Roofing of a pie on a roof from a professional sheet according to snip. Roofing pie under corrugated boarding Roofing pie under corrugated boarding

Today, roofing with a profiled sheet is probably the most popular and affordable solution in our country for covering both residential buildings and non-residential buildings.

The design of the roofing from corrugated board must be carried out in accordance with SNiP roofing - corrugated board, in which the height of the waves is from 20 mm and above. On the this moment the modern market gives you the opportunity to choose roofing corrugated board - the photo of which is presented below, both galvanized and polymer-coated.

This instruction for the installation of corrugated roofing reveals all the necessary information in order to properly install the roof from corrugated board. Professionals of the company from which you will buy roofing corrugated board will be able to calculate the roofing from corrugated board - you can safely provide installation to qualified specialists from the same company or do the work yourself.

The technology of installing corrugated roofing is actually simple and entertaining. So do-it-yourself corrugated roofing will give you pleasure if you have the necessary tools and the desire to tinker a little.

Transportation of corrugated roofing

For proper loading, profiled sheets must be laid on a flat and solid base with a margin of length for bundles of profiled sheets so that the edges do not bend.

During transportation, it is required to protect the material from mechanical damage and movement along the vehicle.

Avoid sudden braking and acceleration of the car.

Loading and unloading of products

Loading and unloading of packs with corrugated board must be carried out using lifting equipment (crane) with soft slings, and if the length of the packs exceeds the length of 5 meters, use traverses.

During unloading by hand, it is best to attract a sufficient number of workers (based on: 1.5-2 m of sheet length per person), but there should be at least 2 people.

They lift and carry sheets of corrugated board very carefully and only in an upright position in order to prevent strong bends in the material.

It is strictly forbidden to throw sheets of roofing material, and then try to drag them.

In order to start roofing work, the corrugated board must be moved to the roof.

You can lift the sheets onto the roof if you use logs installed from the edge of the roof to the ground.

Lifting up must be done one sheet at a time and slowly.

Also, do not risk starting the lifting of the sheets in strong winds, because there is a high probability of damage to the profiled sheets during this process.

control measurements.

When installing rafters, it is advisable to perform control measurements of the roof slopes, because. during construction works there is always the possibility of deviation from the approved project.

Verify:

Determine the squareness of the roof slopes by measuring the diagonal of the slopes (the difference in the diagonals should be within 20 mm, but no more).

The flatness of the roof slopes (this is a cord, level), as well as the maximum deviation of 5 m ± 5 mm.

IMPORTANT! If you notice a deviation from flatness, then because of this, misalignment of the sheets is possible.

Installation of corrugated roofing, compliance with safety regulations

While moving along the sheets (during installation), it is necessary to wear soft shoes, step only into the deflection of the corrugated board wave in those places where the crate is located. When laying roofing corrugated board - fastening is performed by screwing them into the recession of the wave.

To prevent corrosion, such places as chips, cuts, damage to the protective coating must be treated with a special enamel for polymer coatings from AkzoNobel.

The edges of the sheets can be sharp, so always use gloves when doing the job.

The resulting chips, when screwing in the screws, are carefully removed with a brush, as they are prone to rust and can ruin the roof covering.

When performing any work, remember the need to comply with safety and labor protection rules.

Products with a protective film must not be used after installation. The film must be removed during installation to avoid its "sintering" with the polymer coating.

If contaminated areas of the coating have formed, then try to clean them with a soft brush and wash with a mild soapy solution.

It is strictly forbidden to use angle grinders with abrasive wheels (in other words, “grinders”) because not only the polymer coating of the corrugated board is burned, but also the zinc itself, after which the metal corrosion process is initiated.

Metal cutting tool

A special nozzle for a drill with interchangeable knives included. They will give a conventional drill the function of slitting electric shears for cutting steel to approximately 0.8 mm.

Cutting shears with a set of replaceable knives. They will be needed for manual cutting of steel with a thickness of up to 0.6 mm.

Lever scissors. Required for manual cutting of metal sheets up to 0.6 mm in any direction.

Cutting electric shears. Cutting steel sheet up to 1.2 mm will accelerate several times.

Gutter system tool

Pincers "Corrugation". They are needed in order to make corrugated folds at the ends of the drainpipes, ensuring their docking.

Strip bender It is designed for high-precision bending of gutter holders of gutter systems up to 4 mm.

Sealant gun. They are used for uniform application of a layer of sealant, performing a roofing device from corrugated board, as well as a drainage system.

Screwdriver attachment. It is used for screwing self-tapping screws 4.8 and 5.5 mm in size (with a hexagonal head) into wooden roofing units from corrugated board.

Staples type No. 10 for a staple gun and the gun itself. Required for fixing hydro and vapor barrier.

Riveting pliers. They connect products with rivets.

Template for the crate. For accurate marking of the batten pitch during installation.

Knife for thermal insulation. It is necessary for the implementation of high-quality and accurate cutting thermal insulation boards.

Another roofing tool that can be auxiliary to the main one: a hammer, a drill, a tape measure, a set of drills, a long rail, a marker, a cord.

Roofing cake for corrugated board - high-tech thermal insulation

Approximately 24% of the heat in a house is released through the roof into the environment, so accurate calculation and a balanced approach are required to insulate it. The technology of corrugated roofing provides for the creation of a heat-insulating layer of the roof. Together with waterproofing, it forms a roofing pie for corrugated board, which performs a protective function.

It is also necessary to correctly select a certain thickness of the thermal insulation layer and protect it from moisture. When the thermal insulation gets wet (even within 5%), all its heat specifications cutting are reduced by almost 2.5 times. Such a loss leads to freezing of the roof, icing, damage to the interior decoration, the appearance of frost on outer coating roofing, the formation of fungi and mold, rotting of rafters and battens.

Ways for moisture to get into the insulation:

Normal evaporation from the indoor area;

Collection of condensate from inside roof coverings;

Various installation defects.

Roof insulation from corrugated board

Insulation of the roof of the attic floor

A special Tyvek Solid waterproofing membrane is laid on the rafters.

Thermal insulation is installed under the waterproofing in the plane of the rafters.

From the inside (from the room), the thermal insulation is protected by a vapor barrier membrane or film, in which the joints must be hermetically glued.

The room itself - the attic is sheathed with wood, OSB or something similar.

In order for the mixing of air flows to occur effectively, it is necessary to make a “cold triangle” under the roof ridge. Such a device will allow you to install under-roof ventilation outlets not for each rafter span, but after two or three. Condensation formation on the cold bottom surface of the sheets can be reduced by providing air movement from the eaves to the ridge between the two elements: the waterproofing membrane and the roofing.

Thanks to this organization of the ventilation process, there is no interference with the influx of "street" air through the slots in the filing of the eaves and through special ventilation outlets (and for air outlet under the ridge). To protect the installed thermal insulation from moisture, waterproofing and vapor barrier membranes and films are used, thereby creating conditions for ventilation of the entire under-roof space of the roof.

Cold roof. Non-residential (attic) premises

A waterproofing film or a TS (Tyvek Solid) membrane is laid along the rafters.

Thermal insulation must be placed horizontally along the ceiling of the room, so the attic remains cold (non-residential).

From the inner room of the house, the thermal insulation is protected by a special vapor barrier membrane or film, in which the joints must be hermetically glued.

To organize the ventilation of the attic, you need to ensure the flow of air from the street through the cracks in the filing of the cornice, and make it out through the dormer window and under the ridge (or through the ventilation outlets intended for this).

Warm roof: installation of waterproofing

Installation of waterproofing after laying the roof with corrugated board

For option warm roof waterproofing membranes are used.

For example, the Tyvek Solid membrane is mounted with the marking outward, Tyvek Soft is easily installed on either side.

Before installing the main waterproofing in the valleys, a roll of the waterproofing membrane is opened from top to bottom along the entire length of the valley.

The rolls of the main waterproofing along the length of the rafters are rolled out horizontally (avoid sagging), starting at the eaves and up to the ridge with the required overlap of 150 millimeters so that the junction of adjacent rolls falls on the rafter section.

Warm roof: installation of thermal insulation

Installation of thermal insulation

Upon completion of the installation of waterproofing between the rafters (namely, in the spacer), mats or thermal insulation plates are installed.

During this, there is no need to make a gap between the thermal insulation and the Tyvek membrane.

If you need to install in several layers, then the thermal insulation is laid with a noticeable overlap of the seams of the previous plates that were laid.

In order to cut thermal insulation boards more accurately, better and faster, it is recommended to use a special knife for cutting thermal insulation.

Warm roof: installation of a vapor barrier film

From the bottom up, on the inner surface of the rafters, sheets of vapor barrier films H96 Silver, H110 Standard are attached with a conventional construction stapler.

They are overlapped, and then hermetically connected with a connecting tape SP-1.

Slots and passages through the vapor barrier film must be carefully sealed.

After all of the above, you can install the inner lining.

Warm roof: OSB filing

OSB filing

When performing the interior lining of the attic, they use Oriented Strand Board with increased moisture resistance. The recommended thickness is 9, and sometimes 12 mm.

OSB is fastened using nails of 50-70 millimeters to the rafters (supports), in increments of 200-300 mm. The distance from the edge of the OSB to the driven nails is from 10 mm or more.

Cold roof: installation of waterproofing

For cold roof they use both Tyvek Solid waterproofing membrane and D96 Silver waterproofing films (D110 Standard). Tyvek Solid films and membranes must be laid with the logo facing out. It is not recommended to turn the waterproofing material over, because of this, its properties are lost.

It is desirable to lay the films with an allowable sag (up to 20 mm) to ensure the condensate drain. If you use Tyvek Solid membranes, then this sag is not required.

A roll of waterproofing is rolled horizontally along the rafters. At the beginning, the cornice is taken and stretched to the ridge, but at the same time, overlap and fixation with falling wooden bars or with a counter-lattice is obligatory. The connecting joint of the rolls must be on the rafters.

Sheathing for roofing

REMEMBER! The crate is always laid on top of the waterproofing material.

The crate is made from wooden bars, pre-treated with an antiseptic, with a section of 50 × 50 mm and edged boards with dimensions 32×100 mm (ratios are approximate).

The counter-lattice is nailed to the rafters from above waterproofing film from the ridge to the roof eaves. It turns out a kind of falling bars 50 × 50 mm. Further, crate boards are horizontally attached to them.

For the installation of corrugated boards, the boards of the battens must be 32 × 100 mm. For roofing corrugated board, the crate is mounted with an approximate step of 500 mm.

In the areas of attachment of the valleys, under the roof fencing, around the chimneys, it is required to place a continuous crate.

Skate deck

From each side ridge bar attach two additional boards.

Sheathing at the ends of the roof

Boards with a height greater than that of a conventional crate by the size of the height of the corrugated board profile are attached to the end strips (technology requirement).

Roofing of the roof with a profiled sheet - the price of which is currently one of the most attractive among similar roofing materials - is the most suitable option, both for individual construction and for the construction of warehouse and production facilities. Roofs where corrugated roofing was used, there are a huge number of their photos on the Internet and on our website too.

The choice of material for the roof, whether it is a private house or an industrial building, is usually influenced by many factors. And first of all, the budget that we have at our disposal. In addition, you should always take into account your wishes and clearly understand what exactly you want, what type of roof you want to build. For how long roofing material will serve you and will protect your roof from external influences, the quality of the installation largely affects. But the norms according to which it should be carried out stipulate the regulatory provisions of SNiP roofing from corrugated board. It is here that the factor conditions are precisely specified, which have a primary influence on which material for the roof will be chosen - the type of room, the roof structure and financial possibilities.

Decking

Decking is a fairly popular and sought-after material that is used in almost all areas of construction - it is used as a finishing material, as roofing, floors of the construction of individual buildings and so on. They are made by galvanizing and cold rolling of metal sheets. There is also a classification this material. Usually it is marked with letters, which mean in which particular area this or that type of corrugated board is used. So, if the material is marked with the letter "C", this means that it is used during work with walls, "H" - with the roof. But the marking "NS" means that you are dealing with a universal material that can be used at your own discretion.

Also, the distinguishing features of the material are the wave height, sheet thickness and the overall rigidity of the resulting structure.

According to the requirements of SNiP, corrugated roofing must meet several important parameters. Consider these requirements and determine which roof is considered ideal.

The right cake on the roof of corrugated board

So, roofing work is the final stage in the design of a corrugated roof. Before getting busy roofing installation, there is a lot of other, no less important and responsible work to be done. In this case, all work must be carried out in a strict sequence, which in no case should be violated. The result of this work is a roofing pie for corrugated board. It usually consists of a base coat, insulation and insulating membranes.

Each of these layers performs its own, especially important functions, so the approach to each of the layers must certainly be thorough and individual. If violate existing rules and norms, the roof will never function properly and perform its direct duties. Such roofs are not afraid of either moisture or cold, they simply will not pass into the room.

In addition, if the roofing cake is not laid correctly on the profiled sheet, the building may completely fall apart and collapse in the near future. Then all our efforts will go down the drain.

The device of a roof from a professional flooring

An important and crucial moment in the formation of a roofing pie is its insulation and, accordingly, installation work on laying insulation. It is at this stage that inexperienced builders make the biggest and most fatal mistakes.

The SNiP clearly states that the insulation should be installed clearly in the inter-rafter space. So, the insulation is designed to keep the internal temperature of the room, prevents it from cooling. To improve the performance of the insulation, to reduce the incoming air, it (the insulation) must be covered with anti-wind barriers. The material for such a barrier is roll materials that do not skip steam. Thanks to this layer, condensate will not form, which means that the service life of the insulation, roof and building increases significantly.

Roofing and its device

Most choose corrugated board as a roofing material for two main reasons. Firstly, this material is cheaper than others intended for this purpose. Secondly, its installation is quite simple, so even a non-professional can do it.

Decking is one of the most unpretentious materials, which has a lot of other advantages.

If you carefully study the SNiP, you will certainly notice that special attention is paid only to the layers of thermal and noise insulation that make up the corrugated roofing system. The explanation for this is simple - the rest structural elements it is not difficult to build and design, you even do all the work yourself, without making any special efforts.

A little higher we have already talked about how insulation should be made so that it is durable and works efficiently. But a simple laying of the roof over thermal insulation, alas, is not enough. Of course, especially negligent builders manage to do just that. But then the building does not last long at all, and soon the roof becomes unusable.

Features of the installation of corrugated board, depending on some indicators

Under normal conditions, after the installation of the insulation is completed, a crate is installed on it, and only after that it is possible to start laying the roof from corrugated board. Provided that you choose corrugated board as the roofing material, the work is minimized and greatly simplified. This is ensured by large sheet dimensions, as a result of which much fewer support beams are needed.

It is important to correctly and accurately calculate the distance between the transverse and longitudinal beams. It is calculated on the basis of sheet dimensions, while taking into account the overlap (about 10 cm).

Bars with a thickness of about 3 cm are suitable for the crate. This size allows you to withstand the weight of the roof, and the weight of the workers who are installing the roof from corrugated board.

Table of the minimum slope of the roof from corrugated board

Do not forget that when assembling the crate, additional stiffeners should be installed. Of course, this condition is not mandatory, but it is better to adhere to it. Such ribs extend the operational life of the roof.

A clear advantage of corrugated roofing is that it is not difficult to repair such a structure. If necessary, you can easily dismantle the sheet of corrugated board and replace it with a new one. You can also weld a small patch with roofing torches.

There are no fixed step values ​​during the installation of the roof sheathing. It all depends on which roof slope you have chosen, as well as how the rafters are designed. There are special calculation tables, formulas that allow you to calculate everything with accuracy. You can familiarize yourself with one of them (see Table of the minimum slope of a corrugated roof).

Building a crate and producing everything necessary calculations, be sure to pay attention to the following important point. There must be gaps between the insulation layers and the roofing material!

The value of this gap is not fixed. However, a gap is usually left, which is equal to the beam thickness of the crate. However, this is not a rule, and the gaps can be much larger.

In addition, the clearance value can be affected by how the edge of the roof is designed.

So, if there are additional structures on the roof space, near the edges (for example, you have installed or plan to install snow retainers, gutters, and so on), then it is quite enough. So that the gap value is equal to the beam thickness (about 3 cm). In addition, you can leave gaps equal to the height of these most additional structures.

Roof slope and choice of roofing

Choosing roof slopes

It has already been noted that the roofing material can directly depend on how large (or small) the slope of the roof of the building is. The definition here occurs by gravity, also by observing operating conditions, the ability of a particular material to resist weather conditions. In this case, of course, it is best to acquire a corrugated board.

It is considered ideal roof slope is 20 degrees.

But carbon copy roofs are not made. That is why there is a table minimum slopes, which should always be used when building a roof.

Due to its characteristics, corrugated board can be used for roofs with a slope of 7 degrees. However, according to building codes, therefore, it is only permissible for roofs of industrial and utility rooms. If the building assumes that they will live in it, the degree of slope must be at least 10.

Many are perplexed - what can affect and how does the slope on the roofs affect? During installation, the roof angle affects the rules for constructing the crate. So, SNiP says that the amount of overlap along the length of the material depends on the slope. The minimum angles assume that the crate steps are 40 cm, the average angles are from 5 to 100 cm. If the oblique angle is 20 degrees, then the crate step can be selected in the region from 300 to 650 mm.

Taking into account the conditions of SNiP and skillfully applying all the above figures, you will certainly ensure that the quality of roofing from corrugated board is maximum, and the service life is longer!

To protect the house from rain and snow, it is necessary to close it with a reliable roof. The roof covering is intended for protection of internal rooms from adverse atmospheric influences. Most often, a gable or four-pitched (hip) roof is used for private houses, but for small buildings a single-slope device is possible.

A multifunctional profiled sheet can be used as a coating material. A do-it-yourself profiled sheet roof will allow you to complete the construction without unnecessary costs and loss of quality.

Pros and cons of roofing material

Installation of corrugated board on the roof is a fairly popular way to complete the box of a building. But before choosing this particular material, you need to familiarize yourself with its advantages and disadvantages. Knowing undesirable features, you can eliminate or smooth them out in time.

The advantages of the material include the following characteristics:

• a shed or gable roof made of corrugated board with your own hands has a fairly low cost;
• installation technology and transportation do not cause difficulties;
• technology allows for high speed roofing works;
• light weight of the material;
• strength and resistance to snow loads;
• high degree of waterproofing with proper installation;
• long service life;
• resistance to corrosion and fading under the influence of ultraviolet radiation;
• Fire safety;
• with proper fixing, high resistance to wind loads;
• the ability to use a sparse crate, which saves materials;
• the presence of a variety of colors.

Standard dimensions of corrugated board

List positive characteristics wide enough, but do-it-yourself corrugated roofing has disadvantages:

• laying the metal sheet makes the roof too noisy when it rains;
• surface heating in the sun;
• it is important to carefully lay the material, leakage is possible due to installation errors;
• the appearance of corrosion in areas with a damaged top layer.

If you do the job correctly, the above problems will not arise. To reduce the noise level, soundproofing materials are placed in the coating cake. Heating from the sun in this type of roofing is not higher than in other materials. Unlike, for example, shingles it does not lead to a change in the structure of the coating and its melting. If the installation technology is followed, there are no problems with leaks either, and in order to prevent corrosion, it is necessary to be careful during transportation and movement, to prevent damage to the profiled sheet.

Which profiled sheet to choose for the roof

Enough for sale a large number of various kinds corrugated board. When buying material for a shed or gable roof, you need to pay attention not only to color, but also to technical characteristics, namely:

• metal thickness;
• profile type and height;
• type of protective coating.

By regulatory documents There are three types of profiled sheets:

• grade "H" with high bearing capacity for horizontal structures;
• grade "C" for vertical structures;
• brand "NS" - universal.

It is best to lay on the roof material of grades "H" and "NS". Grade "C" can only be laid in the roof cake on small buildings with a large roof slope (60 degrees or more).

It is also possible to lay a wall profiled sheet in a pie for a shed roof of garages. Also, when choosing, it is necessary to pay attention to the wave height of the sheet, it is indicated immediately after the letter in the marking. For pitched roofs, laying grades H60 and H75 is possible. For flat profiled sheets H75 or H114 are suitable. To choose the right one, you need to know the snow load and the pitch of the rafters.

Roof construction options

Depending on the purpose of the under-roof space, the pie of a shed or gable roof may differ. When arranging a cold attic or technical floor, the pitched roof structure will look like this:

Pitched roof structure

• rafter legs;
• waterproofing;
• crate;
• roofing.

In this case, insulation is not required, as it is provided by the attic floor pie.

For the arrangement of the attic or warm attic insulation needs to be installed. The roofing pie from the profiled sheet will look like this:

• ceiling lining;
• bottom crate;
• vapor barrier;
• rafter legs with insulation between them;
• waterproofing;
• wind protection;
• counterlattice;
• upper crate;
• roofing.

The cake also largely depends on the chosen insulation. For example, laying mineral wool requires the arrangement of an air-ventilated layer. The thickness of such a gap should be at least 4-5 cm. This must be taken into account when choosing the thickness of the rafters and counter-battens. The insulated roof must meet the requirements of heat engineering, on the basis of which the thickness of the heat-insulating material is selected.

Step by step laying technology

The device of a roof from a professional flooring demands performance of a preparatory work. They include measurements of the exact length of the slope and calculation required amount sheets. The roof of individual buildings can be single-pitched, double-pitched or four-pitched. Most often, the length of the profiled sheet is taken equal to the length of the slope. In the calculations, it is necessary to take into account the margin for overlap, which depends on the angle of inclination of the surface:

• 200 mm or more for roofs with a slope of less than 15 degrees;
• 150-200 mm for roofs with a slope of 15-30 degrees;
• 100-150 mm for roofs with a slope of 45 degrees or more.

Having calculated the amount of profiled sheet needed to cover the roof, it is necessary to check the tools that may be needed. The device of a roof from a professional flooring requires the presence of:

• rulers and pencils;
• building level;
• hammer and nails;
• tools for cutting metal (metal shears, hacksaw, circular saw, electric jigsaw for metal);
• riveting machine with steel rivets.

Having prepared all these tools in advance, you can easily lay a profiled sheet.

Choice of crate

Installation instructions for this item truss system simple enough. Shedding for a shed or gable roof can be of two types:

• solid;
• sparse.

Types of lathing for roofing

In most cases, both options are installed on the same roof. For the main area, the lathing is laid sparsely, and such roofing units from corrugated board as valleys, cornices, skates require laying without gaps.

The crate of a shed or gable roof can be made from the following materials:

• timber with a section of 50 by 50 mm;

board with a section of 32 by 100 mm.

The dimensions also depend on the snow load and the pitch of the rafters. In the first case, the crate is laid every 5 cm, and in the second, every 10 cm (that is, every one). It is possible to lay more discharged.

All wooden elements roofs in without fail it is required to treat with antiseptic compounds before starting work. After fixing the bars or boards (if there is no need for waterproofing), you can lay the roofing material.

Instructions for fastening sheets

Installation of corrugated roofing requires attention to the reliability of fastening. Sheets are fixed with self-tapping screws in the lower part of the wave. To properly cover the roof, you will need to prepare self-tapping screws with hexagonal caps and neoprene gaskets. It is necessary to use special high-strength fasteners designed for metal.

This video provides instructions for laying the profiled sheet:

The fastening technology is quite simple: sheets are fastened with self-tapping screws to the crate in the lower part of the wave so that for each square meter coating accounted for 5-7 fasteners.

Also, before starting, do not forget to familiarize yourself with the important subtleties that professionals talk about:

Before you cover the roof of the house with corrugated board with your own hands, you need to carefully study the issue. If the structure is mounted correctly, there will be no problems with its operation in the future. The roof will not leak and will last for many years.

Do-it-yourself corrugated roofing: instructions

The roof, covered with corrugated board, has a lot of advantages. We will tell you how to properly install the profiled sheet on the roof with your own hands.

How to insulate a corrugated roof?

• Roofing of a non-residential attic
• Polyurethane foam spraying

Decking has become one of the most popular roofing materials, the reason for this is its affordable price and aesthetic appearance. However, corrugated board cannot provide proper thermal insulation of the roof, therefore, roof insulation from corrugated board is an obligatory stage of construction.

Mansard roof insulation scheme.

Most often, to provide thermal insulation, a structure called a "roofing pie" is used. It consists of corrugated board, insulation, waterproofing layer and wood. " Layered cake» not only prevents heat leakage, roof leakage and condensation, but also keeps the house cool in hot weather. In addition, the insulated roof plays the role of a good sound insulator, which is especially noticeable during rain or hail.

• corrugated board;
• mineral wool or glass wool as a heater;
• waterproofing membrane;
• special vapor barrier film;
• construction knife for cutting insulation;
• connecting tape for the design of film joints;
• staple gun;
• screwdriver;
• self-tapping screws;
• board 140x40 mm for framing;
• board or timber 40x40 cm for the counter-lattice;
• lining or moisture-resistant plywood for finishing the attic ceiling (if necessary).

Before starting roof insulation, it is necessary to decide whether the attic space will be residential. In the case of a negative answer, the insulation can be transferred directly from under the roof to the attic floor. In this case, its main task is to provide heat in the house, and insulation of the attic space is not required.

Installation of a "roofing pie" for an attic

When roof insulation is organized, great attention is paid to waterproofing.

Roof insulation between rafters.

The ingress of moisture into the insulation leads to the appearance of mold and fungus, rotting of the elements of the truss system, damage to finishing materials in residential premises, and icing of corrugated board. waterproofing material laid horizontally on top of the rafters and secured with a staple gun. Each subsequent row is mounted with an overlap, the seams are glued with a connecting tape. The joints of the material in one row are also overlapped and sealed with tape. Ideally, these seams should fall on the rafters.

The next step is the construction of the roof frame. On top of the waterproofing membrane, boards of 140x40 cm are mounted perpendicular to the rafters with a step of 1-1.5 m “on the edge”, that is, the height of the lag is 140 cm. Further, counter-lattice boards are attached to the logs parallel to the rafters with a step of 50 cm. The formed frame is sheathed with a profiled sheet.

Insulation is installed from the inside of the roof. Mineral wool slabs are laid in the gaps between the rafters "in a spacer". Insulation in rolls is cut into fragments of the required size using construction knife. The thickness of the insulation should be maximum, 100 mm. In the absence of such a material, you can use a thinner one, laying it in several layers with offset joints.

A vapor barrier film is laid on top of the insulation, which is attached to the rafters with a staple gun. The joints are overlapped and glued with a connecting tape. At the end, wood paneling is mounted. It can be lining or plywood. The main thing is that the material is moisture resistant.

Roofing of a non-residential attic

Waterproofing in this case occurs in the same way as in the previous one, then the frame and corrugated board are mounted. And the insulation is organized a little differently. The vapor barrier is laid on the floor of the attic with an overlap of 15 cm, the joints are glued with a special tape. A heater is laid on top of the vapor barrier. Thus, the attic space turns out to be cold, and the living quarters below are warm.

Polyurethane foam spraying

Roof insulation with foam plastic is carried out in the same way as insulation with mineral wool slabs.

There is an option in which the roof insulation occurs without the construction of a "pie". To do this, use polyurethane foam, which is applied directly to the corrugated board, forming a monolithic coating without joints and seams. Unique properties polyurethane foam allow you to avoid the installation of additional hydro- and vapor barrier. The technology of applying polyurethane foam (liquid foam rubber) makes it possible to insulate a roof with an area of ​​up to 1,000 square meters. m in one day. Such insulation fits snugly to the roofing, repeating its geometry. The service life of foamed polyurethane is up to 50 years.

The high adhesion of polyurethane foam allows it to be used as a heater not only for the roof of a private house, but also for the roofs of industrial buildings, where metal rafters are usually used. In order to avoid the formation of condensate, thermal insulation is required not only for corrugated board, but also for metal rafters. The roofs of industrial facilities often have large spans. Polyurethane foam coating, due to its low weight, has a minimal impact on the roof structure. Polyurethane foam can also be applied to outer surface corrugated board. This will protect the roof from the effects of precipitation and make it completely airtight. However, in this case, you need to take care of protecting the insulation from ultraviolet radiation. To do this, use a special coating that is resistant to radiation.

Modern technologies contribute to the fact that roof insulation can occur with minimal effort. We are talking about the use of corrugated board with insulation. This roofing material contains, in addition to the outer metal layer, another layer of insulation and waterproofing. The thermal conductivity of this material does not require additional thermal insulation. How exactly to insulate the roof from corrugated board, decide based on the characteristics of the operation of the roof and your financial capabilities.

Insulation under corrugated board: roof insulation

Insulation under corrugated board does not make sense without waterproofing, since moisture ingress into the insulation contributes to the appearance of mold and rotting of wood.

Insulated corrugated roof

Why is corrugated roof insulation necessary? The answer to this question is quite obvious. It is through the roof that approximately 25% of the heat is lost from the room. Therefore, the correct and effective insulation of the roof is a task of paramount importance.

Insulation of the roof from profiled sheet and reduction of heat loss through the roof allows to reduce the energy consumption spent on heating the air in the room. It is well known that warm air lighter than cold and rises up under the ceiling of the building. That is why the insulated roof made of corrugated board allows you to make the conditions in the room more comfortable and significantly reduce heating costs.

Basic requirements for heat-insulating materials when constructing a warm roof from corrugated board

Vacuum is considered an ideal insulation, very close to it in terms of characteristics and the usual dry air surrounding us. Its thermal conductivity is 0.025 W/(m°C). It is this characteristic that is most important for any insulation. The lower the thermal conductivity, the smaller the thickness of the thermal insulation layer, the higher its efficiency and the lower the cost of roof insulation. For various modern heaters, thermal conductivity can range from 0.029 to 0.23 W / (m ° C).

Another important characteristic of thermal insulation materials is hygroscopicity, that is, the ability of the insulation layer to absorb moisture, as well as their vapor permeability. Last Feature determines the ability of a thermal insulation material to pass moisture contained in the air without retaining it.

Usage effective heaters allows you to create a "breathing" roof - just such a roof made of profiled sheet with insulation will provide the optimal level of humidity in the room.

In addition to these basic characteristics, thermal insulation materials differ from each other in compressive strength, resilience and elasticity. These parameters are selected depending on the conditions under which the insulated corrugated roof is operated. The most widely used for roof insulation are heat-insulating materials based on expanded polystyrene or basalt fibers.

When performing roof insulation from corrugated board, first of all, it is necessary to determine the thickness of the insulation layer. This calculation is quite complicated, since it is necessary to take into account a large number of factors - from the temperature coefficient of the area to the level of humidity. The coefficient that takes into account the necessary factors is called the heat transfer resistance coefficient for the roof and is denoted by the Latin letter R.

This coefficient has already been calculated for the administrative centers of the Russian Federation, and is shown in the table below. If you need to calculate for another area, then you will have to use a special regulatory documentation. In particular, SNiP 23-02-2003 " Thermal protection buildings."

The table below shows an approximate calculation for the cities of Anadyr, Salekhard and Yakutsk. Due to the difficult climatic conditions, in these cities, clarifying calculations are needed.

The thermal conductivity coefficient of the insulation can be viewed either on the packaging or in the accompanying certificate. I draw your attention - it is necessary to take exactly the coefficient with index B, which characterizes the use of the material in a humid environment.

According to technology, the device of a warm roof made of corrugated board depends on the design of the roof. A warm roof made of corrugated board can be pitched or flat. The technology for installing insulation in the first and second cases is somewhat different.

Insulated corrugated board on pitched roofs

Having made the necessary calculations and determined the thickness of the thermal insulation layer, we will solve only part of the problem. Next, we need to achieve the main thing - to create such conditions in which the selected insulation will be guaranteed to retain its properties and corrugated board with insulation will make our house warm and cozy.

The greatest danger for most thermal insulation materials is moisture. The basis of any insulation is ordinary air enclosed inside the granules or fibers of the insulation. That is why all thermal insulation materials are very light. After all, the smaller their specific gravity, the more air in the pores of these materials and the higher their thermal insulation properties.

But worth it thermal insulation materials to be in a humid environment, their properties change dramatically. If the humidity of the insulation layer increases by 5%, then the thermal resistance, the main indicator of its properties, decreases by 50%, that is, by half.

The device of insulated roofing from corrugated board is most often performed from roofing insulation based on basalt fibers, which are produced in the form of rolls or slabs. Their disadvantage is that they can absorb moisture from the surrounding air.

Unlike these materials, polystyrene boards are not hygroscopic. But they are very fragile, combustible and can decompose at temperatures above 60 degrees. Therefore, polystyrene foam boards are relatively rarely used for roof insulation.

Where does this dangerous moisture come from and how can we protect our roof from it? There are two main reasons why moisture can get inside the insulation. The first is precipitation, that is, simply put, rain or snow. The second is condensation, which can form when the roof covering comes into contact with warm, moist room air on the one hand, and cold outside air on the other.

First of all, the insulation is protected from atmospheric moisture by the corrugated roofing itself. In addition, when arranging the so-called “roofing cake”, a special substrate is used for corrugated board. Usually these are special vapor permeable membranes that allow water vapor to pass only in one direction. These membranes are laid on top of the insulation layer. It is such a substrate under the corrugated board that does not allow moisture from the outside to penetrate into the thermal insulation layer, and the moisture inside the insulation easily comes out.

The substrate under the profiled sheet is laid on top of the rafters and pressed against them with wooden blocks, 40-50 mm thick. They are mounted along the rafters and are called counter-battens. The crate to which the corrugated board is attached is mounted perpendicular to the rafters. Thus, a ventilation gap is created between the membrane and the corrugated board. The air circulating there also removes moisture from the roofing, and the substrate under the corrugated roof always remains dry.

From below, the profiled sheet with insulation is protected by a hydrobarrier. So called reinforced for greater strength with fiberglass polyethylene film. It is she who protects the insulation layer from moisture in the warm air of the heated room. For better ventilation, it is recommended to leave a gap of 2-3 cm between the hydrobarrier and the insulation.

The device of a warm roof from corrugated board on flat roofs

The roofs of non-residential buildings and industrial buildings are usually made flat. In this case, the corrugated board is usually not higher, but, on the contrary, lower than the thermal insulation. That is, it acts as a cover.

When insulating such roofs, a waterproofing film is freely laid over the profiled sheets with an overlap of 100 mm. Next, the insulation boards are laid out. They can be laid in one layer or two layers.

The first method is called single-layer conditionally. Since thermal insulation boards are produced with a thickness of not more than 100 mm, they are always laid in several layers. But in a "single-layer" installation, all insulation boards have the same density.

With the two-layer method upper layer thermal insulation boards has a high density, and, therefore, a large load capacity. At the same time, the plates of the upper layer distribute the load on the roof over the entire layer of thermal insulation. This method of laying allows you to make exploitable roofs that can easily support the weight of a person.

After the installation of the boards, a bitumen or PVC roofing is laid on top of the thermal insulation layer.

Insulated roof from corrugated board - methods for insulating roofs from corrugated board

Do you need to insulate the roof from corrugated board, but do not know how? Visit the site! Here you will learn about what types of insulation are and how to calculate the thickness of the insulation layer for your region. In addition, the article considers the structure of a roofing pie for pitched flat roofs.

AT suburban construction There are many types of roofing materials in use today. These are high-quality, presentable building materials that meet all the requirements of modern housing.

Such coatings include profiled sheets. Modern corrugated board has excellent external data, protective qualities,.

It is divided into main types that have their own specific indicators: application and device. Features of corrugated board (each separate sheet) are mainly in their shape and size. Width, type of use of the material, its device are also important. The use of this roofing building material can be considered very relevant, in demand.

But to assume that it is quite simple to arrange a roof from corrugated board is a big mistake. There are some nuances here, they must be followed.

The advantage of profiled sheets

The material has gained popularity due to good performance.

• First, reliable strength, as it is made of special steel sheet. This ensures the reliability of the roof structure.

• Secondly, with a molded profile, additional strength is given by stiffeners. Therefore, corrugated board is effectively used in structures that require strength.

• Thirdly, this metal profile is universal. Due to the wide range of uses, the popularity of corrugated board is growing. It performs roofing, wall and load-bearing functions.

• Fourthly, the sheets do not require complex installation.. It is enough to “arm yourself” with hand scissors for metal, circular saw, cutting scissors.

• Fifth, it has very high anti-corrosion performance.. It also doesn't rot. After all, the presence of a special gutter, where the junction of the roof sheets occurs, allows you to remove the resulting condensate. Doesn't let moisture through roof deck. Provides protection from snow.

• Sixth, the lightness of corrugated board can significantly reduce transportation costs..

Instructions for a cold roof from a profiled sheet

This roof is built without special difficulties. The finished truss system is covered special . It is intended to protect the roof frame, as well as the attic space from condensation.

Then mount the crate of the desired type. After that, the installation of corrugated board is already being carried out on it. The roof must be equipped with special ones in order to protect the lumber from high humidity. Humidity is characteristic especially for a cold design.

Installation of corrugated board has some features of the device. They must be taken into account when proceeding with the installation of a "cold" roof. If in the future it is planned to insulate from the inside finished roof, then you will need to use a more expensive membrane film, which, of course, will provide high-quality waterproofing.

Standard isomaterials are unacceptable here - their design is not suitable for the installation of insulation material. When constructing a simple cold structure, the use of expensive material is very irrelevant, because the roof will cost much more.

The main preparatory work involves lifting the profiled sheet with the help of special logs made of lumber. With such a rise, protection against mechanical damage will be provided, thereby maintaining protective layer material.

It is undesirable to mount sheets in windy weather - their bend is possible.

You will learn more about installing the crate under the profiled sheet, depending on the brand.

Basic installation rules

The service life of the roof depends on the quality of installation, the norms and requirements of which are described in the SNiP for laying profiled sheets. Each roofing material is laid at a certain angle, ensuring reliable performance. The installation angle of the roofing is determined taking into account the angle of the slope.

• N - bearing.
• C - wall railings.
• NS - roofing and wall.

Installation rates for different regions vary in different ways. On average, the installation of a roof from a profiled sheet will cost 350-450 rubles per sq.m. The price may include the installation of a wooden crate, waterproofing and all. The cost may increase if you need additional services:

• insulation - 50-80 rubles \ sq.m. (considered as a thickness of 50 mm.);

• dismantling of the old roof — 50-100 rubles/sq.m.;

• installation of the truss system - announced when the installer leaves the house and he can make an estimate for the list of the necessary material.

How to choose and install a roof from a profiled sheet, see the video.

AT modern construction used a huge amount various materials, which are perfectly combined high level quality with operational characteristics as well as functionality and economy. The presence of a complete set of these advantages is one of the main requirements for modern building materials, to which corrugated board can be safely attributed. It is widely applicable as a facing material. And the installation of corrugated roofing, made in compliance with all technological processes, will create a practical and durable roof.

What characteristics inherent in such material as corrugated board? First of all, it is a way of its production. For its manufacture, galvanized steel sheet is used, on which cold rolling is applied. A special coating that prevents corrosion is applied on both sides of the profile - wave or trapezoidal. This coating can have different shades.

Depending on the purpose, corrugated board is distinguished: bearing, wall and roofing. Each of these groups of material has its own wave height, metal thickness and designation.

For roofing work, you should choose corrugated board with letter designation"N" or "NS". The latter, by the way, is a universal material and can be used as a wall option.

The device of a roof made of corrugated board involves the use of corrugated board, which has a height of at least thirty-five millimeters. If the roof has a short slope length, then it is possible to use corrugated board with a lower wave height.

Use of roofing material

The technology of roofing from corrugated board, according to SNIP, involves the use of corrugated board, which has a height of forty-four millimeters. Roof profiles have aluminum or zinc coating with an additional polymer layer that performs a decorative or protective role.

The basis for corrugated board can be wooden bars or metal girders. The bearing capacity of the foundation depends on the strength of the wind inherent in this climate zone and the expected load of the roofing material on the roof of the building. In addition, in order to adjoin the profiled sheet to the wall system, the corrugated roofing device provides for the presence of aprons made of galvanized steel sheets and coated with a polymer layer.

Finishing of roof gaps is carried out using roofing elements of a shaped type, which have a comb similar to a cross-sectional profile. In addition to eaves, gutters and ridges, other elements are used in the construction of the roof structure: special plugs, snow barriers and ridge seals.

Profile sheets can be used both for cold roofing in the form of piece elements, and as part of a warm multi-layer roofing as a whole sheet.

Basic rules for installing corrugated roofing

The laying of profiled sheets must be carried out in strict compliance with certain rules. First of all, this is a complete security and following the installation technology in the processes of lifting the material and subsequent movements along the roof, as well as fixing the base material.

Raising the corrugated board to the roof is carried out with the help of a log by two workers, a third person takes it upstairs. At the same time, no more than one sheet is lifted at a time.

If on the street strong wind, work on raising the corrugated board should be postponed for a while!

To move on the roof, you should wear shoes with soft soles and you need to walk on it, trying to step into the deflection between the waves. To do this, lay the corrugated board in such a way that the deflection is tightly adjacent to the grate. Since the edge of the material is quite sharp, for your own safety, work must be done with rubber gloves.

Laying profiled sheets overlap. The size of the overlap directly depends on the angle of the roof. The lower it is, the more overlap. For a flat surface, the material laying technology is somewhat different. In this case, the sheets must be applied in two corrugations to prevent moisture from entering under the roofing.

Chips that form when fastening profiled sheets with self-tapping screws from screwing them in must be removed with a brush. Otherwise, the rust that forms on it over time will greatly damage the roof.

If products with a protective film are used, then in order to avoid its “growth” with polymeric material must be removed during installation.

Roofing cake - keep warm and protect from noise

Using a corrugated roof for the roof of your house, it is very important to create good warmth and noise insulation, since the house “gives off” more than 20% of the heat environment right through the roof. And with such a task, a special heat-insulating layer that performs a protective function, called a roofing pie, does an excellent job.

What does the roofing pie under corrugated board consist of? The first layer on the counter-lattice, installed on top of the truss system, is laid insulation.

Please note that the roof slope of corrugated board must be at least 20%.

The next component of the roofing pie is the waterproofing layer. It is necessary so that water does not flow through the joints of the sheets and at the junctions. On top of the waterproofing, in compliance with all ventilation gaps, a crate for a profiled sheet is installed, which is laid on it with the last layer.

All layers of the cake are interconnected and perform a specific functional task. An error in the technology of at least one layer can lead to a decrease in the service characteristics of the entire roof and its operational life. The following situations may indicate that the roofing cake was assembled incorrectly:

• ceiling leak;
• Heat loss;
• Condensation formation;
• Frost.

If quality work has been done to install thermal insulation, it can guarantee minimal heat loss through the roofing and prevent surface condensation.

Installing a special wind barrier made of roll-type vapor-tight material will help to avoid blowing through the roof.

The seal performs two main functions. Firstly, it limits the heating of the roof space. And, secondly, creates indoors good sound insulation. The vapor barrier layer solves the issue of moisture getting from the room into the roofing pie. And the waterproofing "stuffing" of the cake protects the insulation from the penetration of condensate into it, which usually forms along the bottom of the profile sheets.

When laying a waterproofing film, it is necessary to observe the distance between the rafters, on which it lies no more than 120 centimeters.

Lathing for profiled sheets

The crate is an obligatory element in the device of a roof from a professional sheet. For shed roofs, wooden bars of the following sizes are used as a crate: 5x5 cm, 3x10 cm, or 3x7 cm. Lathing elements are laid in increments of 25 cm. If the angle of inclination of the slope does not exceed 15 degrees, a continuous crate made of plywood is used, OSB boards or boards. Lathing for gable roofs is mounted in increments of 50 cm.

For roofs that have a complex geometric shape, in the grooves and valleys it is impossible to close the crate closely, you need to leave a gap for ventilation of 5 cm. The roofing device from corrugated board requires that the bottom plank should have an entry under the profiled sheet at a distance of 25 cm.

If ventilated or chimney pipes are provided in the roof structure, an additional crate will be required.

Fastening sheets together is an important stage in the roofing process.

Particular attention when installing corrugated roofing should be paid to fastening the sheets to each other. After all, the nodes of the roof from the profiled sheet are the most important point in this work. Negligence towards the nodes located at the joints of the sheets can significantly affect the performance of the future roof for the worse. The process of laying sheets does not cause difficulties, much more strength and time spent at the places of their connections.

The main purpose of corrugated roofing units is to create insulation for the transitions of a horizontal surface to a vertical one and, of course, to connect the profiled sheets to each other. Therefore, their implementation should be approached with great care.

When creating adjacency nodes, the following actions are performed:

1. To prevent the ingress of dust and moisture at the junction, a bar is installed, under which a seal is arranged;
2. A groove is created in the wall, which is inserted into the groove and then fixed with dowels and coated with a layer of sealant;
3. The bar is connected to the profile by means of a self-tapping screw, which is screwed into the maximum protruding point of the wave.

Making a roof ridge from a profiled sheet

The device of a roof from a professional flooring also implies the presence of a ridge, the design of which occurs at the final stages of installation.

Ridge elements are also laid with an overlap of 200 mm. With the help of self-tapping screws, they are attached to the upper corrugation. Self-tapping screws should be selected, taking into account the height of the profiled sheet wave. And the step to be followed when fastening is 300 mm.

If the roof has a slight slope, then the use of a sealant will be relevant. Thanks to it, it becomes possible to eliminate the ingress of moisture in the event of an oblique direction of precipitation. Between the ridge and the seal, the right solution would be to leave a small ventilation gap.

It is best to start the installation of the ridge from the side of the roof that is less exposed to rain.

The importance of proper installation

The service life of the roof of the house can be maximum if the corrugated roofing is made according to all the rules for competent fastening of sheets and factors such as:

• possible influence of wind;
• probability under the influence of high temperatures of expansion in the center of the sheet;
• sufficient density at the connecting points of the profiled sheets.

Compliance of the material fastening process with all existing standards is achieved by using certain sizes of self-tapping screws for each type of work. For example, the connection with the crate should be provided by self-tapping screws 4.8x35 mm, but the fastening of the ridge will not do without longer self-tapping screws - from 80 mm.

Easy roof repair

One of the clear advantages of such a roofing material as corrugated board is the speed and ease of its installation and dismantling. Therefore, when repairing a roof from a profiled sheet, there are no particular difficulties.

In most cases, roof repairs can be limited to removing one or more sheets that are unsuitable for further use and replacing them with new ones. If the damage is very minor, then replacement of the sheets may not be required - in this case, patching will be enough.

When choosing roofing material for the roof of your house, you should Special attention turn to corrugated board. After all, this is not only a convenient option for installation and further operation, it is also a material that has an attractive appearance and affordable price.