The junction of the roof to the parapet drawing. Roof parapet and its junction. Device and design features

• 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 they are what make it unique. appearance dwellings.

  Parapet for flat and pitched roofs

  One of the seemingly minor details, on which the reliability and aesthetics of your home depends - a 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 destructive impact atmospheric phenomena on top of it, a so-called apron is installed, 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 plates or decorative stone 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 roofing metal, followed by fastening. These recesses lead upper part metal sheets. 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 curtains when connecting the device arises due to the fact that, as a rule, one roofing sheet one or another type to ensure a secure and tight fit is not enough. 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 mortar of cement and sand, which serves reliable protection from 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 laying of the elements of the apron is carried out 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 flat roofs be sure to additionally waterproof, 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. Stacked rolled canvas 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.

parapet apron- one of the most important roofing elements capable of high-quality and long-term protection of speakersparts of the building exposed to the damaging effects of precipitation. Standard parapet aprons - products made of galvanized steel sheet, having a P-shaped section. They are installed on roof parapets, fences, and other protruding sections of brick, concrete, foam block.

For the production of parapet aprons, sheets and rolls of galvanized steel are used, with a thickness of 0.45 - 1.2 mm. The determination of a particular thickness of the metal is made by the manufacturer's engineer on the basis of the calculation. For the calculation, it is necessary to determine the parameters (dimensions) of the apron, the type of substructure, etc.

The apron is fastened to a pre-installed subsystem consisting of crossbars installed with a step of no more than 600 mm.

VARIETY OF PARAPET APRONS

There are a wide variety of variants of aprons and basically it is selected for each object individually, based on the size, direction of the drain, and other parameters. The most common options for aprons are listed below.

"FP-1"	"FP-2"
"FP-3"	"FP-4"

DETERMINING THE SIZE OF THE APRON

The first important step in installing aprons is to measure. For many, this procedure may seem complicated, but it is not, and we will try to consider in detail the specifics of this procedure.

1) Determining the width of the sheltered area

Roof parapets have a certain width, basically equal to the thickness of the walls of the building. If the facades of the building are made using the technology of ventilated facades, then to determine the width of the sheltered part, it is necessary to sum up the width of the concrete part of the parapet and the width of the protruding facade system with lining.

If the facades are made according to the technology " wet facade» then it is necessary to add the thickness of the facade cake to the width of the concrete parapet (insulate, plaster, finish coating). for walls open walls(without insulation and cladding) the width of the sheltered area is the net width of the parapet.

2) Determination of the dimensions of the side shelves (drains)

After determining the width of the sheltered area, it is necessary to determine the dimensions of the apron drains (side shelves). The size of the side shelves of the apron is determined individually, based on the wishes of the Customer and the selected subsystem option.

An important aspect of determining the lateral dimensions is to take into account the height of the future subsystem, the required slope. Basically, side shelves are made from 70 -120mm.

3) Determining the length of the product

The length of the product is determined based on geometric parameters sheltered area (the number of straight sections, corner). The best option The length of one apron is 2500mm.

4) Number of items

For correct calculation required amount aprons, it is necessary to measure the total perimeter of the sheltered area. In the resulting size, it is necessary to take into account the overlap of products, the optimal overlap of one apron on another is 25-40mm.

So, in order to calculate the final width of the product, you need to take the width of the covered area, add 50 - 70 mm. (width margin for the frame) and add 10 mm to the slope (difference). The slope should mainly go towards the roof, an acceptable difference is 30-40mm.

INSTALLATION OF PARAPET APRONS

There are several options for installing covering elements on parapets.

• Direct fastening to concrete (brick base)
• Fastening to a load-bearing substructure

The choice of installation option is made by engineers based on the needs of the customer and site parameters.

Consider in more detail the option of installing aprons on a subsystem (frame):

The frame can be various designs and types, mainly for the assembly of the subsystem, bearing brackets and corners made of galvanized steel are used. The frame allows you to perfectly level the sheltered area, to give the necessary slope to the structure.

In the above unit for installing parapet aprons, the design of the subsystem consists of several constituent elements:

• Bearing bracket 50 mm (facade)
• L-shaped guide 40x40mm made of galvanized steel.
• Bracket Anchor
• Rivets
• Roofing screws

The period of installation of brackets and guides should be 400-600mm. This allows you to firmly fix the apron of the parapet.

DECORATIVE SOLUTIONS

Galvanized parapet aprons have special coatings that are additional protective layer and also give color to products. There are several basic protective and decorative coatings:

• POLYESTER (PE)
• MATTE POLYESTER (MPE)
• PURAL (PU)
• PLASTISOL (PVS)
• POWDER PAINT

Factory sheets of galvanized steel have several standard colors, they are listed below.

Products that need to be given a shade different from the factory color are painted with powder paint according to

PARAPET APRON PRICES

The prices shown are inclusive of VAT 18%

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 elementresembling 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 parapet completely hides the roof of a flat type. 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 stone laid on top of them.

c lay the material across the web at a distance of 150 mm from the edge and apply to the junction;

· holding the lower end of the web, begin melting the cover layer and gluing to a vertical surface;

· then the lower end is glued to a horizontal surface;

· after laying the top layer of the main roof cladding, the top layer is applied similarly with an overlap on the horizontal surface of 250 mm (100 mm overlapping the first reinforcement layer of the roof cladding at the junction)

If rolls roofing material the main layers of the roofing carpet are laid parallel to the parapet wall, then the arrangement of the layers changes (see Fig. 18).

Rice. 18. Adjoining a roofing carpet to a vertical surface (alternative option).

The main layers of roofing material are laid close to the transitional side. Additionally, another layer of roofing material is laid on the transitional ledge, extending 100 mm onto the horizontal surface.

4.7.2. Options for fixing the edge of the roofing carpet on vertical surfaces in the adjoining roofing carpet to parapet walls, elevator shafts:

4.7.2.1. Adjacency of the roof to the wall with mechanical fastening by the edge rail of the edge of the roofing carpet (see Fig. 19, 20).

Holes are punched in the edge rail with a pitch of 100 mm. The upper edge of the rail has a fold that provides sealing of the seam between metal rail and wall plane. The rail is mounted on smooth vertical surfaces (plastered brick walls, monolithic concrete, concrete slabs).

The edge rail cannot be installed on wooden surfaces and metal aprons.

The ends of the roofing material lead to the transitional ledge. If necessary, the roll of roofing material closest to the parapet wall is cut along the web so that the edge of the roll is closely adjacent to the transitional ledge.

Glue strips of material into the corner between the transitional ledge and the horizontal surface. The strips should go on a horizontal surface by 100 mm and completely cover the transitional ledge.

Pattern step 2.

Glue a strip of material 200 mm wide into the corner.

Pattern step 3.

Glue the material of the first layer on the parapet wall. The material should extend onto the horizontal surface by 150 mm. The upper edge of the additional layer of reinforcement should wind up on the parapet wall.

Pattern step 4.

Glue a patch on the corner that overlaps the edges of the reinforcement layer.

Lay the material of the second layer in the same way, leading the ends of the material to the transitional ledge. The side seams of the material of the first and second layers on a horizontal surface must be offset relative to each other by at least 300 mm.

Glue a strip 200 mm wide into the corner.

Pattern step 8.

4.7.4. Option for cutting and laying material on the outer surface of the roof corner.

Lay the first layer of roofing material, bringing the ends of the rolls to the transitional ledge. The height of the establishment must be at least 100 mm. Rolls of roofing material welded along the parapet wall should come close to the transitional ledge. If necessary, the roll of roofing material closest to the parapet wall is cut along the web, so that the edge of the roll is closely adjacent to the transitional ledge.

Glue strips of material into the corner between the transitional ledge and the horizontal surface. The strips should go on a horizontal surface by 100 mm and completely cover the transitional ledge.

Pattern step 3.

Paste the parapet wall with the material of the first layer. The material should extend onto the horizontal surface by 150 mm. The upper edge of the additional reinforcement layer should be placed on the horizontal plane of the parapet wall.

Pattern step 5.6.

Lay the material of the second layer, also bringing the ends of the material to the transitional ledge. The side seams of the material of the first and second layers must be offset relative to each other by at least 300 mm.

Glue a composite strip of material 200 mm wide into the corner.

Pattern step 8.

Paste the parapet wall with the material of the second layer. The material should extend 250 mm onto the horizontal surface. The upper edge of the additional reinforcement layer should be 50 mm from the front part of the parapet wall.

Pattern step 9.

4.8. Pairing roofing carpet with protruding roof structures.

4.8.1. Pairing the roofing carpet with square pipes.

Lay the first layer of roofing cladding, leading the edges of the panels to the transitional ledge.

Glue strips of material into the corner between the transitional ledge and the horizontal surface. The strips should go on a horizontal surface by 100 mm and completely cover the transitional ledge.

Pattern step 2.

Paste the pipe with the material of the first layer. In places of bending on the transitional side, cut the material and remove all excess (see patterns step 3, 4).

Patterns step 3.4.

Stick a piece of material on the side of the pipe and cut it along the contour (step 5).

Paste the pipe with the material of the second layer. In places of bending on the transitional side, cut the material and remove all excess (see pattern step, 4).

Pattern step 10.

Fix the edges of the roofing material on a vertical surface with an edge rail.

4.8.2. Pairing the roofing carpet with round steel pipes with a diameter of 100 mm or more.

This method of manufacturing a roof deck abutment is not applicable to plastic pipes, tube bundles and hot pipes.

Tape the pipe with the material of the first layer.

Cut a strip of material with a width of more than 350 mm from below, forming a skirt. Tape the pipe with material.

Pattern step 4.

Stick the second layer of roofing carpet.

Fix the upper edge of the material on the pipe with a steel clamp and grease bituminous sealant. The place where the roofing mat meets the pipe should also be additionally smeared with bituminous sealant.

4.9. Roofing repair.

If the surface of the roofing carpet has mechanical damage, it can be easily repaired.

Minor damage to the roofing mat, such as punctures, cuts, are repaired by patching the surface of the roofing mat.

The patch must have rounded edges and overlap the damaged surface by at least 100 mm. In all directions.

How to install the patch:

· Clean the area of ​​damage from debris and dust.

· Cut out a 100 mm patch covering the damage to the roofing mat and round off the corners on the patch.

· Heat the patch site with a propane torch flame and press the topping with a spatula into upper layer bitumen binder.

· Apply a patch to the damaged area.

Attachment of the roof to the parapet

The parapet is an integral part of the roof of many houses, complementing their design. It has a certain height, which can be different depending on the situation. At the junction of this protective border with the roof, the roof adjoins the parapet, which must be carried out in accordance with all the rules.
Although the parapet is not one of the main parts of the house, it performs well the protective and aesthetic functions. This is a small wall that is arranged along the perimeter of the roof and looks like a building envelope. This design works on both pitched and flat roofs. In the first case, the parapet is built above the cornice and it is clearly visible from below. In the second case, a small barrier completely closes the roof from view. So that they don’t destroy the parapet precipitation and air currents, this elevation is covered with an apron, which can be made of galvanized or copper sheet metal. Structurally, it is equipped with special drippers, with the help of which water is diverted from the building. Droppers prevent water from entering the protected areas of the parapet.
Note! There are options for brick or concrete parapets covered not with metal aprons, but with concrete slabs.

Principles of joining the roof to the parapet
In order for aprons made of galvanized metal sheets to be securely attached to the fence, strobes and niches are created in the design of the parapet. The upper edges of the aprons are inserted into these grooves, which are metal sheets bent into profile products. Aprons can also be used from black steel for roofing, but it must be painted on all sides using heated drying oil. Niches and strobes are provided for the adjoining device by construction necessity. It is known from practice that a single roofing sheet is not enough. This is due to the fact that the vertical sections are not always even. In addition, for fastening negative impact provide unstable temperature conditions and precipitation. In connection with these negative phenomena the apron may not fit snugly against the curb. With the help of grooves, these problems are solved.
When the edge of a sheet made of a particular material is inserted into a niche, its height must be at least 0.1 m.
If a strobe is used to install the apron, the latter is sealed with a cement-sand mortar, which protects the structure from precipitation.

At a distance of 1 m from each other along the length of the parapet, wooden plugs impregnated with an antiseptic are installed. Bars with a triangular cross-section are fixed to the corks. From above, this design is covered with an apron.
Laying fragments of the apron is done to the side into which precipitation will flow, while the overlap should be at least 0.1 m.
If the roof is flat, then its joint with the fence is covered with waterproofing in several layers. Mastic waterproofing needs reinforcement. Geotextiles or glass-based materials are best suited for these purposes. During installation, an overlap of 0.15 m is arranged. The material is pressed against a vertical surface through an additional side. Then the resulting structure is smeared with an emulsion or mastic. After the fastener has cooled down, the second layer is laid on the first layer. So that the “layer cake” does not slip, it is fixed with a metal apron, which, among other things, performs a protective function. The drawing demonstrates well how the adjunction of mating surfaces is arranged.

Connecting device with soft roof
When adjoining to the parapet of a roll-type roof Special attention it is necessary to give waterproofing - it must be reinforced. When installing roofing, the material must be wound onto a vertical wall. When laying the material, a special support must be present at the junction of the surfaces.
Covering the parapet with roofing material Covering the parapet with roofing material
Note! In the absence of an auxiliary rim, a vulnerable cavity is formed at the junction of the surfaces of the roof and the parapet. In this place, the flooring under mechanical action can be easily damaged, resulting in depressurization of the coating.

In order to avoid problems associated with damage to the roofing material, the joint between the surface of the roof and the parapet is laid with a supporting edge, which has 2 angles of 45 ? in cross section. Its device is carried out from a mixture based on cement and sand. Instead of this support, a wooden block impregnated with a bio- and fire retardant can be placed, which in cross section has the form isosceles triangle. Thanks to this side, the coating material will adhere tightly to the entire adjacent surface.
If the waterproofing material is roofing material, then with the help of hot bituminous mastic roll material must be glued to the entire surface of the roof, starting from its base and ending with the parapet wall, including the rim. After some time, the operation must be repeated, covering the roof with a second layer of roofing material. During the construction of the parapet, a special groove is arranged in its inner surface. When joining two surfaces, the edge of the roofing material with outside is inserted into the groove. A junction node is possible with the installation of a roofing material on the upper section of the parapet.

If the edge of the roofing strip goes into the strobe, the material must be fixed with a metal bar, which will press the roofing material against the wall with dowels. This part and joint are sealed with sealant. The next layer will be paint that protects the structure from precipitation. At the end, a metal apron is put on the parapet, which can be attached to the bar.
In the option with the introduction of roofing material on top of the parapet, the roofing material is first fixed with heated bitumen, and then covered with an apron or slabs.
Installation of the apron on the parapetInstallation of the apron on the parapet
Techniques exist to perform the abutment of these surfaces using mastic agents having hydrophobic characteristics. With this treatment, the coating is created without seams, and the abutment is reliably sealed.

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Roof parapet - a standard attribute of flat roofs, including inversion, but can also be installed on pitched structures. The functional purpose of the parapet is to ensure the safety of people on the roof. In addition, this element can serve as an architectural decoration of the building.

Design requirements

According to SNiP, in without fail it is required to install a parapet on the roofs of buildings whose height is more than 10 meters (to the cornice), and the slope angle of the slope reaches 12%. If the slope of the roof exceeds 12% and the height of the building to the cornice is more than 7 meters, a fencing device is required. First of all, this requirement applies to flat exploited roofs, on which people are supposed to stay.

The roof parapet can be made from various materialsFirst of all, it is:

• monolithic reinforced concrete;
• brick;
• concrete blocks;
• metal.

A metal parapet is usually a welded enclosing structure that is attached to the roof over the roofing.

The height of the roof parapet is usually chosen based on the architectural features of the building, the configuration of the roof, and its functional purpose. According to the requirements of SNiP, the parapet must have a height of at least 45 cm. Maximum size structures - 1.2 meters.

The minimum value of the height of the parapet is due to the need to install an additional waterproofing carpet, which is attached with a run of 25 cm or more on the vertical surface of the structure. From above, the parapet must be protected by a special metal apron that protects against destructive external influences of snow, rain and wind. Apron for the parapet can be made of:

• metal profile;
• galvanized steel;
• copper.

Often, concrete or brick parapets are protected from above with concrete slabs, decorative stone. In this case, the metal apron is not mounted.

The top of a flat roof parapet can be either horizontal or pitched. It is also possible to manufacture structures non-standard shape by individual order. When installing a steel apron, it is required to use fixing crutches, while the attachment points must be treated with high-quality building silicone sealant. If concrete slabs are laid on top of the parapet, the joints between them must be reliably sealed, as well as the junction of the roof to the parapet.

brick parapet

The enclosing structure on the roof, made of brick, is usually a continuation of the brick wall of the building, which is carried out after the installation of the ceilings. At the design stage, it is recommended to determine the required height of the brick "side" in order to provide for the arrangement of a special groove during laying, which is necessary to connect the roof to the parapet.

The groove is made if the structure has a height exceeding 50 cm. In other cases, the rolled roofing carpet is brought to its upper plane, followed by the installation of a protective apron.

Connection arrangement

adjoining soft roof to the parapet requires reinforced waterproofing. Rolled roofing is mounted on a vertical surface. Reinforced waterproofing of the junction is required. If the material is laid without mounting a special support, a cavity under the roofing carpet is formed at the junction of the planes. This leads to the risk of accidental mechanical damage to the flooring, violation of the tightness of the coating.

To avoid problems associated with damage to the roof covering during roof cleaning or roof maintenance, a 45° ledge is made between the roof base and the parapet. For this, a cement-sand mortar is used, in some cases it is possible to lay wooden blocks of triangular section, treated with a fire-retardant composition. Such a side allows you to ensure a snug fit of the rolled material over the entire plane.

If the waterproofing is made of roofing material, it should be glued to the base of the roof, the side and the wall of the parapet with heated bituminous mastic. After cooling, it is necessary to glue the second waterproofing layer. To connect the roof to the parapet, the upper edge of the material used is inserted into the prepared groove, or onto the upper part of the structure.

The edge of the rolled material, which is inserted into the groove, must be fixed with a metal clamping bar using dowels. The plank and joint are treated with sealant and painted with weather-resistant paint. The upper metal apron is then attached to the same bar.

A traditional element of flat, in particular inversion, as well as some pitched roofs is the node of the parapet. It is installed in order to protect people who move along the roof for the purpose of diagnostics or repairs from falling from a height. In this article we will talk about what are the basic requirements for this structural element of the roof, as well as how to properly equip it.

Technical standards

The installation of a house roof parapet is mandatory for buildings with a height of 10 m and a roof slope of up to 12%. On buildings with a height of more than 7 meters and a slope of more than 12%, a protective fence should be erected. Be sure to comply with GOST roofing. These requirements apply to flat roofs that need constant maintenance by people. These are the requirements of SNiP.

What is the parapet knot made of?

In order to build a parapet assembly, the following materials are used:

• brick;
• foam concrete blocks;
• monolithic reinforced concrete slabs;
• metal.

If we talk about a metal parapet, then we mean a welded structure fixed above the finishing roofing.

According to SNiP, the height of the parapet can vary between 45-120 cm, the resulting value will depend on the configuration of the roof.

Since an additional roofing carpet must be laid on the parapet, which extends 25 or more centimeters onto a vertical plane, a minimum height of the roof fencing of public buildings is provided. To protect the fence from the effects of precipitation and wind, a metal parapet apron is laid on top of it.

Parapet apron options

The material for the apron can be:

• copper;
• metallic profile;
• sheet galvanized steel.

Often a parapet made of concrete or bricks overlaps decorative stone or solid plates - then there is no need for a metal apron.

The upper plane of the parapet can be both horizontal and inclined. In some cases, the parapet scheme is developed in individually. When fixing a metal protective apron, fastening crutches are used. Additionally, joints and junctions are coated with silicone sealants. If concrete slabs are placed over the parapet node, the seams between them, as well as the points of contact between the parapet and the roofing, are also sealed with high quality.

Brick parapet on the roof

The brick parapet knot is a continuation of the wall masonry, which is completed after the installation of the ceilings. The height of such a structure is calculated during the design, since when removing the wall, it will be necessary to make a small groove. It is needed to equip the unit for covering the roof surface with a parapet.

Such a groove is made for sides with a height of more than 50 cm. In other cases, the roofing covers, among other things, upper surface parapet and fixed with a metal apron.

Organization of the junction

The joint between the parapet structure and soft roofing needs additional waterproofing. In this regard, the rolled roofing carpet is laid so that it overlaps the vertical plane of the parapet. The docking point must be waterproofed especially carefully.

Please note that in the case of laying soft roll roofing without additional supporting elements, at the junction of the planes under the coating, a hollow space will form. It may cause mechanical damage coating, violation of its integrity and tightness.

In order not to damage the roofing carpet during technical work for cleaning or repairing the roof parapet, between the roof surface and vertical wall the parapet is laid with a side at an angle of 45º. It can be made from a cement-sand mixture, triangular wooden bars, treated with antiseptic and flame retardant agents. Thanks to this support, the rolled roof will fit snugly on all surfaces.

Possible repair near the node

The roofing material waterproofing layer must be tightly glued to the parapet wall, roof plane and side with hot bituminous mastic. As soon as the first layer cools down, a second layer of waterproofing is glued on top of it. The adjunction of the roofing to the plane of the parapet is carried out by laying the upper edge of the roof in a pre-made groove, or directly on the upper plane of the fence.

To fix roofing materials in the groove, a clamping bar is mounted on top of it and dowels are screwed in. Both the seam and the bar are smeared silicone sealant and color. A steel apron, which will be installed over the parapet, is also attached to this bar.

In cases where rolled roofing is thrown over the upper surface of the parapet, it must be glued with heated bituminous mastic and pressed with a steel apron or parapet slabs.

Alternatively, the junction of the parapet with the roofing is treated with hydrophobic mastic materials. Thus, a continuous hermetic coating without seams is obtained.

Roofing materials, like everything else in the world, do not last forever. Manufacturers give guarantees for the operation of certain roofing materials, only if they are correct device. So, in order to avoid swelling of the rolled roof, it is necessary to carry out a competent connection with a wall, an apron, a pipe, a parapet, etc.

Before forming the junction of the roof to the wall, it is necessary:

• Plaster the roof surface along the entire height of the junction. In this case, the height should not be less than 30 cm;
• Then nail wooden slats having a triangular cross section of not less than 5x5 cm. It is on these slats that it will be wound lining carpet and tiles;
• Next, a valley carpet is glued onto the layer of bituminous mastic, which should be attached to the wall in its upper part with the help of adjoining strips and dowels.

At the same time, the valley carpet enters the wall by no less than 30 cm, and the slope will be at least 15 cm.

The sealing of the upper ends of the formed abutments should be provided with a silicone sealant.

The device for adjoining a roof with an apron can be made in several ways:

1. When using metal tiles or any other profiled material, the connection around the chimney must be carried out by 2 metal aprons - upper and lower. The chimney is insulated from the roof with asbestos, the crate will be solid, however, it is necessary to maintain a distance of at least 13 cm from the masonry.
2. When installing a roof soft material, installation of 2 aprons is not possible. AT this case, the installation of the junction must be carried out along the outer contour. At the same time, the upper bar is provided 30-40 cm longer than the pipe, and the remaining bars are mounted directly on the coating.

Soft roof connection device

The device for adjoining a soft roof takes place in several stages:

• The strobe on the wall must be made 20-50 cm above the surface of the coating;
• A beam with a triangular section is attached along the entire perimeter of the junction;
• The junction points on the roof are cleaned of debris and treated with a primer;
• Soft coating is laid on the beam;
• The strip for the valley is attached to bituminous mastic or sealant;
• The rolled material is smoothed and pressed, and large crumbs are cleaned off at the gluing points;
• At the end of the work, the junction nodes are fixed with a metal strip having a flanging and attached to the wall with dowels.

There are 2 ways to adjoin a roof made of built-up materials:

1. Overlap. In this case, the roll material is mounted in such a way that its end is on vertical plane. Then, over the roofing sheet and on vertical wall the adjoining canvas is laid, which is fastened with roofing nails to wooden lath, pre-prepared and mounted on the wall. The top of the canvas should be covered with a metal apron;
2. Fork. When choosing this method of mounting the junctions, the covering and junction sheets are attached to the rail, which is pre-installed in the base of the wall and roof. The junction of the canvases is covered with a metal apron.

Roof-to-pipe junction device

To connect the roof to the pipe, you must:

• prepare the surface;
• apply mastic with a roller or brush;
• lay geotextiles;
• On top of the geotextile is a second layer of mastic.

The composition of the mastic includes polyurethane - a material resistant to temperature changes (from -40 to +75 degrees). The service life of waterproofing mastic will be at least 20 years. Read also roofing mastic technologies.

The junction of the roof to the chimney goes a little differently:

• The crate near the pipe in the upper part must be laid horizontally;
• Then waterproofing is placed, moreover, one edge should go onto the pipe, and the other - under the roofing;
• In the places where the board or beam adjoins the pipe, it is necessary to lay a wooden triangular beam under the waterproofing layer;
• In those places where the waterproofing enters the pipe, its edges must be smeared with sealant, after which it must be closed with a metal strip;
• This wall plate is fastened with dowels to the pipe, or goes directly into the groove and is filled with sealant.

Roof junction to parapet

When the roof is connected to the parapet, it becomes necessary to carry out additional (reinforced) waterproofing, which is carried out in several stages:

• Initially, between the parapet and the roof, you need to arrange a board, the angle of which should be 45 degrees. It is better to make such a board from a solution of cement and sand, as this will make it easier to stick waterproofing rolls;
• If roofing material is used for waterproofing, then it must be glued directly to the base of the roof, to the parapet wall using bituminous mastic (hot).
• Next, be sure to let the mastic cool completely.
• After the mastic has completely cooled down, you can glue the next waterproofing layer. Moreover, the edge of the material at the top must be brought either into the groove brickwork, or fastened with a metal bar, to which, subsequently, an apron (upper) will be mounted;
• The attached plank must be attached to the wall with dowels, treated with sealant and painted.

In the event that the parapet is low enough, the roofing felt must be laid directly on the top of the bricks (parapet), after which it is glued onto hot bitumen and is closed with a metal apron or a parapet slab.

The device for adjoining the roof to the parapet according to SNiP:

• At the junction of the roof to the parapet, the layers of the carpet must be laid using 3 layers of roofing material, the top layer of which has a scaly or coarse-grained dressing;
• Each of the layers of the waterproofing carpet must provide for the use of mastic with high heat resistance;
• In mastic roofs it is necessary to apply 3 layers of mastic reinforced with glass material;
• protection for upper layers galvanized steel or a parapet slab will serve as a waterproofing carpet;
• Seams must be filled with sealant.

Roof junction device from corrugated board

• In those places where the sheets of corrugated board adjoin a vertical surface, an abutment bar must be installed;

  When mounting the adjacent plank to the wall, it is better not to use a construction gun, as the dowels are fired too hard, which will cause the material to bend.

• It is important to fix the ridge elements in their upper part with self-tapping screws;
  For achievement desired effect connection devices, use a drill, it is also much more convenient to screw in self-tapping screws with a screwdriver.
• After screwing in the screws, be sure to remove the metal shavings, as it gives rust. It is better to use a brush with soft bristles.

The device for adjoining a roof from a metal tile includes:

• Internal apron, consisting of several abutment strips, which are mounted starting from the bottom walls of the pipe;
• A strobe is punched into which the edges of the slats are inserted. They must be sealed and attached to the crate using self-tapping screws;
• A tie is wound under the apron, which is necessary to improve the flow of water;
• Installation of a metal tile, the strips of which must be fastened together using rivets, or in the same way - self-tapping screws.

You can get acquainted with the manual for digging a roof with a metal profile.

The cost of a roof junction device

In cost roofing works of this type included:

• Roofing;
• The number of connections required.

On average, the cost of one connection will vary from 250 to 550 rubles. Carrying out this type of work on your own can be quite difficult, for this reason it is better to resort to the help of specialists who will draw up an estimate, perform work of any level of complexity and provide a guarantee for further operation.

Video

The video below shows how the roof is connected to vertical surfaces and pipes.