of ondulin sheets is laid along the eaves overhang. The installation of the first sheet is carried out flush with the gable overhang. Also, the sheet must extend beyond the roof eaves by at least 5 cm.
Each sheet of ondulin should be secured with 20 nails. First of all, fix the corners of the sheet. Next, fix the lower edge of the ondulin in each wave. The top and middle of the roofing sheet are fastened in a checkerboard pattern through one wave.
After laying the first row with the required overlap, proceed to install the second strip of material in the same way. It should be noted that even rows (second, fourth, sixth, etc.) must be started from half a sheet.
Installation of the valley and ridge element
At the next stage, the roof ridge is installed. It is mounted at the junction of two roof slopes. The ridge element is fastened using nails (in each wave of Euro slate).
Valleys are an element of roofs complex shape. They are installed at the junction of two roof slopes in inner corner. Before installing the valley, it is necessary to lay a waterproofing carpet. Laying the valley begins from bottom to top. In this case, it is necessary to maintain an overlap of 10-15 centimeters between the elements. The amount of overlap should be selected depending on the slope of the roof slopes.
To fix the valleys, I use special clamps nailed to the roof sheathing. It is not recommended to nail valleys through and through.
Ondulin sheets are laid overlapping on the grooves and cut off. This is done in such a way that the distance from the center of the valley to the edges is 5 cm on both sides. Filler is placed in advance under the ondulin sheets. Euro slate should be fixed in each wave.
By doing installation work Certain rules must be followed:
- laying of the material should be carried out at temperatures from -5 to +30 degrees Celsius;
- it is necessary to control the horizontal installation of roofing sheets;
- to cut ondulin you should use a hacksaw or an electric jigsaw;
- Ondulin should not be stretched, as its structure may be damaged.
Ondulin: sizes, photos, price per sheet
A standard size sheet of ondulin has a length of 200 centimeters and a width of 96 centimeters. The thickness of the roofing material is 3 mm.
Ondulin is a popular material for the construction and repair of roofs of various objects, both industrial and residential. Sometimes it is simply called Euroslate. Among the positive features there is a wide color scheme, convenient size ondulin sheet, attractive appearance. The simplicity of installation work and durability of service allows the material to be used for arranging roofs and commercial buildings. This construction material For more than half a century, it has been in great demand for roofing, repair and reconstruction.
When planning the installation of a roof, the question arises of how much material is needed. It often happens that in the middle of the construction process you have to buy the missing ondulin. To exclude such a situation, it is worth knowing the size of the ondulin sheet in advance. The amount of material required is calculated taking into account possible problems in construction. If you omit this simple recommendation, you may encounter the fact that ondulin of the required size or color will not be available.
Main advantages of the coating
The weight of each sheet of ondulin for the roof reaches 3 kg per square meter. This allows the coating to be laid on old roofing material, eliminating the need for classic installation. The French manufacturer guarantees the product for a period of 15 years. However, ondulin usually lasts much longer - up to 50 years.
A distinctive feature is the absence of harmful or toxic substances in the composition. Among the components, only clean and safe ones are selected that do not harm health. These include purified cellulose, which is additionally impregnated essential oils, petroleum bitumen, modifiers and natural pigments to obtain color.
The technology for producing roofing material is quite simple. The first step is to clean the cellulose from impurities and debris. After this, it is impregnated with modifiers with pigments, which make it possible to obtain the desired shade. The result is pulp, which is a moist substance. The next stage is pressing the pulp and drying it. As a result, ondulin acquires a characteristic wavy surface.
Additionally, the resulting cellulose base is impregnated with petroleum bitumen on both sides. The final stage is packaging the material in a special shrink film. Each package contains a label with the required information, including ondulin dimensions. At the same time, the useful area of ondulin reaches 1.9 square meters.
Among the advantages of sheets of roofing material, the following should also be highlighted:
- Resistant to all weather conditions. The leaf can easily withstand temperatures from -40 to +80 degrees, as well as wind speeds of up to 200 kilometers per hour.
- Optimal noise absorption coefficient.
- Ability to withstand loads on average up to 300 kilograms per square meter.
- Resistant to biological degradation, including exposure to oils, alkalis and acids.
- Aesthetic appearance.
- Impressive service life of ondulin.
- Simplicity of installation work and availability of independent implementation.
Variety of material sizes
One of the additional advantages of the roofing material is that the size of ondulin is standardized. This eliminates many problems when purchasing and makes calculating the required quantity extremely simple. Knowing the size, it is not difficult to calculate the required number of sheets for your own roof.
It should be understood that the standard sizes of ondulin sheets are also a guarantee of quality. If you see a product in a store with significant differences in width or length, most likely you are looking at a fake. It is best to abandon such material and choose a standardized option.
The dimensions themselves are as follows:
- The length of the roof sheet reaches 2000 mm. This was done specifically for the convenience of performing calculations.
- The width of the material reaches 950 mm. This size is considered the most convenient for organizing a roof of any size.
- The sheet thickness is 3 mm. Moreover, this indicator may have small errors both in the direction of increasing and decreasing thickness. A sheet with errors will not be considered defective.
- The area of one sheet is 1.9 square meters.
- The useful area of one sheet is 1.6 square meters, taking into account vertical or horizontal overlaps.
- The weight of an ondulin sheet reaches 6 kilograms.
- The height of the profile wave is 36 mm. Each sheet contains 10 waves with a pitch of 95 mm.
The required number of sheets for the roof should be calculated taking into account the transverse and longitudinal overlap. If you omit this, the purchased quantity will most likely not be enough and there will be a need to purchase additional material.
If you plan to install a standard gable roof, which has simple form and does not have any complex architectural elements; it is worth considering the slope of the slope and the roof area. For example, the area reaches 100 square meters, and the slope of the slope is 15 degrees. In this case, you will have to purchase 8 ridge elements and 63 sheets of material.
The installation instructions for ondulin sheets are standard when compared with others roofing materials. The weight of the sheet is small, and the dimensions are standard. That is why no difficulties are foreseen. However, it is worth paying attention to useful installation recommendations. Among them are the following:
Remember that the most difficult step is the choice of andulin material for the roof. Here it is important to take into account the area of the roof itself, how much the sheet weighs, how thick it is, the height of the wave, the width and length of the sheet. The calculation itself is made taking into account the overlap of the wave material. In this case, the choice will be made correctly and installation will seem like a simpler workflow.
Ondulin is a high-quality and sought-after material that will make any roof more attractive and reliable. Its price is affordable. A wide range of colors allows you to choose the shade that suits your specific home. The universal roofing covering also allows work with a curved roof due to its ability to bend. During operation, the coating easily withstands significant wind and mechanical loads and weather conditions. At the same time, the material has a low level of water absorption. This allows it to withstand about 100 “freezing and thawing” cycles without loss of performance.
Size of ondulin sheet for the roof: usable area, weight, overlap
Description of the advantages of the material, the size of the ondulin sheet for the roof and its usable area. Information on the weight of one sheet, overlap size and installation recommendations.
