Properly cover the roof with a metal profile. How to cover the roof with a metal profile and how this material is better than competitors. Video: important nuances when laying corrugated board as a roof

Profiled metal sheet, or metal profile, is one of the most popular and sought-after materials in the construction market. They line walls, arrange roofs and even build small buildings. And it's all about the merits of this material and the ease of its installation. Let's say even more: the appearance of profiled sheets on the market has significantly expanded the construction prospects.

Now you can easily make roofs of curved and bizarre shapes, while maintaining their complete tightness. Do you want to understand everything in more detail? So, a new bright roof made of metal profile - at a minimum cost!

As a roofing material, a metal profile is wonderful. Fairly light, strong, airtight and durable. Its rich color range and the ability to achieve almost any shape make it possible to turn any designer's idea into reality.

But for all its rigidity and low weight, combined with an affordable price for many, the metal profile has a serious drawback - windage. This is an additional effort that helps the wind to tear the coating from the roof frame. Why doesn't the same thing happen with ordinary tiles? Because it consists of many individual parts, but metal profile sheets are usually large in area and at the same time light. Like a parachute.

That is why, if you cover the roof of a house with a metal profile in an area of high wind load, use high-quality fasteners and think well in advance what angle of inclination will be optimal.

The second negative is the sound of rain. Although, in fairness, it is worth noting that most owners of such a roof recognize the loud sound of drops as a minus insignificant. Yes, and modern means of soundproofing are able to completely solve this problem.

But not every corrugated board is suitable for roofing, but only certain brands, which are listed in this table:

Find a good supplier, purchase quality material and study our instructions in detail.

How to bend sheets for mounting an arched roof?

Let's start with what kind of roof will you do? Simple geometry, arched or complex in design? After all, with such material, everything is possible!

The arched metal profile is a demanded flexible raw material, which is mainly used for the construction of roofs of rounded or irregularly shaped buildings. The main advantage of building such a roof is that solid sheets are mounted, without any breaks and skates. Moreover, even with a small thickness, a bent arched metal profile is able to withstand point loads of up to 20 kg.

It will not work to make such a roof using a conventional wall profiled sheet. The thinner and cheaper the profile, the less durable it is, not to mention the low resistance to atmospheric factors. But from the carrier - easier than ever. But there is a secret in this matter: the higher the corrugation of the sheets, the more difficult it will be to bend them. Therefore, purchase almost flat sheets for this purpose.

And now - about the technology of bending the metal profile. Do not try to bend the acquired metal profile with an ordinary hammer, as "experienced" builders sometimes advise. You will only damage the coating and make it uneven. What happens in the end will be no better than a dented tin can - neither in appearance nor in practicality.

You can entrust this business to local workshops, where a fairly large automatic line is installed to give the profiled sheets the desired angle.

So, if you need to slightly bend the profiled sheet for the roof device, follow these steps:

Step 1 Arm yourself with a regular metal corner and a straight board.
Step 2. Mark with a permanent marker on the sheet where exactly the center of the bend will be.
Step 3. Place the corner on a flat surface, and on top of it - a metal profile.
Step 4. Lay the board along the drawn line, press it with your feet and press on the edge so that the material begins to give in.
Step 5. In those places where the material will swell, tap with a hammer through the bar.
Step 6. And now repeat the same with each individual section.
Step 7. To make the resulting angle even, after bending, gently roll it with a piece of pipe wrapped with electrical tape - so as not to damage the coating once again.

Here is the second way, more complicated:

Step 1. Mark the line of the future bend on the sheet.
Step 2. Lay the sheet in a straight line on the 40th corner.
Step 3. With a steel roller with a 45° bevel, roll along the line with pressure. For each pass (and you need to do everything 5-6 times), the sheet will bend by 10-20 °.

The evenness of the rib at the exit will be much better, only the coating will be slightly damaged - just tint it.

The finished bent profile is easily attached to wooden and tubular frames using a manual screwdriver:

How to cut sheets to the desired size?

The metal profile can and should be cut out for complex sections of the roof. But how? That's where a lot of different subtleties and nuances. And it's all about the complex structure of the metal profile, which, unlike an ordinary sheet of metal, is a whole “layer cake”: a metal base, protective and decorative layers. That's just the destruction of the latter leads to corrosion and a significant reduction in the service life of the coating. That is why you need to cut the metal profile correctly, and how exactly - we will now tell you in detail.

Here are the traditional tools that are most often used for this purpose:

What is most afraid of such roofing material? heating! And when cutting with abrasive wheels in a high-speed tool, this is exactly what happens, and all the layers at the cut point burn. The width of the damaged area reaches 3-5 mm, which is quite noticeable, which is why the so-called "edge corrosion" occurs.

Why can't you cut with a grinder?

Most often, such material is cut with ordinary metal scissors, and the use of a grinder is not recommended, which also cuts unevenly. The second danger is sparks flying out from under the abrasive tool. Their high temperature (like that of fire) damages the polymer coating even tens of centimeters from the place of cuts.

Therefore, if you already have to cut the metal profile with a grinder, then replace the abrasive wheel with a cutting wheel, although this is not the best option. There will still be damage, just less.

But do not use a grinder with a diamond disc, which allegedly heats the metal profile less: this material will produce large burrs. All the advantages of working with this tool are only in its durability.

Working with hand scissors

And for fitting profiled sheets of small thickness, ordinary manual sheet metal shears or special electric ones for working with metal profiles are more suitable for you. The modern market produces them as many as three types:

Cutting.
Knife.
Slotted, with a special head for an accurate cut without deformation.

The so-called nibbling scissors are also convenient for cutting metal profiles. Their trick is that they cut the metal profile along two parallel straight lines at once, and the sheet no longer bends. In addition, thanks to the rotation of the holder, it is possible to cut the profile at right angles without any burrs. But such a tool, of course, is not cheap.

Therefore, if you are working on your own object and it makes no sense for you to spend money on expensive roofing equipment, use the most common nozzle on a cordless drill, which is good for fitting metal profiles in hard-to-reach places.

Using an electric saw

Many experienced builders also prefer to use an electric saw, in order to maximize the quality of the roofing material. In addition, this tool has more advantages:

Twice the speed of cutting sheets due to the ease of working with the tool.
Almost twice the speed of the saw. Due to this, the metal does not melt, but is cut out with small sawdust.

It is only important to carefully use an electric saw, because. small metal chips can scratch the skin. That is why, if you are new to this business, and you only need to cut a couple of sheets, get a regular classic cutting tool. This is a manual hacksaw, easy to use and absolutely safe for humans.

Jigsaw for curved cuts

But if you need to make curved cutouts of the desired shape, you will need a jigsaw. Typically, such work is necessary when installing the coating in places where chimneys and ventilation pipes pass. In principle, there is nothing complicated, you just need to carefully and in advance make an accurate marking of the cutout on the sheet. The disadvantage of using a jigsaw is that it makes sense to use it only on those sheets whose profile height does not exceed 20 mm - otherwise the metal will simply tear.

Handling accidental damage

After cutting the sheets, immediately collect the resulting sawdust and take it to the disposal. If left, these crumbs in the rain will begin to rust, infecting a quality roof with corrosion. A year or two, and the appearance of the roof of your house will be hopelessly damaged.

If scratches on the sheet could not be avoided, you will have to deal with them. The ideal option is to simply tint in the same color. And therefore, even before the start of roofing work, get a cylinder with paint of the same shade.

The market also offers a new high-precision roofing tool MP. It is made of high-quality steel, does not need frequent sharpening, is convenient, and accurately and quickly cuts the desired shape from the metal profile.

And finally. The profiled sheet weighs a lot, and therefore do its adjustment right at the construction site. And remember the standards: the minimum length of the sheet should be 45 cm, and the maximum - 7 meters.

Installation of a metal profile roof: step by step

Well, here is the material purchased, cut, bent and ready for installation. Now a careful drawing of your roof, and mark out sketches of future sheets on it. Such a layout is simply necessary in order to use the available material as efficiently as possible.

Stage I. Preparation of sheets for installation

So, start the installation from the ground. Arrange the sheets in separate piles - for each slope. Work in protective gloves, and when moving the sheets themselves, hold the edge of the stamping line. If there is wind on such days, watch the sheets - they can easily be torn off even from the ground.

Stage II. Sheathing and waterproofing

Next, install the crate under the metal profile. The vertical step of the boards should be from 0.5 meters to 1 meter, and the horizontal step should be half as much, from 25 cm to 50 cm. And there are some subtleties here: the more boards go to the crate, the higher the noise-insulating qualities of the roof will be. Wood is capable of absorbing sounds.

And if later a valley is installed, then before installing the metal profile, lay the strips with an internal angle.

Stage III. Purchase of self-tapping screws for metal profiles

Now let's deal with the mount. Self-tapping screws with a press washer are traditionally used for fastening a metal profile for facade cladding or for interior work, but only those that have special artificial rubber seals are suitable for roofing installation. This modification allows the maximum sealing of the places where the sheets are attached to the crate, and rainwater no longer gets under the roof.

The screws for the metal profile themselves are rods with a head and a sharp thread. They are made with a special EPDM gasket, which additionally seals the holes and prevents corrosion.

Also, special roofing screws for metal profiles are distinguished by the presence of a special tip-drill, thanks to which it is enough to arm yourself with a screwdriver to work. Minimum fastening operations, minimum labor costs - and at the same time high work efficiency:

All these self-tapping screws are produced with a ready-made colorful coating to make them invisible against the background of the entire roof. And do not take the cheapest self-tapping screws. The fact is that the requirements for these fasteners are serious!

Stocked up with the right amount of self-tapping screws? Then let's move on.

Stage IV. Installation of roofing sheets

Before starting the installation of the metal profile, first install the cornice strip, and fix it with self-tapping screws in increments of 30 cm.

Prepare everything you need for work, and lift the sheets onto the roof with the help of board guides. Next, start the installation of a metal profile roof from the bottom left, gradually filling the rows and moving towards the ridge. Place each next sheet under the last wave of the previous one. Fix the sheets with screws near the very joints:

Fix the metal profile with roofing screws with a protective coating of the same color. Standard dimensions are 4.8x28 mm. Screw them in perpendicular to the laid battens until the EPDM gasket is slightly compressed. How to under-twist, and it is impossible to compress more strongly. The lowest row of the metal profile should protrude 4 cm beyond the roof eaves, and each top row should cover the bottom one by 20 cm.

Screw the screws themselves only into concave waves in order to fix the roofing material well:

Stage V. Installation of the ridge and additional elements

After the profile sheets are laid, install the upper valley bar at the internal joints - this way you will close the bumps. And install the end strips on top of the wave of sheets and fix with self-tapping screws in increments of 30 cm.

When proceeding with the installation of the roof ridge, first lay a protective gasket under it and secure it with nails. You need to fasten the ridge strips through the wave of the sheet, and make an overlap of 10-20 cm. Fasten ridge plugs at the ends of the ridge so that moisture does not get under the ridge.

Now we are working with the chimney. For him, they traditionally make slats adjoining the roofing material, or purchase ready-made ones, which usually come in a standard size (like the chimney itself).

Remove steel shavings and all remaining debris from such a roof with a soft-bristled brush so as not to damage the coating with small scratches.

A couple of months after the installation is completed, check the strength of the fastening screws. Found shattered? Pull them again, and the metal profile roof can be considered completely finished.

Such material as corrugated board has long been known to everyone and is used in construction in a variety of "roles" - they install fences from it, build garages and sheds, and also cover the roofs of outbuildings, small houses and even large mansions. Decking is produced in a variety of colors, so you can see houses covered not only with sheets of the same color, but also with a combination of shades. which looks very original.

To know how to properly cover the roof with corrugated board, you need to carefully study the instructions, and then purchase high-quality roofing and consumables, prepare all the necessary tools.

It is very important that you do not need to have special professional skills to cover the roof with this material. The main thing is to follow the technological sequence of work and not make mistakes that can lead to roof leakage, which will require bringing the coating to perfection.

Advantages and disadvantages of corrugated board as a roofing material

Like any roofing material, corrugated board has its pros and cons that you need to know before purchasing it.

To positive qualities This material includes the following:

The light weight of corrugated board allows you to easily lift it to a height and, if necessary, level it at the installation site.
Optimum ratio of cost and service life of the material. With high-quality installation, the manufacturer sets a minimum operating period of 12 ÷ 15 years.
Ease of installation - the material is easily overlapped and screwed with special self-tapping screws.
Aesthetics of the coating - corrugated board, due to the variety of colors, makes the appearance of the house neat, gives it individuality.
In the relief of most sheet models, special capillary grooves are provided, which are designed to effectively drain water when laying overlapping sheets of material.

negative qualities corrugated board can be called:

High thermal conductivity of metal. Therefore, corrugated board will not protect the attic from overheating or low temperatures. If this coating is chosen, a good attic floor will be required, which implies additional costs for thermal insulation material and its installation.
In windy weather, when the wind speed is 15 m / s and higher, any metal coating emits ultrasonic vibrations that adversely affect the human psyche. Therefore, in regions with constant windy weather, it is better to give preference to roofing that does not vibrate in the wind.
Low soundproofing. If the roof is not provided with heat and sound insulating material, the sounds of drops or hailstones falling on the floor will be clearly audible in the house.

Choice corrugated board for roofing

Decking can be made from galvanized metal sheets that do not have a color coating. Such sheets are most often used to create temporary or permanent sheds, or to cover outbuildings. It is also often used for building site fencing. Unpainted corrugated board has a fairly low cost, but is not very suitable for covering residential buildings, as it has low performance characteristics and is not very attractive in terms of aesthetics.

It is very popular, which has a decorative protective coating of polymer compositions. This material is more durable and able to withstand quite severe loads. Certainly this — with proper installation, which largely depends on the angle of the slope of the roof slopes.

Several types of corrugated board are produced with a protective and decorative polymer coating:

Bearing (H) - designed to cover the roof, floors and canopies.
Wall ( FROM) - used for the construction of a fence, hangars, garages.
Universal (NS) - suitable for roofing, installing fences, building garages, utility facilities, etc.

It is better to use a carrier to cover the roof, but last resort any of the above types can be used.

In addition, this material varies in height and number of waves. The height of the wave (corrugations) is indicated by a number, which is placed next to the marking of the type of corrugated board. For example, several models are presented in table:

Marking	Application	Corrugation height in mm	Metal thickness in mm	Usable width in mm
C10	wall	10	0,5; 0,6; 0,7	1100
C18	wall	18	0,5; 0,6; 0,7; 0,8	1000
C21	wall	21	0,5; 0,6; 0,7; 0,8	1000
	Roofing Wall	35	0,5; 0,6; 0,7; 0,8	1000
C44	wall	44	0,5; 0,6; 0,7; 0,8; 0,9; 1,0	1000
H60	roofing	60	0,7; 0,8; 0,9; 1,0	845

A metal sheet of corrugated board can have a one-sided or two-sided coating, but no matter what it is purchased for, it is better to choose a material that is protected on both sides.

The coating consists of numerous protective layers, the diagram below clearly shows which layers cover the outer and inner side.

External side of the roofing material:

The basis for corrugated board is a steel sheet.
Steel is coated with zinc.
Next comes the anti-corrosion coating.
A primer layer is applied to it, which serves as a preparation for the polymer.
Then comes the colored polymer coating.
A protective film (polyurethane) is often applied to the color polymer coating, which will keep it from fading and peeling.
For transportation and storage of corrugated board, it can be additionally covered with a film coating on top, which is removed after installation.

The inner side of the corrugated board is covered in the same sequence with exactly the same materials, but on some models there is no colored polymer film from the inside, while on others the sheet is covered equally on both sides. The latter, of course, have a higher cost, but their service life is much longer.

The color scale of a professional flooring is rather various. According to the most conservative estimates, the color range is represented by at least 30 shades, so choosing the right one will not be ore. The color layer on the surface can be applied by powder method or using a special polymer coating technology.

To summarize the selection criteria, we can list the following:

To make sure that the material is of high quality and produced in professional conditions, you should ask the seller for a product certificate. If it is missing, then it is better to contact another store.
The marking of the material is checked, indicating its purpose, thickness and wave height.
The appearance of the material is evaluated. It is necessary to pay attention to the evenness of the sheet, the absence of defects in the coloring and protective layer, the same shade of all sheets, the uniformity of the coating. The appearance can tell a lot about the quality of the corrugated board - if during the inspection a peeling of the coloring layer or burrs on the sections are found, then it is better to refuse the purchase.
Another criterion is to check the corrugated board for bending - high-quality material must be elastic, and if you try to bend it, it tends to return to its previous position. In this case, no trace of a fold should appear on the coating.
Type of external decorative coating - polymer or powder. The highest quality corrugated board coatings are matte and plain polyester and plastisol. Coating data must also be stated on the product certificate.
Material price. It must be remembered that you should not choose the cheapest material - it is unlikely to be of high quality. Moreover, all corrugated board has a very affordable price.

When the material is purchased, it is necessary to correctly deliver it to the construction site, as well as carefully, without damage, unload and lift it to a height.

Prices for various types of corrugated board

Decking

How to avoid damage during transport and installation of the material?

It is important to highlight this issue because damage to the corrugated board during its delivery, unloading and installation will significantly reduce the life of the future roof.

This material is made from steel sheet, which is embossed by cold rolling in special equipment.

Such material, laid as a roof, is able to withstand high wind and snow loads, but during its transportation, loading and unloading, the sheet coating can be subjected to unnecessary mechanical stress, which will lead to its damage. To prevent this from happening, you must follow certain rules for transporting, storing, carrying and lifting sheets.

Transportation of a professional flooring is made on trucks. The sheets must be stacked in piles on a rigid base of the body or on a special metal frame, which is fixed in the body at an angle.

After laying the roofing material in the car, it must be securely fastened with slings to avoid the sheets rubbing against each other when the car is moving, since this can lead to damage to the protective coating.
The car transporting the corrugated board must move at a speed of no more than 80 km / h.
It is very important to ensure that the unloading of the roofing is carried out with the utmost care. If unloading will be done manually, it is desirable that each of the sheets be removed from the stack separately, transferred and placed in the place prepared for them. It is best to prepare the flooring from boards and plywood, covered with polyethylene on top.
It is required to ensure that none of the sheets is bent during transportation, since it will not be possible to return it to its original state, which means that during coating, gaps form between the sheets that will violate the evenness and integrity of the roof.
To raise the corrugated board to the roof without harming it, you must also do it correctly:

- for accurate lifting of the material, logs will be required, which are installed at an angle to the roof - these will be a kind of "rails" for the convenience of lifting sheets;

- sheets rise to a height of only one piece;

- the laying of corrugated board on the roof itself can be done by two masters, but it is better to lift the roofing material to a height with three people - this is an additional insurance for the integrity of the material and the safety of work.

Now a few words about how not to damage the corrugated board during installation.

The maximum risk of damage to the material is added if a large area of the roof is covered, since during the installation and fastening process it will be necessary to walk on the already laid roof. Therefore, it is necessary to choose the right shoes for work - it should not only be comfortable, but also have a soft elastic sole that cannot damage the protective layer and will not slip on the roof surface. It is possible to step on the fixed roofing material only between the ribs and only in those places where the guides pass, especially if there is a large step between them.

In order for the installation to take place neatly, without unnecessary damage to the roofing material, you need to use only high-quality tools. For work you will need:

Screwdriver.
Roulette.
Scissors for cutting metal up to 0.6 mm thick.
Marker for marks.
Level.
Electric drill.
Rubber mallet.
Electric jigsaw or electric scissors.
Soft brush for sweeping away metal shavings.

It is forbidden to cut the corrugated board with a grinder. The best tool for this is electric scissors.

Features of the installation of corrugated board as a roof

In order for the installation of roofing material to be successful, it is necessary to take into account some features of the work.

Influence of roof slope on installation

Much in the process of covering with roofing material depends on the slope of the roof. It is very important to correctly position the boards or lathing bars, as well as observe the required amount of overlap of corrugated sheets.

If the slope of the slope is 5 ÷ 10 degrees, then the crate is made solid or the slats are nailed at a distance of no more than 5 ÷ 7 mm from each other.

The overlap of the sheets in this case should be horizontally in two waves, and the top to the bottom row should be at least 300 mm. And with such a small slope of the slope, the gaps between the sheets of corrugated board are most often filled with sealant, since there is still a risk of water leaking between them, especially in windy weather.

With a roof slope of 10 ÷ 15 degrees, the distance between the lathing bars is 400 ÷ 450 mm, and adjacent sheets are overlapped in one wave. The top row should overlap the bottom row by 200 ÷ 220 mm.
With a roof slope of more than 15 degrees, the lathing bars are fixed on the rafters distance of 550 ÷ 600 mm. The overlap of the sheets stacked next to each other is made in one wave, and the top row is superimposed on the bottom row by 170 ÷ 200 mm.

To make it convenient to mark and fasten the battens, it is cut out to the right size, for example, 600 mm, which will help to mount the frame under the roofing much faster.

Order of fixing sheets

It is very important to follow the sequence of laying sheets if the coating will consist of two or more horizontal rows of corrugated board.

Laying of roofing material starts from the eaves. The edge sheet is set strictly according to the building level, since the correct laying of all other elements of the roof will depend on its evenness. In addition, the stacked sheets are aligned along the lower edge of the overhang - if this method of alignment is excluded, then the lower edge of the roof will be uneven.

Upon completion of the installation of the first row, fixing the second begins on the same side of the roof from which the first was mounted. However, some craftsmen also practice a different approach - with sequential laying of the bottom, and then the top sheet, or with the laying of a "ladder" - for example, two sheets from the bottom - one from above, that is, the top row constantly "lags behind" by 1 sheet.

The best option is if the length of the sheet is sufficient for the entire roof slope

If it is possible to purchase sheets equal to the length of the slope, then this option should be preferred - this will reduce installation time, and the roof will be more reliably protected from leakage, since there will simply be no horizontal overlaps of sheets.

Rules for fastening corrugated board

It is carried out using special self-tapping screws equipped with a press washer and a rubber gasket. To make the roof look aesthetically pleasing, self-tapping screws are usually matched to the color of the base material.

If the roof is covered with canvases that are solid along the length of the slope, then the first sheet is temporarily fixed at the top below the roof ridge by 50 mm and at the bottom, on the overhang. The sheet should protrude beyond the edge of the overhang by 40 ÷ 50 mm. The upper distance left open will become a ventilation gap and will later be covered from above with a ridge element.
The second sheet is overlapped with the first one or two waves, depending on the slope, aligned with the overhang of the first sheet and screwed with a self-tapping screw.

Subsequent canvases are laid and aligned also along the overhang and fastened together on the crest of the wave. Their fastening takes place from the eaves to the ridge with a screwing step of 500 mm.

When 3 ÷ 5 sheets of corrugated board are laid, and they are aligned along the edge of the overhang, their capital is fixed to the crate. The canvases are attached to the crate in the lower part of the wave, immediately after the overlap of the sheets, and then, passing one wave, along the bottom of the second.
If two or more horizontal rows are laid, then in the strip of their overlap with each other they are fixed with self-tapping screws along the bottom of each wave.

If polymer-coated corrugated board is installed, then after screwing in the screws, it is recommended to remove the formed metal chips in order to avoid damage to the protective coating of the roofing material. It is completely swept off the coating with a soft brush.

It is also necessary to stipulate the requirement that in no case can the corrugated board be fixed on the crate with nails or rivets, since such fasteners will not hold the canvas in the event of a high wind load. The wind can easily tear off the roofing, and the nails will remain in the bars of the crate.

Installation of additional elements

In addition to corrugated sheets, there are other elements in the roofing structure that help protect the building from the penetration of precipitation into the attic. It should be noted that the presence of even one formed or unclosed gap in the roof can seriously damage the ceiling, as well as the walls and ceiling of the house.

Additional elements of the roof include a ridge, valleys, lining of pipes passing through the roof, cornice boards and others.

Skate mount

After the installation of corrugated sheets is completed, at the highest point of the roof, its edges are covered with a ridge.

The ridge is fixed with the same self-tapping screws, through the top of the corrugated boarding waves, with a step of 200 ÷ 300 mm. In order for the fastening to become reliable, it is necessary to foresee two longitudinal boards on both sides of the ridge when installing the crate.

When installing the ridge, it must not be pressed closely to the highest point of the roof - there must be a ventilation gap between it and the inner surface of the ridge element.

If a semicircular type of ridge is installed, then special plugs are installed and fixed on its end sides.

Since the skate is assembled from separate elements, they are also overlapped. Simple skates, having the shape of an angle, should have an overlap of 120 ÷ 150 mm, and semicircular (tiled) - 100 ÷ 120 mm, with their alignment along the stiffeners.

Take advantage of our article.

Finishing the gable part of the roof from corrugated board

To exclude the possibility that the corrugated board will be torn off by the wind from the end side, the gap between the sheets and the crate is closed with wind angles or planks, which are superimposed on one side of the corrugated board, and on the other - on the first rafter facing the end of the building. The bar is also fixed with self-tapping screws with a pitch of 400 ÷ 500 mm.

Facing the end part of the roof. 1 - wind bar, 2 - self-tapping screws

Since the planks are also made up of individual elements, they are overlapped by 70 ÷ 100 mm.

Cornice fixing

The eaves are installed before the flooring of the main roofing material. It plays both a decorative role, closing the side connections of the truss system, and a functional one, preventing splashes from falling onto the wooden parts when water flows from the roof into the drain. In addition, brackets are attached under the cornice or on top of it for laying the gutter.

Most often, at first, the drain brackets are fixed to the crate with self-tapping screws at a distance of 500 ÷ 600 mm from each other. They are lowered below the crate by 100 ÷ 150 mm.
Then the gutter is installed on the brackets.
After that, a cornice strip is installed and nailed or screwed to the bottom board of the crate.

Sheets of corrugated board are laid on top of the cornice strip, and must be leveled so that the water draining from them directly falls into the fixed gutter

Valley installation

The installation of a valley is not required for every roof, but only where it has a complex configuration with profile fractures. If there is a conjugation of two planes, turned downwards, then mounting this element is indispensable.

The valley consists of two parts - internal and external.

The inner part of the valley is laid even before the roofing. It is fixed at the junction of two roof planes and fixed to the crate with roofing screws in increments of 350÷500 mm. Separate parts of a long valley are laid, starting from the eaves and rising to the ridge, with an overlap of 150 ÷ 200 mm.

After the sheets of corrugated board are laid (with a shift to the inside of the valley by 80 ÷ 100 mm), a layer of porous sealant is laid between them and the inside of the valley. This material will prevent leakage during rain. Then the corrugated board through the bottom of the waves with a step of 400 ÷ 500 mm, together with the lower part of the valley, is screwed to the crate with self-tapping screws.
After that, silicone sealant is applied to the edges of the sheets of corrugated board, and the outer part of the valley is laid on it. Just like the inner part, it is composite, so its parts are overlapped by 100 mm, starting installation from the eaves and anointing the joints with sealant.

After that, the outer part of the valley is screwed with screws to the corrugated board.

Fastening snow retainer

Snow guard- this is an element that will not allow a sharp descent of snow from the roof in the spring, delaying it and giving time to melt and drain with water or evaporate.

Snow guards There are two types - these are peculiar strips in the form of corners, scrolling in a checkerboard pattern, or horizontal tubular barriers installed in special brackets.

The brackets are attached to the corrugated board surface at a distance of 900 ÷ 1000 mm. Then, special tubes with threads along the edges are inserted into the holes in them, onto which, after their installation, metal plugs are screwed.

Both brackets and slats snow retainers fastened through the corrugated board to the crate. When fixing the planks, they are screwed through the top of the wave, so gaps are formed between the plank and the corrugated board, through which the melt water will leave.

Wall profile covering the joint between the wall and the corrugated board

If the corrugated roof is adjacent to the wall, then the joint between them must be closed to prevent leakage. For this, there is a special figured bar - a wall profile, which is mounted on the wall with the help of anchor fasteners, and on the metal profile - with self-tapping screws screwed into the crest of the wave.

Silicone sealant can be used to seal the junction of the plank with the wall. It is also advisable to make a strobe in the wall in order to hide the upper curved edge of this profile into it. After installation, the strobe can be sealed, for example, with cement mortar or tile adhesive for outdoor use.

Seals for corrugated board

Sealers are used in roofing to close gaps at the joints of the coating with the wall, in places of "fractures" of hipped roofs and under the ridge.

Seals usually have an adhesive layer on one side, covered with parchment, which is removed before installation, and the material is glued in the right place.

Making the passage of the pipe through the corrugated board

If a chimney of a stove or fireplace, or a ventilation duct, passes through the corrugated board, you will have to work on it. But before do work on the external finish of the joints, it is necessary to install around chimney inner apron, which mounted before laying on the corrugated boarding crate.

An apron is installed around the pipe from separate metal adjoining profiles. On the walls of the chimney, using a marker, a line is marked along which a strobe will be punched to bend the upper edge of the adjacent profiles into it. Then it must be thoroughly cleaned of dust and rinsed with water.

After that, the so-called tie - stripe a metal sheet having flanges, which are mounted from the pipe to the eaves. A tie is needed to drain the water that accumulates behind the pipe during rain.

After that, the lower part of the apron must be fixed for sealant, on the crate and a tie laid on the sides of the pipe, and install the upper edge in a strobe, also on sealant. When installing the parts of the adjoining plank, they must overlap each other by 150 mm.

After the internal work is completed, the installation of corrugated board is carried out. When the roofing material is laid around the chimney pipe, the outer apron strips are mounted, which are fixed on the pipe and on the ridges of the corrugated board on the roof.

The general sequence of roofing with corrugated board

So, knowing how the installation of all additional elements and the corrugated board itself is carried out, we can consider the sequence of work on covering the roof with this roofing material.

The first step is to cover the truss system. It is laid from the cornice, horizontally overlapping the slope by 100 ÷ 150 mm. The film is fixed with a stapler with staples on the rafter legs.
On top of the film to the rafters are nailed the bars of the counter-lattice, which will create the necessary ventilation gap between the film and the roofing material. The size of the bars should be 400 × 500 mm, that is, the ventilation gap will be 400 mm.
A crate of slopes is arranged perpendicular to the counter-lattice. Here it is necessary to provide additional ridge boards - they are located on both sides of the roof ridge. Also, additional boards or bars are mounted around the chimney and at the joints of the roof planes to secure the valley (angle inward) or ridge element (angle outward).
Further, wind boards are fixed on the gable sides of the roof.
Then brackets for the drain gutter are fixed on the bottom board of the crate, and the gutter itself is laid.
A cornice plank is nailed to the extreme board of the crate.
The next step is to fix the inside of the valley, if necessary in the roof structure.
Then you can proceed to the arrangement of the waterproofing of the chimney pipe. A tie is laid along its edges, going to the cornice - it is fastened over the cornice strip. Next, install sealed elements of the inner apron adjacent to the pipe.
Having dealt with the internal additional elements, which should be under the roofing material, they proceed to the installation of corrugated sheets. To pass the pipe in one or two sheets, an opening of the required size is measured and cut out with the help of electric scissors. The edges of the corrugated board should cover the parts of the apron fixed on the crate and come close to the pipe. It is possible to leave a gap of 50 ÷ 70 mm.
Further, at the junctions of the two sections of the roofs, the outer part of the valley is fixed.
After that, metal elements of the ridge are fixed at the highest point of the roof.
The last step from the gable side to the corrugated board and the wind board is fixed windproof corner.

So, as you can see, there is nothing supernatural in laying such a roof. Having studied the sequence of work and the technology of their execution, enlisting the assistance of reliable assistants, acquiring the necessary material, preparing tools, you can safely start covering the roof with corrugated board on your own.

And at the end of the publication - a useful video with the intricacies of the process of corrugated roofing.

Video: important nuances when laying corrugated board as a roof

Among the wide variety of roofing materials used to build roofs over residential buildings, metal roofing is considered the most durable and practical. Roofing steel has only two drawbacks, poor corrosion resistance and low load-bearing capacity, which prevents it from becoming a strong competitor.

However, on the basis of this alloy, modern roofing coatings are obtained, which are characterized by improved characteristics. Easy installation, convenient dimensions and relatively low price make the metal profile popular with most developers. However, it is important to know everything about the material and how to properly cover the roof with a metal profile.

Types of metal profile for the roof

The metal profile is considered one of the practical roofing materials made on the basis of galvanized steel. Unlike sheet material, it has a pronounced profile, which increases the rigidity of the material and its load-bearing capacity. The thickness of the coating sheets can vary from 0.5 to 1.2 mm, and the dimensions depend on the preferences of the customer.

The metal profile can be of two varieties:

Decking.
Metal tile.

The first roofing is made from galvanized steel sheet, at one of the production stages a profile is formed in the form of a rectangle or trapezoid. The height of the profile can be different, from 1 to 10 cm, which significantly affects the bearing capacity of the sheet and its strength, the roof of the metal profile also looks different. Installation of profiled sheets is carried out on a crate of boards or bars, while the roof slopes must have a slope of more than 12 degrees. According to experts, it is possible to cover the roof with a metal profile with a slope of 8-9 degrees, but on condition that thorough waterproofing is carried out at the joints.

As for the cost, for a metal profile it is lower than for a metal tile, but the decorative properties are also characterized by less potential.

The metal tile is also made on the basis of galvanized steel, but unlike the first option, it has a protective polymer coating. The profile of this material has a wave shape, which allows you to create a semblance of a classic tile. The thickness of the sheet and the height of the profile are much smaller than those of the profiled coating, but the visual appeal is higher. Convenient sheet sizes and special locks greatly simplify installation work.

Advantages of a metal profile

Due to its high practicality, the profile metal roof has gained great popularity. Especially this material has become widespread in the construction of low-rise residential buildings and country houses. In general, the metal profile can be called a universal material, as it is used for roofing, wall cladding and the construction of light buildings.

The advantages of the material include the following:

High strength characteristics. A roof made of profile metal is able to withstand a snow layer up to 3 meters thick, even on a crate with a large step.
Individual size. Profiled sheets can have different lengths, which makes it possible to use the coating in accordance with the length of the slope. In this case, horizontal seams are completely absent, and the waterproofing properties of the coating increase.
Ease. The weight of one sheet does not exceed 15 kg, which allows it to be mounted on a rafter frame with a sparse crate without additional reinforcement.
Corrosion resistance. By itself, steel does not enter into an oxidative reaction with air, and an additional polymer coating increases the resistance of the metal profile to corrosion.
Fire resistant. Galvanized steel is a non-combustible roofing material, therefore, the coating can be used for buildings with a high risk of fire.

Disadvantages of metal profiled sheets

Before you cover the roof with a metal profile with your own hands, it is important to learn about its shortcomings. The metal coating is characterized by high thermal conductivity and resonant ability, which can be reduced by additional insulation with appropriate materials.

In addition, a large amount of waste is generated during the installation of a metal profile, which requires the purchase of materials with a margin. This is especially true for roofs of complex shape.

How to cover the roof - the composition of the roofing cake

Covering the roof with a metal profile requires the creation of a multi-layer cake that will provide the roof with proper waterproofing, strength and thermal insulation. Each layer improves certain properties, extending the life of the coating.

Roofing cake for profiled metal coating consists of the following layers:

Crate. This layer is a flooring made of boards or bars, which are fixed directly on the rafter legs perpendicular to their direction. The metal profile can be mounted on a crate, the elements of which are located at a distance of 0.6-1 m.
Thermal insulation material. This layer is assigned the function of reducing the thermal conductivity of the metal coating and additional sound insulation. In most cases, thermal insulation is placed between the rafters.
Vapor barrier. This type of material is able to pass air and at the same time retain water vapor. This allows you to reliably protect the insulation and wooden frame elements from water and premature destruction. The vapor barrier membrane is laid on the underside of the rafter legs.
waterproofing material. This layer serves to protect the rafters and thermal insulation material from the negative effects of atmospheric moisture. The material is laid on the truss frame and fixed with a construction stapler.
Roof covering. Installation of a metal profile roof completes the selected type of roofing material. Sheets are mounted with an overlap of up to 25 cm, depending on the slope of the slopes. To fasten the canvases, special roofing screws equipped with rubber or latex seals should be used. In the process of screwing the self-tapping screw, the seal contracts and closes the hole, preventing moisture from entering.

Features of the installation of metal profiles

It is necessary to choose a lathing step for profiled steel sheets depending on the size of the sheet and its bearing capacity.

The amount of overlap of the sheets depends on the slope of the roof slopes:

With a slope of up to 12 degrees, the overlap must be at least 25 cm, and mandatory sealing of the joints is required.
A slope of 12-15 degrees allows you to reduce the overlap to 20 cm.
The angle of inclination of the slopes of 15-30 degrees requires an overlap of 15-20 cm.
The large slope of the slopes, more than 30 0, makes it possible to reduce the overlap to 10-15 cm.

1 Types and grades of sheet material
2 Preparations
2.1 Preparing the crate
3 Mounting order
4 Videos

The installation technique for the special profiled sheet used for roofing is relatively simple. To master it, it is quite enough to get acquainted with some features of the material used, as well as with the basic rules for handling it.

Before you cover the roof with a metal profile with your own hands, you need to carry out a number of preparatory operations of the following nature:

determine the angle of inclination of the future roof;
choose the right brand of profiled sheet blanks for the selected angle of inclination;
prepare fasteners corresponding to the selected material.

Complex roofing from corrugated board

The complexity of installation work increases significantly in the case of the construction of roofs of complex configuration.

Types and grades of sheet material

At the initial stage of the preparatory work, it is necessary to choose the type of profile sheet that suits your conditions, which can have the following designs:

Material grade "C", which is a sheet of a sinusoidal (trapezoidal) profile with a wave height of 8 to 44 mm, which is usually used for the construction of light roofs or as decorative wall cladding.
Sheets of the brand "NS" with a fixed wave height of 35 or 44 mm, used for arranging typical roofing.
Sheet material of the brand "H" with a height of a wavy profile from 57 to 114 mm, reinforced with stiffeners, which allows it to be used for covering solid roofs.

Roofing sheet brands

Before installing the roofing, you should familiarize yourself with how to choose the right amount of overlap between adjacent sheets, which depends on the angle of inclination of the roof itself. In this case, the following relations are valid:

at an angle of inclination within 12-15 degrees, the overlap should be at least 20 cm;
when the roof base is tilted at 15-30 degrees, this figure can be reduced to 15-20 cm;
in the case of an inclination angle of more than 30 degrees, the overlap is selected in the range from 10 to 15 cm;
at angles of inclination of the base less than 12 degrees, sealing of horizontal and vertical seams formed in the overlapping areas is mandatory. As a rule, ordinary silicone sealant is used for these purposes.

Preparatory activities

Roof waterproofing

Before closing the roof with a metal profile, it will be necessary to take care of the arrangement of waterproofing, which protects the wooden structural elements and insulation from the damaging effects of moisture. Waterproofing, which is usually used as a thick polyethylene film, is attached directly between the rafters using small building brackets. At the joining points of adjacent strips of film, a slight overlap is made (about 15 cm).

Particular attention should be paid to the fact that the protective waterproofing film should be stretched with a slight sag (about 2 cm), and between it and the insulation material there should be a small gap of about 2-3 mm.

Special ventilation slats are mounted on top of the waterproofing layer, creating conditions for air circulation in the free spaces under the crate and excluding the possibility of accumulation of unwanted wet fumes in this place.

Crate preparation

Crate preparation

For the installation of metal profile blanks, a special crate should be used, which provides the required strength of the roof structure and resists its breaking or deflection under the influence of wind loads or under the weight of fallen snow.

Scheme of the roof from corrugated board

Manufacturers of roofing metal products indicate the main parameters and the procedure for arranging the lathing for them in the instructions attached to the product. That is why, before starting work, it is recommended that you carefully study all the instructions for using the purchased material.

End plate fastening

At the end of the installation of the crate, a special end board is nailed to its pitched cut, the width of which must correspond to the height of the selected roofing profile.

Thus, the general composition of the roofing, the final layer of which is the metal profile itself, usually looks like this:

internal facing layer, for example, made of drywall;
ceiling slats used as an internal crate;
vapor barrier protective film;
slabs of insulating material placed in niches between the rafter legs;
waterproofing protective coating, which excludes the possibility of accumulation of moisture in the area where the insulation is located;
special ventilation gap;
outer crate;
the coating itself (metal profile).

Roof pie from corrugated board

Mounting order

Rules for installing corrugated board

Laying of roofing sheets with overlap corresponding to the angle of inclination should be carried out starting from the lower corner of the blood. In this case, the following sequence of installation must be observed:

the first sheet is located on the roof in such a way that its lower cut protrudes 3-4 cm beyond the overhang;
then this sheet is baited using special self-tapping screws with rubber seals, screwed into pre-prepared holes located at the bottom of the wave;
at the same time, each subsequent overlapped sheet is aligned along the edge of the previous one, and then it is also baited;
after the formation of a row of 3-4 sheet blanks, the latter are finally fixed on the crate;
the second and all subsequent rows of the coating are mounted in the same way (taking into account the overlap indicated in the instructions with the previous row).

fasteners

Sheets are attached to the crate every second wave.

In the course of work, it should always be remembered that it is only allowed to move along the finally fixed workpieces. In this case, the feet should be placed in the recesses of the waves, based on the elements of the crate.

Overlap is important

On the features of the installation of corrugated board, see the video below:

1 Types and grades of sheet material
2 Preparations
2.1 Preparing the crate
3 Mounting order
4 Videos

Before you cover the roof with a metal profile with your own hands, you need to carry out a number of preparatory operations of the following nature:

determine the angle of inclination of the future roof;
choose the right brand of profiled sheet blanks for the selected angle of inclination;
prepare fasteners corresponding to the selected material.

Complex roofing from corrugated board

The complexity of installation work increases significantly in the case of the construction of roofs of complex configuration.

Types and grades of sheet material

At the initial stage of the preparatory work, it is necessary to choose the type of profile sheet that suits your conditions, which can have the following designs:

Material grade "C", which is a sheet of a sinusoidal (trapezoidal) profile with a wave height of 8 to 44 mm, which is usually used for the construction of light roofs or as decorative wall cladding.
Sheets of the brand "NS" with a fixed wave height of 35 or 44 mm, used for arranging typical roofing.
Sheet material of the brand "H" with a height of a wavy profile from 57 to 114 mm, reinforced with stiffeners, which allows it to be used for covering solid roofs.

Roofing sheet brands

at an angle of inclination within 12–15 degrees, the overlap should be at least 20 cm;
with a slope of the base of the roof of 15–30 degrees, this figure can be reduced to values of 15–20 cm;
in the case of an inclination angle of more than 30 degrees, the overlap is selected in the range from 10 to 15 cm;
at angles of inclination of the base less than 12 degrees, sealing of horizontal and vertical seams formed in the overlapping areas is mandatory. As a rule, ordinary silicone sealant is used for these purposes.

Preparatory activities

Roof waterproofing

Crate preparation

Scheme of the roof from corrugated board

End plate fastening

At the end of the installation of the crate, a special end board is nailed to its pitched cut, the width of which must correspond to the height of the selected roofing profile.

Thus, the general composition of the roofing, the final layer of which is the metal profile itself, usually looks like this:

internal facing layer, for example, made of drywall;
ceiling slats used as an internal crate;
vapor barrier protective film;
slabs of insulating material placed in niches between the rafter legs;
waterproofing protective coating, which excludes the possibility of accumulation of moisture in the area where the insulation is located;
special ventilation gap;
outer crate;
the coating itself (metal profile).

Roof pie from corrugated board

Mounting order

Rules for installing corrugated board

the first sheet is located on the roof in such a way that its lower cut protrudes 3-4 cm beyond the overhang;
then this sheet is baited using special self-tapping screws with rubber seals, screwed into pre-prepared holes located at the bottom of the wave;
at the same time, each subsequent overlapped sheet is aligned along the edge of the previous one, and then it is also baited;
after the formation of a row of 3–4 sheet blanks, the latter are finally fixed on the crate;
the second and all subsequent rows of the coating are mounted in the same way (taking into account the overlap indicated in the instructions with the previous row).

fasteners

Sheets are attached to the crate every second wave.

In the course of work, it should always be remembered that it is only allowed to move along the finally fixed workpieces. In this case, the feet should be placed in the recesses of the waves, based on the elements of the crate.

Overlap is important

Video

On the features of the installation of corrugated board, see the video below:

Advantages and features of mounting a roofing metal profile on a roof

Every year, especially for the arrangement of private houses, more and more people choose a metal profile for the roof. This coating looks decent on a residential or country house. The good characteristics of the profiled metal sheet provide a large bearing capacity of the material, and the absence of joints provides reliable protection from rain and other atmospheric precipitation.

Products are produced with a given width of 900 or 1100 mm. The length varies depending on the wishes of the customer. The thickness of the sheets is 0.45-0.8 mm. The metal profile for the roof is manufactured in accordance with GOST 380–71. The roof is covered with products with a corrugation height of 44 mm. In suburban construction, bent profiles with sealed joints made of galvanized steel with a thickness of 0.6–1.5 mm, with a paint coating and a length of 12.5 m are common.

Other characteristics that are at the same time advantages:

Sheets are labeled in accordance with GOST 75–66: the sheet designation, quantity and length in the package are indicated. Be sure to indicate the mass of the package, on the label package number and batch data are marked. The roof is covered with a profile marked "H" and a wave height of 35 mm.

Single and gable roofs made of metal profiles

In suburban construction, roofing metal profiles are used to cover shed roofs. The slope will last a long time, provided correct calculation of the angle of inclination of the roof, which directly depends on the area of \u200b\u200bthe building and the materials used in construction. The angle of inclination of the roof can be 5-60 °. With its increase, the consumption of roofing material increases. A metal profile can be used if the slope angle does not exceed 25 °. The device of a 2-pitched roof begins after the roof slope is established. Permissible value - 1:7.

Material Quantity Calculation

The first step is to calculate the number of rows. If the total width of the sheet is 1.19 m, and the working width is 1.11 m, the sheets are calculated along the horizontal slope. The length of the horizontal slope is measured and divided by the working width of the sheet. The overlap of the rows horizontally is equal, respectively: 1.19−1.11 = 0.08 m.

To form a row the total number of sheets is calculated. The length of the sheets is also calculated, for which the following formula is used: D \u003d A + B + C, where:

A - slope length.
B - cornice overhang (0.05 m).
C - vertical overlap of sheets (0.15 m).

The volume of thermal insulation material is calculated by multiplying the roof area by its thickness, that is, by 0.2 m. Fastening is carried out with self-tapping screws. The amount of waterproofing material is calculated by dividing the total area of the roof by the area to be covered. The result will indicate the required number of rolls.

Tools and materials for installation

Before starting work, everything you need should be at hand and in proper condition. The installation of metal profile sheets provides for the following tools:

The following materials will be needed:

waterproofing material;
boards;
wooden bars.

Basic installation steps

Installation begins with laying a waterproofing layer that does not allow moisture to pass into the insulation, on the rafters and the crate. For the convenience of work and the prevention of errors, a roof plan is drawn up in advance, indicating the parameters of its main elements:

A superdiffuse membrane is used for the lining device. A roof slope of 1:7 (8) is taken into account. Work on such a roof is carried out with extreme care. The lining prevents condensation and protects the thermal insulation material. The lining is laid from the overhang to the ridge. Fastening is carried out with 25 mm nails, in increments of 20 cm. A counter rail is used for fastening to the rafters. The edges wrapped inside are fastened to the end board with nails.

Installation begins from the lower corner of the roof, the profiles are overlapped and fastened to the lathing beams with self-tapping screws with rubber seals.

When installing a 2-pitched roof, the profiled sheet begins to be fixed from the right end. In the case of a hipped roof, the profile begins to be fixed from the highest point of the slope. Sometimes an aluminum profile is used for hipped roofs.

First of all, the cornice strip is mounted with self-tapping screws. A profile seal is placed between the eaves strip and the sheet of roofing material. The eaves plank is extended 3-4 cm beyond the overhang. On one side of the profiled sheet there is a drainage groove, which should be located below.

If the slope of the slope is insignificant, sealing is performed in the longitudinal seam or the sheets are overlapped, two waves in size. In this case, the sheets are aligned along the overhang.

The profile is temporarily fastened with self-tapping screws near the ridge and overhang, the edge drops by about 4 cm beyond the edge of the roof. The next element is mounted, its edge at the overhang is aligned with the previous sheet and fixed in a similar way.

The sheet is connected to the previous self-tapping screws at the crest of the wave. The direction is carried out from the overhang to the ridge in increments of 50 cm.

After 3-4 sheets are laid in the manner described above, they are aligned along the line at the roof overhang and finally fixed.

Fastening to the crate is done at the bottom of the wave through one corrugation.

Further laying is carried out with an overlap of 20 cm and fastening to the crate using roofing screws 4.8 × 35 mm.

During installation, they move along the roof along the already fixed sheets, put their feet in the grooves of the sheet on the beams of the crate. Workers' shoes should have soft non-slip soles. Facade cladding is made with a wall profile without a capillary groove.

Metal profile roof - types, characteristics and installation

Metal roofing was one of the first truly durable and practical roofing materials used for residential construction. The disadvantages of roofing steel were considered only low corrosion resistance and load-bearing capacity. Modern materials based on this alloy have better characteristics compared to it, so the metal profile is very popular with developers. Convenient sheet sizes make it easy to install the cover, and the affordable cost allows you to use it even on a limited budget. In this article we will tell you how to cover the roof with a metal profile so that it lasts for many years.

Varieties

Metal profile for the roof is a practical roofing material, which is made of galvanized steel. It differs from the sheet metal used for the construction of a seam roof by a pronounced profile, which gives the coating additional rigidity and load-bearing capacity. The thickness of the metal profile sheet is 0.5-1.2 mm, and the dimensions can vary at the request of the customer. There are two types of this roofing:

Decking. Profiled roofing is called galvanized steel roofing, which is given a trapezoidal or rectangular profile during the production process. The height of the sheet profile of this material can vary within 1-10 cm, the bearing capacity and strength of the corrugated board depend on this indicator. Installation of a profiled steel sheet is carried out by the method on a wooden sparse crate. The cost of this material is less than metal tiles, however, it has less decorative potential.

Note! The metal profile is suitable for roofs with a slope angle of at least 12 degrees. However, professional roofers and manufacturers of this practical material claim that it is possible to make a reliable metal coating for a roof with a slope of 8-9 degrees, provided that the joints are carefully waterproofed with a sealant.

Advantages and disadvantages

A metal profile roof is highly practical, so it is the most common design solution for low-rise residential and garden houses. In addition, corrugated board is a truly versatile building material, with which you can cover the roof, sheathe walls or even build a garage. The advantages of a metal profile are:

High strength. The strength of the profiled steel sheet is so high that it can withstand a 3-meter layer of snow even with a very rarefied crate.
A light weight. The weight of a sheet of this material, depending on the thickness of the metal and the height of the profile, is 5-15 kg. A small mass allows you to mount the coating on a sparse crate.
Corrosion resistance. Galvanized steel is inert with respect to air, therefore it does not enter into oxidative reactions with it. More resistant to corrosion, the material helps to make a special coating of resistant polymer.
Universal sizes. It is possible to make sheets, the size of which corresponds to the length of the slope, in order to avoid horizontal seams during installation, which reduce the waterproofing qualities of the coating.
Fire resistance. Galvanized steel is a non-combustible roofing material, so its installation can be carried out even in buildings with an increased risk of fire.
Low weight. Due to the fact that the metal profile weighs little, installation can be performed without reinforcing the truss frame.

Please note that metal roofs have high thermal conductivity and resonant ability, so their installation is carried out in combination with an insulating material. In addition, the disadvantage of this type of roofing is the large amount of waste generated due to the fact that the shape and size of the sheet require significant adjustment during installation.

roofing cake

Roofing from a metal profile has a complex, multilayer structure, which gives it the necessary waterproofing, strength and heat-insulating qualities. Each layer of construction improves the quality and extends the life of the roofing. The roofing pie for the metal profile looks like this:

Crate. A crate is a sparse flooring made of edged boards or slats fixed across the rafter legs, on which roofing material must be attached. For a profiled steel sheet, a sparse crate is required in increments of 60-100 cm.
Thermal insulation. Thermal insulation is necessary to reduce the thermal conductivity of the material and sound insulation. It is necessary to fix the insulation plates between the rafter legs of the frame.
Vapor barrier. Vapor barrier is a special membrane that allows air to pass through, but does not allow water molecules to pass through. It serves as protection for the roof frame and insulation from getting wet and rotting. The vapor barrier material is fixed on the underside of the rafters.
Waterproofing. Waterproofing material protects the rafters and insulation from atmospheric moisture. It must be fixed on top of the rafters using a construction stapler.
Finish coating. The top layer of the roofing cake is metal tile or corrugated board, which are overlapped with an overlap of 10-25 cm.

Important! Installation of the finishing coating is carried out using special roofing screws, which are equipped with special press washers made of rubber or latex. When screwing the screw, the washer is deformed and closes the mounting hole from the penetration of atmospheric moisture.

Design features

The size and bearing capacity of the sheet affects the size of the step of the crate under the metal profile. And the amount of overlap between the roofing sheets is determined by the angle of inclination of the slopes:

On low-slope roofs with a slope angle of less than 12 degrees, the metal profile is laid with an overlap of 25 cm, subject to mandatory sealing of the joints.
On low-slope roofs with a slope of 12-15 degrees, the overlap should be 20-25 cm.
On medium-slope roofs with a slope of 15-30 degrees, the overlap is 15-20 cm.
On steeply sloping roofs, where the angle of inclination of the slopes exceeds 30 degrees, the installation of the coating is carried out with an overlap of 10-15 cm.

Experienced craftsmen claim that the turnkey installation of a roof made of metal tiles, excluding the cost of the material, is 1000-1500 rubles per square meter.

Video instruction

How to make a roof from a metal profile with your own hands?

In the construction of cottages and dachas, such a practical and inexpensive material as roofing sheeting is often used to cover roofs. This material is available in different colors, so it can be used to give your home an attractive and unique look. The technology for installing a roof from a metal profile is quite simple, therefore, home craftsmen often take on their own to carry out the work of laying the coating on the roof. Consider how a roof from a metal profile is mounted with your own hands.

When choosing a material for laying on the roof, the owners always strive to choose the most reliable and, at the same time, affordable material. For example, if a metal profile is chosen as a coating, the roof will turn out to be strong and airtight, while the purchase of material will be inexpensive.

And if roofing work is also done by hand, then the arrangement of the roof will not greatly affect the family budget. Consider how you can lay profiled metal sheets on the roof with your own hands.

Main characteristics of the material

First of all, you need to decide on the choice of material, for this you should find out what types of metal profiles for roofing exist, and what parameters you should pay attention to when choosing.

Steel profile sheets are made in accordance with the requirements of GOST 380-71. To cover the roof, it is recommended to choose sheets with a corrugation height of at least 21 mm.

Moreover, the best option is considered to be a material with a profile height of 44 mm or more. The thickness of the steel base of the material for laying on the roof should be within 0.4 -0.7 mm. It is better to choose a material that has a polymer coating.

Advice! A polymer-coated material should be preferred not only because it looks more attractive than conventional galvanizing, but also because the polymer layer protects the steel base well from external influences and, accordingly, increases the service life of the coating.

When choosing a material, special attention should be paid to the dimensions of the metal profile for the roof. The width of the sheet can be from 75 cm to 1.15 meters, but the length should be chosen depending on the length of the slope.

If possible, it is recommended to lay the metal profile in one row horizontally, ordering sheets along the length corresponding to the length of the slope, taking into account the width of the cornice overhang. In the event that the slopes are long, then you will have to plan a two-row installation.

Preparation for installation work

When planning to use a metal profile for a roof, you will need to prepare well for installation: carry out waterproofing work, build a crate.

Roof waterproofing

When using metal roofing materials, roof waterproofing is included in the mandatory list of works. The fact is that condensate accumulates on the inner surface of metal coatings, therefore, in the absence of waterproofing, water will penetrate into the insulation and destroy the internal structures of the roof.

Advice! The use of roofing felt or roofing felt as a waterproofing material is not rational, since these coatings will fail much earlier than the metal profile itself, and the roof will require repair much earlier.

The waterproofing film should be laid horizontally, laying out the panels parallel to the eaves. The material should not be pulled between the rafter legs, on the contrary, it is laid freely, with a slight sag.

It is convenient to fasten the material to wooden structures using a construction stapler. The panels are laid so that they form an overlap at least 10 cm wide at the joints. They are connected to each other using double-sided adhesive tape.

Counter-lattice and crate

In order to leave a gap between the roofing and the waterproofing coating for the free passage of air, it is necessary to build a counter-lattice. It is made of bars with a cross section of 50 mm, which are nailed to the rafter legs with galvanized nails.

Next, you should proceed to the installation of the crate. This point is very important, since the crate is a design that ensures the strength and reliability of the metal profile coating. Properly assembled crate prevents the coating from deflecting under the influence of wind or snowfall.

Advice! As a rule, large manufacturers of roofing materials offer buyers installation instructions that detail the requirements for the batten. Therefore, if you are going to roof a metal profile with your own hands, you must carefully study the manufacturer's recommendations.

In most cases, the crate for the metal profile is assembled from timber or boards 50 mm thick. The step of the arrangement of the elements depends on the slope of the slopes. On flat roofs, solid flooring is assembled, if the slope of the slopes is more than 15 degrees, then they make an allowed crate with a distance between the elements of 20-30 cm.

At the locations of internal corners, as well as at chimneys and other vertical superstructures, a solid flooring is assembled for the installation of shaped elements. A cornice board is nailed along the cornices, on which special hooks are attached for laying the catchment gutter.

Laying and fastening sheets

After the base is prepared, the roofing of the roof with a metal profile begins, that is, the direct laying of sheets. Here are the rules for doing the job:

To fasten the sheets to the crate, self-tapping screws measuring 4.8 by 28 mm are used. Self-tapping screws are screwed into the places where the profile is lowered, that is, in those places of the coating where it fits snugly against the crate.
When fastening the sheet in its lower and upper parts, self-tapping screws are screwed into each profile depression. On the sides, in places where adjacent sheets overlap with each other, self-tapping screws are placed in increments of 50 cm. In the middle part of the sheet, the screws are screwed in, skipping one wave, and placing the hardware in a checkerboard pattern.

Advice! In order for the sheet to be securely fixed to the base, it is necessary to use 7-9 screws per square meter of roofing.

Before laying the sheets on the coating, the internal extensions of the roof are installed. It is necessary to install cornice strips on the ends of the cornices, the internal elements of the valleys and the junction strips at the pipes.
The layout of the sheets on the slopes depends on the shape of the roof and the height of the ridge. On rectangular slopes, installation begins from the eaves, on triangular slopes - from the ridge.
The size of the overlaps between the sheets depends on the slope of the slopes. On flat roofs, the overlap should be 25 cm, on those with an angle of inclination of more than 15 degrees, sheets are laid with an overlap of 15-20 cm. On steeper slopes with a slope of more than 30 degrees, the width of the overlap should be at least 10 cm.
Having finished laying the sheets, proceed to the installation of ridge elements. Then you will need to nail the gable strips and install the external elements of the junctions and valleys.

So, a metal profile roof is a practical and reliable solution for the roof of a house or outbuilding. You can mount a roofing from this material with your own hands.

Detailed installation of corrugated roofing and do-it-yourself installation of a roof covering according to a lightweight scheme

Decking - profiled roofing made of steel, galvanized or painted.

Materials for the manufacture of corrugated board can be pural, plastisol, polyester.

Thanks to material made by cold rolling, the integrity of the polymer coating of the roofing material is preserved.

Externally, the corrugated board resembles slate. The configuration of material waves can be different (rectangular, trapezoidal), as well as different heights and lengths.

In this article, you will learn the device of the roof from corrugated board and how to properly cover the roof with corrugated board with your own hands.

Read about the types of corrugated board here.

Preparing tools before installing the roof

Before installing the roof, it is necessary to correctly calculate the amount of corrugated board, taking into account the required margin.

Necessary tools for roofing work on roofing and installation of a drain:

hacksaw for metal;
rope;
a hammer;
drill with a set of drills and additional knives for metal;
roulette;
rail;
cutting shears with additional knives;
electric scissors;
lever scissors;
pliers for corrugations;
knife for cutting thermal insulation;
rivet pliers;
staple gun (with a set of spare staples);
template for performing the crate step;
screwdriver (set of suitable screws).

The structure and arrangement of the roof of corrugated board

roofing cake - an important component of any roof. The design of the entire roofing pie consists of sequentially laid layers of materials that are required to provide heat, create a microclimate (humidity and ventilation systems) throughout the building. The device and method of laying the roofing cake depends on the purpose of the room.

For living quarters the layers of the roofing cake are laid in the following order, starting with the interior decoration of the room:

When arranging a roofing pie for non-residential premises, layers of insulation and vapor barrier are not laid. Air flow shafts and chimney outlets are equipped with a heat-insulating layer to prevent them from freezing.

Roof device from corrugated board: scheme

Preparation and installation of the crate

Before installing the crate under the covering corrugated board, it is necessary to determine the size of the crate step, measure the length, width of the sloping part of the roof.

Lathing step calculation

Boards are used to make the crate ( up to 5 cm thick) with a continuous crate or bars ( having a cross section of at least 5 cm by 5 cm) with a discharged crate. The type of lathing is determined depending on the angle of inclination (slope) of the roof.

The dependence of the step of the lathing on the angle of the roof

In addition, the material must be well dried. It is better to choose a tree of beech, pine or alder.

Lathing installation

The crate is installed on the rafters. To perform a smooth horizontal laying use a rope that is pulled parallel to the already laid board. Together with the rope, a pre-prepared template is used.

The height of the corrugated board profile affects the width of the crate step: the smaller the wave and the height of the profile, the smaller the pitch of the crate.

Start laying from the eaves. First, the main thicker board of the crate is fixed. Then the bars are laid from the bottom of the roof up in compliance with the step, or the boards are laid in a continuous layer.

Fasten boards preferably self-tapping screws, nails or special brackets - a couple of nails per board, bars - to each rafter board - for one nail. It is recommended to use fasteners twice as long as the thickness of the board (beam) of the crate. The joints of the bars along the length must be fastened with staples or special nails. When the base of the roof is concrete, the crate is fixed with dowels.

Protective boards are attached to the ends of the slope, equal to the height of the profile of the roofing corrugated board.

When the crate is completed, you should start laying the corrugated board.

The procedure for fixing sheets on the roof

It is important to fasten sheets of corrugated board with special self-tapping screws. If the roof pitch is less than 12° , then all joints of the sheets (having an overlap of at least 25 cm) are fixed with a sealant.

Instructions for laying corrugated roofing:

fastening of sheets with self-tapping screws is carried out strictly along the lower wave through one. In the lower and upper rows, each wave is fastened with screws;
when screwing in self-tapping screws, use low speed, since when pressed, the formation of a deflection of the material is possible;
when overlapping in one wave, a special rubber gasket should be used(with a roof slope of up to 16 °), while when applying a sheet in two waves, no gasket is required;
it is recommended to fasten the sheets to the crate with special self-tapping screws, having a color polymer coating and rubber ring gaskets, and between the sheets themselves - with special rivets;
end planks and ridge are laid after the application of the main coating of the entire roof.

The last step covering the roof with corrugated board is the installation of exits for pipes, air ducts and adjoining strips.

The correct technology of laying the coating is the key to high-quality laying.

Overlap of corrugated board on the roof

For, to avoid roof leaks, it is necessary to correctly calculate the overlap details of roofing corrugated board.

The main indicator for calculating the overlap is roof slope:

if the slope is less than 15°, then the overlap of the sheets must be at least 20 cm and at least two waves;
if the slope is 15°- 30°, then the overlap should be from 15 to 20 cm;
with a slope of more than 30° overlap width should be between 10 and 15 cm.

How to cover the roof with corrugated board

With a horizontal overlap, its width should be at least 20 cm. At the same time, all overlaps are sealed.

Do-it-yourself installation of corrugated roofing

Covering the roof with corrugated board can be done even by a beginner in the construction business, subject to the installation requirements.

First of all, it is important to follow the instructions for the material, bought for the arrangement of the roof.

In addition, the choice of high-quality and certified material plays a big role in the quality of the future coating.

Mandatory stages of preparing the roof for laying the roofing profiled sheet:

correct and obligatory laying a waterproofing layer;
arrangement of ventilation by imposing slats on the waterproofing layer;
plank flooring on both sides of the gutter at a distance of about 60 cm under the valley plank on a crate with an overlap of 20 cm at the valley boards;
installation of a cornice strip, while the waterproofing layer should be higher.

Depending on the roof structure sheets of corrugated board are laid:

with a rectangular sloping roof. Installation of corrugated board on the roof is carried out from the lower corners of the roof. Lay several (2-3 pieces) sheets in the first row, securing them with one self-tapping screw. Then they mount the second row - 1-2 sheets of corrugated board. The rows are aligned along the eaves and fixed thoroughly;
with a triangular roof or a trapezoidal roof sheets of corrugated board are attached in two directions from the guide from the edge of the ridge perpendicular to the cornice strip.

Installation of additional elements

Fastening of corrugated board elements should be carried out in the following order:

the first sheet is placed in the lower corner roofs, taking into account the overhang (with a wave depth of up to 10 mm, the length of the overhang should be no more than 100 mm, in other cases, the length of the overhang should not be less than 200 mm);
parallel to the eaves overlap no more than two waves the following sheets are stacked;
second row of roofing sheets laid by applying a transverse overlap(about 20 cm) on the bottom row. Per square meter of corrugated board, from 6 to 8 self-tapping screws are required.

Next, the installation of end and ridge trims is carried out. The installation of the wind bar is carried out from the side of the hinged part to the ridge. The missing length is increased by overlapping the planks, and the excess is cut off. Thus, one of the waves of the sheet is covered with a plank. The bar is attached with self-tapping screws to both the end board and the corrugated sheets. At a low wave height of the sheets, a sealant is placed between the roofing material and the elements of the ridge.

Installing the wind bar

The installation of the roof with the wall is carried out using a ridge seal, which is mounted between the butt plate and the upper edge of the roofing profiled sheet. With a sloping roof, it is better to lay a longitudinal seal. With a steep steep slope - transverse.

Subject to the sequence of steps for installing roofing corrugated board, you can independently cover the roof with corrugated board with your own hands.

Common installation errors

Subject to certain nuances for the installation of corrugated roofing, mistakes should be avoided which can lead to serious consequences:

it is important to start laying the corrugated board from the correct edge. Having measured the edges, laying should be done from the edge with the smallest indicator. In this way, gaps in the overlap can be avoided;
when applying material stepping on the bottom layer should be avoided to prevent displacement;
do not align the sheets along the edge of the butt. A rope should be used as a level;
it is important to take into account the direction of the wind on the ground. Sheets laid against the wind are able to pass snow and rain flows.

Thus, the roofing from the corrugated board can be correctly laid both with the help of specialists and on your own. Compliance with the instructions and simple rules will help to cover the roof with high quality and provide reliable protection to the house.

Useful video

How to properly cover the roof with corrugated board, see the video: