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What is the name of the junction of the roof to the wall. The connection of the roof to the wall of the house. Roofing from corrugated board

The technology of pitched roofs is quite complicated due to the fact that the roof has a complex geometric shape, in addition, chimneys and ventilation shafts are removed through its surface, which violate the tightness roofing.

For additional waterproofing of places where the roofing material comes into contact with vertical surfaces, an abutment bar for the roof is used. This term refers to additional elements for corrugated board, metal tiles and soft roof, which, which are fixed over these coatings, to protect the joints from moisture penetration and leakage. In this article, we will tell you what the junction strips are, what they are made of, and how they are installed.

Usually, additional elements occupy no more than 3% of the area of ​​\u200b\u200bthe pitched roof of a private house, however, it is from them right choice and application depends on the tightness and reliability of the design.

The junction bar refers to the additional elements of the roof and is used where the area must be protected from moisture penetration due to the fact that it is adjacent to a vertical surface.

It is used where the roof is connected to a ventilation duct, chimney, building wall, cornice board. The plank physically covers the fracture site so that water does not get there. The additional elements of the junction bar have the following functions:

  • waterproofing. The junction bar is laid at the junction of the roof with vertical surfaces in the first place, in order to protect this area from rain or melt moisture. It is in such places that the most snow and water accumulate, therefore, without additional waterproofing, leaks are almost inevitable.
  • Thermal insulation. The edges of the roofing material cannot fit snugly against the surface of the walls of the house or pipes passing through the roof, so tangible heat loss occurs through these cracks. To prevent the penetration of cold, you can use metal corners that will close the gaps.
  • aesthetic. In places where pipes pass through the roof, a rather unaesthetic, sloppy joint remains, the junction bar can eliminate this defect by improving appearance finished roof.

Remember! Experienced roofers claim that more than 90% of leaks after laying new generation roofing material are due to improper organization of junctions. Although you can fix this problem with simple do-it-yourself corners, you will find tips on how to do this and a useful video in this article.

Types of planks

The variety of roofing materials is very large, however, there is also a wide choice of additional elements for organizing and sealing junctions. Depending on what kind of coating is used, the slats can be soft or hard.

A sheet of corrugated board or metal tiles has a rigid shape, therefore, corners made of galvanized steel with a paint or polymer coating are used for them. Soft roofing devices are performed using elastic, soft strips, which are fixed at the junction.

One rule applies in this matter: to seal the joint at the junction, strips of a material of the same type as the roof itself are used. According to the installation technology, the following types of strips are distinguished:

  1. Upper. The upper junction bar is fastened over the roof with self-tapping screws, like the roofing itself, or glued with a sealant.
  2. Lower. The lower bar is brought under the roofing, fastening in this case occurs with the help of sheathing boards.
  3. Decorative. A decorative apron is worn over the bottom bar to give a more aesthetic and neat look to the joints.

It is interesting that earlier, when there was no such variety in hardware stores, the junction bar for metal tiles or corrugated board was made from scraps of this roofing material.

Imagine how handicraft such works looked, and such slats performed their functions poorly. Now, of course, you can make additional elements with your own hands, however, it is not much more expensive to purchase them, and they can be matched to the color of the rest of the roof elements.

Installing abutment strips is a fairly simple process that requires careful following of instructions and precision. For waterproofing pipe passages through the roof surface of metal tiles and corrugated board, a structure is used that has 2 parts - lower and upper.

The installation process is performed in the following order:

  • Before laying the roofing material, an internal factor is installed, consisting of 4 separate corners.
  • First, the upper edge of the junction is formed, that is, the bar located under the pipe. Then, with the help of self-tapping screws, the end strips are fixed with an overlap. Lastly, a part located above the pipe is installed, that is, the installation of the lower bar of the roof junction is carried out.
  • The corners are attached to the crate with the help of self-tapping screws, and the upper ones are pressed against the vertical surface of the pipe or wall.
  • All joints are recommended to be thoroughly passed with a fire-resistant sealant on a moisture-resistant basis in order to improve waterproofing.
  • After that, the roofing is laid.
  • When the roofing is laid, the top apron is installed, also from all sides in the same order, fixing its elements. The upper junction bars, unlike the lower ones, are a flat corner without bending the edges of the punk.

Note! If you assemble the structure correctly, the junction will be organized as tightly as possible, there will be no gaps and joints into which water can flow. If, in order to save money, choose between two aprons, the inner one provides better protection from leaks.

Requirements for junction bars

Internal and external waterproofing factor reliably protect against moisture penetration under roofing material, dampness of thermal insulation and rotting of the elements of the truss frame.

So additional elements, the purchase of which will cost less than 3 thousand rubles, can extend the life of the roof. However, for the system to be effective, the following requirements must be met:

  1. To make the aprons last longer, you need to choose strips from the same material as the roofing itself. That is, for roofs made of metal tiles and corrugated board, galvanized steel corners are used, for shingles and roofing material - strips of the same rolled material on a self-adhesive basis.
  2. If you choose additional elements made of galvanized steel, give preference to products with a paint or polymer outer coating that protects the product from mechanical damage and corrosion.
  3. Pay attention to the width of the mounting shelves of the product. When choosing adjacent planks, the size must be taken into account. The wider the corners, the better they protect against moisture penetration.

Adjacency bar dimensions

Important! The organization of the junction of the soft roof is organized in a completely different way. In order not to make holes in the roll material with self-tapping screws, the bar is glued to one side of the wall, and the other side is on top of the roofing material.

Although the work on the design of junctions with vertical surfaces and penetrations of ventilation and chimney pipes is quite simple, there are small tricks that allow you to do it faster and better. Experienced craftsmen give the following advice:

  • Corrosion-resistant galvanized self-tapping screws are used to fasten the planks. rubber seals, which protect the mounting hole from moisture leakage.
  • No need to use too many screws, because each fastener reduces the tightness of the roof.
  • When arranging an apron, consisting of two parts, the lower element can be made of elastic material, and the upper one of galvanized.
  • Sealant should only be applied to a dry, clean surface. In addition, silicone sealant is poorly applied to vertical polymer surfaces, this must be taken into account.

Video instruction

Particularly susceptible to the adverse effects of moisture are those places on the roof where they touch the wall. This means that at these points, the protection and sealing of the joints must be carried out at the proper level. All buildings adjacent to the roof:

  • chimneys;
  • walls;
  • visors;
  • awnings, etc.

Should be arranged according to a pre-made plan. These areas are especially prone to accumulate moisture, as well as debris from branches, leaves, trees, etc. winter time, in places where the roof adjoins the wall, under the action of snow, the loads increase, and there is an additional danger of its flow.

When the arrangement roof structure the roof has already been completed, you need to immediately equip it with the following coating:

  • we make waterproofing;
  • counterlattice;
  • crate;
  • we equip with a sealant;
  • installation of metal tiles;
  • install wall profile;
  • apply sealant.

Connection Vulnerability

These are rather vulnerable places because garbage abandoned by air currents accumulates on them. And if you add to this precipitation in the form of rain, snow, you get a rather ugly picture. This adversely affects the coating, and disables not only the waterproofing material, but also the roofing material.

Periodic freezing and then thawing of water, first leads to deformation of building materials, and then to their complete destruction.

Therefore, this is so important, and it is necessary to deal with this during the preparation of project documentation, for example:
  1. When do you plan to build brick house, then the project will provide for a special visor. It should be about half a brick long, this will protect the junction of the roof and wall structure.
  2. Builders already at the stage of laying bricks can make a special recess. At the end, sheets of roofing material are brought in.

The sealing of the junction is carried out using different technologies and building materials.

Types of adjoining to the wall

Conventionally, the docking of the roof and walls is divided into two types:

  • lateral;
  • top.

In both versions: butt strips:

  • PS-1;
  • PS-2.

Let's analyze the connection of the junction of the roof with the wall, if the rafters are already mounted:


  1. We do the installation of metal tiles, with a mandatory gap, for ventilation.
  2. In the wall, we lay a horizontal ledge (strobe), 2-3 cm deep.
  3. On a strip of joints, a sealant (PS-1) is first glued, it is placed close to the wall, a horizontal strip is inserted into the groove.
  4. Fasten with dowels.
  5. Seal the hole with sealant.
  6. The junction bar is strengthened with self-tapping screws.

profiled metal

All coatings are made with a mandatory clearance for ventilation.

  1. If the sheer wall is brick and plastered, then a recess is made with a depth of up to 3 cm, parallel to the roof.
  2. When adjacent to a metal roof, a steel apron is inserted into the recess. pretreated with a sealant.

The bar is fixed from below with self-tapping screws. You can do the installation with two aprons at once, using the overlay method. In this case, the wall is not ditched:

  1. Strengthen the apron with dowels.
  2. Place the lower bar, hook it with the upper, locking fastener.
  3. The lower bar is equipped with clamps and self-tapping screws, they are attached to the roof.
  4. Seal all joints with sealant.

From soft and ceramic roofs

Start work:


  1. Make a shtraba, 300-500 mm high, from the surface layer.
  2. Along the entire perimeter, we strengthen the bar, preferably of a triangular section. This is necessary for a smooth transition and the formation of a barrier in case of future possible water leakage.
  3. Clean the place of contact with the roof from all dirt, treat with "Primer".
  4. On the soft components, a beam is superimposed.
  5. They are glued with mastic (bituminous), but it is also possible to seal the strip for installing the valley. This is roll material, called the valley carpet, with a width of up to one meter.
  6. It is installed starting from the stab on the wall. And the other end is laid on the horizontal plane of the roof, with a width of at least 200 mm.
  7. Press a little, smooth well with a rubber roller. Large crumbs, on glued joints, clean well.
  8. At the end, they are fixed with a clamping bar (90-130 mm) with a bend that fits into the groove when installed.
  9. Fix it with dowels, using rubber washers to the wall.

From a rolled roof

It can be done with different technologies. Traditionally, it is placed with a mandatory overlap on a vertical plane, and fastened with slats. This method is suitable for flat, pitched roofs. For durability we do:

  • roofing material is laid with a slight overlap on the wall of the building (height 20 cm).
  • rails are fastened with dowels.
  • all joints are coated with sealant.

Disadvantages: Possibility of damage when laying or cleaning the roof. To prevent this:

  • The corners are filled with a triangular-shaped bar, or with an additional layer of thermal insulation.
  • They make a design: one sheet of cotton insulator and a bar, rectangular in shape, are installed under the insulation. Such a roller will protect the roofing material from tearing, and slightly insulate the junction.

Flash method

The method is quite simple, and it is quite possible to do it yourself. Various areas of junctions are covered with hydrophobic mastic with a reinforcing joint - "Geotextile". If we apply this technique, we end up with:

  • absolutely tight joint;
  • will not lose its unique qualities for a long time.

Before applying a layer of mastic, prepare the surface:

  1. If rolled materials were previously used, you need to clean them from sprinkling.
  2. Polyvinyl chloride, must be well degreased.
  3. Concrete, treat with Primer.
  4. Brickwork, plaster and dry thoroughly.
  5. Clean all areas of future joints from all contamination.
  6. Large chips, cover the cracks.

For treated surface:

  • apply a layer of mastic;
  • put "Geotextile" on top.
  • again cover with mastic.

After applying the next layer, we are waiting for the complete drying of the previous one. This usually takes 5 to 20 hours. Apply the color you want on top. Approximate consumption:

  • mastics: up to a kilogram, per m².
  • "Primer": up to 0.4 kg, per m².
  • "Geotextile": before purchasing, they make a calculation.

Connections to the chimney and pipe

Roof to chimney connections:

  1. We can treat the desired surface with a brush and a roller, applying a thin layer of mastic on it, and immediately lay the Geotextile, let it dry.
  2. From above we cover with the next layer (drying time depends on temperature, but on average from 4 hours to a day).

Mastic has in its composition - polyurethane, it:

  • very plastic;
  • tolerates equally well low temperature and high from (-38 ℃ to +70℃);
  • such waterproofing mastic is very durable, service life, not less than twenty years.

Connecting the roof to the chimney:

The chimney is passed through all the ceilings and the roof. This means that it is necessary to seal all places where the pipe passes, this must be done very carefully:

  1. The crate near the pipe, we settle it horizontally.
  2. A waterproofing layer is laid, one edge must go onto the pipe, the second under the roofing.
  3. In the place where the sheathing board, or timber, fits the pipe, a bar (triangular) is placed, only directly under the waterproofing.
  4. In the place where the waterproofing finds itself on a sheer pipe, its edge is treated with a sealant. And the top is closed with a metal plate.
  5. You can simply fix it with dowels or go into the shtraba and pour sealant over everything.

Sealing and waterproofing

Sealing


New modern rolled materials with unique properties have appeared. They will not only significantly reduce labor costs, but will allow to unify the sealing of any of the most inaccessible junctions. They are characterized by:

  • strip width: 270-300 mm;
  • length: five meters.

Produced from corrugated foil: lead and aluminum. followed by application of adhesive. Can be seen in stores under the brand: Wakaflex, FlexStandart, Easy-form, etc.

They are used to repair old as well as new buildings. Metal corrugation may melt and therefore be able to seal all hard-to-reach joints on the roof in the same way:

  • serve more than 20 years;
  • also produce multi-colored coatings;
  • if melted, it will increase by more than 50%.
  • withstands large temperature differences: from -40 °C to +100 °C.

The upper edge of the tape is attached to the wall with a Waka bar. It is made of aluminum, pre-painted. A shtrab is not needed, the upper edge must be coated with sealant.

Waterproofing

Waterproofing more often than you want, becomes unusable. When arranging it, liquid rubber is used, applying it manually if the area is small. On vast areas, a technique is used: cold airless spraying of rubber.

When covering the surface with it, it immediately accumulates the desired thickness. And forms an elastic, seamless, and very durable, monolithic coating. Drying, firmly sticks together with the base.

Adjacency repair

You can take bitumen and roll materials for repair. But you can use more modern means: reinforcing geotextiles and mastic. Performance repair work, prepare the place:

  • roll coating, clean well;
  • concrete, process with "Primer";
  • polyvinyl chloride, degrease;
  • brick building, plaster, then dry.

Cover cracks, chips, spread mastic in two stages, when it dries, put reinforcing geotextile.

Repair work of a soft roof: self-tapping screws, lath

The cover rises by (20 cm) and is fastened with a rail with self-tapping screws, but always with rubber washers. All joints should be thoroughly cleaned, primed and coated with sealant. Triangular cross-section bars impregnated with an antiseptic are placed. And lay the insulating layer.

Damage, to the funnel of the internal drain

  1. Remove the cap from the cone of the funnel.
  2. The canvas of the roof itself is heated with a blowtorch and folded back in turn.
  3. Remove fiberglass, pull out the bowl.
  4. The hole is cleaned, the edges are smeared cement mortar and put the funnel bowl back on.
  5. Pasted over with new fiberglass, pre-impregnated with glue and connected to the roofing.

Leaks at the parapet

In places of damage, gently heat with a lamp. Divide the sheets, dry, glue again, coat with mastic on top. Immediately cover with an apron, fix the top. This is done with nails, hammering them into a rail embedded in the wall.

Cracks, chips, in places where exhaust pipes come into contact

Clean up the place of work:

  • apply a fillet from a polymer solution;
  • apply a thin layer of mastic;
  • stick a piece of fiberglass;
  • smear again on top (1 mm).

Leakage at the interface with the vertical plane

We do:

  • warm the ends of the canvas with a blowtorch, remove the fasteners, carefully bend;
  • make a fillet out of cement and sand or expanded clay concrete, with a radius of 10 cm;
  • dry, re-prime, glue the bent canvas again one by one, fix the ends, according to the design of the house.

The impenetrable adjoining of the roof to the wall is one of the main factors for the preservation of warmth and comfort in the house, and the longevity of the entire roof structure.

For reliable protection of the roof from the weather, its covering should be properly equipped. It must be made as tight as possible. The adjoining of the roof to the wall should be carried out using methods and materials that correspond to the type of coating. This will ensure long-term operation of the roof as a whole. It is also important to consider the type of junction - top or side. Depending on this condition, different strips for fixing the roof are chosen.

The need for sealing joints

The junction of the roof covering to the wall is one of the most vulnerable parts of the roof. This is where garbage collects regularly. He is carried to the roof by the wind. Garbage, in turn, has the ability to accumulate moisture, which has a destructive effect on the roofing material. Waterproofing may also suffer - the water will constantly thaw and freeze. Most of all, the risk of leaks near the walls of the building increases.

To ensure reliable sealing of the roof, it is necessary to know the principles of arranging the junction points and take them into account even during the design of the house. For example, in the case of a brick building, you can make a visor over the future joint in half a brick. Also, when laying, you can leave a recess into which the edge of the roofing material will later be inserted.

For sealing joints, you can use the most different materials. The technology for performing work is determined taking into account the type of roof. You can distinguish the top and side abutment. In each case, butt strips PS-1 and PS-2 are used.

Roofing from profiled sheet

The adjunction of a metal roof is much easier to arrange than in the case of other materials. Profiled sheet is a simple and reliable coating. The main thing to remember is that the vertical elements must be at a certain distance from each other (there must be a gap between them). Such a space will provide air circulation in the roof cavity.

Any junction of the roof to the wall is arranged according to a certain technology. Most often, metal elements are used as a repair tool. A wall apron is carried out after the wall is shredded. To do this, at a height of 20 cm, a gutter 3 cm deep is made.

The edges of the element are treated with a sealant. After that, it can be installed in the strobe. The lower part of the element is pressed against the roof with fasteners. The self-tapping screws that fix the apron are equipped with rubber gaskets, which helps prevent moisture from entering under the waterproofing. After installing the apron, the strobe is sealed with concrete mortar.

Sometimes you can do without a recess in the wall. To do this, you need to install a double apron. His upper part attached to the wall with dowels. After that, the lower element is placed under the base. Such an apron is equipped with a special locking device that ensures maximum connection reliability. In addition, clamps are located on the bottom of it, which fasten the part to the roof.

Important! All areas that will be in contact with each other should be treated with a sealant.

When choosing ceramic tiles as a roofing material, the junction points must be erected from a tape. It is most often performed on the basis of aluminum. During installation soft material able to take any shape, which ensures reliable contact with the roof surface. Hot bituminous sealant must be poured into the seam. After it hardens, all cavities and cracks will be firmly sealed. To equip the passage through the roof, you will need an elastic corrugation and bituminous mastic.

Roll roofing

The places where the wall and the rolled roofing material converge can be sealed in several ways. One of them is the use of a wooden plank. The rolled material is pressed tightly with it, and then fixed with special self-tapping screws equipped with rubber tips.

The junction of the roof to the wall should not be higher than 20 cm. The joints of the plank with the wall must be covered silicone sealant. To avoid depressions and breakthroughs, install in the corners between the wall and the roof additional element from wood, and then - thermal insulation.

The result is something like a roller. Such a product is able to maintain the integrity of the rolled roof, which increases its service life. Also, due to this device, the joints are additionally insulated. When arranging warm roof all layers of the pie go on the wall. Then they are all covered with a finishing material. The passage of the chimney through the roof is carried out using elastic rubber elements.

Today, they often use a relatively new way of arranging the adjoining of the roof to the wall. The surface is treated with a sealant, a reinforcing geotextile layer and additionally with a sealant. Using this method creates the most durable connection. Anyone can install such a connection. The main thing is to choose the right materials.

flashing

The method is relatively easy to use. Its essence is as follows:

  • first, mastic is applied to the surface;
  • after that, geotextiles are glued to it;
  • from above, the abutment is again treated with mastic.
Each layer is applied only after 3 hours after laying the previous one. The result is a completely sealed connection. It will serve properly for more than 20 years, withstanding operating temperatures from -40 to +75 degrees.

To get a quality result, you will have to follow a few rules:

  • Before starting work, clean every surface of any debris and dust. If there is a roofing dressing on the material, it is cleaned off at the places where the mastic is applied.
  • Brick walls should be plastered and wait until the applied layer is completely dry. Concrete walls are treated with a bituminous primer.
  • Each unevenness on the pasted surfaces should be removed, and the chips should be repaired with a sealant.

This way of arranging the abutment increases durability roofing cake and truss system.

Universal way

The use of new roll materials makes it possible to simplify and speed up the sealing of joints. The amount of labor costs is also significantly reduced. The result is an absolutely tight connection, regardless of the configuration of the roofing. Such materials are often made of aluminum foil or corrugations, on which an adhesive composition is applied.

Such materials are used both for adjoining devices both during the construction of new facilities and during the repair of old ones. They are produced in the form of strips, which are easy to paste over the right places.

The composition from which such materials are made is able to withstand a temperature range from -50 to +100 degrees. The upper edge of the tape is attached to the wall using a special Waka strip, which is made of painted aluminum. The strobe is not performed. The top edge of the plank is insulated with sealant.

Flat roll roofs

Waterproofing the adjoining flat roofs, which are covered with rolled material, has to be done quite often. This is due to the strong impact of precipitation on the roof. Today, liquid rubber is increasingly used for this. It can be applied by hand or by cold airless spray.

Such material is successfully used both for newly built roofs and as a repair tool. During the application work liquid rubber pay attention to the thickness of the coating. After drying, a rubber-like membrane is obtained, which is characterized by increased wear resistance.

The passage through the roof is often equipped with an elastic penetration. It is made from rubber. Such a product is a round pyramid with several steps. Elastic penetration can be installed on any roof covering. In addition, it withstands significant temperature changes (from - 50 to +130 degrees) and the effects of precipitation.

Results

The choice of materials and method of arranging the adjoining of the roof to the wall depends on the type of roofing. For example, in the case of a profiled sheet, it is necessary to carry out a strobe in the wall. If the roof is covered with rolled material, it is enough to fix it at the junction with a wooden plank and seal it with sealant. Also, special self-adhesive tapes are used as a repair tool. They perfectly withstand temperature extremes and do not let moisture through. The passage in the roof is equipped with elastic rubber elements. You can do all the work on arranging the junction of the roof to the wall with your own hands - the main thing is to choose high-quality material.

  • Each homeowner strives to make his house different from others with its beauty and originality. How the house will look externally sometimes depends on such details that you won’t notice at first glance. But it is they who form the uniqueness of the external appearance of the dwelling.

    Parapet for flat and pitched roofs

    One of the seemingly minor details on which the reliability and aesthetics of your home depends is the parapet on the roof. This is not a very high element, resembling a small wall, it serves to protect and enclose the roof. This design is suitable for any type of roof - both flat and pitched. In the latter case, it starts from the cornice, covering part of it, and at this time the other part rises on the cornice and is perfectly visible, but the roof flat type the parapet hides completely. The shape of such a fence in the upper part - and can be horizontal or pitched. In any case, you need to keep in mind that the parapet on the roof can also have a non-standard shape.

    To protect the fence from the destructive effects of atmospheric phenomena, a so-called apron is installed on top of it, which is made of a metal profile, galvanized or copper. In its design, the presence of special droppers is mandatory, through which water will be drained from the building. Thanks to the drippers, the ingress of water on the fence structure is practically excluded.

    Often, for concrete or brick fences, a metal apron is replaced with concrete slabs or decorative rock laid on top of them.

    At any roof structure there are areas that are particularly dangerous in terms of water leakage and corrosion. For example, the installation of a steel apron is carried out through fixing crutches, so all attachment points must be processed, the junction of the roof to the parapet, as it is especially prone to water leakage, must be reliably sealed. Sealing is also required for joints between concrete slabs laid on top of the enclosing curb.

    Attachment of the roof to the parapet

    Such an abutment is performed by joining the roof and the parapet with a side or front connection.

    Along the fence, niches and curtains are provided for the installation of aprons, for example, from galvanized sheets of roofing metal, with subsequent fastening. The upper part of the metal sheets is inserted into these recesses. It is possible to use black roofing steel for these purposes, but only if it is painted twice on both sides using hot drying oil. The need for niches and blinds in the connection device arises due to the fact that, as a rule, one roofing sheet of one type or another is not enough to ensure a reliable and tight fit. For example, due to its not quite flat vertical part or due to the destructive effects of precipitation, temperature changes and others, the material may lag behind the curb.

    Connecting device

    The technology for arranging these sections, depending on the presence of curtains or niches, is somewhat different.

    When the top of the galvanized or black sheet for roofing is installed in a niche, its height must be at least 10 cm.

    In the case of installation in a curtain, it is sealed with a solution of cement and sand, which serves as a reliable protection against precipitation, for example, protects the curtain from snow.

    Joint leaks are usually covered with roofing material.

    At a distance of 100 cm from each other, antiseptic corks made of wood are installed along the enclosing structure, and an apron is laid on them. Pressing the edges of the apron more tightly will help wood bars, having a triangular section, previously fixed to the corks

    The elements of the apron are laid in the direction in which the flow of atmospheric precipitation is directed with a minimum overlap of 0.10 m. The reliability of the assembly increases if the joints of the folds. The sections of the interface between fences and flat roofs must be additionally waterproofed, and in several layers. The main waterproofing, made of mastic, is covered with reinforcing glass material. It is mounted with an overlap of 15 cm, pressing through the intermediate side to a vertically directed plane. Then, this whole layer is covered from the bottom up with mastic or emulsion. After allowing the mastic or emulsion to cool, the surface of the first layer is covered with the second. To prevent the layers of mastic from slipping, they are fixed and protected from moisture with a metal apron.

    To fix the mastic layer of mastic, a metal clamping bar is used, which is nailed with dowels. Before that, the upper edge of the protective apron is brought under it, the elements of which are connected by a single fold.

    The junction with the parapet is also equipped on the roof with slopes, forming a valley. First of all, the base is primed and rolled fiberglass is spread over it. The rolled canvas is laid in the following sequence: the top of the pitched side, part of the valley horizontally. A layer of mastic or emulsion is applied to the inclined slope of the valley with at least a strip of 10 cm.

    Connection on the example of a soft roof

    Reinforced is required at the junction points. Between the fence and the roof at an angle of inclination of 45⁰, an additional concrete rim is arranged. This greatly facilitates the laying of roll materials for waterproofing. A simple roofing material is glued to the required areas using hot bitumen mastic. After the first layer has hardened, the second layer is applied to it. At the same time, the outer one is fixed with a metal bar, a special apron is attached to it.

    Dowels are used to fasten it, and after sealant treatment, paint is applied, which must be weatherproof, providing protection for the assembly.

On roofs, the line connecting the roof to the wall is an extremely important point. Snow, rain, small debris, fallen leaves accumulate there. This causes damage to the insulation and the penetration of moisture under the roof, and sometimes inside the room, which entails repair of the roof. Therefore, in order to avoid such problems, a reliable junction is equipped along the docking line.

Proper roof connection

The main function of the roofing is to protect the premises from external influences. The microclimate inside the building and the safety of the roof itself depend on how competently the adjoining of the roofing material to all vertical surfaces is made.

Materials used

Over the course of its service life, the roof covering expands and contracts due to temperature changes, is subjected to various atmospheric influences, as well as other physical and chemical influences. Therefore, it is important not only to choose the material for covering the roof, but also to mount it correctly. The most suitable for sealing the junction of the roof with the wall are:

Mounting the junction

Each coating has its own method and material for joining the roof to the wall. But for any option, the rule applies: the junction must be continuous, solid, made of quality materials. The most commonly used construction methods are:

  • installation of butt strips PS-1, PS-2, aprons with wide brim overlaps;

    Butt straps of jumping have a different configuration

  • installation of corrugated aluminum or copper tape with subsequent sealing of the edges;
  • corner installation between roof and wall wooden beam triangular section, which is then covered with a soft roll material with a wall entry (waterproofing lining);

    Waterproofing at the junction of the roof to the wall is always performed, starting from the lower layers, and then laying the upper ones, blocking the lower joints with them.

  • multi-layer mastic treatment with geotextile strips.

The main difficulty of the device of such a contiguity is to achieve structural strength. Indeed, due to the difference in temperature deformations of the materials of the roof and the wall, this unit collapses over time.

Single apron

Step-by-step technology for installing and fastening a metal apron-shed:


It is also possible to install without shtrobleniye. But then a double apron is used. Or the junction of the roofing material with the wall is reinforced with a metal pressure strip, which is shot with dowels from a construction gun.

Aluminum adhesive strip

Such a strip is easily stretched due to the corrugated structure and tightly fits the relief surfaces.

With its help, the junction of the roof from ceramic tiles, slate and similar materials is mounted. And also it is convenient for lateral adjoining.

Of particular difficulty is the lateral junction of the roof

How to stick aluminum corrugated strip:


The advantage of the method is its relative simplicity. This does not require special knowledge, you can do this work yourself.

And also other modern tape materials are easy to use. For example, when working with piece roofing materials (tiles, roofing tiles, etc.), a self-adhesive lead tape is suitable, which provides sealing of the joints. It is made one-sided from painted lead and rolled into rolls.

Lead adhesive tape for sealing the joints of the roof with the wall is also necessarily closed along the upper edge with a pressure strip

Soft roof connection

For the installation of the junction of the soft roof, rolled materials of increased strength are used. The vertical surface must be smooth, without cracks and chips, to prevent moisture from entering under the roofing carpet. The technology of overlapping the junction of a soft roof to the wall:

  1. Plaster the vertical surface of the junction to a height of at least 30 cm, wait until it dries completely.
  2. Along the line connecting the roof to the wall along the entire perimeter, fix a beam 5 × 5 cm with a triangular section. It is necessary to avoid tearing of the material and to ensure that water drains. But instead of a beam, you can make a cement-sand screed with the same angle of inclination.
  3. The roof covering should go into the junction and rise slightly above the horizontal plane. Clean the part of the roofing on which the reinforcement will be glued, remove granite chips from it for a better fit of the material. The width of this part on the horizontal surface of the roof is arbitrary, but not less than 15 cm from the line of the beginning of the rise.

    The simplest option for strengthening a soft roof at the junction with the wall includes only one layer glued on top of the main roofing material.

  4. Treat the junction with a primer.
  5. Lay a section of the roll coating on the beam, leading to a vertical surface along the height of the plaster.
  6. Smooth out and stick to the wall bituminous mastic or sealant.
  7. Glue the lower part to the roof with mastic or fuse (depending on the material chosen).
  8. Fix the upper edge with a metal junction bar, fixing it on the wall with dowels.

    A bar of triangular section is installed along the connection line of the roof with a plastered wall

  9. Treat the joint with sealant.

This method is suitable for strengthening the contiguity on pitched roofs. And on flat roof several layers are laid.

Two layers of roofing carpet are alternately interspersed with two additional layers of reinforcement that go to different levels of the wall

The second layer on the wall should overlap the first by at least 5 cm. This will help prevent water from seeping under the roofing material. This design is considered the most durable for roll roofing and soft tiles.

Video: device for connecting a flat roof to vertical structures

Abutment sealing

Flashing is a modern way of connecting a roof to a wall, which provides reliable sealing of the joint. It is based on the use of geotextiles and flashing mastic with waterproofing properties.

flashing

This method is used only on dry surfaces. If it is not possible to dry the base, then it is pre-treated with a primer. You can use the method for any roll coatings and walls made of any material.

The flashing method provides reliable waterproofing of the junction on the roof

The sequence of application of the flashing method:

  1. Thoroughly clean the vertical and horizontal surfaces at the junction.
  2. Apply mastic with a brush or roller: the width of the layer should not be less than 25 cm.
  3. Glue a strip of geotextile: evenly, without folds.
  4. Let the mastic dry - it will take from 3 to 24 hours.
  5. Cover with a second layer - overlapping the first by at least 5 cm to seal the edges of the geotextile.

After the second layer has dried, a durable, strong and reliable waterproofing compound will be obtained.

Due to the properties of mastic, such a coating becomes dense, but elastic and flexible, which ensures resistance to mechanical and climatic influences. The connection withstands the temperature range from -40 °C to +75 °C.

Joint sealing

To prevent water from seeping under the visors, fit strips and roll material, it is necessary to carry out sealing along the line of their joining with the wall. It consists of the following steps:


The nuances of adjoining various types of roofing to the wall

The installation method should be considered when designing the building. Since often the construction project has to include a special laying of bricks in the upper part of the walls with small recesses.

Brick or concrete wall

When erecting a brick wall, it is worthwhile to provide for a visor protruding half a brick above the surface. In the future, it will serve as a cornice that protects the junction. The same role is played by the "otter" - a recess, a quarter of a brick deep. Soft roofing material is introduced into it, then a bar is installed. The junction points of roofs covered with other types of roofing are covered with metal sheets and fixed in the recess of the wall.

Visor or otter in brickwork Provides a secure seal

brick and concrete walls before installation, the junctions are leveled with a layer of plaster. If the visor or recess was not made during construction, then the groove under the bar is ditched with a jackhammer or cut out with a “grinder”.

Relief roofs

The adjunction of the roof, made of hard embossed materials, is carried out using special strips, aluminum tape or aprons with a wavy bottom edge.

The junction of the relief roof is carried out using a metal strip with a certain angle of inclination

Video: a device for adjoining a roof from a profiled sheet to a wall under a visor

metal tile

When laying sheets of metal between the wall and the roof, a small gap is left for ventilation of the under-roof space. In this case, the junction is made with a metal bar, the lower edge of which is attached to the tile with self-tapping screws.

One of the ways to seal the junction with the pipe over the roof is the use of aluminum corrugated strip

Before fastening the clamping strips, a heat-insulating belt made of asbestos is installed on the pipe. The strips are first attached to the bottom of the pipe, then to the two side ones, and finally to the top.

A double abutment is first made around the pipe, and then clamping strips are attached

To the lower bar under the roof, a tie for water drainage is additionally mounted, which is displayed in the valley or in the drain on the eaves. The lower apron is attached to the crate, the upper - to the roof. Joints are sealed with heat-resistant sealant.

A tie is attached to the wall profile to drain water

Video: joining a chimney to a cement-sand tile roof

Parapet

Before the assembly of the node, the parapet is insulated with mineral wool and closed with particle-cement boards or flat slate. The adjunction of the roof to the parapet above 70 cm is carried out in the same way as to the wall.

If the parapet is lower, the roofing material is brought onto a horizontal plane with an approach to the facade. A metal casing is installed on top or cladding is made with parapet stone.

Laying a soft roof with the introduction of material on the parapet will allow the roof to serve for many years without problems