≡× MENU

• Interior
• Window
• Walls
• Projects
• The buildings

Installation of a 3-storey flat roof panel building. Major repairs to the roof of an apartment building - methods. Photo of the roof greening process

Flat roofs are often used in the construction of modern high-rise buildings, administrative and industrial buildings, suburban construction. In the latter case, they are most popular when creating low-rise buildings or outbuildings.

Basic requirements for flat roofs

Increased roof strength is very important for regions with heavy snowfall. IN winter periods it will have to withstand significant stress as a result of the formation of a thick layer of ice and snow. This indicator is also very important in the case of creating a serviceable roof.

A flat roof should perform functions reliable protection from rain and melt water and have a sufficient slope so that precipitation does not linger on it.

The structure should not deteriorate under the influence of severe frosts and scorching rays of the sun, sudden temperature changes and heavy hail.

It should cope perfectly with the heat-insulating function.

All materials used in the construction of the roof must be fireproof.

Pros and cons of flat roofs

Pros:

• Flat structures have a much smaller area than pitched structures, which allows for significant savings on materials and during construction and installation work.
• A smaller area helps optimize costs.
• The construction of such roofs can be completed in a shorter time than with the installation of pitched roofs, since all the required materials can be located in close proximity - literally at your feet.
• Due to the same feature, maintenance and carrying out is simplified. repair work: their implementation on a flat horizontal surface is greatly simplified.
• On flat roofs it is convenient to carry out installation and necessary maintenance work that requires the use of special equipment: solar panels, air conditioning systems, antennas, etc.
• When creating a flat structure, you can get additional meters usable area and use them as a recreation area, sports ground or arrange a flower bed or garden. Currently, it is possible to cover the roof with paving stones or paving slabs through application special technologies. Paved quality tiles roof combined with garden furniture, green area, gazebo will be an ideal place for a family holiday.

Minuses:

• during heavy snowfalls, a snow mass will accumulate on the surface, which, when melting begins, often leads to the formation of leaks;
• there is often a need to use gutters;
• in the cold season there is a risk of freezing of the internal drain;
• the drainage system often becomes clogged;
• a mandatory requirement is mechanical cleaning of the surface from snow mass;
• periodic monitoring of the condition of the insulation is necessary to prevent its moisture;
• From time to time it is necessary to check the integrity of the coating.

Types of flat roofs

There are four main types flat designs:

Operated roofs

Their peculiarity is the need to create a rigid base - otherwise it will not be possible to maintain the integrity of the waterproofing layer. The base is a screed based on concrete or corrugated sheeting, which is necessary to create a certain slope for water drainage. Used in constructing an exploitable roof thermal insulation material will be subject to significant static and dynamic loads and must have a sufficient level of compressive strength. If the insulation is not very rigid, a cement screed will be required on top.

Unused roofs

When installing this type, there is no need to create a rigid base in order to lay waterproofing material. No need for rigid insulation. For further maintenance of the roof, bridges or ladders are installed, the function of which is to evenly distribute loads over the roofing surface. The construction of unused flat roofs will cost much less, but they will not last as long as exploited ones.

Traditional roofs

Structure traditional types roofing requires the placement of a layer of waterproofing material above the thermal insulation material. The base for the roof is a reinforced concrete slab, and water is drained from the roofing surface by creating an inclined screed made of expanded clay concrete.

Inversion roofs

Inversion type roofs have practically solved the problem of leaks - the main drawback of flat structures. In them, the thermal insulation is located above the waterproofing carpet, and not under it. This technique helps protect the layer of waterproofing material from the destructive effects of solar ultraviolet radiation, sudden temperature fluctuations, the process of freezing and subsequent thawing.

Compared to other types of roofing, inversion roofing is more durable.

In addition, it is distinguished by increased functionality: you can lay a lawn on it and make tiled laying. The optimal angle of inclination of such roofs is considered to be from 3 to 5 degrees.

Device Features

The main subtleties of constructing flat roofs are as follows:

1. Vapor barrier is created using a bitumen-polymer membrane, fiberglass reinforced. Another option is to lay a vapor barrier film over the screed.
2. Along the edges of the roof, a layer of vapor barrier material is placed vertically so that its height is greater than the height of the insulating layer, after which the seams are sealed.
3. Insulation is laid over the vapor barrier (in the case of a traditional roof).
4. A protective carpet is laid over the insulation, which is made from waterproofing materials with bitumen base.
5. If expanded clay is used as insulation, it must be made cement strainer. Waterproofing is laid on it in two layers.
6. When installing lightweight structures that do not require significant loads, it is necessary to glue a waterproofing sheet along the entire roof perimeter.

Installation

A flat roof cannot be installed strictly horizontally - it must be observed minimum slope at least 5 degrees. This requirement is due to the need to ensure the drainage of rainwater and snow from the roofing surface. Another important point: it is necessary that the slope be created not only by the coating, but mainly due to the correct implementation of expanded clay or slag bedding. Even if the slope angle reaches 10 degrees, this will not interfere with the uniform laying of the heat-insulating material.

Lightweight flat roofs

When constructing such roofs, the work is divided into several stages.

As a result of the work done, a warm and fairly reliable flat-type roof is obtained: in cross-section it resembles multilayer cake based on several components.

Hard roof installation

When creating floors of this type, expanded clay is best suited as a thermal insulation material. The minimum thickness of its layer should be 10 cm. Above the laid expanded clay, it is necessary to make a cement-sand screed with a thickness of 40 to 50 mm. To ensure greater strength, a reinforcing mesh is placed in its middle layer. This measure is necessary to maintain the integrity of the coating while people are on it during repair, maintenance work, etc. In addition, these roofs are optimally suited as a base for constructing a swimming pool or recreation area.

Manufacturing of beams similar designs Most often it is carried out on the basis of a metal channel, since parts made of wood will not withstand significant loads.

Another requirement when installing roofs in use is the sufficient thickness and strength of the walls of the house.

Methods for constructing flat structures

There are several main ways to create flat roofs:

• Through installation concrete slabs ceilings Such work can be completed in a fairly short time, but special lifting equipment will be required. Application this method involves the implementation of insulation. The material can be laid both inside and outside.
• Using metal channels or I-beams, on top of which it is necessary to lay boards: their thickness should be 25-40 mm. A layer of expanded clay is poured on top, then a concrete screed is created.
• The creation of the ceiling is carried out through monolithic concreting. This requires high-strength formwork with thick supports. The supports are fastened together using jumpers. This type of floor also needs to be insulated.
• Using ceramic blocks large sizes: they are laid on top of metal beams. Such blocks replace wood flooring. The main advantage of this method is the use of ceramics, characterized by increased mechanical strength, resistant to moisture and having excellent sound and heat insulating properties. Large ceramic blocks don't need additional insulation: when using them, you can limit yourself to such a measure as creating a concrete screed.

CONCLUSIONS:

• Flat roofs are often used in the construction of modern multi-storey buildings, administrative and industrial buildings, in suburban construction.
• Flat structures must have increased strength - especially when there is a large amount of precipitation.
• Flat roofs have a much smaller area than pitched roofs, which allows for significant savings on materials and during construction and installation work.
• The main disadvantage of such roofs is that during heavy snowfalls, snow mass accumulates on the surface, often leading to the formation of leaks.
• Flat roofs can be used, non-used, traditional and inverted.
• Inversion type roofs have practically solved the problem of leaks - the main drawback of flat structures.
• A flat roof cannot be installed strictly horizontally - a minimum slope of at least 5 degrees must be observed to allow precipitation to drain off.
• The installation of flat roofs of lightweight construction is fundamentally different from the process of installing solid roofs.
• Flat roofs can be created in several ways.

In the video you can see how to organize drainage with flat roof with a non-flammable Rockwool insulation system.

In some cases (for example, if a metal tile system is being installed on top of an old soft tiles) this is possible. However, it is necessary to understand that a damaged base can begin to rot and, thereby, provoke failure of the new layer. This is why we would not recommend laying new materials on top of old ones. It is better to remove the damaged building material and completely carry out the required work, as required by technology.

As practice shows, the vast majority of roofs in ordinary private houses are built in such a way that there is no need to dismantle them to install an additional insulating layer. roofing base. If we talk about multi-apartment buildings, then the situation is different: since fused coatings are used in multi-storey buildings, insulation becomes impossible.

If there is damage to individual structural elements, then only these parts can be replaced. In this case, the area of ​​damage should not exceed 35%. For larger problems, it is worth making a complete replacement. rafter system.

Urgent repairs are required if there is a serious violation of the tightness of the coating: it may be necessary if part of the roof is torn off, water leaks during precipitation, peeling, rupture or swelling roofing material.

We provide the following warranty periods:

• soft roof: 5 years
• metal roofing: 3 years
• roll and bitumen coatings: 3 years
• polymer tiles and seam roofing: 6 years.

The warranty period depends on the type of work performed and is calculated when drawing up a repair plan. Information about warranty periods must be communicated to the customer before the start of work and included in the contract.

Any leak is a problem that requires careful and timely repair. Firstly, it is important to correctly determine the cause of the leak. Secondly, when self-repair there is a risk of damaging serviceable elements located nearby. If you are not an expert in roofing work We recommend calling a specialist who will not only fix the problem, but also provide a guarantee for their services.

In order to accurately determine the cause of the appearance of water, an examination will be carried out by a specialist. You can independently determine what is causing the appearance of moisture using the following signs:

• when a leak occurs in the roof, water begins to drip in the warm season after rain, and in the cold season during sunny weather and sudden warming.
• When condensation accumulates, moisture appears constantly and is practically independent of weather conditions.

For an accurate diagnosis, we recommend calling a specialist who will accurately determine the cause and tell you what actions need to be taken next.

TO significant shortcomings panel construction can be attributed to insufficient thermal insulation of the structure. And this question especially concerns the roof structure. Waterproofing and insulation of the roof is an issue that periodically concerns all residents panel house, especially those who live on top floor. The appearance of cracks and cracks in the roofing, its insufficient insulation and thin layer lead to large heat losses during the cold season, the appearance of leaks and drafts, and a decrease in the performance characteristics of the entire structure. Therefore, insulation of the roof of a house must be carried out in a timely manner to avoid deformation of the rafter system, which can lead to roof collapse. In the case of a device flat roof, which has a base in the form of a concrete slab, insufficient thermal and waterproofing of the roof can lead not only to high heat loss, but also to the appearance of dampness and fungus in the premises upper floors.

Types of roofing of modern panel houses

During construction panel houses The most common types of roofs are flat, with various types roof coverings or attic roofs with a slight slope that prevents the accumulation of snow and moisture on the roof covering.

The most popular types of roofing for modern panel houses are roll roofing, multilayer bitumen shingles, soft roof and flexible tiles. Depending on the type roofing covering and the type of roof, the roof insulation technology and the type of heat insulator are selected. For insulation of panel houses they are used the following types thermal insulation materials:

• polystyrene foam boards;
• mineral wool insulation;
• rigid polyurethane foam.

Technology for insulating the roof of a panel house

Most in a simple way Insulating a flat roof involves spraying one or more layers of rigid polyurethane foam. This method allows you to create durable and moisture resistant coating roofs with good frost-resistant characteristics. The main advantage of PPU roof insulation is quick application thermal insulation coating with excellent mechanical strength and low thermal conductivity. Sprayed polyurethane foam is suitable for insulating soft roofs and roofs with big amount architectural elements. In addition to insulating the roof with polyurethane foam, there are several other ways to use the insulator, for example, to seal seams and joints and repair worn-out roofing.

Another popular method of thermal insulation is roof insulation with polystyrene foam, which is laid on the concrete roof slab in one or several layers to create waterproofing that protects the heat insulator from moisture penetration and condensation formation. Extruded polystyrene foam is suitable as insulation for any type of roof; this moisture-resistant and lightweight thermal insulation material for roof insulation has high mechanical strength and frost resistance and is included in the composition roofing pie when insulating pitched roofs. Its cheaper analogue is polystyrene foam, which is used for internal insulation roofing in attic roof structures. Since some types of foam plastic are considered flammable material, mineral wool slabs are used to insulate the roof from the inside, which are attached to the sheathing and covered vapor barrier material, preventing condensation from entering the surface of the insulation.

The technology of roof insulation with mineral wool on flat and sloping roofs of panel houses is carried out in two ways, using a single-layer or two-layer roofing cake. In the first case, roll or mastic waterproofing is laid on the concrete floor, then insulation is attached: polystyrene foam or mineral wool boards, after which a protective membrane and roofing covering, for example, soft roofing, are laid. The second method is to create double thermal insulation from different types insulation, which allows you to create a high roof insulation cake that prevents dampness concrete floor, and, therefore, retains heat in the rooms of the upper floors.

Flat roofs are made with load-bearing fully prefabricated or monolithic reinforced concrete structures. Such roofs are designed flat (with a slope of up to 5%) in three main options - attic, non-attic or exploitable.

Attic roof

The attic roof is the main type of roofing in residential buildings of mass construction.

Roofless roof

Bescherdachayaya in mass public and industrial buildings. A roofless roof may be used in residential buildings with a height of no more than four floors, built in temperate climate, as well as in limited areas of the roofs of multi-storey buildings - above elevator engine rooms, loggias, bay windows, above the volumes of vestibules, vestibules protruding from the plane of the facades and low-rise extensions for non-residential purposes (trade, consumer services, etc.). In turn, the attic roof structure is sometimes used in multi-story buildings. public buildings, when their structural and planning parameters coincide with the parameters of residential buildings, which allows the use of corresponding prefabricated reinforced concrete products for roofs.

Operable roof

The serviceable roof is installed over attic or non-attic coverings in buildings erected according to individual projects. It can be installed over the entire building or in individual areas of the roof.

The type of drainage from a reinforced concrete roof is selected during design depending on the purpose of the object, its number of storeys and location in the building.

In residential buildings of medium and high rises, internal drainage is used, in low-rise buildings, it is allowed to use external organized drainage when placing buildings with a horizontal projection of the edge of 1.5 m or more from the red building line, and unorganized - in low-rise buildings located inside the block. In all cases of using unorganized drainage, provision is made for the installation of canopies over entrances to buildings and balconies.

For internal drainage in residential buildings, one water intake funnel is provided per planning section, but at least two per building.

For external organized drainage, placement and cross-section drainpipes prescribed the same as for pitched roofs.

Waterproofing of reinforced concrete roofs is designed depending on their type. For non-attic structures, as a rule, roll waterproofing coatings are used (with the exception of non-attic roofs of separate construction).

Waterproofing of attic and separate non-attic roofs is carried out in the following three ways: the first (traditional) - by installing a multi-layer carpet made of rolled waterproofing materials; the second - coloring waterproofing mastics(organosilicon or others), which together with the waterproof concrete of the roofing panel provide protective functions coatings; third - the use of pre-tensioned roofing panels of high grade concrete for water resistance, providing roof waterproofing without painting with mastics.

According to the adopted method of waterproofing, the requirements for the characteristics of concrete roofing panels change (Table 20.2).

According to the method of air passage and release exhaust ventilation through the design, attic roofs with a cold, warm and open attic are distinguished. For each of these structures, any of the above described waterproofing methods can be used when designing. Thus, the design of an attic reinforced concrete roof has six main design options (Fig. 20.13):

• A - with a cold attic and roll roofing;
• B - the same, with rollless;
• B - with a warm attic and roll roofing;
• G - the same, with rollless;
• D - with an open attic and roll roofing;
• E - the same, with rollless.

Attic roofs are designed using the following four design options (Fig. 20.14):

• F - separate ventilated (with roof panel and attic floor) structure with roll roofing
• And - the same, with a roll-free roof
• K - combined three-layer panel structure
• L - combined multilayer construction manufacturing

During the design process, the choice of the type of flat roof structure is carried out taking into account the type of building being designed, its number of floors and climatic conditions construction area according to the recommendations of table. 20.3.

Attic roof structures consist of roof panels ( roofing panels and trays), attic floor, supporting structures under trays and roofing panels, external frieze elements (Fig. 20.15). Height of through passage in attic space must be at least 1.6 m. Local decreases of up to 1.2 m outside the through passage are allowed.

Attic roofs with a cold and open attic (structure types A, B, D, E) contain an insulated attic floor, non-insulated thin-walled ribbed reinforced concrete roofing, tray and fascia panels, in which holes are provided for ventilation of the attic space. Square ventilation holes on each longitudinal side of the facade, in climatic regions I and II it is assigned 0.002 of the attic area, in regions III and IV - up to 0.02.

The dimensions of the supply and exhaust openings in the fascia panels of open attics are assumed to be significantly larger based on the results of calculating the ventilation of the attic space.

Ventilation blocks and shafts cross cold attic roofs, exhausting the air mixture into the open space above the roof.

Roof structures with a warm attic (types B and D) consist of insulated roofing, tray and fascia panels, an uninsulated attic floor and supporting structures of roofing and tray panels (Fig. 20.16). Since the warm attic serves as an air collection chamber for the building's exhaust ventilation system, ventilation blocks and shafts end in the attic space with 0.6 m high heads without crossing the roof. Frieze panels are designed to be blank (without ventilation holes). These panels in some areas can be made translucent (for natural light attic), but not casements. In the central zone of the warm attic, a common exhaust shaft is installed (one per planning section) 4.5 m high from the upper plane of the attic floor.

Roof structures with an open attic (types D and E) are similar in composition to those with a cold attic, but ventilation structures it is not crossed, breaking off at a height of 0.6 m from the surface of the attic floor, as in roofs with a warm attic.

Peculiar architectural option reinforced concrete attic roof structures multi-storey buildings steel roofs with sloping fascia panels and vertical gable fascia panels, echoing traditional forms mansard roofs. This option can be used for both cold and warm attic roofs (Fig. 20.17).

The roof panels of roll-less roofs with a cold and open attic, as well as separate roofs without attics, are designed in the same way. These are thin-walled (slab thickness 40mm) ribbed reinforced concrete slabs. Butt edges of panels and their junctions with those intersecting the roof vertical structures (elevator shafts, ventilation unit, etc.) are equipped with ribs 300 mm high. The joints are protected by flashings (or overlapped) and sealed.

Drainage trough-shaped trays are made from waterproof concrete with a bottom thickness of 80 mm and a rib height of 350 mm, a width of at least 900 mm.

Roof panels and roof trays with a warm attic are designed with two or three layers. Upper layer made of frost-resistant concrete with a thickness of at least 40 mm.

The design of a separate attic roof (type I) contains the same structural elements as an attic roof with a cold attic, but due to the fact that its air space has a low height (up to 0.6 m), the solution of supporting structures is simplified - they can serve as separate reinforced concrete bars.

Three-layer panels of combined roofs (type K) are manufactured in a single technological cycle or assembled at the factory from two thin-walled ribbed slabs and insulation between them.

Almost tripled in size regulatory requirements to the resistance to heat transfer of external enclosing structures, the use of the most industrial and economical design of a combined roof (as well as warm attics) from single-layer lightweight concrete panels, since they have lost their economic viability.

Traditional combined building-made roofs (type L) are erected by sequentially laying on the building over the ceiling (made of monolithic or precast reinforced concrete) the upper floor of a vapor barrier layer, fill along a slope, a heat-insulating layer, a leveling screed and a multi-layer rolled carpet. Design L is the most labor-intensive and has the worst performance qualities. Its use should be limited as much as possible.

From Fig. 20.14 it is obvious that any of the attic roofs is a multi-layer structure, including a load-bearing reinforced concrete slab, vapor barrier, thermal insulation and waterproofing (with a special prefabricated or monolithic base underneath) layers. In this case, it is traditional to place a waterproofing layer on top, which leads (with a non-ventilated roof structure) to a decrease in the durability of the waterproofing carpet under the influence solar radiation and the pressure of vaporous moisture accumulating under the carpet.

To increase the durability of roof waterproofing, a version of the inversion design has been developed and is being implemented - with the waterproofing layer located directly on the load-bearing slab under the thermal insulation layer (Fig. 20.18).

Changing the location of the thermal and waterproofing layers, in addition to increasing the durability of the roof, creates a number of additional economic and technological advantages. The inversion design is less massive, since there is no need to install a special foundation for the roof in the form of a cement-sand screed on the insulation: the base for the waterproofing carpet is load-bearing slab coverings. Thanks to this arrangement of the carpet, the need to install a para-insulating layer is eliminated - the rolled carpet combines the functions of vapor and waterproofing.

Accordingly, the cost and labor costs are reduced, since the design and implementation of the interfaces of inversion roofs is simpler than that of traditional ones (Fig. 20.19). The fact that inversion roofs Until now, they have received relatively limited use in domestic construction due to the requirements for the physical and technical properties of insulation in such structures. It should have a low thermal conductivity coefficient of 1 3, a compressive strength of 0.25-0.5 MPa, a daily water absorption in % of volume of 0.1-0.2, be microporous and have a closed pore structure. The insulation must be hydrophobic, not allow swelling or shrinkage, and have the necessary mechanical strength. In practice, the possibility of expanding the introduction of inversion structures arises with the start of production of domestic extrusion polystyrene foam boards"Penolex", and accordingly a reduction in the volume of exports of similar insulation materials.

Operable roof terraces are installed over warm and cold attic roofs, above technical attics, and sometimes above combined roofs (Fig. 20.20). The latter option is especially often used in buildings with terraced ledges in its volumetric form. The floor of terrace roofs is designed to be flat or with a slope of no more than 1.5%, and the roof surface below it is designed to have a slope of at least 3%. For roofing, the most accepted durable materials(for example, hydroisol). The number of layers of rolled carpet is taken to be one more than with an unused roof. A layer of hot mastic antiseptic with herbicides is applied to the surface of the carpet. They protect the carpet from the germination of plant roots from seeds and spores blown onto the roof by the wind. When constructing a serviceable roof using an inversion combined structure, this role is played by a filtering synthetic canvas located under the ballast and drainage gravel layer. The roof-terrace floor is made of stone or concrete slabs, sometimes lined ceramic tiles. The floor slabs are laid loosely over a drainage layer of gravel.

Residents of apartment buildings, especially the upper floors, often face the problem of roof leaks. First of all, this problem is relevant for residents of old houses, where the roof, due to time and constant exposure to aggressive environmental factors, has become unusable and cracked, as a result.

Laying new roofing felt on the roof multi-storey building

A problem arises, but not everyone knows how to solve it. And there are often cases when residents of a house carry out roof repairs at the expense of personal funds collected in addition to utilities.

In our article, we will help you figure out what to do and where to apply for the need to repair the roof of your home if it is leaking. The reader will also be able to find out what type of roof his house is, what types of leaks can threaten it, and what causes them.

In every period of time, it was used in the construction of residential apartment buildings. different type roofs, and today there are buildings with the following roofs:

So, if we consider how the types of roofs in construction have evolved, we can see that the oldest buildings have multi-slope roofs, and they were replaced by single-slope roofs, which were supplanted over time. It is pitchless (flat) roofs in apartment buildings by far the most.

Modern new buildings are already equipped with a complex relief roof, which allows not only to decorate appearance building, but also to rationally use its surface.

As for the roof structure, all its types have the same constituent elements. So, the outer layer of the roof is. This can be liquid roofing material, slate (asbestos-cement covering), tiles (ceramic, bitumen, cement-sand, metal tiles), seams (steel, aluminum, copper), corrugated sheets.

Metal roof covering

And this is far from full list roofing materials that are offered by modern construction market, but for apartment buildings it is usually limited to the above positions.

The roofing material is fastened and laid on a rafter system or on a flat reinforced concrete floor slab. Also, any roof is equipped with a waterproofing layer.

Types of roof leaks

Based on the nature of leakage, experts distinguish the following types of leakage:

• snow leaks that reveal themselves either during the period of rapid snow melting, or at the moment of partial melting of the snow (in the layers of contact of the snow cover with the roofing material);
• storm (rain) leaks detected after the passage of an active rainstorm;
• “dry” leaks, which are a consequence of the accumulation of condensed moisture in the interlayer space of the roofing “pie”, usually occurring during a hot period of time;
• “flickering” leaks that occur haphazardly (in this case, the roof leaks for no apparent reason).

Causes of roof leaks

As in any other case, it is easier to prevent a leak than to deal with its consequences. And in order to implement preventive measures, it is necessary to understand what reasons can cause the appearance of one or another deformation of the roof covering, which leads to the occurrence of a leak.

So, let's look at the main reasons for roof leaks in apartment buildings:

It is quite simple to independently determine the place where active leakage of the roof of a multi-story building occurs, especially if the roof is covered with roofing felt. Air pockets form at leak sites and the roofing material rises above the leak site.

Leak detected - what to do next

It’s worth mentioning right away that unauthorized, hand-made repairs to the roof of an apartment building are strictly prohibited. This should only be done by specialists.

Overlap slate roof apartment building

Therefore, after you have discovered that the roof of your house is leaking, you need to contact your housing maintenance company (HEC) with a request to repair the roof. Sometimes a simple application left over the phone is sufficient, but most often you will still be required to submit a written application.

After this, the degree of destruction of the roofing is assessed and the type of repair is selected. All roofing repair work must be completed by the Housing Office within 5 days from the date of acceptance of your oral (or written) application.

Types of roof repair work

Options for repairing the roof of multi-storey buildings come down to two types. Let's talk about them in more detail.

Repair of roof covering: current

This repair of the roof of an apartment building is carried out when small defects in the old roof covering arise in terms of area or severity.

Complete renovation of the roof truss system of an apartment building

As a rule, routine repairs do not involve complete replacement roofing material on the roof, as well as repair of the rafter system (if any). During current repairs The old roof covering is being patched.

Current repairs can be carried out as planned or upon request when problems arise. emergency situations associated with roof leaks. It can be carried out in any weather, but preferable, of course, is dry and sunny.

This type of repair is the least expensive, and therefore it is used, and often even in cases where the roof already requires drastic measures.

Repair of roof covering: major

This type of roof repair on the roof of an apartment building involves a complete restoration of all elements roofing system starting from rafters and ending with a complete replacement of roofing material.


This type of repair is planned and can be carried out even if the roof is not leaking at the time. Unlike routine repairs, which can be carried out in any weather conditions, major repairs are planned for warm time of the year.

During a major overhaul, 100% dismantling of the failed roof covering is carried out, as well as complete renovation and restoration of the underlying structure. If the roof has a rafter structure, the rafter system is replaced. If the roofing material was laid on a reinforced concrete slab, then a fresh screed is poured, as well as the waterproofing layer is restored.

The process of pouring a new screed on the roof of a house

After completing the construction of the roof base, new roofing material is laid. In apartment buildings with a flat roof, roofing felt sheets are laid. To do this, use a burner (gas), the flame temperature of which must be strictly regulated. Otherwise, you can spoil the quality of the roofing material even at the stage of its installation, which will lead to the rapid occurrence of leaks.

The technology for laying rolled or sheet roofing felt is familiar to professionals, whose services must be resorted to without fail when organizing and carrying out repair work on the roof of an apartment building.