We carry out the correct installation of corrugated board on the roof. How to cover the roof with a profiled sheet: step-by-step instructions, processing nodes Step-by-step roofing with corrugated board on your own

Building a country house is not an easy task. But what could be more reliable and cozier than a home built with your own hands?

When the walls are ready, it's time to build the roof. This is a crucial stage of construction, on which a lot depends. One of the modern and practical roofing materials, corrugated board, is easy to install and reliable in operation. How to independently build a roof from corrugated board?

Material selection

The professional flooring represents sheets of stamped galvanized steel. They are relatively light weight and bend easily. The profiled sheet can be coated with a special polymer composition that protects it from corrosion. Outside, the new sheets are covered with a protective polyethylene film, which is removed after the installation of the roof.

Important! The resistance of the metal to corrosion provides a protective zinc coating. According to Russian GOST standards, its indicator should be at least one hundred and twenty grams per square meter.

When mounting the truss system with your own hands, you need to know in advance what kind of roofing material you plan to cover it with. This is important because each coating requires a certain type of sheathing and rafter step.

When choosing a corrugated board, it is important to take into account the peculiarities of the local climate. For example, in regions with severe snowy winters, you need to choose a coating with a wave of at least 20 millimeters. The angle of inclination of the roof in this case must be at least fifteen degrees, otherwise the snow mass will linger and may deform the corrugated board.

The profile has several markings:

corrugated board C - with a wave height of 8 to 44 mm, used for light roofing or for decorative purposes, for the construction of temporary protective objects;
corrugated board NS - with a wave height of 35 - 44 mm, used for roofing, wall construction;
corrugated board H - wave height up to 114 mm, has additional stiffeners and is used for mounting ceilings between floors and capital roofing.

For the construction of the roof of a private house, the grade of corrugated board HC44 and HC 35 is considered optimal.

How to calculate the consumption of corrugated board

When calculating the consumption of material for building with your own hands, you need to take into account that the sheets are overlapped vertically and horizontally. In this case, the vertical overlap is equal to the wave, and the horizontal one depends on the slope angle. An angle of up to fifteen degrees requires more than twenty centimeters of overlap, up to thirty degrees - fifteen centimeters, more than thirty - ten centimeters.

Important! If the angle of inclination of the roof is less than 12 degrees, during installation, all seams must be treated with a special sealant.

The size of the cornice overhang depends on the brand of corrugated board. For HC8-10, it remains within 5-10 centimeters, HC 35 - H60 can reach 30 centimeters.

To calculate the consumption of corrugated board, you can use special programs that can make calculations for complex geometric shapes of the roof.

How to correctly calculate roofing materials:

Tools and materials for installation

Do-it-yourself installation of corrugated board does not require complex and professional tools. For this purpose you will need:

level, tape measure and rope;
knife, scissors for metal;
marker or chalk;
screwdriver, drill, stapler;
sealant in a tube with a gun.

Important! The metal profile is not resistant to high temperatures, so it is cut and installed without welding.

If there are no scissors for metal at hand, you can cut the corrugated board with a hacksaw or electric jigsaw. To protect the cut edge of the sheet, it must be covered with a special primer.

Self-tapping screws are used to fasten the corrugated board to the crate. They are made of galvanized steel and equipped with a rubber gasket, which will not allow moisture to penetrate through the mounting hole, and protect the wood from decay, and the corrugated metal from corrosion.

Advice! In order not to deform the sheets when they are lifted to the roof, you need to use logs. They are installed from the ground to the roof.

Logs will also help to avoid damage to the material during unloading and transportation.

Insulation and sheathing of corrugated roofing

Vapor barrier of corrugated roofing is carried out with a specialized film. You can use for this purpose and the usual roofing material. The main task of the vapor barrier material is to prevent excess moisture from accumulating under the roof. Sheets of hydro and vapor barrier are overlapped, attaching them with a stapler to the rafters.

Important! The installation of the film must be started from the lower edge of the roof, so that the upper row lies with an overlap on the lower one.

A crate is fixed to the insulating layer. Its density depends on the profile brand. If the profiled sheet is thin (grade C), the crate is made solid. For denser material, the pitch of the crate varies between five to ten centimeters. All wooden roof elements are treated with special protective compounds against fire, decay and insects.

Do-it-yourself installation of a profiled sheet

The laying of the profiled sheet begins from the lower edge of the roof, from the corner. The edges of the material should hang down by about 4-10 centimeters, depending on the brand of corrugated board. The first row is fixed on the crate with self-tapping screws. The fastener is screwed into the bottom of the wave. About five self-tapping screws are consumed per square meter of material.

At the corners of the roof, wind corners are used.

The overlap of the profiled sheets is done so that the waves match. The optimal horizontal overlap is twenty centimeters. If the roof angle is more than fifteen degrees, a sealant must be used. It is a gasket that does not allow snow, rain and wind to clog into the seams. The sealant must be selected depending on the waveform of the profiled sheet.

After mounting the main part of the roof surface, end and ridge strips are attached. Lastly, the corrugated board is attached to the walls and the chimney.

Important! Self-tapping screws on the sheet should not hang out. Properly installed fasteners do not deform the wave and are tightly fixed in the crate

If it is planned to install an organized drain on the roof, the eaves, gutter and plank are installed first. A perforated soffit is installed for roof ventilation.

The ridge on the roof must have two ventilation gaps. The ridge element is fixed with self-tapping screws with a distance of forty centimeters.

What is important to remember when installing a corrugated roof with your own hands

Any work at height requires special care and compliance with safety measures:

you need to use safety ropes and belts;
with a large slope of the roof, it is important to install a fence;
use shoes with soft, non-slip soles;
do not work in wet and rainy weather (profiling becomes slippery);
all work must be carried out with protective gloves, the sharp edge of the metal sheet can injure hands;
raising and lowering the profiled sheet should be carried out only along the logs with the help of three people, preventing the free fall of the material.

This article is useful for those who want to make a roof from corrugated board with their own hands. We will give step by step instructions that will help you make the roof covering yourself without spending extra money on hired workers.

A do-it-yourself corrugated roof should be durable in order to protect the entire structure from precipitation and mechanical stress. The roof of the building is laid out in the form of a multi-layer cake, in which each of the layers performs its important function. And, the finished design has everything you need for mechanical protection, good insulation and full ventilation. For a long-term coating, slate, tiles and metal corrugated board with an anti-corrosion coating are used. In private construction, profile sheets are among the cheapest and most practical roofing material.

In order to carry out roofing work with high quality, the rafter system is installed at a certain angle at the first stage, which holds the entire weight of the roof. Insulating material and a crate are attached to the rafters, on which insulating material is laid, which does not let moisture through from above, and from below allows steam to penetrate. Important in the roofing system is the gutter for drainage and water pipes. Various fasteners and seals are important, which limit the free space under the roof and thus contribute to its insulation.

The profile sheet is used for pitched and broken roofs of houses, outbuildings, terraces and arbors. Such sheet roofing material is produced by cold profiling from high-strength steel, and is covered with special materials that resist corrosion. Thanks to the stiffening ribs, stable resistance of the profile sheet to external loads is ensured. Affordable cost of corrugated board, a wide selection of different colors and ease of installation, allow it to be used in private and industrial construction. In order for the material to fully fulfill its purpose, you should know how to properly cover the roof with corrugated board with your own hands and proceed with installation, adhering to the sequence, according to the instructions and the technological map for laying the roof.

When designing a roof truss system for laying corrugated board, the concept of how to properly cover the roof with corrugated board with your own hands is taken into account, and the light weight of the roofing from the profile sheet is taken into account. For the installation of the roof in this case, there is no need for reinforced supporting structures and the rafters are laid in gable roofs at an angle of 12 degrees - for this, corrugated board of the NS-35, NS-20, S-44 brands is used. It is possible to install the coating at a smaller angle, but in this case, the profile of the brand H-60 or H-75 should be used and vertical and horizontal overlaps should be arranged. Moreover, the horizontal overlap is treated with a sealant, and the vertical overlap must be laid in at least two waves.

In the case when the pitch of the rafters is less than a meter, then the boards for the crate are used with a cross section of at least 30-100 mm, and with an increase in the pitch of the rafters, the thickness of the material for the crate should be significantly increased. An unedged board is used as a material for the crate, and where the valley is attached, the crate is made in a continuous layer. You should also take care of high-quality ventilation of the roof - for this, waterproofing material is laid on the rafters and the contour of the crate is fastened with transverse bars. Thus, an air gap is provided between the waterproofing layer and the finish coating of the roof with profile decking. The air inflow is provided through the overhang of the eaves, and the air outlet together with the vapors is carried out in the region of the ventilation ridge. All wooden elements are carefully treated with wood protection compounds and a fire retardant coating before installation.

Roofing material is always laid in such a way as to counteract the winds that prevail in the area. When the wind blows more often from the right side, then they begin to lay sheets of corrugated board from right to left. And, with intense gusts of wind on the left, the laying of profile sheets begins on the left side.

To cover the roof with corrugated board with your own hands, you will need tools. Their list includes:

tape measure for the necessary measurements;
level for checking the horizontal installation of corrugated sheets;
rope to determine the necessary measurements;
pencil or marker;
electric or cutting shears on a metal profile;
a drill for drilling holes for fastening and a screwdriver for their installation;
hammer for preliminary fastening of sheets on the crate;
stapler for construction work, which is used to install insulating and vapor vent coatings;
construction gun with insulating sealant.

It should be noted that the profiled sheet coated with polymers is unstable to high temperatures, therefore, all cutting and installation of the corrugated board is carried out without the use of welding. In addition to scissors that cut metal, you can use a hacksaw with fine teeth and an electric jigsaw. Cut edges are recommended to be treated with a primer, which protects the metal from corrosion so that rust does not attack the coating starting from the cut point.

To ensure the reliability of laying, profiled roofing sheets are fixed to the crate with self-tapping screws. For greater stability, these fastening elements are made of durable, galvanized steel. All self-tapping screws are equipped with a special gasket made of rubberized elasomer, which is designed to ensure the sealing of the attachment points. This is necessary so that moisture does not penetrate to the details of the crate and does not spoil them.

Sealing is also necessary so that moisture does not get on the edges into the hole in the corrugated board and it does not corrode.

The dimensions of the self-tapping screws are 4.8 × 35, 4.8 × 60, 4.8 × 80 mm, the thickness of the outer layer of protective coating is from 12 microns. And, the composition of the material for the manufacture of self-tapping screws includes stabilizers, which prevent their destruction under the influence of ultraviolet rays.

The head of the self-tapping screw is additionally covered with powder paint with a thickness of 50 microns. And the protective gasket is made of elastomer - it is designed to establish valleys from aluminum sheet. When installing the roof, the color of the fasteners is matched to the color of the corrugated sheets.

When installing the roof, you cannot do without special seals - they are made of polyurethane foam and are placed between the crate and profile sheets. Roof sealant comes in various shapes, but the most effective is the one that matches the shape of the profiled sheet. The sealant is used for better thermal insulation of the room under the roof, extending its service life and to reduce the level of the noise effect of the coating during rain and snow. For the best bonding, an adhesive composition is applied to the insulation on one or both sides. And, for ventilation of the room under the roof, a heater with special recesses is used.

The use of a sealant makes it possible to eliminate small gaps that are formed when laying the sheet to the roof plane in corner places. Voids are dangerous because water can flow into them, or a bird can fly in, and cold air can stagnate there. All these factors affect the quality of the thermal insulation of the house and the condition of the multilayer roof. Therefore, the material for sealing elements is selected durable and resistant to biological factors.

The drainage system plays an important role in protecting the walls and plinth from water, and the foundation from excessive moisture. Unorganized drainage of water from the roof during rain is produced by the flow of moisture from the roof to the ground without gutters and downpipes. This method of removing water from the roof gradually leads to damage to the basement of the house and undermining the foundation.

An organized way to remove water from the roof is the drain, which consists of gutters and downpipes. Modern drainage systems are sold complete with all fasteners and are designed for any area of \u200b\u200bthe house. The most common materials for the drainage system are PVC, galvanized steel with a polymer coating and copper gutters.

The snow retention system becomes an important safety element, and is arranged so that heavy layers of snow in early spring do not fall in heavy blocks, but gradually disappear. Snow retention systems are horizontal strips arranged on the roof in a special way to prevent snow from sticking together and ensure gradual melting and removal of water from the roof. The color of the snow retainers should not differ from the roof covering.

How to cover the roof with corrugated board with your own hands, the video shows how the lower part of the sheet is attached to the crate and 7-8 fasteners are used for installation. Roofing sheets are laid according to the scheme with horizontal and vertical overlap. The vertical overlap must capture at least one wave - basically, the method is used in which at least two waves are laid parallel from above and below. The horizontal overlap from the top row to the lower one directly depends on the angle of the roof slope - the greater the angle of the roof, the less the overlap should be.

On rectangular slopes, the laying of profile sheets begins from any end along the cornice line, whether it is right or left. When the ramp is triangular, the center of the cornice is determined and the sheets are laid symmetrically on the right and left sides. Along the cornice line, the sheets of corrugated board should hang down by 60 mm, if a drainage system is provided. When it is not provided, the overhang increases from 100 to 300 mm.

The first sheet of corrugated board is installed along the end of the roof and the eaves and is attached to the crate in its upper part. It is aligned with the eaves and provides an overhang of 40 mm - this is the distance the roof should protrude beyond the walls of the house. It should be noted that alignment of the roofing material along the edge of the end face is not allowed. Subsequent sheets are attached along the longitudinal side, aligned with the eaves, and only after these operations are screwed to the crate. The process is continued until the entire surface of the slope is covered. Having fixed the required number of sheets, they are aligned along the horizontal line of the eaves and the sheets are connected to each other at the ridge in every second deflection.

The final fastener is made through the crate step along the vertical line. On a horizontal line, sheets are attached to every second deflection. The joints between the sheets are reinforced with hardware, in the upper and lower parts of the corrugated board. Excess material is cut off with electric scissors or a saw - then an end plate is installed in the upper part, with a layer of waterproofing. This work is carried out, as well as laying the roof from the bottom up. At the end of the work, the corrugated board is attached to a self-adhesive sealant with an overlap of 100 mm, and a fastening step of at least 300 mm.

The overhang on the front of the structure must be at least 70 mm. In order for it to have smooth edges, the profiled sheet is attached at the eaves at a distance of 30-40 cm, and subsequent fastenings are arranged in a checkerboard pattern, given that the fastening step is at least a meter. Near the pediment, the fastening step should be in increments of at least 50-60 cm, and the fasteners of the longitudinal overlap are located in the upper part of the profile at a distance of 30-50 cm. .

When the roof is installed at the same time as the drain, it is planned to install a drainage element before the start of roofing. A cornice is attached to the crate, a gutter and a cornice strip are mounted, which directs the flow of water into the drain. At the place where the roof ridge is attached, a continuous crate is provided, but at least two gaps for ventilation should be left.

The waterproofing membrane is laid on the slopes, not reaching the ridge by 10 cm - such a precaution will contribute to the proper ventilation of the space under the roof.

The elements of the roof ridge are fastened in the lower part to the right and left of the slope, using seals, and the end of the ridge is closed with plugs. The elements that make up the ridge are fastened with an overlap of at least 15 cm. The wind bar, which prevents precipitation from falling on the walls of the structure, gives the building an elegant and finished look.

The roof is a reliable protection against atmospheric and mechanical influences.

The corrugated board for roofing is selected because of its strength and active resistance to external influences. It is the outer layer of a complex roof covering, which includes its insulation, ventilation and thermal protection. Sheets of corrugated board are laid sequentially starting from the middle, forming a coating to the right and left of the original sheet. In the process of coating, the sheets are attached to the crate and to each other. Ridge coverings are laid out from the ends of the roof, which are protected from the end with plugs.

A competent sequence of roofing processes, high-quality materials for them and exact compliance with all technological processes become a guarantee of long-term operation and a comfortable stay in a house under a reliable roof.

Covering the roof with corrugated board with your own hands is quite easy and quite affordable for each of us. With careful preparation and a responsible approach to this work, do-it-yourself corrugated roofing will last no less than as a result of the work of professional craftsmen.

Material such as corrugated board has long been known to everyone and is used in construction in a variety of “roles” - fences are installed from it, garages and sheds are built, and roofs of outbuildings, small houses and even large mansions are covered. 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 above, 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 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 cornice 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 using 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

Every mistake made during the roofing will inevitably make itself felt in the future.Samplelemmascan beinsignificant, eliminatethemnotwill belabor, butmeetsvery rarely. More oftenTotalarisemedium and sometimes criticaldamageroofing system.Developersshouldunderstandthat to preventmistakesis lostmuchlesstime than forliquidationthemconsequences. This is not to mention the material side of things. The cost of repairs in some cases may exceed the cost of building a new roof, and this does not take into account possiblerepair damage to internalpremises.

The quality, durability and reliability of a corrugated roof depends on several factors:

accuracy of compliance with recommended technologies, building codes and regulations. Only experienced roofers can make changes to generally accepted technologies and only to increase the stability of the truss system;
experience and responsibility of roofers. It is impossible to take on complex work if even the simplest roofs were not covered in practice General recommendation - inexperienced developers can only cover the roofs of outbuildings and outbuildings with corrugated board. Residential is better not to deal with, these works should be done by professionals. No need to take an example from the heroes of numerous videos that describe the successful first experience of roofing. None of them publish the results of their work in 3–5 years, and for the most part they are very sad;
quality and completeness of roofing materials. A very important factor that requires a careful approach. The fact is that you can spoil the roof from the most expensive metal profile for roofing, or you can make a very high-quality coating from cheap profiled sheets for wall decoration. There are several building secrets on how to save financial costs and at the same time increase the tightness and durability of the roof, we will talk about them a little below.
Important factors - the quality and completeness of roofing materials

The coating technology should take into account the features of the roof: the type of truss system, the purpose of the building, the type of attic space.

Prices for corrugated board

Decking

To make the right decision, you need to have objective information about profiled sheets and the impact of each characteristic on performance properties. All profiled sheets are conditionally divided into three large groups: for vertical structures (wall), universal (for walls and roofs) and roofing. This is a very conditional classification, if there is certain knowledge, then each type of corrugated board can be used for any of the above purposes.

Sheets option	Impact on performance
	The linear parameters of the sheets are regulated by the provisions of GOST 24045-94. For roofing sheets (H) and universal (NS) length for 3–12 m is a multiple of 250 mm. For wall (C) length 2.4–12 m multiple of 300 mm. Width 800–900 mm. The longer the sheet, the less overlap, the tighter the roof. But it must be borne in mind that it is quite difficult to work with very long profiled sheets due to their large windage. In addition, there are risks of sharp bends and fractures, and in these places anti-corrosion coatings are violated and oxidative processes are significantly accelerated. For the roof of the house, it is recommended to buy sheets no more than three meters long. Another advantage of long sheets is the minimization of material loss by reducing the number of overlaps.
	The thickness of sheets for roofing (H) 0.6–1.0 mm, universal use (NS) 0.6–0.8 mm, and wall (C) 0.6–0.7 mm. The physical parameters of bending stability with the same thickness are corrected due to different types of profiles in height and width, the presence of additional elements to increase mechanical strength. Please note that standard sheet metal thicknesses cannot be less than 0.6mm. In fact, modern manufacturers produce profiled sheets with a thickness of 0.45 mm. In order to avoid problems, they write out special technical conditions for their substandard products, approve them in higher organizations and sell non-standard products to consumers quite officially on legal grounds.
	The profile height of roofing sheets is 57–114mm, universal 35–44mm and wall sheets 10–21mm. You can immediately see the difference between the requirements of the standard and the actual technical parameters of profiled sheets. For some manufacturers, the profile height starts from a few millimeters. Why do manufacturers do this? The lower the profile height, the less the metal is deformed. This means that it is possible to degrade the quality of the metal (use cheap alloys), the thickness of galvanizing and paintwork. The small thickness of the metal and the height of the profile should be compensated by the truss system - reduce the step of the rails or make it solid. Experienced builders claim that such a roof will be much cheaper than buying thick and very high-quality roofing profiled sheets in all respects.
	The highest quality sheets have modern aluminosilicon anti-corrosion coatings, electrolytic zinc protection is allowed. The mass of zinc on both sides must be at least 414 g, aluminum zinc must be at least 170 g. with each one square meter. Pay the most attention to this parameter. It is from him that 80% depends on the operating time of the roof.
	The type and thickness of the paintwork is regulated by the provisions of GOST 30246, in some cases the parameters may change after agreement with consumers. The duration of operation depends on the quality of the paintwork by about 15%. We do not recommend choosing matte and rough paints. The fact is that dust accumulates faster on such surfaces, its rainwater does not completely wash it off. As a result, after a few years, mosses begin to grow on the roof, their roots penetrate the thickness of the paint and destroy it. Water enters the microcracks with all the negative consequences.

Unfortunately, theseimportantdata cannot be obtained frommarkingssheets.It indicates only the literal conditional classdestination specification (C, HC, or H), profile height, useful width and thickness of the metal sheet.For instance,C15-800-0.6.Race Informationencrypted as follows- fromshade sheet withprofile height 15mm, usable width 800mm and thicknessmetal 0.6mm.

Roofing and wall corrugated board S-15 (useful width 1120 mm)

Other very important technical parameters haveon the certificates of conformity,Andx alwaysnecessarydemand fromseller.

An experienced roofer can roughly determine the thickness of the sheet by touch, sometimes micrometers are used for this.But this way you can find outbto the totalnno, but freezeindividually the thickness of the metal,cinca coatingI and a coat of paint canonlyin specializedlaboratoriesIX.As we mentioned above, it is these parameters that I provideTmain influence on qualitymaterialroofing, do not be shy to demand documents. If for some reason the sellers do not show the technical passport of the sheets, thenaboutbetter byAndfromkat othersthe shops.

Preparatory activities

The roofing process will be quick and successful if you prepare for it in advance. What should be done for this?

Count the number of sheets. If the roof is an ordinary gable, then the calculation is simple. Find out the length and width of the slopes. The length must be increased by about 30 cm - the value of the overhang of the sheets. Calculate the area of the roof. Divide the resulting value by the effective width and length of the sheet, they are indicated in the material designations. A complex hip roof is divided into separate slopes, the area of \u200b\u200beach is calculated taking into account its geometry. Such roofs require an increased supply of sheets, in most cases it is 10% of the total area. The more complex the roof, the greater the amount of waste.
Important. If the calculation of the roof area is done in meters, then the area of \u200b\u200bthe sheet should be converted into the same units.
Find out the number of metal end (wind), cornice and ridge slats. It must be remembered that each joint should overlap by about 10 cm and buy elements with a margin in length. For a complex roof, you need to have planks for valleys (internal and external).
If there are square or round chimneys on the roof, then you should buy special elements for sealing joints at the junction.

Prices for roofing master flash

Roofing master flash
Count the number of elements and decide on drainage system nomenclature. Some elements must be fixed before the sheets are installed, it is very difficult to do this after the roof is covered, in some cases it will be necessary to dismantle already fixed sheets. Any dismantling has negative consequences, you should remember this and plan your actions several steps ahead.
When arranging a warm roof, you need to buy thermal insulation materials, steam and wind protection.

Of course, it is necessary to prepare the tools and make an audit of their technical condition.

List of required tools and fixtures

For work, you will need measuring tools and fixtures, metal scissors, a screwdriver, a hammer, a marker, a stapler. If you need to cut a large footage of sheets, then many roofers use grinders with metal discs.

Prices for popular models of angle grinders (grinders)

Angle grinders

You should not pay attention to warnings about the appearance of rust at the cut site, as incompetent "specialists" who have never done anything themselves write. Why?

Firstly, the cut is never located in open space, it is always hidden under whole sheets or additional elements of the roof. It is dry and oxidizes very slowly.
Secondly, working with a grinder is much faster and easier than with hand scissors. This is very important, especially if, due to the peculiarities of the roof, many sheets have to be cut.
Thirdly, it is very inconvenient to cut with scissors - hands and handles rest against the metal, it bends, fingers hurt. It is especially difficult to work across or at an angle to the waves of the metal profile.
Fourthly, the overlap of sections is at least 10 cm, even if it starts to rust, it takes several decades to damage such an area. This is much more than a guarantee of coverage.
Fifth, if concerns remain, then the cut point can be covered with paint.

Step-by-step instructionpreparation for installationprofessional sheets

Consider the most difficult option for arranging the roof - warm.

If the width of the rafter legs is insufficient for insulation, then slats must be nailed to the rafters in such a way that not only the insulation layer is placed, but also between it and the wind protection there is at least 4–5 cm for ventilation.

Otherwise, the natural processes of getting rid of excess moisture will be disrupted, the mineral wool will become damp and lose its original heat-saving properties. But this is not all the negative consequences. Wet wool has an extremely negative effect on all nearby wooden structures of the truss system. If the lumber was not treated with antiseptics before the construction of the truss system began, then this mistake must be corrected.

Practical advice. The quality of impregnation is much improved if color is added to the solution. It allows you to detect gaps and eliminate imperfections.

First, you should make a warming cake, it consists of several layers.

Step 1. Nail the vapor barrier on the inside with a stapler, do not forget to overlap about 10 cm. The joints must be glued with double-sided tape. As a vapor barrier, you can use expensive modern materials or an ordinary cheap plastic film. The physical effect is the same, but the savings are tangible. The film has another advantage - large size. There are sleeves with a width of 3 m, if they are cut, it turns out 6 m.Such a wide material speeds up the installation process and minimizes the number of joints. The fewer joints, the more effective the protection of mineral wool from steam.

Step 2 Nail horizontal slats to the rafters. They will hold the mineral wool and provide natural ventilation between the roof and attic wall finishes.

Step 3 Lay mineral wool. You can use both rolled and pressed types. Each has its own styling features, but this does not affect performance.

Step 4 Nail the windscreen. You can find various names for this layer: hydroprotection, hydro-steam protection, membrane protection, etc. But the correct name is wind protection.

She performs two tasks.

The first one does not allow the weathering of warm air from the wool, otherwise the effectiveness of roof insulation decreases sharply. Minvata has many positive characteristics. Unfortunately, there are also three negative ones. The first is the cost, there's nothing to be done about it. The second is permeability. Mineral wool easily passes air and almost does not interfere with natural ventilation. And it carries away warm air into the atmosphere and supplies fresh cold air. The third is a negative reaction to an increase in relative humidity.

The second task of wind protection is to prevent an increase in the moisture content of cotton wool, with an increase in humidity, thermal conductivity increases dramatically. A modern membrane is used that allows steam to pass through, but does not allow the wind to remove warm air, and the condensate to drip back into the mineral wool.

Advice! To make it easier to fasten the boards, it is worth using a template - a piece of rail. The template is placed between two horizontal boards before fixing the top one.

On this, an insulating cake is made, you can nail the gable boards and start laying the roof.

Prices for windproof membranes

Hydro windproof membrane

YingfromTlaying guideprofessional sheets

The main thing here is to correctly lay the first row. In the future, all sheets are aligned to it. We have already said that the presence of markup greatly facilitates the process, do not be too lazy to do it.

Step 1. Attach the gutter fixation brackets. Before this, a metal bar should be installed, and the brackets should be screwed to it.

The tide can be made from sheet steel. Steel strip is bent with hammer blows

Finished plank (low tide)

Fixed metal bar

The slope is about a centimeter per linear meter. More is not recommended. Why? If you make a slope of 2 cm, then on a slope 10 m long, the difference in height will be 20 cm This is very bad - the gutter will be too low from the edge of the sheets, rainwater will flow past it. How to properly prepare the mount? Lay all the parts on a flat area, mark a difference of 10 cm between the first and last (for our example), draw a line at an angle through all the brackets.

Now it remains to carefully bend the metal bar along this line. In order not to confuse the brackets during installation, number the elements.

Step 2 Screw on the cornice strips. These are not only decorative elements, they protect the under-roof space from oblique rain and snow. Remember to overlap about 10 cm.

Important. The minimum dimensions for overlaps should be strictly maintained, due to this, the boards are protected from moisture. If the overlaps are insufficient, then water will enter the gap and wet the board. And it dries under the bar for a very long time, which increases the risk of fungal diseases and rot.

Step 3 Raise the first sheet onto the crate and accurately position it according to the marks.

Practical advice. In order to facilitate the installation of profiled sheets and make it safe, it is recommended to make a special ladder. It is fixed with two legs to the ridge and allows you to safely move along the slope to screw in the screws.

Start the screw in the center so that the sheet can be rotated slightly. Position selected - add a few more screws, but do not forget to leave free space to overlap the waves of the profiled sheet. You can start installation from any side, alignment is done along the eaves. For a guarantee, it is recommended to pull the thread along the line of the future installation of the gutter.

Step 4 Lift the second sheet of corrugated board, put it in place and check the position. If everything is normal, then you can fix both. Self-tapping screws should be screwed in a checkerboard pattern at the rate of 10 pcs. per 1m2.

Important. It is recommended to start the second row with half of the sheet, due to this, four corners will not converge at one point. This rule is mandatory for thick sheets, thin sheets can not be displaced. The decision is made by the master on the spot.
Self-tapping screws are screwed through a wave, if the thickness is about 0.8-1.0 m, then it is possible after two. But such thick profiled sheets are very rarely covered with roofs, they are too expensive. At the ridge and at the eaves, each deflection is fixed.

Practical advice. The work will be much easier if you fix the wind strips immediately after attaching the first row of sheets, and finish the skate as the worker moves along the slope. Moving on already installed profiled sheets is difficult and unsafe. In addition, there is a high probability of their mechanical damage.

Each chimney is finished, the sheets are cut. For sealing joints and decorative design, special metal strips are used.

All additional elements must be purchased simultaneously with the sheets and from the same manufacturer. This ensures that the ridge, wind and eaves strips all have the same appearance.

If everything is done slowly, responsibly and taking into account the recommendations, then the roof of profiled sheets will serve for a long time and reliably.

Video - Installation of corrugated board

The roof is an important element of the building, from the correct installation and high-quality coating, which depends on the safety and durability of the entire structure. The building materials market has a huge selection of products for roofing, among which corrugated board occupies a leading position. The article will talk about how to properly cover the roof with corrugated board with your own hands. It is worth saying that the technology itself is simple, if you know the features of this material and follow some installation rules.

Characteristics of corrugated board

During production, the metal sheet passes through special rolling equipment, which creates a profile of various heights from 8 mm to 75 mm. Due to the wavy, rectangular and trapezoidal profile, additional rigidity is achieved. Thanks to this, the corrugated board easily withstands mechanical damage and high loads.

Galvanized coating makes this material reliable and durable. He is not afraid of chemically aggressive substances, corrosion, precipitation (weather conditions).
Decking is one of the few materials that is easy to install and easy to transport.
Roofing work using profiled sheet is faster than with other materials. This saves not only time but also money.
During the production process, the profiled sheet is coated with a colored polymer, such a coating serves as an additional protective layer and gives an attractive appearance. This allows you to choose this roofing material of any color in accordance with the general appearance of the building.

Roof slope

The laying of profiled sheets depends on the slope of the roof, the minimum slope is at least 12°. At the end of the work, the working joints should be sealed using mastic or sealing tape.

tilt up to 15° - adjacent sheets are mounted with an overlap of 200 mm;
slope up to 30 ° - overlap in this case is 150-200 mm;
slope more than 30° - allowable overlap is 100-150 mm.

Calculation of roofing material

Before calculating the amount of material required, you should measure the roof. Because, at the stages of project implementation, roof slopes can undergo changes.

To do this, you need to measure the slopes diagonally and compare these values, the discrepancy should not exceed 20 mm. It is also necessary to check the plane of the slopes, such a measurement is carried out by a level with a cord, where a deviation of no more than 5 mm is allowed for every 5 m. Otherwise, the sheets will not join.
Ideally, if the length of the sheet corresponds to the length of the slope, about 40 mm more must be added to this parameter for the overhang of the eaves. Next, the amount of corrugated board is calculated, where the length of the cornice is measured and divided by the mounting (including overlap) width of the sheet.
You can also calculate the number of sheets in another way, divide the length of the cornice by the indicator of the useful (overlap) width of the sheet, and round the resulting value up.
If the roof has a complex configuration, then it should be visually divided into geometric shapes. Each form is calculated and the end results are summarized. It is important to take into account when calculating the material and such additional elements as: windows, pipes, ends, skates.

The structure of the roof from corrugated board

The roof structure, in addition to the coating itself, consists of a whole range of structural elements such as heat, hydro, vapor barrier and ventilation. Each of them performs its role, ensuring the correct operation of the entire roof. In order for the roof to serve for a long time and perform its direct function, it is necessary to ensure the correct arrangement of all layers of the pie.

vapor barrier. Its task is to prevent the penetration of moisture into the insulation. Special films are used here, the laying of which is carried out from the inside of the roof with a construction stapler along a horizontal line. The seams formed during installation are glued with adhesive tape or butyl tape.

insulation . The next layer consists of a heater that serves as a compensator for air temperature differences, thus, it prevents the accumulation of moisture and condensate under the roof during the operation of the building. Its thickness is selected depending on the region of residence, it is recommended to use a heater with a thickness of at least 200 mm. Tiled or rolled material is laid in the space between the rafters.

Waterproofing . The final step is the installation of a waterproofing membrane (wind protection). It acts as an additional insulation and, thanks to its waterproof surface, protects the entire structure from condensation, thereby extending the life of the roof.

The membrane is rolled out in a horizontal direction from the eaves to the ridge (from bottom to top). Positioning it in such a way that the joints of the rolls are on the rafters, it must be fixed with an overlap of 150 mm.

The material for hydro and thermal insulation is calculated in the same way as the number of profiled sheets.

sheets on the roof are lifted using a log of one or two boards of the desired length;
it is not recommended to carry out work in windy weather, as there is a chance to miss the sheet and damage it;
during work, you should move along the profiled sheets in soft shoes, stepping only in the deflections between the waves in the places of the crate;
it is possible to avoid the formation of corrosion on the material if all cuts or other damage to the sheet are treated with repair enamel;
when working with corrugated board, it is necessary to use tight protective gloves, since the edges of the sheets are quite sharp;
the debris formed during the installation should be swept away with a brush or washed with soapy water;
the protective film of the material must be removed immediately after installation;

it is forbidden to use a grinder (grinder) in order to avoid the development of a corrosive process.

Required Tools

lever shears or electric shears for cutting sheets;
a screwdriver for fastening the material or a hammer if the fasteners will be made using nails;
construction stapler for fastening films and insulation;
drill and drill No. 5, if the profiled sheet will be attached to a metal structure with a thickness of more than 2.5 mm;
and such auxiliary tools as: marker, knife, level, tape measure, sealant gun.

Material and additional elements for corrugated roofing

Decking. To cover a light roof with a slight slope, you can use profiled sheets C35 or C44 with a sinusoidal or trapezoidal shape.

Their length is from 2 to 6 m, but some manufacturers offer the manufacture of sheets in individual sizes from 0.5 to 12 m and more.

The arrangement of a pitched roof is recommended to be made of corrugated board brand CH35, such a model is better suited for this purpose. The professional sheet of brand H is used for the equipment of load-bearing structures. The height of its profile can be from 57 to 114 mm.

Self-tapping screws. This polymer-coated fastener is matched to the color of the sheet. Thus, it is as invisible as possible in the architectural ensemble. They are chosen depending on the material: wood and metal. Its tip-drill allows you to fasten to a metal structure, the thickness of which does not exceed 2 mm. When buying self-tapping screws, it is necessary to check the presence of a sealing washer (neoprene rubber).

Sealant. It is possible to seal the gaps, for example, between the ridge and the roofing, using a special sealant. It prevents the ingress of debris and moisture into the under-roof space, due to the repetition of all the bends of the profiled sheet.

The ridge is semicircular or rectangular. It performs both a functional (protects the joints between profiled sheets) and a decorative role. The ends of the semicircular ridge are covered with special plugs.

Wind bar. It prevents rain from falling on the walls of the building and gives the roof a finished look.

Depending on the complexity of the roof structure itself, the following additional elements will be needed:

The upper and lower laths of the valleys. The bottom bar prevents rainwater from entering the under-roof space. Upper valley - serves as the final detail, giving a finished look to the roof.
Corner external and internal. With the help of them, sheets are connected at external and internal corners.

How to cover the roof with corrugated board

The crate for laying corrugated board can be solid or stepwise. The smaller the roof slope, the smaller the pitch of the crate, for example, if the slope is less than 15 °, then wooden or metal planks are mounted at a distance of 300-400 mm, with a roof slope of more than 15 ° - the pitch can be 500-600 mm or more.

Mount profile sheets always start from the bottom up, while moisture (rain or formed from melting snow) will not get into the space between the sheets. Such wavy material is laid against the direction of the wind prevailing in the area. If the wind blows more often from the right side, then the installation of the profiled sheet should be laid from left to right, and vice versa. In what sequence it is correct to cover the roof with corrugated board, is shown in the photo.

If the length of the slope allows the use of a single sheet, then laying starts from the end of the roof. It is necessary to align it along the cornice, not forgetting about the additional 40 mm (cornice overhang), it is not allowed to align the corrugated board along the edge of the end.
The first roofing sheet is installed in place and secured with one self-tapping screw approximately in the center. The second one is laid with an overlap on the previous sheet and fastened in the same way. Having fixed the required number of sheets along the entire length of the roof, they are aligned along the horizontal line of the eaves. Further, it is necessary to connect the corrugated board to each other at the ridge in every second wave deflection.

After that, the final fastening is performed:

self-tapping screws are screwed along the vertical line through the crate step;
horizontally - in every second deflection of the profile sheet;
from the end of the roof, it is desirable to strengthen the sheet according to the step of the crate;
the upper edge of the sheet (near the ridge) and the lower edge (on the cornice) - into each wave deflection;
it is recommended to strengthen the joint between the sheets with hardware, both on the wave and on the deflection of the sheet.

Excess material is cut off with electric scissors or an electric saw. Similar manipulations are performed from the ends of the building and on the other side of the slope, if we are talking about a gable roof.
At the next stage, the end plate is installed and fixed into the crest of the wave using the same self-tapping screws. Its laying starts from the bottom towards the ridge of the roof. When increasing the length of the planks, the overlap must be at least 50 mm, the fastening step must be up to 1 m.
At the end, the ridge is fastened. Between it and the profiled sheet, it is recommended to lay a self-adhesive sealant. Ridge strips are built up with an overlap of 100 mm, fastening pitch - at least 300 mm.

Installation of complex roof structures

Complex structures often have internal corners (vales), ventilation or chimney pipes, parapets, and so on are located on the roofs. The resulting joints must be carefully sealed, since through such places moisture can enter the under-roof space.

Endy. At these points, a continuous crate is required on both sides of the groove. The lower (bottom) plank is fastened along the edges with self-tapping screws or nails; when it is extended, an overlap of 200 mm is required. From the upper end of the plank, a bend (flanging) is made at the roof ridge.

The upper bar is installed on top of the profiled sheet, having a rather decorative role, closing the joint between the edges. It is desirable to perform its installation also with the use of sealing materials that protect the mounting joints from possible leaks.

Pipe. The crate around the pipe should be solid, where the junction bar (apron) is attached to the chimney with dowels (200 mm pitch), and to the crate with self-tapping screws.

The installation of the lower apron can be done by pre-drilling a groove on a brick pipe, with the obligatory sealing of this joint. A roof covering with a sealant is mounted on top of it. The upper bar is installed without chasing, after the installation of the coating around the pipe is completed. In the same way, both the longitudinal and transverse junction of the pitched surfaces to the wall are mounted.

Many manufacturers are ready to make additional elements of non-standard shapes, so the difficulties associated with the installation of roofing materials on complex roofs will not arise.

More clearly, how to cover the roof with corrugated board is demonstrated in the video presented.

Cover the roof with corrugated board price of work

installation of corrugated board will cost about 200 rubles per m²;
execution of step lathing - 120 rubles per m²;
installation of a ridge, a wind and cornice strip, an adjoining strip - 100 rubles per linear meter;
bypassing the pipe costs 2000 rubles per element.

The roof made of profiled sheets harmoniously fits into modern architecture. Affordable cost and easy installation makes this material popular among consumers. Roofing from profiled sheets has high strength and has aesthetic qualities.