Technology for replacing slate with corrugated board. How to properly cover the roof from slate to corrugated board? Cover the roof with a profiled sheet

Not so long ago, the most ordinary slate was extremely popular as a roofing material, which fit quite easily and was inexpensive. But this material is fragile, often breaks, which requires the replacement of sheets or complete dismantling and laying a completely different coating.

An example of roofs made of slate and corrugated board. Compared to slate, corrugated board is more resistant to weather conditions, so it retains its appearance longer.

Previously, the old roof was stubbornly changed to the same material, which still required over time. repair work. But the development of modern building technologies and the production of materials that are more advanced in quality and properties make it possible to successfully change the slate coating to another one that is not too expensive, but compares favorably with strength and durability, not to mention excellent appearance.

Today we will talk about such a type of construction work as replacing slate with corrugated board, explain the advantages of such a replacement, and suggest what additional materials are needed for this.

Decking to replace slate

A profiled sheet, or corrugated board, is a metal sheet that is processed in special machines in a cold-rolled way, after which it is covered with a layer of zinc (or another mixture), often with a polymer paint layer. The most popular polymer is polyester, which is available in all colors. Plastisol, pural are considered more expensive, but also more reliable coatings.

Profiled sheeting is often compared with metal tiles, since their properties are almost the same, they differ only in appearance. The profiled sheet does not imitate tiling, it is a corrugation in the form of trapezoidal or wavy protrusions, giving it additional rigidity and strength.

Old slate for a new one needs to be produced every few years.

It is hardly possible to determine which of these materials is better, since each has its own unique characteristics.

Today, corrugated board of the following types is produced:

• wall, which is most often used for wall cladding;
• roofing, or bearing, which can be used for a variety of purposes, including for the construction of roofs and fences of great height;
• formwork sheets.

The width of the sheet can be very different, but most often it is in the range from 980 to 1850 millimeters. The thickness of the sheet that can be used to replace the roof is 0.5 millimeters, although sheets are also available in thicknesses from 0.55 to 1 millimeter. The choice of a sheet of a certain thickness depends on the climatic conditions in which it will be used.

When replacing slate with corrugated board, it is better to immediately purchase material seven to eight tenths of a millimeter thick - this best option. The height of the corrugation is also different and ranges from fifteen to one hundred and thirty millimeters.

The main advantages of corrugated board, in comparison with slate and any other roofing materials, are the following:

• the profiled sheet is lightweight, which allows not only to quickly and easily organize its delivery to the construction site and lift it up, but at the same time not to carry out work to strengthen the truss system;
• corrugated board has double protection against the negative manifestations of climatic conditions, precipitation, corrosion;
• it is quite difficult to damage or break through the profiled material, it is not afraid of tree branches, hail and snow loads;
• the service life of corrugated board is up to fifty years, which is incomparable with several years of operation of slate;
• corrugated board, unlike slate, does not fade in the bright sun, its color is preserved for many years, it does not require frequent painting and other repair and restoration work;
• you can lay a profiled metal sheet on your own, this does not require expensive specialist services, and even do-it-yourself laying allows you to make the roof warm and protect it from leakage;
• the cost of corrugated board is low, the only exception is pural covering.

Accessories for replacing and laying corrugated board

When replacing a slate coating with corrugated board, you must immediately take care of purchasing the necessary components and additional materials, which, however, are not very numerous.

Depending on the design plan, you may need:

• ridge strips to protect the uppermost, horizontally lying edges of the roof slope, in places of fractures at an angle;
• end strips, allowing to block the end part of the roof;
• valleys for the design of internal joints of the roof;
• strips of external and internal corners, which protect the roof from excess moisture.

In addition, during the work, self-tapping screws will be needed (their number should be determined taking into account the fact that on square meter will account for eight pieces), waterproofing membrane, heaters.

Decking as roofing

It is very easy to lay corrugated roofing on the roof, even two unprepared people are enough for this, and they will cope with this work in one day.

Replacing slate with corrugated board involves the following stages of work.

1. First you need to completely dismantle the old slate, trying not to damage the truss system. After that, the roof itself should be carefully examined, to identify all the places to be replaced or repaired. wooden elements it is better to immediately soak with antiseptics, replace rotten and cracked ones with new ones.
2. An overlapping waterproofing film is attached to the rafters. In this case, it must be ensured that it does not have damage, breaks and other defects.
3. Now you can lay the thermal insulation material. As a rule, mineral wool in rolls and polystyrene foam in slabs are used.
4. The corrugated board begins to be fixed from the ends, while the overlap is one or two waves, which depends on the angle of the roof slope. In places of overlap, the sheets must be carefully fastened together, for flat roofs additionally, special sealants are used to protect against moisture.

It is possible to fasten the corrugated board only with the help of self-tapping screws that have rubber gaskets (except for the valley), which allows you to protect the material and structure from moisture, corrosion, and other damage. Self-tapping screws can be taken with colored heads so that they do not stand out against the background of the roof, this will give it a more aesthetic appearance.

It is very important to carefully calculate the amount of material before starting to replace the roofing so that you do not have to keep the roof open for a long time.

A quality roof is important element any building, be it high-rise or small Vacation home. Most of the houses built several decades ago and having slate roof, no longer meet modern requirements - slate is no longer the most practical material for roofing, and, in addition, it tends to wear out quickly enough.

In this case, it is advisable to cover the slate roof with corrugated board. This material meets all modern requirements for thermal and waterproofing, has high strength and, at the same time, is durable, and also has a presentable appearance and ease of installation.

Advantages of corrugated board

Roof covering is not the easiest operation and some builders prefer not to change technologies for a long time. However, covering the roof with sheets of corrugated board has a number of advantages over slate, due to which its use will be a more profitable option when replacing roofing.

Decking, also known as trapezoidal sheet, has the following advantages over traditional roofing:

• small thickness and, as a result, less weight;
• high strength and durability;
• high-quality protection against precipitation;
• ease of installation.

Decking is made of metal by cold rolling and has a thickness of not more than 1 mm, respectively, its weight will be less than that of a slate of equal sheet area. In addition, due to the material and wave shape, it has high strength, longer service life and copes well even with heavy rainfall.

Also, the service life of the sheets is affected by the presence of a special coating - galvanized or colored polymer. Due to the possibility of painting in almost any color, this material has a much greater aesthetic appeal compared to slate, and at the same time, it is much easier to mount it, since the metal is well drilled.

Varieties of corrugated sheets

In order to qualitatively cover the roof with a profiled sheet, it is necessary to choose its variety correctly. There are three types of this material:

• C - the thinnest;
• HC - medium thickness;
• H is the thickest.

Profiled sheet type "C" has a small thickness and a low wave profile, not exceeding 44 mm. Due to its characteristics, it is used as a material for decorative sheathing of fences and buildings, as well as for laying as a roof covering for gazebos and other small structures.

The profiled sheet of the "NS" type has average characteristics compared to other types of this material: its sheet thickness is up to 0.8 mm, and the wave size is from 35 to 33 mm, which makes it possible to use it to cover the roof of small residential buildings, which most often are private houses and cottages.

Profiled sheet type "H" is distinguished by the largest possible sheet thickness and wave height: they range from 1 to 2 mm and from 57 to 114 mm, respectively. Its main area of ​​application is covering the roof of large buildings, use as a roof covering for industrial facilities, as well as formwork in the construction of foundations.

Sheet stacking method

After the choice of the type of profiled sheet and its purchase is made, they cover the roof. The main method of carrying out this procedure involves laying sheets with an overlap.

In this case, it is important to take into account the steepness of the roof slope, since the amount of overlap depends on it - the smaller it is, the larger the overlap should be, and the more material may be needed as a result.

With a standard slope in a private house, the roof should be covered with an overlap of 15-20 cm, and when installing a roof in a country house, which most often has a steeper slope, the overlap can be 10-15 cm.

Work order

In order to qualitatively cover the roof with corrugated board, it is recommended to carry out the procedure in two stages:

• arrangement of the crate;
• laying sheets.

The choice of the method of framing depends on the type of attic: if it is assumed that it will be unheated and, as a result, not residential, then laying roofing material is sufficient for framing. It is important to remember that when installing sheets, the roofing material must be securely fastened to the rafters in order to prevent it from rolling down from the roof slopes. To do this, it must be securely fixed - this can be done, for example, with a stapler.

If the attic is planned to be made into a living space, then the roof should be insulated by arranging a crate with thermal and waterproofing. For this, modern special-purpose materials are used - insulation and membrane films, which allow creating favorable conditions in the attic and providing reliable protection from the formation of condensate. In extreme cases, you can use the same roofing material, but its effectiveness is lower at times.

Sheet stacking

Covering the roof with a profiled sheet is quite easy, and you can guess how this is done without extra instructions, but some nuances should be taken into account. First, to fix the sheets, it is better to use special roofing screws with a rubber washer, providing waterproofing of the coating.

Secondly, it is necessary to ensure that the edge of the sheet is in the hollow, and not on the crest of the wave. This will significantly increase the strength of the structure, as well as facilitate its installation.

It is also important to note that if the wall is high enough, the most convenient way to transport the sheets to the roof is to use a joist. Also, if the roof is gable, you can use a long rope, which is pulled through both slopes and with its help the sheets are pulled up.

Before covering the roof with corrugated board, it is necessary to dismantle the previous coating. It is important to start doing this on days when rain is not expected. It is equally important to do this in almost calm weather. But even if weather forecasts promise dry, windless weather, it is better to stock up on film, which you can close the attic space just in case.

When removing a slate coating, you will need the following materials and tools:

• nail puller;
• several wooden bars;
• ropes;
• a pair of strong hooks.

You will need all these materials for effective and safe work for dismantling and lowering the old coating from the roof. We carry out the work in the reverse order of installation, that is, you need to start dismantling the coating from the ridge. Next, proceed to the removal of the upper rows of slate. So sequentially remove all the rows, reaching the cornice overhang. Roofing nails are removed with a nail puller, under which they put wooden block or a piece of board for the convenience of performing work. When the crate is completely bare, it is inspected and, if necessary, the exited and rotten sections of the structure are replaced.

To lower the slate with your own hands from the roof, use the holes in the material that remained after the roofing nails. Hooks are inserted into these holes, and wooden blocks are placed under them to facilitate sliding.

Attention! Lowering slate sheets on ropes alone without using hooks is much more dangerous.

It is better to change slate for corrugated board not immediately on the entire roof, but in separate sections. For example, you can first dismantle the slate from one slope and lay a profiled flooring on it, and then work on another slope. So you will be insured against weather surprises.

Rafter system repair

If the roof is being replaced, then before that it is necessary to check the integrity and condition of the old truss system. It is important that the rafter system meets the requirements of reliability and safety. It is necessary to inspect all rafter legs. They should not be damaged by insects, cracks and rotten areas.

If worn rafters are identified, they must be replaced with new elements that are treated with antiseptic impregnations and fire retardants. Before replacing the slate with a new coating, you need to check the evenness of the slopes. To do this, do the following:

1. Screws are screwed in the corners of the slope so that their hats are a couple of centimeters higher than the rafters.
2. We pull the cords diagonally across the slopes. You can also use a level to check the evenness of the surface and identify the presence of protrusions and recesses.
3. If at the point of intersection the cords barely touch each other, then the slopes are perfectly even.
4. Otherwise, it is necessary to carry out measures to level the roof slopes. To do this, use an edged board, which is attached to the beam by means of bolts.
5. After leveling the extreme rafters, they can be used as beacons and check the evenness of the rest of the rafter system.

Small irregularities in the roof can be leveled with an edged board. And those elements that are completely worn out are replaced with new, treated with special compounds. Revision and repair of the roof truss system can be done independently if you have minimal experience in the field of construction and repair.

Lathing installation

It is necessary to completely dismantle the crate if the old waterproofing has become unusable. The waterproofing carpet is attached directly to the truss system using a stapler. Strips of waterproofing material are rolled out and laid across the direction of the rafters and fastened with an overlap of 10-15 cm.

Tip: to ensure good ventilation of the under-roof space, it is necessary to lay the waterproofing carpet not tightly, but with a slight sag.

1. First, a counter-rail is nailed to the rafters over the waterproofing. To do this, use a bar with a height of 30-40 mm. It will provide the necessary ventilation gap under the roofing.
2. Further, a crate is stuffed across the counter-rail and the direction of the rafters. To do this, you can use a board that is fastened in increments of 30-40 cm. Work begins from the cornice overhang, moving towards the ridge. Above the ridge and along the edges of the cornice overhang, it is better to make a continuous crate.
3. The ridge part is covered with an additional layer of waterproofing.
4. After that, wind boards are installed.

Installation of profiled sheets

The roof is covered with a profiled sheet, lifting it along specially laid boards or bars. To facilitate climbing in an outside wave, you can drill a couple of holes for the rope. It is important to choose a place for holes, which will then be blocked by a wave of the top sheet.

Important: during the transportation of the profiled sheet, try not to damage the polymer layer, as this will contribute to the corrosion of the coating.

Installation is carried out in compliance with the following rules:

1. Mount sheets start from the cornice overhang, having previously installed a drip.
2. The next row of sheets should overlap the previous one by 20 cm with a roof slope of 15-45 °. And with a slope of less than 15 degrees, an overlap of 30 cm is made. The overlap of sheets adjacent in a row is 1-2 waves.
3. For the convenience of fixing the metal profile on the crate, you can mark the rows.
4. We fasten the corrugated board with self-tapping screws with a rubber sealing washer.
5. After installing the profiled sheets, a ridge element is attached to the slopes. To ensure ventilation of the under-roof space, a porous sealing tape is laid under the edges of the ridge additional element. It tightly fills the corrugation of the corrugated board, protecting it from the ingress of debris and insects into the ventilation gap, but does not prevent the passage of air.

roofing requirements.

The vast majority of developers choose the material according to certain criteria, namely: price and durability. To some extent this is true, but far from effective. To choose the right roofing for a specific case, you must first study the requirements for such products.

• Moisture resistance. This indicator will talk about how the product copes with the repulsion of moisture. Some materials do not have high values, so they are mainly used in arid regions.
• Durability. The longer the life of the material, the better, this is understandable. But it is worth noting that a lot of factors affect this parameter, so it is better to look at the average value and rely on stability.
• Sustainability. This parameter shows how effectively the material copes with the negative impact of the environment on it. This refers to precipitation, wind and other external loads.
• Strength. The coating may have good stiffness but low strength. For effective use, you need to look for something in between these qualities.
• Tightness. Everyone knows that a lot of precipitation falls on the roof. So that they do not penetrate into the inside of the roofing cake, it is very important to create an airtight plane.

If you have access to regulatory documents, you can find a more detailed list of requirements there, but this is quite enough to pick up quality roofing products.

Now, let's move on to the materials themselves.

Asbestos wave slate

If you are looking for something to cover the roof of a house inexpensively, then this product is just for you. However, it has some drawbacks, but let's talk about everything in order.

Asbestos slate is made from asbestos fibers and a binder mixture. The output is a quality product, with good rigidity, which is set by the waves. Their number can be from 6 to 8. Of course, you can find other types of slate, but they are unlikely to meet the requested requirements. In addition to all this, the canvas can have standard dimensions and reduced ones.

Not so long ago, the roofs of all private houses were covered with slate sheets, but what actually led this product to such a high popularity? Let's look at the advantages of asbestos slate.

• Cheapness. This is the first thing developers look at when trying to find the cheapest way to cover a roof. The price of this material is not really high. The fact is that all the components for its production are taken from natural resources, therefore, a lot of such material can be made.
• Strength. As already mentioned, due to the waves, the canvas is given optimal rigidity. In addition, the asbestos sheet has good strength indicators, but is very fragile.
• Durability. The slate coating can lie on the roof for about 30-40 years without maintenance, or more than this period, if the surface is periodically cleaned of growths and the canvas is painted. The use of paint will not only protect the material from the harmful effects of the environment, but also reduce the release of asbestos dust.
• Sun resistant and non-flammable. Due to the inclusion of non-combustible components, the material is completely resistant to open fire and ultraviolet radiation.
• Good sound insulation performance. On the surface of the sheet there are special strips that reflect the noise coming from the outside and do not let it into the attic.

Reading the above points, you probably thought that this is an ideal material for roofing. This is true, but depending on which building they cover. Numerous studies have shown that during the operation of asbestos slate, a certain amount of harmful substances that have a negative effect on the human body. This problem can be solved by painting the surface. In addition, a simple type of roof can be distinguished, and this often scares away many developers.

Ondulin

This material began to be produced in France in the 1945s, but it became widespread only after a few decades, since ordinary people after the war had no time for the selection of roofing material. In European countries, ondulin took root very well, and many developers abandoned slate and switched to it without hesitation. But the vast majority of Russians confidently abandoned bituminous slate, citing the high cost of the product.

The material is made from natural cellulose mass, which is mixed with a bituminous substance and special thickeners are added to everything. The output is a wavy material with small dimensions and weight. The color is set by adding an admixture of pigments. In my own way appearance it remotely resembles asbestos slate, which is why some roofers call this product euroslate.

To date, ondulin has undergone a number of significant changes in composition and quality and is practically a new material, but in an old shell. Benefits include properties such as:

• Moisture resistance. Due to the high content of bitumen in the composition of the product, this parameter is very high level. The moisture coming from above has no chance to get into the roofing pie. Of course, if serious mistakes were made during installation, then water can still penetrate inside.
• Ecological purity. Since the composition of the sheet does not contain harmful toxins, the euroslate is safe for the environment.
• Small mass. Due to the use of natural cellulose, a thin sheet weighs practically nothing, so the canvas cannot create serious loads on the bases, and this is already an excellent reason for saving.
• Ease of installation. Laying a rectangle small in size and mass is much easier than a heavy sheet of metal.
• The cover can be used as an additional one. To do this, the old coating is laid wooden frame, essentially a crate. Euroslate sheets are mounted on it and the roof is ready.

Well, of course, you can not ignore the cons.

• Canvas deformation. If a discharged crate is used as a base, then after a few seasons it will be possible to notice some deformation of the sheets. In places where they are not supported by boards, there will be indentations.
• Flammability. Due to the large amount of bitumen that is part of the material, it burns perfectly. In connection with this feature, this product is strictly forbidden to be used on public buildings and structures.

• Low service life. If you purchase products from well-known and high-quality manufacturers, then the average duration of use of such a canvas will be in the range from 15 to 25 years. As for fakes, the canvas will not last even 10 years.
• Loss of saturation of pigments. Color change occurs after only a couple of years and is naturally not good.
• Installation limitation. For the device of such a roof, it is very important to choose the optimal temperature. The fact is that bitumen becomes brittle in the cold, and in extreme heat it practically flows. Optimal conditions for mounting ondulin it is 10-20 degrees above zero.

In general, the material is good, but it is highly undesirable to use it in regions with high rainfall.

Decking

Today, profiled sheets can be compared in price with asbestos slate, so I put them in the second place of the cheapest coatings. If you immediately rejected slate and are looking for something to cover the roof of the house inexpensively, then corrugated board is the best solution.

The profiled sheet is produced from rolled steel using high quality European equipment. One sheet contains several layers. The price range of the product depends on their quantity. For example, if a sheet is covered with a protective layer and nothing else decorates it, then it will be as cheap as possible. And if polymer layers are added to it, then the price naturally rises.

It should be noted that not all polymer layers can set good quality coatings. Some of them are low quality, they will peel off the metal after a couple of seasons. In addition, at installation work the probability of violation of the integrity of this layer is significantly higher compared to the use of high-quality polymers. As you understand, the price of high-quality products is much higher, therefore, you will have to choose: for what purposes to use this coating.

At first, profiled metal sheets did not attract private developers much because of their poor quality. But over time, when production began to use new technologies, everything changed in better side. Today, this material can be safely called universal. It is used not only in the roofing industry, but throughout the construction industry.

I will not deviate far from the topic and go directly to the advantages of a profiled sheet.

• Strength. When rolling a steel sheet, stripes remain on it, they are called waves. The higher the wave, the greater the rigidity of the sheet of metal. In addition to the wave height, it is important to pay attention to the thickness of the metal itself.
• Does not burn. As you know from the laws of physics: metal is not a combustible material, therefore, such a coating can be used as a roof on public buildings and structures.
• Relative cheapness. I have already spoken about price jumps a little higher. In fact, the fewer layers a sheet includes, the cheaper it costs. And of course, the price is also affected by their quality.
• Continuous operation. Although the metal itself does not withstand prolonged exposure to moisture, it is protected by additional layers. First of all, the addition of zinc to the composition of the metal immediately reduces the likelihood of corrosion. As an additional protection, polymer layers are applied to the metal.

• Light sheet weight. The roofing grades of the profiled sheet are very light in weight, so there is no need to create a reinforced truss frame, it is quite possible to get by with something simple.
• Great leaf length. Thanks to this fact, you can safely purchase a sheet of metal that will fit your slope. The minimum number of joints will ensure good tightness of the roof and, as a rule, long-term operation.

By her own metal roof a good thing, but do not forget about the shortcomings.

• Roof decking has a smooth surface. Of course, this is not bad in a sense, because the removal of precipitation in winter time year will occur naturally, but all this will be a disadvantage. If you live in snowy regions of the country, then you will have to install snow retainers so that the snow does not avalanche.
• High thermal conductivity. A thin sheet is not able to retain heat leaving the roofing room, therefore, a large amount of energy will have to be spent on space heating.
• Low soundproofing. Noise coming from outside will echo through the attic space. You will even hear the birds landing on the roof, not to mention the rain.

The last two drawbacks can be eliminated by laying a thick insulation, but then the total cost of the entire roofing system will increase significantly.

metal tile

Metal tile can be attributed to the already middle class building materials. It looks good on absolutely any houses. In addition, imitation of natural tiles allows residents to rise in the eyes of neighbors or guests.

This product is still produced from rolled steel, but using a different technology than corrugated board. This sheet of metal has a more pleasant appearance, but otherwise I don’t see a difference. All the same protective components made of polymers and zinc. The only thing is that metal tiles can be made from non-ferrous metals, such as aluminum or copper. However, there are few such enthusiasts.

I would like to note that today there is a lot of this coating in the construction markets. If you do not know how to cover the roof of the house, then choose a metal tile from the following options:

• Andalusia
• Shanghai
• Monterrey
• Cascade
• Valencia

All of the above types are good feedback from different classes of developers. But do not blindly rely on advice, study the material yourself and only then decide whether to buy it or not. If you do not know what material to cover the roof of the house, then it is better to seek help from specialists. This product is very similar to corrugated board, so I will not consider its positive and negative sides, if something is not clear, then see the previous paragraph.

Before considering the following coating, I would like to tell you a little about condensing moisture, because this is the main enemy of metal roofs.

Condensation occurs due to excessive humidification of the air in a certain room. Since the rafter system is the skeleton of the entire roofing system, we will protect it first of all. The attic space must be well ventilated, otherwise all elements will rot and fail. The same applies to roofing cake. Here, the materials will not rot, but will lose all their useful qualities.

To natural ventilation coped with its duties, it is necessary to calculate the airflow and ensure an unhindered exit of air. The vents should be under the cornice overhangs. Their height, as a rule, is in the range of 5 to 8 centimeters. Having ensured the influx of air masses, you need to take care of the withdrawal of moistened ones. For this, a perforated ridge is installed. It contributes to the removal of steam from inside the room and, in addition, blocks access to the attic space for various pests.

If you are considering this particular material as a covering, then keep in mind that it is better to roof in warm and dry weather. Then the wood will not be able to soak in moisture and will remain dry for a long time. Otherwise, you will start operating the roof immediately with a large amount of moisture, and this can seriously undermine the quality of the truss system.

Many developers do not understand one detail. It seems they have chosen the material, but they still don’t know what is the best way to cover the roof of the house. There is only one answer - what suits you best. Rely on individual preferences and create individual house of your dreams.

bituminous tiles

It is cheaper to cover the roof of a house with shingles, but you should take care of creating a quality foundation.

As you understand, bituminous tiles are made mainly from a bituminous component. But in its composition there are many impurities that protect the material from external influences. I would like to note the mineral dressing, which does not allow the sun's rays to act on the bituminous parts of the material.

Varieties soft tiles quite a lot, but differing not in the composition of the product, but only in its appearance. For example, some manufacturers produce material of 1 meter, while others have a maximum length of only 0.8 meters. Due to the pigments used, manufacturers achieve beautiful patterns on the surface of the shingle, which significantly increases the aesthetic properties of this product.

Advantages of shingles:

• The shingle has small dimensions and low weight, so the installation process can be carried out by one person.
• The rough surface repels extraneous noise, therefore, if you have conceived a residential attic, then there is no need for additional sound insulation.
• Due to the low density of the material, heat does not quickly escape through the roof.
• Bituminous products are not subject to rotting and corrosion, so they will serve their stated period without any problems.
• The duration of operation is about 30-50 years. Everything will depend on the quality of the material itself and its manufacturer.
• Large assortment of colors.

Both sides of the coin need to be examined to see the full picture, so let's look at the disadvantages of soft shingles.

• Contains bitumen. From the previous paragraphs, you already know how bitumen behaves in frost and heat, so you will have to carefully choose the moment for installing such a roof.
• Roof systems with a slope of 12-18 degrees should be equipped with an additional waterproofing sheet, especially in serious nodes such as valleys or cornice overhangs.

• Move across the rooftop summer time year is unlikely to succeed, since you will simply damage the canvas.
• Due to the rough surface, a fairly large amount of precipitation will accumulate on the roof and you will have to take up a shovel to eliminate them.
• Flammability. This has already been mentioned, so there is no need to repeat it.

As you can see, there is something to think about here. Many developers cover the roof of the house with different materials, but is it effective?

Other coatings

Remained roofs such as seam roofing and tiles. I won't talk too much about them since they are extremely rare.

Seam roofing is a roof made of ordinary straight steel sheets. It is brought to the facility in rolls, and only then it is rolled out and adjusted to size. In addition to steel, any other metal can be used, which will not greatly burden the roofing system with its weight. The whole essence of this coating lies in its installation, or rather the creation of folds. Folds are called joints between strips of metal.

In appearance, such a roof is not very attractive, although the first years it looks solid. The use of cheap metal destroys the entire canvas and over time it becomes corroded. And looking at rusty metal, and even on your roof, is an unpleasant thing, isn't it?

Now let's move on to shingles. If you decide to make such a purchase, but still want to save money, then it is better to cover the roof not with clay, but with cement. In appearance, there will be no differences, except perhaps in color. It is worth noting that for the installation of these roofs, you will have to assemble a serious truss system, otherwise everything will simply collapse.

If we draw a conclusion from all of the above, then it’s impossible to say for sure what is better to roof a roof in a private house. For some residents, asbestos slate will be quite enough, while for others, natural tiles are not enough. However, if you do not strive for frills, then you can consider slate, corrugated board or ondulin. Otherwise, get shingles or metal roofing.

Flat roof coatings

So, I told you about coatings for pitched roofs, and now we turn to flat ones.

Many developers erecting a building with a flat roof immediately run to consult with roofers or turn to a design bureau. Almost all people ask the same question: “what is the best material to cover the roof of a house?” Here is exactly the same case as with pitched ones, since there are fewer materials.

Bituminous roll materials

Roofing material can be called a bright representative of rolled materials. To date, he has suffered major changes in the composition, this has led to an increase in his service life. Previously, the duration of operation was about 5-7 years, and a modern product can lie on the roof for more than 15.

bituminous roll materials are installed using the fusing method. For this, it is used gas cylinder and a special burner. This work is not safe, so if you plan to do it yourself and for the first time, then it is better to invite an experienced partner.

The structure of the material is thin, so you have to lay it in several layers, ideally if their number is 3-4. All layers are laid perpendicular to each other in order to reduce the likelihood of moisture leaking into the seams. The top layer of the roof should be laid with a special roofing material with mineral dressing. It will protect the canvas from the harmful effects of UV rays and mechanical stress.

Liquid, mastic and spray materials

If the roofing surface is not exploited, then bulk, mastic or sprayed products can be used as a coating.

These coatings give the surface 100% waterproofing and adhere well to the surface. When arranging such materials, it is very important to make a high-quality slope, otherwise puddles will form on the roof, creating an additional load on the underlying elements.

Mastic materials are applied using a roller or other hand tools. When laying such a roof, a reinforcing mesh can be laid so that the substance is distributed over the surface more evenly. The result is an effective, but far from attractive roofing surface, and even with a serious drawback: you cannot move along it. However, it is quite suitable for temporary structures.

Sprayable materials include coatings such as liquid rubber. Implement self-laying you are unlikely to succeed in applying this substance to the roof surface, since here you will need expensive equipment and the ability to distribute the amount of rubber over the plane.

membranes

Membranes are still considered modern products, although they were invented a long time ago. These products are made on the basis of polymers, which perfectly resist moisture and do not let it through their thickness. It is worth noting that it is not effective to use such a coating on small areas, so the membrane has found great popularity in industrial construction.

Membrane roofing is divided into three types:

• TPO. The basis includes thermoplastic olefins with impurities of antioxidants, plasticizers and synthetic rubber. The output is strong and durable material with increased fire resistance.

• EPDM. Expensive coating with a reinforced body. This material justifies its cost due to long-term operation.
• PVC. IN modern world Almost everything is made from polyvinyl chloride. This connection makes roofing material cheaper than similar analogues, which greatly attracts developers.

If you're trying to figure out what's the best cover flat roof at home, and to make it cheaper than others, then pay attention to roofing material or mastic. Well, if aesthetics are important to you, then naturally choose polymers.

Safety precautions when dismantling slate from the roof

The disassembly of the roof should be carried out, observing certain safety measures:

Dismantling the old slate from the roof

The easiest way is to remove the old slate coating with your own hands, if the material is no longer suitable for further use. Traditionally, such a roof was mounted using ordinary or ruffed nails, so for the work you only need a nail puller, a hammer, a knife for cutting waterproofing, a ladder and a long ladder.

First of all, you need to get to the roof ridge and, using a nail puller, remove the fasteners on which the ridge element is held from wooden boards or bars, roofing felt or sheet metal. This will release upper part top row of slate. Then the sheets of roofing material are removed, starting with the one that was last when laying - it is easy to determine by overlapping on an adjacent element.

Since the integrity of the old slate is not required to be preserved, in order to release the sheet, it is enough to hit the nail heads hard with a hammer, sinking them into the wood. Holes are formed at the attachment points and the sheet, in whole or in parts, can be thrown down. Further, the fasteners remaining in the crate are pulled out with the help of a nail puller.

Dismantling the slate without damaging the sheets

If old sheet material suitable for reuse, disassemble the roof should be extremely careful. In this case, work also begins with the removal of the ridge element. Then the sheets of slate are removed in the opposite order of laying the roofing. The principle is simple: carefully, without damaging the sheet, fasteners are removed, and the removed roofing element is carefully lowered to the ground.

Without any problems, you can remove the fasteners if the roof is mounted on self-tapping screws. They are unscrewed with a wrench (if the fastener has a hex head) or a screwdriver with a suitable nozzle (for a straight or cross slot). But this option is only possible when disassembling a fairly new roof.

Smooth nails are pulled out with a nail puller, under the heel of which it is necessary to place a plank - this will prevent the sheet from splitting under a point load. If the nail passes through the crate and its tip is bent, then it can be removed in two ways:

• remove layers of vapor barrier, insulation and waterproofing from the inside of the truss system, straighten the free part of the nail and knock it out from the bottom up, then pull it out with a nail puller from the outside;
• bite off the nail head with a suitable tool (lever pincers, mini-bolt cutter, etc.) or cut it off with a grinder.

Ruffed roofing nails (there are special corner notches on their body) are inherently non-removable fasteners - with the help of a nail puller they cannot be pulled out without breaking the nail itself or without damaging the slate material and the crate. Therefore, their hats are bitten off or cut off.

How not to damage the slate when removing to the ground

It is most convenient and fastest to carry out dismantling with three people:

• one person stands on the stairs or on the crate of that part of the roof where the coating has already been removed, and dismantles the fasteners;
• the second person sits on a skate or is nearby, holding the sheet, helping to tie it with a rope and remove it, gently lower it to the ground;
• the third assistant is on the ground, he unties the rope from the removed sheet and takes it aside, carefully stores it.

When working alone, it is more convenient to start dismantling the roofing with your own hands from the extreme element of the bottom row. Having removed the fasteners from it, the sheet must be moved and pulled, releasing. Remember to immediately cut off the waterproofing material so that you can easily move along the crate, using it as a ladder.

It is not advisable to use a rope to lower sheets - it is difficult to handle a slate sheet alone, the weight of which exceeds 20 kg. In addition, you will have to constantly go down the stairs to untie the rope.

In this case, it is necessary to take two or three long boards and set them at an angle of about 40-60 degrees, resting one end on the ground and placing the other on the ledge. On these parallel guides, it is easy to lower the sheets to the ground, “accumulating” three elements one after the other - the slate sheets will rest against each other's end. As a result, you will have to go down to the ground less often, which will save strength and reduce work time.

To prevent the slate from splitting, it is necessary to provide the sheets with a “soft landing” - lay bags, rags or other soft material at the base of the descent!

During the construction of the roof as a roof are used different materials: this is slate, and tiles, and many others. But the roof covering with iron remains the most demanded. You can make your own if you have the material. roofing.

Preparatory stage

Covering the roof with iron with your own hands begins with the preparation of sheet steel. When transporting, you need to be extremely careful so that there are no scratches and chips.

1. FROM sheet metal remove the grease layer.
2. Drying oil is applied on top, which is enriched with dyes.
3. After the drying oil dries, you need to identify unpainted areas and paint over.
4. Along the edge of the steel sheet, you need to bend a fold - a technological fastening element, which is also called a lock.

The fold is of two types: standing and recumbent. Sheets can be connected both longitudinally and transversely. And only in a metal tile the sheets are overlapped.

Making a fold

To make a fold yourself, you will need tools:

• calipers;
• comb bender;
• mallet made of wood;
• metal scissors;
• workbench with a steel corner, a metal hammer with a flat side;
• ruler.

With this set of tools, you can make a lying fold.

1. Put a sheet of iron on the edge of the workbench.
2. Mark the edge line, holding the sheet so that the line runs smoothly and does not move.
3. Using a mallet, bend the corners of the edge exactly along the line, you should get a beacon bend. It will allow further work to be done more accurately.
4. After the bend is made along the entire length of the edge, you need to turn the iron sheet over and bend the edge to the end.
5. Process another sheet in the same way, then it will be possible to connect them together.
6. The connection points must be fixed with a hammer.
7. The longitudinal edge gives the necessary scar.

The standing seam is made using the same technology on the roof. To make a lock for ordinary sheets, you need to use a comb bender.

Roof coating technology

You can also prepare iron sheets for roofing work in the workshop, but you need to mount them on the roof itself. Before you start working at height, you need to make prefabricated elements from steel sheets directly on the site. This will make it easier to install later.

To properly cover the roof with iron, you need to follow the instructions:

1. With the help of ready-made recumbent folds, sheets of iron are interconnected on one side. The prefabricated element must consist of at least two sheets on the short side, and as a maximum - for the entire height of the roof slope.
2. Fasten the fold between the sheets, observing one direction.
3. Check if the sheets are correctly positioned relative to the vertical.
4. Strengthen the connections with a steel strip and a hammer.
5. The bend through the ridge must be done so that the edge on one slope is bent by 6 cm, and on the second by 3 cm.
6. You need to fix the iron by first fastening the bend at the ridge, and then fixing the entire strip.
7. The sheets are fixed with clamps, which are attached to the roof lathing, to the beams.
8. If the sheets are profiled, then they must be fixed to the roof with special nails with rubber seals.

A roof made of materials with a polymer coating will not need to be covered with anything on top for all the years of operation. But ordinary steel will need to be primed and painted. This must be done immediately after the completion of the roofing work. Steel sheets need to be painted twice. How the iron roofing looks like can be seen in the photo.

In recent years, for roofing, along with expensive materials, profiled flooring, or corrugated board, is increasingly being used, which is not only attractive and reliable, but also allows you to cover the roof yourself, without having special knowledge and skills for this. Decking is produced with a polymer coating of various colors, its cost is much lower than other analogues, which, however, does not affect the quality.

In our article we will tell you how you can cover with corrugated board, taking into account all the features of this process.

Transportation of corrugated board

This roofing material, despite its strength and durability, needs proper and careful transportation. If the profiled sheet is loaded incorrectly, it will deform during transportation, and this will lead to the fact that the cost of the work will increase.

It is possible to qualitatively block the roof with the help of corrugated board, taking a material with a thickness of half a millimeter. This will preserve all the necessary performance characteristics, the roofing will reliably protect the house from precipitation, strong wind, heat loss.

In order to organize the correct transportation of corrugated board, use simple tips:

• the material should be loaded only on a solid and solid base; ordinary wooden logs are excellent for this, which will be longer than the sheets themselves;
• the cargo during transportation must be strengthened with slings so that there is no friction of the sheets during transportation;
• the recommended speed of transport should be up to eighty kilometers per hour.

Subject to the above conditions, the corrugated board will be delivered undamaged. Care must also be taken when unloading. It is desirable that the sheet be carried by two people; it is strictly forbidden to drag it or bend it.

When covering, it is important to properly lift it up. It also has its own technology, which is as follows:

• the material must not be lifted in windy weather to avoid damage;
• logs stretch from the roof to the ground, along which the sheets rise up. It is desirable that this work be performed by three people;
• lifting should be carried out exclusively on one sheet.

Materials and tools for laying corrugated board

Covering is quite simple, for this there is no need to purchase expensive tools, a lot of additional materials. We will only need metal scissors that can cut a sheet up to 0.6 mm thick, we will also need a hacksaw with fine teeth, a jigsaw, you can also use electric scissors.

But abrasive wheels and grinders are strictly prohibited, they can cause severe damage to the metal.

Features of laying corrugated roofing

The technology of corrugated board coating has some features, which we will now list:

1. The roof rafters are covered with a waterproofing membrane and heat insulators to prevent heat loss. This is especially true for residential attics, in which such losses can be significant.
2. On the inside of the house, it is necessary to hem a layer of vapor barrier and tightly seal all its joints. In general, during such work, it is necessary to ensure that there are no gaps, gaps, defects. If found, they should be carefully eliminated.
3. When covering with corrugated board, it is very important to create a "cold triangle", that is, to ensure the movement of cold and warm air flows.
4. When constructing a roof, it is important to remember the need to create through slots for air to escape, which are made in the eaves.

It is laid only on a layer of waterproofing. It is made from wooden beam with sizes fifty to fifty or from a board 32x100, the whole tree must be treated with antiseptics.

Important! A counter-lattice of timber is nailed to the rafters, on top of which the boards are laid. Where important nodes pass, that is, valleys, chimneys, fences, a continuous crate should be made in increments of fifty centimeters.

Choose the angle of inclination

To cover the roof with corrugated board, it is necessary to accurately determine the angle of inclination in advance, it depends on what the overlap and fastening of the material will be:

1. An overlap of two hundred millimeters is recommended at an angle of up to fourteen degrees.
2. If the angle is up to thirty degrees, then horizontal and vertical overlaps are recommended to be processed with a waterproof silicone sealant. At angles of more than thirty degrees, the overlap is preferably within one hundred and seventy degrees.

Scheme for selecting the angle of inclination for rafters.

The type of crate also depends on the angle and height of the corrugation:

• at angles up to fifteen degrees, you can use C21 corrugated board, the overlap will go in two waves, and the crate will be solid;
• with the same angle and C35 corrugated board, the crate pitch is three hundred millimeters, the overlap goes into one corrugation;
• sometimes, with corrugated board C44 and more, the step of the crate reaches five hundred millimeters. In general, in this case, the step can be up to 650 millimeters.

Roof covering

The process is quite easy, now we will talk about the main stages of this work.

First, you should purchase soft shoes so as not to damage the sheets of corrugated board. It is necessary to try to step only on the deflections of the wave at the points of attachment to the crate. You will also need protective gloves for your hands, which will protect them from cuts during work.

After the preparatory work for the installation of the crate and the heat and waterproofing of the roof, we begin. For this we use special self-tapping screws with rubber seals that will not damage the material.

The chips formed when tightening the screws should be removed immediately - this way it will begin to rust quickly, and this will lead to damage to the flooring. Self-tapping screws are screwed only into the wave.

The norm for fastening corrugated board is the use of six to eight fasteners per square meter of material. Follow the rules for installing a profile sheet for roofs:

• when laying adjacent sheets, it is necessary to ensure the displacement of fasteners for joined elements (waves) by five millimeters;
• fastening is carried out from the side of the wind slats in each individual crate;
• the fastening step should not be more than five hundred millimeters, so that the roof is strong and reliable;
• sheets must be attached to the upper and lower boards of the crate in each trapezoid (wave).

Nails cannot be used during installation, just like aluminum rivets, they cannot ensure the stability of the roof under strong wind loads. It is not recommended to use gas or electric welding when working with corrugated board.

When covering the roof with corrugated board, you need to know some of the subtleties of the work. Laying should be carried out parallel to the cornice, while the overhang is approximately forty millimeters. In the event that the sheet is shorter than the slope, it can be laid along the length of the roof in rows.

Before laying the roof sheathing is carefully treated with special means(to protect the tree from mold, insects), after that it is necessary to perform work on hydro-thermal insulation.

The sheets are only overlapped here, all remaining gaps are filled with bituminous sealants. When fastening to the crate, it is necessary to use self-tapping screws with rubber seals, while the pitch of the crate depends on the angle of the roof slope in the region of twenty to forty millimeters. As the angle increases, the distance between the individual rails should also increase.

An important condition is the presence of a ventilated space between the stacked profiled sheet and the waterproofing layer of the roof. In addition, experts recommend that after cutting the sheet, treat the sections with a primer.

That's all the secrets of installing corrugated board. Such work can be done in a couple of days by two people who do not have special knowledge. Why not try it for you too!

You have decided to replace your heavy slate roof with a lighter one. modern material? Don't rush to hire expensive professional roofers. In this article, RMNT will tell you how to do all the roofing work on your own.

Until recently, asbestos-cement slate sheets, invented back in 1901, were considered the main roofing material. Such an “eternal” roof met all the necessary qualities that were relevant at that time, but it also had one significant drawback - an impressive weight. Today, with the advent of new roofing materials on the market, slate is rapidly losing ground. The population en masse covers the roofs with ondulin, corrugated board or. At the same time, hired construction teams, in order to increase the estimated cost of work, as well as make life easier for themselves, often convince the customer to produce complete dismantling and make a roof from scratch. Others believe that it is enough to simply remove the old roofing material and you can safely lay a more modern one. The truth, as always, lies somewhere in the middle. Let's try to explain how to actually do it.

Dismantling works

In order to build something new, we must first remove all the old that interferes with us. That is, to carry out dismantling work. And, of course, you need to start dismantling with ... a weather forecast. Before you start roofing work, you should find out if weather forecasters promise us long and prolonged rains. After all, we are already covering living quarters, with all the internal work, so the ingress of precipitation inside is categorically undesirable.

Important! Even if the weatherman gave the go-ahead, still stock up on film, tarpaulin or other waterproofing.

For dismantling, we need a nail puller, a block of wood, ropes and a pair of hooks as thick as a slate nail, as well as two guide beams that will serve to safely raise and lower roofing materials.

Dismantling should begin in the reverse order to installation, that is, first we remove the skate, then the top row of slate, and so on until the bare crate. We pull out the nails with the help of a nail puller, placing a wooden block in the last stop. Asbestos-cement sheets should be lowered along wooden guides, hooking them previously to the holes made with nails with hooks. Lowering the slate just by a rope is not safe.

Do not try to dismantle the slate from the entire roof at once, if the team is small and you do not have time to cover the roof in one day, replace it in stages, first repairing one slope, then the next.

Following the slate, we also dismantle the old crate, leaving only the bare rafter system on the plane.

Rafter system repair

Since the requirements for the plane of slate and corrugated board are different (for the installation of corrugated board, a perfectly flat surface is required), we will build this plane.

First you need to pay attention to the condition of the extreme rafters and the presence of a plane as a whole. To do this, in all four corners of the slope we are repairing on the rafters, we twist the screws so that all 4 hats are not screwed 3 cm to the beam. From corner to corner diagonally, as well as along the rafters, we stretch the lacing. Checking in this way whether the plane is flat and whether there is a bump on wooden structure. The threads stretched diagonally should barely touch each other at the intersection. If the plane is missing, we build it by unscrewing (but not twisting) the necessary screws.

Now, using the extreme rafters as beacons, we pull the laces between them in increments of 1.5-2 m and audit the rest of the truss system. If necessary, we level the rafters edged board, and in case of severe damage to the tree, we make a complete replacement of them. In any case, 2 people who simply have the skills to handle construction tools will cope with such work without much labor, while the manufacture of a new truss system requires the forces of an entire construction team with the participation of truly roofing professionals.

Lathing manufacturing

The next step is the laying of the waterproofing membrane. It is laid horizontally on top of the rafters, starting from the bottom and rising to the ridge. Waterproofing must overlap so that water flows over it. We nail the film to the rafters with a stapler.

Important! It is impossible to lay the waterproofing “stretched”, it should sag slightly, thereby increasing the size of the ventilated space.

In parallel with the hydrobarrier, we mount the crate. If this is not done, then there will be problems with how to get to the plane of the truss system without damaging the waterproofing membrane.

The installation of the lathing begins with the installation of a support beam (50x40 mm), which is attached over the waterproofing film along the entire length of the rafters. For installation, we use a self-tapping screw 4.2x75. The installation step is 35-40 cm. It is not necessary to use a beam long for the entire rafter, blanks of 1-1.5 m are quite suitable.

For the transverse crate, an edged “shalyovka” is suitable - a board measuring 25x150 mm. We start installation from the eaves itself and ending with the ridge. The first and last boards should go along the very edges of the rafters, the rest should be located in increments of 450 mm, that is, a 30 cm template must be installed between the boards (the crate is designed for C21 grade corrugated board, for other types of iron the crate step will be different).

When the crate is finished, we move on to the second slope. We also carry out all the above operations. The difference lies only in the installation of the last ridge board. It should cover the corresponding board of the opposite slope; for this, the latter is trimmed with an electric planer. Both boards are protected with one piece of waterproofing membrane, securing it with a stapler.

Lastly, we mount the wind board. It is attached to the end of the crate and should protrude above it to the height of the corrugated board wave, it can be a couple of millimeters lower.

Installation of corrugated board

When the work with the tree is completed, you can proceed directly to the installation of corrugated board. It would be nice to get it in a size equal to the length of the slope. This is the distance from the ridge to the end of the rafter, plus another 5-8 cm.

The sheets are carefully removed from the pack and fed to the roof along inclined guide bars; for convenience, a couple of holes for hooks can be made in the outer wave in that part of the sheet that will be covered by the ridge.

Important! Sheets of corrugated board from the pack must be removed, and not pulled off. polymer coating very easy to scratch.

The first sheet is exposed very carefully. It will depend on him how the rest of the iron will lie. To do this, we fasten flags to the extreme rafters, small slats 20-30 cm in length, which are installed in the same plane with truss system and 10-15 cm protrude beyond its limits. At a distance of 5-8 centimeters from the eaves, a self-tapping screw is twisted into such a rail strictly perpendicularly so that its head is higher than the height of the corrugated board wave. Further, between the two extreme flags along the height of the wave of the metal sheet, we stretch the lacing. If it sags, the flags can be duplicated. Leveling on a thread, it is much easier to expose iron.

Important! Any trimming of corrugated board should be carried out from the side of the ridge, from the side of the cornice there should be only a factory cut.

The corrugated board is mounted to the crate using screws with press washers at the rate of 6-8 pieces / m 3. It is useful to calculate and outline the attachment points on the ground.

Important! We twist the screws without fanaticism, the press washer should press the iron to the crate, but at the same time not deform much.

We mount wind corners and a skate. It is much easier to do this work right away than to climb slippery iron later, with the risk of crushing or scratching it. To fix the ridge, long drills with a press washer are used, which can pierce the thickness of the corrugated board and gain a foothold in the tree. Installation is carried out through an external wave.

Important! All high-altitude work is carried out only with the use of insurance and with the good health of the master. Violation of these simple rules can lead to tragic consequences.

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