To protect your home from leaks and collapses, you need to properly install the roofing. In addition, it will provide comfortable accommodation in the cottage.

Almost all experts recommend using corrugated roofing material. It is an environmentally friendly product that is also very durable. If you are in doubt, we advise you to look at photo and video materials on the topic of a roof made of corrugated board with your own hands. We are sure that after learning more about this process, you will immediately start.

So, you decided to carry out the installation of the metal profile with your own hands. The first step is to carefully take the necessary measurements of the roof.

Tip: When taking measurements of the roof - remember that the edge of the profiled sheet must necessarily protrude beyond the edge of the eaves by 50 millimeters.

When planning with your own hands, keep in mind that there are a lot of options. All of them are presented in various catalogs. Therefore, you can choose any material you like.

Tip: Give preference to corrugated sheets that are long enough to cover the entire roof from ridge to eaves. In addition, it will be important to add another 50 millimeters of material. This is necessary to connect the roofing sheets to each other.

If the roof requires large sheets of corrugated board, then divide them into several parts. After that, it will be easier for you to transport the material and lift it to the roof.

We cover the roof with corrugated board with our own hands: technology

Tip: When buying material, ask the seller for instructions. Remember that it is very important for manufacturers of a product that their products are popular. Therefore, if the product is certified, then it must have installation instructions. In addition, a quality product has great reliability and warranty.

Performing ventilation. To do this, put on the waterproofing layer wooden slats... Do not neglect this process, because some moisture gets between the roof and the waterproofing.

Installation of corrugated board. Before you cover the roof with corrugated board with your own hands, study all the points of the instructions.

Installation of corrugated board and its scheme

At the level of the crate, put wood flooring on both sides of the gutter at a distance of 60 centimeters. The overlap for the lower valley boards should be at least 200 millimeters. Attach the bottom strip at the edges with a few nails. Then you just need to fix it along with the entire roof.

Tip: For a flat roof slope, use a sealing compound.

When installing the bottom (lower) plank of the valley, bend its upper ridge over the roof or make a flange.

Attention: the bar must go under the ridge by at least 250 millimeters. It is recommended to lay an additional universal seal between the profile and the bottom valley strip.

The end top board should be installed higher than the lathing. Next, an end plate is attached to the board. As a result of all of the above actions, you will get a wind corner.

We mount the end overhang assembly on the roof

Important: The location of the eaves must be below the waterproofing carpet. This is necessary so that the condensate can roll down the waterproofing, fall on the eaves and drain to the ground.

A do-it-yourself metal profile roof should have a cornice strip under the corrugated board. It is important to provide ventilation. This is necessary to eliminate water vapor. Be sure to install an air-tight seal.

Eaves overhang device option

Cover the drainage gutter on the corrugated board with the following sheet. There is no difference in installation: from left to right or from right to left - as you like. The only thing to note is the overlay of the sheet under the previous one. But you can also slip one profile under another.

The construction of a roof made of corrugated board involves the process of laying sheets from a profile. If you are working with a gable roof, then start the installation from the end of the roof. When installing the roof with a hip, the laying of the corrugated board begins from the center of the hip.

Important: It is best to use a cord to align the sheets, which must be pulled along the eaves. Do not align to the end of the ramp.

Considering the thickness of the corrugated board, fix the middle part in a checkerboard pattern. In other words, it is necessary to tighten the self-tapping screws, 5 pieces per square meter.

Multi-row laying of corrugated board and its methods:

1. Laying vertically. The first sheet is laid on the bottom row and temporarily attached. The first sheet in the second row is stacked similarly. Next, the second sheet is laid on the first row and the second sheet on the second row. Thus, a whole block is obtained. After that, you need to create and attach the next block. This method is ideal for roofs with gutters.
2. The second option - the block includes 3 sheets. Lay two sheets in the first row, and fasten them together. Then attach one sheet from the second row to them. The final blocking of the block will occur after alignment with the cornice. Next, a similar block of 3 sheets is attached. This method is suitable for sheets without a gutter.

In no case, do not forget that the profile sheets are very light. They must not be exposed to high loads and must not be walked on during assembly work.

Installing the end and ridge strip

The length of the end strip should be about 2 meters. When building up 50-100 millimeters, overlap the planks on top of each other. According to experts, it is best to lay the end strips from the side of the roof overhang, gradually directing them towards the ridge.

We mount the ridge knot

The overlap when laying the ridge strips should be more than 100 millimeters. Use self-tapping screws for fasteners. In this case, the step length should reach up to 300 millimeters.

Which corrugated board is better for the roof ").

On modern market a huge range of construction and finishing materials, including for the arrangement of the roof. Primitive finishes such as slate and bitumen are gradually becoming history, being replaced by more presentable and quality materials, fully meeting the requirements of modern housing construction.

Profiled sheeting is one of such high-quality and aesthetic materials. You can do it yourself with a roof covering with corrugated board. Here's a guide to arrangement of flat roofs. Such roof structures are very often erected on various outbuildings such as sheds and gazebos, and sometimes over residential buildings.

An inexperienced person may decide that corrugated board is not the best way for arranging a roof and can only be used for sheathing gates and fences. However, this opinion is absolutely wrong. Modern profiled sheets have excellent protective properties, excellent appearance and are available in the widest range of colors.

Add to all the benefits the ease of installation and fastening of the sheets, as well as the affordable cost, and you get practically perfect material for the roof of the roof.

It is for the ease of installation that private and thrifty developers are so fond of profiled metal sheets. However, you do not need to think that it is very easy to cover the roof with the material in question with your own hands. Here, as in any other work, there is a series important nuances which must be taken into account, especially when working with flat roof structures.

The nuances of using corrugated board when working with a flat roof

Flat roofs are mainly used for covering different kinds outbuildings. In the process of installing a profiled sheet on such a roof, a number of features must be taken into account, first of all - the low slope of the roof slope.

To cover a flat roof, a solid sheet should be used, without joints. Any joints increase the risk of moisture penetrating the space under the roof. If it is not possible to equip the roof with one sheet, the joints must be sealed with special silicone means.

It is because of the features mentioned above that corrugated board is very rarely used for roofing flat roofs. For such designs, they are better suited roll materials, however, with a strong desire, you can successfully lay the corrugated board.

Technology features

In accordance with the technology, profiled sheets should be laid at a certain angle necessary to obtain the highest quality and reliable coating. If you have at least once had to install a roof covering with your own hands, you already know that the angle of attachment finishing material determined by the angle of inclination of the roof slope.

In the case of a flat roof, certain difficulties may arise in this moment. Profiled sheets are stacked at a ten-degree angle. At a lower slope, atmospheric moisture will not be able to drain normally from the roof and will penetrate under the roofing material, especially if the sheets are overlapped. Solve the problem of creating the desired slope in the case of flat roof in most cases, the crate helps.

In addition to the slope of the slope, it is imperative to take into account its length. As a rule, profiled sheets have a standard length of 12 m. This sheet size is very convenient - in most cases, the entire roof slope can be covered with one sheet, avoiding seams and any kind of joints.

If necessary, the profiled sheet is easily cut using ordinary metal scissors. It is strongly not recommended to use a grinder to cut roofing sheets. During the operation of this tool, a large number of heat, under the influence of which the protective coating of the corrugated board is destroyed, due to which the operational properties of the material deteriorate markedly.

Roofing guide

With a profiled sheet device on flat roof a barn, a gazebo and any other building you can handle with your own hands. The technology for performing the work remains almost the same for most cases.

First stage - tools

Prepare the following accessories for work:

• electric drill. If possible, use a drill at a low chuck speed. This will allow you to set the angle of entry of each fastener into the roofing surface as accurately as possible;
• jigsaw. Instead, you can use metal scissors or a hacksaw. Cutting sheets of roofing with a grinder is categorically not recommended. As a last resort, when no other tools are available, cut with a grinder using special attachment for processing corrugated board;
• brushes;
• boards for lathing;
• hammer.

The second stage is the crate

Start assembling the battens. For arranging this element, it is most convenient to use boards. Lay the boards on the rafters and fasten them with galvanized self-tapping screws or nails every 50-100 cm.

Select the specific step of the crate in accordance with the characteristics of the profiled sheet used. For example, for the installation of C35 profiled sheets optimal step the crate will have a value of 0.5 m, and for sheets of the C44 brand, the step of fastening the boards needs to be increased to 70-75 cm.

If the length of the roof slope exceeds the length of the profiled sheet, place additional boards in the place of future sheet joints.

Treat the finished crate with an antiseptic. You can perform this processing before you start fixing the boards - as you like.

The third stage is moisture insulation

The profiled sheets are based on metal. On metal surfaces condensation will inevitably settle. Moisture sooner or later leads to irreversible damage to any building materials, so it must be neutralized. There are 2 main options for neutralizing the harmful effects of moisture, namely:

After completing the moisture-proofing work, you can begin to prepare directly for the installation of the roof. For more convenient lifting of sheets on the roof, you can make a simple device in the form of two long slats, laid from the ground to the roof at a slight angle.

It is more convenient if you have three assistants, so that two feed the sheets from below, and two receive the material at the top and perform its editing.

Fourth stage - stacking sheets

First of all, select suitable option installation of profiled sheets. In total, there are two main mounting options, namely:

The corrugated board can be fixed exclusively with the help of special galvanized self-tapping screws with seals. The seal must be made of neoprene rubber. Such material tolerates contact with moisture and temperature extremes well. The optimum diameter of the self-tapping screw for fixing the profiled sheet is 4.8 mm.

It is impossible to use nails to fix the corrugated board. With constant gusts of wind, the nails simply cannot properly hold the sheets, as a result of which they will be torn off the crate.

Self-tapping screws are screwed into the hollows of the sheets, where the material is adjacent to the crate. On square meter coating is consumed about 6-8 screws. Try to place the fasteners at the same distance. Sheets must be attached to the extreme purlins in all waves, because these places will be subject to the strongest wind loads. To the rest of the lathing elements, the sheets can be fixed through one wave.

It is better to prepare the mounting holes in the sheets in advance. When working with a thin profiled sheet, holes can be made using a self-tapping screw, but if the sheets are quite thick, make holes with a drill.

Self-tapping screws with multi-colored caps are currently on sale. You can easily match the color of your roofing profiled sheets without any problems.

Lay adjacent sheets of covering with an overlap in 1 wave.

Cover the entire main surface with corrugated board, and then install additional accessories if necessary.

Thus, there is nothing difficult in self-covering the roof with corrugated board. It is enough just to follow the instructions and observe the precautions that are relevant for any roofing work.

Good luck!

Video - Cover the roof with corrugated board with your own hands

Reading time ≈ 4 minutes

The construction of a roof from corrugated board is considered the most affordable and simple method arrangement of roofs in a private house. This construction material lightweight, resistant to corrosion and any man can handle its installation without hiring hired workers for construction. Our tips will help you make a roof from a profiled sheet with your own hands and save money.

Preparing for installation

Prepare the following materials and tools before starting work:

• tape measure, level and knife;
• drill, screwdriver, hammer;
• construction stapler, scissors for metal;
• roofing screws measuring 4.8 × 35, 4.8 × 60 or 4.8 × 80 m;
• wooden blocks for lathing;
• profiled sheets.

Think about how you will be served sheets on the roof. To do this, you can use logs, winches or blocks. To avoid accidents, use special belts and belts and work in non-slip shoes.

In order for a roof made of corrugated board with your own hands to turn out to be durable and reliable, when choosing a brand of material, take into account the peculiarities of the climate of your area. Perfect option for the roofs of private houses in all areas - professional flooring of the НС44 and НС35 brands.

Manufacturing of lathing and vapor barrier

1. Manufacturing of lathing. For the lathing, take wooden blocks, they are lighter than metal ones and are more convenient to mount. You can take boards made of spruce, pine, oak or alder. First, treat them with an antiseptic so that there is no fungus on the roof and a refractory compound. At this stage of the construction of a roof made of corrugated board, it is advisable to mount special membranes required for vapor barrier. The lathing is mounted on rafter system.

Consider the following points when installing the battens:

• first reinforce the first plank along the eaves, which should be thicker than the rest. Mount the board on special slats pre-nailed to the rafter legs. The slats run perpendicularly and they are needed to provide the ventilation gap required for the profiled sheet. Then continue fixing the rest of the boards. It is convenient to start fastening from the bottom, gradually rising to the top;
• assemble the lathing structure using nails or self-tapping screws. Dowel-nails are used to fasten the boards to concrete;
• select the step between the bars depending on the angle of the roof slope and the size of the profile. Usually the step is 50-100 cm.

2. Vapor barrier. The vapor barrier prevents moisture from accumulating under the roof. This is a special film with membranes that release steam and prevent moisture from leaking out. Lay the film before starting the installation of the roofing from the corrugated board. Lay the vapor barrier sheets with an overlap, they are attached with special screws.

Features of laying the profiled sheet on the roof

Roofs for houses are pitched and gable. Shed roof from corrugated board will require less material and its design is much simpler. Begin fastening the sheets to any roof from the bottom of the roof slope.

Highlights of work:

• all sheets are attached to a wooden crate with roofing screws. Laying starts from the edge. If something is not clear, we recommend that you look at the photo and video of the installation of the roof, which you will find in our article;
• screw the self-tapping screws strictly perpendicular to the plane of the roof, distortions are unacceptable. Self-tapping screws are mounted in the bottom of the sheet wave. Each sheet will require 7-8 self-tapping screws, the installation of profiled sheets is overlapped. The size of the overlap of adjoining sheets must be at least one wave;
• first, it is advisable to fix the profiled sheets with one self-tapping screw so that they can be corrected if it does not work out exactly. If the row is even, then securely fasten all the sheets along the crest of the wave. The sides are sewn up with a special sheet after the entire row has been laid.

Decking is a frequently used roofing material that has a number of advantages. Experienced craftsmen know all the intricacies of working with him, however, beginners in this area may face a number of problems. Laying corrugated board on the roof, the instructions of which are given below - the process is quite simple, but before starting work it is important to thoroughly study it, otherwise the roof may be performed incorrectly, over time it will begin to leak and will not last for the stated period.

Laying corrugated board on the roof - instructions

Profiled sheeting, also called a metal profile or a profiled sheet, is a fairly thin sheet of steel with an even corrugation geometric shape and coated with polymer protective equipment... It is produced by the cold method on special profile bending machines. The material is intended for use in construction various structures... Depending on the type, it can be used for wall decoration, formwork when working with a foundation, building fences, as well as for decorating roofs.

The professional sheet differs from other roofing materials in a number of advantages. It is strong, reliable, durable, does not burn, has a rich colors and can be matched to any style of the house. Roofs of any shape can be covered with this material - single-pitched, having two or more slopes, as well as having an unusual shape. Its installation is quite simple, and the material is convenient and practical to care for.

Decking can have different sizes... The length of one sheet varies from 2 m to 12 m, and the thickness is in the range of 0.35-1.2 mm. But, having agreed with the manufacturer, you can order sheets according to individual requirements.

Prices for corrugated board

Requirements for work

For arranging roofs, it is recommended to buy corrugated board that has a complex polymer coating... It consists of several layers, where the lowest one is represented by galvanized and chrome, then there is a primer layer, and only after that a paint-and-lacquer polymer composition is applied. Due to such a coating, the material does not rust, but it is important to remember that when cutting the profiled sheet, this layer is damaged, therefore it is necessary to process the cut points protective compounds otherwise the roof will quickly rust. Also, for this reason, it is necessary to move along the profiled sheet only in soft shoes and very carefully so as not to spoil the coating.

For the roof, corrugated board can be used. different brands, but usually purchased universal or wall-mounted with C, H or HC markings. At the same time, when buying material, it is important to pay attention to the shape of the corrugation (a wave or trapezoid is best suited for arranging a roof), its height (21-35 mm) and the thickness of the steel sheet itself.

The choice of the type of coverage is strongly influenced by the angle of inclination. future roof, as well as the type and characteristics of the battens to be produced. And the length of the profiled sheet should ideally be such as to close the slope from the ridge to the eaves at once - the tightness of the roof will be higher.

As a base for corrugated board, it can be made wooden lathing, while the tree must be treated with an antiseptic. You can also use a metal crate made of steel purlins, but in this case, the height of the corrugated part of the metal profile should not be less than 4 cm.

Be sure to attend to the laying of layers of hydro and sound insulation. The latter is needed in any case, especially if a residential building is covered with corrugated board, since the metal coating makes a lot of noise during the rain. Waterproofing is required so that even with modest installation flaws or heavy rain, water does not get under the material. The vapor barrier layer will reduce the effect of condensate that forms in houses and accumulates under the roof on the corrugated board. You also need to think about the organization of ventilation of the under-roof space, otherwise the ingressing moisture will not be able to be removed from under the roof.

What is required?

To mount the corrugated board on the roof, you will need to rent or purchase a number of tools, without some of which you will most likely simply not be able to complete the work. So, you need a screwdriver, metal scissors, a hacksaw or jigsaw, a hammer, building level, measuring accessories.

From the materials it is necessary to buy the corrugated board itself, as well as additional elements and fastening material. Do not forget about waterproofing, warming layers, material for the construction of the lathing, etc. A sealant is also purchased, which will make the joints impermeable to water.

The fastening of the corrugated board is carried out using special self-tapping screws with rubber seals... Their sizes are selected depending on the height of the corrugated part of the sheet, and the number - based on the roof area to be sewn up. The length of the screw D is calculated by the following formula: D = P1 + B + P2, where P1 is the thread entering the crate (about 2.5-3 cm), B is the height of the corrugated part, P2 is the thickness of the washer and seal (about 4 mm). The number of self-tapping screws per 1 m 2 is about 5-7 pcs.

Table. Complements for roofing from corrugated board.

Add name	For what and how it is used
	Required for installation along the eaves of the roof, has a protective function. Individual elements they are always mounted with an overlap of about 10 cm. Fasteners are made to the outer sheathing board.
	Its function is to design and protect the edges of the profiled sheet. Fastened with self-tapping screws before installing corrugated sheets along the end of the roof.
	Covers the junction of two sheets in the ridge area. Individual planks overlap each other. The strip protects the roof from moisture and debris entering it through the ridge gap.
	Connects inner corner between two roof slopes with different slopes.
	The bar protects the joints from debris and water between them. For example, this category includes abutment strips that can be used to form a chimney.
	They play the role of retaining snow on the roof, do not allow it to roll off it arbitrarily. Installation is carried out at a distance of 30-40 cm from the edge of the roof. If the slope has a length of more than 8 m, then another row of snow holders must be installed.

Prices for popular models of screwdrivers

Screwdrivers

Laying corrugated board: instruction

Step 1. Laying corrugated board involves a number of preparatory work that will create correct pie roofs and a quality base for the material. Waterproofing material mounted on previously installed rafters, starting from the bottom of the roof slope along its eaves. Laying is carried out with a slight sagging, which will avoid rupture of the coating in the event of sharp changes temperatures. Individual strips of material should always overlap each other, while the edges below the laid strips should be hidden under the edges of the above ones. The overlap is at least 10 cm. The joints are glued with adhesive tape. Over waterproofing film lathing boards are mounted with the selected step.

Table. The step of the lathing depending on the type of material and the angle of inclination of the slope.

Corrugated board brand	Installation recommendations
C10 0.5 mm thick	Laying is done with an overlap in 2 waves, if the angle of inclination is less than 15 degrees, or in 1 wave, if the slope is more than 15 degrees. In the first case, the crate is solid, in the second - with a step of 30 cm
C21 0.5-0.7 mm thick	An overlap of 1 corrugation, with a slope angle of less than 15 degrees, the sheathing step is 30 cm or less, if the angle is more than 15, then the step can reach 65 cm.
С44 with a thickness of 0.7-0.9 mm	The overlap of sheets is performed in one corrugation, and the pitch of the lathing will be 50 cm at an angle of inclination of up to 15 degrees, and more than 15 - 100 cm.
Н60 with a thickness of 0.7-0.9 mm	This type of material is used for industrial buildings, with a slope angle of more than 8 degrees, the sheathing step will be 3 m.
Н75 with a thickness of 0.7-0.9 mm	It is also recommended for use on industrial buildings with a lathing step of up to 4 m at an angle of inclination of more than 8 degrees.

Step 2. The first sheet of corrugated board rises to the roof with the help of a rope and other people, and the master on the roof accepts it.

Step 3. A rail is laid on the skate across it, which will be called the control one. When laying sheets of material from their edge to it, there should be 6 cm of free space.

Step 4. The first sheet of corrugated board is aligned in accordance with the end and eaves of the roof. If the corresponding strips are installed there, then you need to focus on their edges. The removal of the sheet should be approximately 30 cm.

Step 5. If the length of the sheet is enough to close the roof slope from the ridge to the eaves, then it is simply fixed in the selected place using roofing screws equipped with seals. If the dimensions of the sheet are small, then the laying will be done in stages: the first sheet is fixed on a self-tapping screw, the second and third are laid, also fixed. But, until the sheets are precisely aligned, the fixation should be light. Only after the final alignment is the material securely attached to the crate with self-tapping screws.

Step 6. In this case, the sheet is enough to cover the roof slope completely in width. Therefore, fixing with self-tapping screws is done immediately - they are screwed along the perimeter of the material into each corrugation, along the end - in increments of 50 cm. In the middle of the sheet, fixation is made into every second corrugation. In this case, the self-tapping screws are screwed into the part of the sheet lying on the crate, and not into the protruding one.

Step 7. The second sheet of corrugated board rises to the roof and fits in the same way as the first, but with an overlap on the previous one in 1 wave. Fixation is done in the same way.

On a note! It is best to screw the screws in a checkerboard pattern.

Step 8. Similarly, one roof slope is sewn up completely.

Step 9. In the same way, the corrugated board is laid on the second side of the roof.

Step 10. The ridge strip is being installed. It is installed in its intended place - on the joint of two sheets in the area of ​​the ridge - and is fixed with self-tapping screws with a step of 20-30 cm. The second ridge element is laid with an overlap on the first one (the overlap should be equal to 10 cm). Fastening is made to the upper roof ridge.

Advice! Between the ridge element and roofing sheets experts advise to lay special seals so that the roof is as tight as possible. But you should not forget about the ventilation gap.

Chimney bypass

Step 1. Around emerging from the roof chimney mounted a metal sheet- a kind of abutment bar.

Step 2. The gap between the sheet and the pipe wall is filled with a sealant.

Step 3. The corrugated sheet is cut to fit the perimeter of the chimney. Places of cuts must be treated with protective equipment.

Step 4. The cut sheet is attached in place.

Step 5. The sheet is fixed with roofing screws according to the same principle as ordinary sheets.

Step 6. A box is created from the profiled sheet, which is suitable in shape to the chimney.

Step 7. The box is put on the pipe from above.

Step 8. The box is fixed on the pipe using roofing screws.

Step 9. The joint between the box and the laid profiled sheets is closed with a metal plate, fixed with roofing screws.

Step 10. A small roof for the chimney is made from trimming corrugated board and fittings.

Snow guards are necessary in order to prevent avalanche snow from the roof in winter period... They are mounted parallel to the eaves of the roof at a distance of 40-50 cm from its edge. Fastening is done using roofing screws. Snow holders can be mounted in one row, or in two, staggered.

Snow guard prices

Snow holder

Video - Installation of roofing from corrugated board

As you can see, the installation of corrugated board is really simple and consists in the strict fulfillment of the basic requirements for working with the material. Every master can now make a roof on his own.

The metal profiled sheet is quite popular among professional builders both architects and individual developers. Profiled sheeting, obtained from thin sheet steel by cold rolling, has a high bearing capacity and easily withstands even very large wind and snow loads... At correct installation, roof overlap with profiled sheet with anti-corrosion coating very reliable - such a roof will last 20-25 years without any operating costs.

An important advantage of corrugated board is the ability to produce sheets of great length. With the length of the roof slope up to 12 m, the roof overlap with corrugated board can be performed in one row without transverse joints. And any additional joint increases the likelihood of a violation of the tightness of the roofing.

Due to its low weight, roofing with corrugated board is often used when replacing old, worn-out roofing, since it is not necessary to strengthen the existing truss system under the corrugated sheet. Among other things, thanks to modern color decorative coatings, the profiled metal sheet looks very attractive.

The small weight of the corrugated sheet also allows you to overlap the roof with corrugated board with your own hands without the involvement of builders. In addition, information on how to properly cover the roof with a profiled sheet is publicly available, and the process itself does not require many years of experience, special education and skills.

Below we will focus on the main features of the installation of this roofing material, which you need to get acquainted with before covering the roof with corrugated board.

Which professional sheet to choose for roofing?

Before dwelling on how to properly cover the roof with corrugated board, we will briefly dwell on the rules for choosing a profiled sheet for the roof. Today, widespread as wall sheeting of grade C, intended for the manufacture of sandwich panels, cladding of building facades and the construction of various fences, and a special profiled sheet for the installation of roofing.

Many are interested in whether it is possible to cover the roof with C grade corrugated board, which is several times cheaper than the bearing corrugated sheet. On the whole, this question can be answered positively. However, in this case, the height of the trapezoid or profile wave must be at least 20 mm. For steep roofs of small buildings, you can even use C10 corrugated board, but you need to make a continuous crate under it.

However, the use of wall sheeting, although economical, is not reliable enough. Since you are interested in exactly how to properly cover the roof with a profiled sheet, and not the opportunity to save on the reliability and quality of the roof, I strongly recommend using a roofing profiled sheet. Especially if the building is being built in a region with big amount precipitation and high snow cover.

It differs from the wall one in that the width of the profile flange is greater than the width of its ridge. This makes it easier for water and snow to drain off the roof covering. In addition, roofing sheeting often has additional stiffening ribs and a capillary groove along the edge of the sheet.

These design features increase the longitudinal rigidity of the profile and facilitate the removal of moisture trapped between the roofing sheets.

Having chosen a profiled sheet, you can start covering the roof with corrugated board.

How to start covering the roof with corrugated board?

To prevent accidental damage to the material, the transportation and lifting of the corrugated board to the roof must be carried out with maximum precautions. Indeed, in case of deformation, it is almost impossible to return the original geometry to the profiled sheet. In addition, even the smallest damage protective coating can lead to premature corrosion of the corrugated board and a decrease in the service life of the roofing.

If you purchased a professional sheet in advance, then remember that you can store it in its original packaging for no more than a month. At the same time, it should lie horizontally on pads, at least 100 mm high. If you intend to store the corrugated board for more than a month, between separate sheets wooden slats are laid.

Before covering the roof with a profiled sheet, with the help of counter-lattice bars, you need to make ventilation gaps under the surface of the roofing. Proper ventilation is what prevents the accumulation of condensate on the inner surface roofing. The size of the ventilation gap should be 40-50 mm. To protect the roof space from condensation drops, it is laid on the rafters waterproofing membrane, on top of which the counter grill is mounted.

The roof, prepared for covering with corrugated board: the lathing was made, the pediment and cornice planks

Strictly following the installation technology, two or three people can cover the roof with corrugated board with their own hands without special skills.

We begin the installation by installing a device for lifting the corrugated board to the roof. From the ground to the roof, we lift the profiled sheet along wooden logs, and only one sheet at a time.

Order further work with corrugated board largely depends on the angle of inclination of the roof. Although, in theory, the profiled sheet can be used even for roofs with slopes of 2-3 °, it is better that the roof slope exceeds 10-12 °. In this case, we cover the roof with corrugated board with an overlap of only one wave. If the installation of the profiled sheet on the roof slope is carried out in several rows, the overlap between the rows should be from 100 to 200 mm, also depending on the angle of inclination of the roof.

Adjustment of corrugated sheets before roof overlap

Before covering the roof of the house with corrugated board, you need to adjust the covering sheets. For cutting sheets of corrugated board, it is ideal to use electric shears for metal, which are neat, even, without chipping and extra effort allow you to make the desired cut. However, since we cover the roof with corrugated board with our own hands, therefore, there is no specialized tool, you can use a jigsaw, and hand hacksaw with fine teeth... To prevent edge corrosion, the edges of the sections must be treated with anti-corrosion mastic.

It is strictly forbidden to use a high-speed power tool with abrasive wheels for cutting corrugated board. Incandescent abrasive particles can seriously damage the protective polymer coating of the profiled sheet.

How to properly cover the roof with corrugated board - cutting a profiled sheet

In order to cover the roof with corrugated board with your own hands, you must also follow several simple rules that will avoid injuries while performing work:

• you need to work in soft shoes that will not damage the polymer coating and, at the same time, will not slip on its surface;
• it is not recommended to work in windy weather due to the high windage of the corrugated sheets;
• it is also impossible to work in the rain, since the wet surface of the profiled sheet is very slippery and it is very difficult to stay on it even with a slight slope of the roof;
• several sheets must not be lifted onto the roof at the same time, since if one of them slides off, you can get serious injury.

After the layout and adjustment of the profiled sheet, they begin to fasten it. Special attention should be paid to how to properly and reliably fix the corrugated board.

How to properly cover the roof with corrugated board?

It is impossible to fasten the profiled sheet with nails, since such fasteners will gradually weaken under the influence of wind loads. Subsequently, this will lead to deformation of the profiled sheet and a violation of the tightness of the roof. Therefore, before covering the roof with a profiled sheet, you need to purchase special roofing screws.

Roofing screws usually have a hex head with a press washer. The tip in the form of a drill makes it possible to fasten the corrugated board with roofing screws not only to a wooden, but also to a metal crate, and without preliminary drilling of holes.

The hexagonal head allows you to firmly and reliably press the profiled sheet to the crate using a screwdriver or an electric drill with an adjustable rotation speed. Of particular importance are the sealing gaskets of the roofing screws made of special neoprene rubber.

In order to tightly press the corrugated board to the crate, the fastening is performed through the lower wave of the profile. But it is in this way that all the water from rain and melting snow flows from the roofing. Therefore, when we cover the roof with a profiled sheet, it is very important to ensure the tightness of the attachment points for the profiled sheet. The neoprene rubber of the protective strip self-vulcanizes when the roofing screw is tightened, completely eliminating the possibility of moisture penetration under the roof. Self-tapping screws are screwed through the upper wave only when the ridge is installed.

Horizontally, the corrugated board is attached to the crate through one wave. Vertically, the self-tapping screws are installed through one board of the crate in a checkerboard pattern. On the gable overhang, fastening is carried out to each batten board. On the eaves overhang, self-tapping screws are screwed into each wave of the profile.

In each wave, the corrugated board is also attached in the overlap areas between adjacent rows of the coating. It is recommended to additionally fasten the covering sheets in the places of longitudinal overlaps with special rivets.

When screwing in self-tapping screws or drilling in roofing holes, a fine metal shavings... Before the final tightening of the self-tapping screws, it must be removed in order to avoid damage to the polymer protective coating. In addition, these shavings can interfere with the snug fit of the neoprene pad.