Roof leak repair. Repair of a soft roof - high-quality reconstruction of a roof in the winter and in the summer. Roof repair methods

Soft roof is one of the most popular types roofing. Under this name, various piece and roll products are combined, for the production of which fiberglass and bitumen are used.

Due to its flexibility, the material can be mounted on roofs of complex configuration. The same property makes both capital and Maintenance soft roof a fairly simple matter. Repair work is best done in dry and warm weather. The soft roof reconstruction technology will not require particularly large expenditures of labor, finances or time.

Roof inspection for defects

Even if at first glance it seems that the roof is in good condition, it is necessary to carry out preventive inspection from time to time to detect possible defects or damage. These include:

mechanical damage (caused by stretch marks, antennas, branches);

swelling of the roofing;

the presence of moss, plants, mushrooms;

cracks;

with a rolled roof - peeling of panels;

violation of the tightness of the imposed patches.

Any of these defects can lead to leaks. Leaks may appear:

immediately after the rain;

a few days after the snow begins to melt;

from time to time, but not after every rain (“flickering” leaks).

If the roof starts to leak immediately after rain, then most likely the reason lies in the presence mechanical damage and deformations, the application is not quality materials or improperly carried out installation.

When the roof leaks after the snow begins to melt, it is necessary to check the junctions with the ventilation shafts and the joints of the plates. Cracks most often form in these parts of the roof, which causes a malfunction. Leaks can also be caused by violations of funnels and fences.

The “flickering” nature of the leaks indicates the presence of microcracks, poor-quality parapets, or insufficient length of aprons.

The roof can also leak for other reasons - for example, if the installation rules are not followed, the wrong choice roofing material or all roof structure, violation building codes or using poor quality materials.

To maximize the life of the roof, it is imperative to carry out outdoor seasonal studies. And if defects are found, take measures to eliminate them.

AT spring time when the snow begins to melt, check:

the possible presence of stains on the ceilings of rooms located on the top floor;

the nature of the swelling and their size;

the integrity of the aprons and the correctness of their fastening;

condition of waterproofing joints.

AT summer time attention should be paid mainly to the following circumstances:

the presence of cracks in the coating and the degree of cracking;

the presence of bubbles.

In autumn, you can determine:

the degree of wetting of the walls, if the drain is external;

areas of stagnant water, if the drainage system is internal;

funnel clogging.

In the cold season, attention is paid to factors such as:

the thickness of the snow cover on the roof;

the presence of icing on the roof and its degree;

formation of icicles and their sizes;

the presence of water plugs in the drains.

What materials to choose

Today, the market offers a variety of materials for the repair of soft-type roofs. The most popular are:

Isoelast, Linocrom, Uniflex, Isoplast - for the top layer;

Isoplast, Bireplast, Uniflex, Technoelast - for the bottom layer.

Materials intended for the top layer should be covered with mineral dressing for protection from ultraviolet radiation. Together with the protective layer, they have a thickness of 4.5-5 mm.

The thickness of materials for the bottom layer is 3-3.5 mm.

When choosing, you must be guided by a specially designed table of compatibility of roofing materials.

Repair estimate

The estimate, as a rule, is compiled when planning a major overhaul of a soft roof, when it is necessary to lay a new coating.

It is made up only after old layer dismantled.

Only after removing the damaged coating, you can find out if there is a need for additional hydro, heat and vapor barrier and finalization of the screed.

To draw up a budget, you need to do the following operations.

Determine the total area of the roof. When calculating, protruding structures should also be taken into account - dormer windows and ventilation pipes. The resulting figure must be multiplied by 1.2.
If necessary, calculate the amount of screed cement and sand.
Determine the type of coverage and find the best offer in nearby stores.
Determine the amount of consumables.

Tools

To carry out the work, it is necessary to prepare some tools. During the repair, you may need:

gas stove;

50 liter gas cylinder;

reducer;

a stick intended for rolling out the deposited material;

putty knife;

broom or broom;

industrial vacuum cleaner (to remove dust from the base of the roof);

mounting cutter;

spool (pipe) for rolling roll material;

an ax used to cut out unnecessary roofing material;

during major repairs - a roof cutter.

If work is carried out in winter time, then you must also stock up on a wooden shovel to remove snow from the roof.

It is necessary to take care of overalls made of dense material, gloves and boots.

When working with a gas burner, be sure to wear safety goggles.

Maintenance

The need for minor repairs arises when minor damage appears on the surface: open joints, cracks, holes.

Holes, cracks

For elimination small cracks and their holes must be filled with hot resin or bitumen, a piece of roofing material should be glued on top of the mastic. Using a roller, the roofing material is smeared on top with heated resin or bitumen.

Opened joints

To eliminate the discrepancies of the joints, the roofing material must be raised and the surface dried with a burner. After that, the joint must be smeared with bitumen and put in place. From above, the joint is again coated with hot bitumen or resin.

To eliminate swelling, the roofing material must be cut crosswise. The edges of the roofing material are wrapped and dried very carefully with a burner. Then the place of swelling is filled with mastic, after which the cut edges are returned to their places. They must be strongly pressed down, the cuts must be thoroughly smeared with bitumen or mastic, and a pre-prepared piece of roofing material should be placed on top, and then pressed again very tightly.

For optimal sealing of the patch, the roofing material should be lubricated around the perimeter hot mastic or resin. Make sure that the patch overlaps the seams by at least 10 cm.

Overhaul

When overhauling a soft roof, the following steps must be taken:

dismantle the old coating;

restore cement screeds;

arrange heat, steam and waterproofing;

install new roofing material.

For dismantling, it is better to use special equipment with which you can remove the old coating and immediately roll it into a roll.

The work can be done with an ordinary ax, but wooden handle it is better to replace it with a metal one. The length of the handle depends on the height of the person who will use the tool.

After cleaning the surface, it is necessary to carefully check the base for cracks, dents, etc. In their absence, there is no need to fill the screed.

In some cases, a layer is placed above the screed thermal insulation material- Styrofoam or gravel.

This is followed by priming with bitumen. It covers the screed with a film, as a result of which moisture does not evaporate.

After the cement has hardened, you can start laying the roofing material. It is better to give preference to materials based on fiberglass. Compared to cardboard covers, fiberglass covers are more stable, have a long service life and have better specifications.

Laying starts from the bottom edge of the roof. All subsequent rows are overlapped (minimum 10 cm). The amount of overlap depends on the angle of inclination of the roof slope.

Seams are processed bituminous mastic. After a while, proceed to the next layer. It should be laid in such a way that the seams of two adjacent layers of the coating do not coincide.

When using roofing material, roofing felt or glassine, it is also necessary to install a protective layer. It is made using bituminous mastic. After completing the work protective layer sprinkled with stone chips and rolled with a roller. When using new generation materials, this is not necessary, since they have a protective dressing. It will also not be necessary to coat the seams between the rows.

Repair of a soft roof in the winter season

Sometimes the need for repairs arises in the winter. If the roof started to leak in winter, the only possible solution is to install a patch in place of the leak.

Since it is impossible to lay the rolled waterproofing on a wet base, it is necessary to dry the damaged area with a gas burner.

After that, cut off from the roll right amount material and begin to heat it with smooth movements of the gas burner. Care must be taken to ensure that the heating occurs evenly. On the underside, the welded materials are covered with a special film, the change in the pattern of which is evidence that the material is heated up correctly. A carefully heated piece must be applied to the place of the leak and glued, leveling and tapping with your hands.

To protect the roof in winter, a small layer of snow (about 5 cm) should be left on it. It will protect the roof from negative influences. external factors.

Prices

The cost of repairing a soft type roof depends on the type of work, the degree of damage.

Yes, repair square meter soft roof (excluding the cost of replacing the coating of overhangs and parapets) is as follows.

Repair of the roof in one layer - taking into account the partial (up to 20%) opening of the old roofing carpet, including the cost of materials - will cost 260 rubles per square meter. meter; without materials - 170 rubles per sq. meter

Repair of the roof in two layers, also taking into account partial (up to 20%) opening of the roofing carpet: with the cost of materials - from 430 rubles per sq. meter; without materials - 255 rubles per sq. meter.

Repair of the roof in two layers with the complete removal of the old roofing and partial repair of screeds (up to 20%), taking into account the price of materials, costs from 540 rubles per sq. meter; without materials - 320 rubles per square meter.

CONCLUSIONS

Repair of a soft roof, as well as its installation, is not difficult.

First you need to conduct a thorough inspection of the roof - to identify defects and damage.

By the time of occurrence of leaks, you can determine their nature.

Before the beginning repair work you need to select materials, prepare tools, make calculations and draw up an estimate.

With minor damage, you can limit yourself to current repairs.

In the presence of significant damage and defects, it is necessary to arrange a major overhaul.

During a major overhaul, the old coating is completely dismantled and replaced with new roofing material.

The cost of repairs depends on the type of work carried out, the degree of damage and some other factors.

How to repair a soft roof, see the detailed video instructions.

Soft roofing is quite easy to install and available to the vast majority of developers, which is why it has remained very popular for many years. Unfortunately, nothing lasts forever, and often breakdowns happen to any objects and mechanisms that surround us, and roof cladding is no exception. Repair of a soft roof happens quite often, and the owners of the house have to fix it, sometimes even a couple of times a year people eliminate the defects that have appeared. The only good news is that for such work it is not necessary to involve craftsmen, because the entire restoration process can be done by hand.

A repair plan is usually drawn up after a thorough revision of the roof, which allows you to identify all the problems that have arisen. There are two standard ways to repair roofing:

capital repairs of a soft roof;
ongoing troubleshooting.

Each of these methods is performed using a separate technology, within which it is recommended to use various materials, and in case of urgent need, you can take up work even in winter.

The main reason for the frequent wear of roofing material lies in the properties of bitumen, which is exposed to sunlight and high temperature begins to melt, hence the defects, expressed as swellings and irregularities, affecting the further operation of the structure. The thing is that during precipitation in the formed depressions accumulates rainwater or melted snow seeping through cracks in the bitumen. But even in winter, you can encounter some problems, because during the thaw the snow melts, and when sharp decline temperature, it turns into ice, which expands the cracks in the material and tears it.

To determine if the sheathing needs repair, carefully examine the roof surface. If in some places the waterproofing has peeled off, cracks have appeared, bitumen has swelled up, or depressions or moss have sprouted, repair of the soft roof is inevitable. If the defects are minor, you'll be fine minor repairs and easily handle it yourself.

Current roof repair

Let's make a reservation right away that major repairs can be made not so expensive if a preventive process is carried out every three years. As for the current repair, it provides for minimal cladding errors, and you do not need to dismantle the old rolled materials with dried mastic, which, in fact, require repair. Here you will need to update the existing layer, namely:

elimination of bubbles;
replacement of funnels for water flow;
replacement of parapet covering or cornice overhangs;
covering the old layer with primers;
fusing new waterproofing.

Experienced craftsmen advise Special attention give the most problem areas, which are the joints roofing elements, parapet structures and walls, as well as those areas where drains are fixed. In some cases, you can limit yourself to patches, but they often do not give a sustainable result and are not a guarantee further exploitation roof without leaks.

The soft roof repair technology consists of several stages, namely:

Cleaning the surface of debris, dirt and moss;
Examination of the surface for the presence of rot, and if it is found, such segments must be cut off with the capture of intact material (up to 2 cm on each side);
Leveling irregularities with special mastic, which will require mortar materials such as a cement composition;
Cutting off all bubbles, removing dust, drying the surface and leveling it to firmly fix the patch;
A patch is cut from the new material with an allowance of 5 cm;
Lubrication of the surface with mastic and gluing patches.

We draw your attention to the fact that on the reverse side the patch must be treated with bituminous mastic. Further in the work, you will need a burner, which needs to warm up the patch, after which it is pressed against the press.

Repair over the old coating

In professional circles, such an expression is known as "repair the old way", which means that it is not necessary to dismantle old roofing materials, and defects are eliminated on top of them. This method is much cheaper and easier to implement than the overhaul of a soft roof. It can be easily done with your own hands, so this method is most often resorted to.

Laying new layers on top of old ones

AT this case old roofing materials on which defects have been identified will serve as the basis for a new coating. The final coating can be applied in one or two layers - it all depends on the scale of the disaster and on financial opportunities the owner of the house, but a double carpet, of course, is better and more reliable, since its strength is higher. However, one cannot fail to mention the fact that it is necessary to take into account the possibilities truss system, because here the load on the roof surface increases by 5kg / 1m2 due to the roll lining, and the mastic on which it is glued also gives additional weight. Soft repair roll roofing according to this principle, it is suitable for a roof that is not in a completely deplorable state. If the old roll lining is completely bad, the risk will be unjustified, and it is better to immediately tune in to a major repair. Also, this method should be abandoned if the layers of bitumen laid earlier exceed allowable rate(maximum 6 - 8 layers), again due to the weight of the materials.

Capital repairs of a soft roof

If you have carried out an audit and found that a significant area of the roof has been damaged, and defects reach 60% of the entire surface, patching and mastic will not work here. In this case, only complete dismantling dilapidated damaged cladding and laying soft material in a new way. As a rule, major repairs are resorted to in case of regular and heavy roof leaks, as a result of which the insulation is damaged and loses its properties or the skin freezes.

To minimum set work on the overhaul of the roof can include the dismantling of bitumen and its replacement with new material lubricated with mastic, the replacement of funnels and cornices, the drying of the insulation with the help of special devices, the replacement of the parapet structure. If the condition of the roof is more than deplorable, and the defects have affected the truss system, it will be necessary to update not only the cladding, but also the frame with vapor barrier and insulation, and the order of work will look like this:

We dismantle old materials;
We eliminate screed defects;
We carry out the entire roofing process in a new way.

Do-it-yourself overhaul of a soft roof is best done with assistants, because here you will have to tinker not only with bitumen and mastic, but you will also need to install some roof elements that are difficult to lift alone, let alone fix.

This video shows in detail the entire process of installing the roof. After viewing, you will be able to do all the work yourself.

Our article describes soft roof repair technology + video. We touched on the most frequently asked questions on this topic. Describe the types of repairs and how they are carried out.

There are several answers to the question of how to repair a soft roof. Everything will depend on the amount of damage and their complexity.

Typically, repairs are divided into two types:

Current - damage to the roof cover is less than 40% of the total roof area.
Capital - damage is more than 40% of the roof area.

No matter how strange it may sound, but the main reason for the leakage of roofs made of soft rolled materials is the destruction of the bituminous layer, which provides waterproofing properties of this material.

It is not difficult to repair the soft roof of the garage with your own hands, since this building has small size. But on other buildings, these works will not take much time and effort, especially when it comes to current repairs.

Actually roll coatings for roofs are considered the easiest to install. They do not require any special equipment or skill to install.

As mentioned above, before starting work, it is necessary to determine the amount of damage. How it's done? We need to climb to the roof and examine the coating. What to look for?

In places of overlap and connection of the panels, there may be visible delaminations;
There may be visible depressions and pits on the roof surface that can hold water;
In places where water stagnates, it should be examined for decay of the material, the appearance of moss or fungus;
Blisters on the surface of the roofing cover indicate that moisture has penetrated inside in this place;
The presence of visible mechanical damage, abrasions, cracks, breaks.

After inspecting the roof, it can be concluded what type of repair will be needed. Based on this, an estimate is made for a soft roof. What does it include?

Advice! To draw up an estimate, it is not necessary to call a specialist, you can do it yourself. But if you are not confident in your abilities, then of course you should contact the appropriate firms.

If the repair work will be carried out by a team of specialists, then first of all they will indicate the list of works, namely:

Full or partial removal of the old roof.
Preparation of the surface for the subsequent installation of the roofing.
Installation of the top layer of the roof and coating of seams.
Waterproof top layer.
Combustible materials for the burner.
Consumables and their delivery.

If it is decided to carry out repairs independently, then the estimate will include only the cost of the material used and its delivery.

Those who have not yet decided whether they will do it themselves or hire workers can contact a roof repair company. By providing them with the following information, you can find out approximately how much the repair will cost.

Roof plan with all dimensions, to calculate the amount of material.
Lengths of cornice overhangs, junctions with walls and parapets, thickness and height of the latter.
The presence of shafts on the roof, their number and size.
The presence of pipes and other elements on the roof, their sizes and quantities.
The condition of the roof, it is desirable to take photos.
Approximate list of repair works.
What roofing material will be used.

SNiP rules

Work should be carried out in accordance with:

SNiP soft roof 12-03-2001.
SNiP 12-01-2004 "Organization of construction";
SNiP 3.03.01-87 "Bearing and enclosing structures";
SNiP 3.04.01-87 "Insulating and finishing coatings";
SNiP 12-03-2001 "Labor safety in construction" part 1. General requirements;
SNiP 12-04-2002 "Labor safety in construction" part 2. Construction production;
POT R M-012-2000 " Cross-industry rules on labor protection when working at height”;
SNiP soft roof repair 11-26-76 (1979).

Although many of those who perform roofing repairs do not always comply with them. This is due to the fact that most of the above rules were developed back in Soviet time. Much has changed since then, including materials and technology.

For your information: ignorance of these rules does not affect the quality of work. If the workers know their job well, roof repairs will be completed quickly and reliably.

Repair and installation of a soft roof should begin with the preparation of the base on which the material will be laid.

If we talk about the current repair, there are several options. Can be done partial replacement(patches) and repair in the old way (1-2 layers of new material are laid on the old cover).

If patches are placed, all defects are removed in the places where they are laid (cut down or pierced). Then the surface is cleaned of debris and dust, poured with bituminous mastic or sealant.

A piece of roofing material or other rolled material is laid on top. In size, it must exceed the size of the repaired surface.

The edges are carefully smeared with bituminous mastic. But this method usually does not work. Therefore, many use the following method of current repair - “the old way”.

A soft roof for a garage and not only, during current repairs, it can be laid without removing the old cover. With this method, it should be borne in mind that the fusing of two more layers will lead to an increase in the load on the roof.

So it’s worth first finding out how much weight the walls and floor supports can withstand.

For example, the following calculation can be given: on average modern materials have a mass of 4-5 kg / m 2, if the roof area is 1000 m 2, the load on the roof will increase by another 5 tons. And so, instead of the base, they use the old roofing.

It is pre-cleaned of debris and dirt. Installation of a new layer is carried out in the usual way. This method cannot be used if the previous covering is badly damaged, there are already more than 8 layers of old material on the roof.

Typically, during a major overhaul, complete replacement roofing material, partial renovation bases (screeds) and parapets, replacement of cornice overhangs, aprons adjoining, fencing, revision and repair of water intakes and drains.

But sometimes the roofs are in such disrepair that they have to be not only repaired, but practically built from scratch. Naturally, this affects the cost of work.

Overhaul of soft roofing is carried out in the following order:

Removing the old cover.
Foundation repair.
Laying a waterproofing layer.
Installation of insulation (if necessary).
A screed is being made.
Roofing material is being laid.
A protective layer is laid.

To complete the work, you will need gas-burner, roofing material, a knife for cutting roofing material, sealant or bituminous mastic, a broom for surface cleaning, cement for screed, insulation, overalls.

Capital repairs of a soft roof begin with the removal of the old coating.

For this process, such as, you can use special equipment (the machine removes the coating and immediately rolls it into a roll) or an ax (for convenience, the wooden handle is changed to metal pipe, its length is chosen individually, according to the height of a person).

If there are no large dents and cracks in it, but only minor damage, then the screed can not be poured. Sometimes the screed is preceded by a layer of insulation. It can be foam, a layer of gravel or other heat insulator.

In the first hours after laying the cement layer, the surface is primed with bitumen, which covers the screed with a thin film and prevents the evaporation of moisture from it.

After the cement has hardened, you can start laying the roofing material. The composition of the soft roof is different, but it is better to use materials based on fiberglass.

They have a longer service life and higher technical characteristics, in contrast to cardboard-based coatings.

Laying starts from the bottom edge of the roof, gradually rising up. Each subsequent row is overlapped (from 10 cm). The greater the angle of the roof slope, the more value overlap.

For roofing felt, glassine and roofing felts, a protective cover made of bituminous is mounted. It is then sprinkled with stone chips and rolled with a roller.

Advice! When using the latest generation materials, the seams between the rows are not smeared and they are already covered with a protective coating on top. Therefore, less material is wasted.

As you can see, the technology for repairing a soft roof is not very complicated. Two people are enough to complete the work. The choice of materials is entirely up to you.

But I would like to remind you, do not forget to audit the roofing at least once every three years. After all, fixing minor flaws is much easier and cheaper than completely covering the roof.

Soft type roofing is widely demanded due to its convenience, practicality, ease of installation and low cost. This coating is sufficiently resistant to aggressive influences. external environment, however, does not have outstanding durability. Therefore, the repair of a soft roof, the technology of which may be different, has to be carried out every few seasons.

How to determine the need for repairs

Waterproofing properties of a soft roof are provided by a layer of bitumen with which it is covered. If, over time, under the influence of external factors, a violation of its integrity occurred, then this clear sign the need for repair, the technology of which may differ depending on the severity of the damage.

Advice! You should not bring the soft roof to such a state that it will no longer be able to keep moisture from getting inside the room. It is best to carry out a preventive examination at least once every two years.

You need to pay attention to the following signs indicating that the time has come for repair:

Peeling of the soft roof in places where the panels overlap and join;
Visible pits and depressions in which water can be retained;
Moss or fungus in places where water stagnates after precipitation;
Blisters on the surface, indicating the penetration of moisture under the roofing;
Noticeable mechanical damage, cracks, rips.

Types of repair work

Depending on the condition of the coating, how worn it is, what damage it has, restoration measures are divided into two types:

Preventive (current) repair of a soft roof. It is resorted to, according to technology, with minor damage to the canvas that does not provoke a global violation of the tightness of the roof. Characteristic features the need for such repairs - local delaminations, microcracks and small gusts that can be easily eliminated without dismantling the entire soft cover. At the same time, such defects should occupy less than 40 percent of the total roof area;
Capital repairs of a soft roof. The need for large-scale repairs and the use of more sophisticated technologies is evidenced by the presence of multiple damages in the form of blisters, deep cracks, severe delaminations, leaks, and ruptures. At the same time, they should affect more than 40 percent of the entire soft roof area.

Current repair of a soft roof

If during the inspection no critical damage was detected, indicating the impossibility of further operation of the old roofing, then work is usually carried out to eliminate existing defects and restore the integrity of the sheet. This is the so-called current repair of a soft roof, the technology of which allows you to quickly restore all the affected areas of the roof. In this case, as a rule, swollen areas are cut off, water inlets, cornice overhangs are changed, a primer layer is applied and, where necessary, a new roll material is welded.

The repair technology provides for the following work algorithm:

The roof surface is thoroughly cleaned of accumulated debris, moss and any foreign objects;
The roof covering is checked for rotten areas. If the latter are found, then they are removed. This also captures a few centimeters of intact coating;
The swollen areas are cut off with the capture of a small amount of the whole material;
The places where the roof has been removed are cleaned of dust and dirt, primed and filled with a cement-based mortar;
After drying, patches are applied to these areas, which are abundantly watered from above with bitumen mastic. In this case, the territory of the entire coverage is certainly captured;
Finally, a new roofing material is welded on.

Attention! old technology less labor-intensive, however, it has one significant drawback - an increase in the weight of the roof. Therefore, it should be applied only after a miscalculation of all risks and a comprehensive assessment of the strength of floor structures. This technology used primarily to reduce repair costs. By ignoring the operation to remove the old coating, it is possible to reduce the size of the budget by about 30 percent.

Capital repairs of a soft roof

In the event that the old coating is not suitable for further use due to critical damage, it is replaced with a new one. The overhaul of a soft roof, the technology of which is more laborious than the current one, provides for the following work procedure:

The damaged coating is dismantled. This is a rather laborious procedure that is very difficult to perform manually. It is convenient to use a special machine for this, which cuts the web and immediately twists it into a roll. In the absence of such, the technology makes it easier to work, due to an ax with a long metal ax handle;
After cleaning the surface from worn roofing material, the state of the base is assessed. If there are cracks, dents, potholes and other defects, a partial repair or complete replacement of the roof screed is performed. If there are heat and waterproofing layers, then at this stage the technology also involves their thorough inspection and, if necessary, repair. To increase the service life of the insulation, it is recommended to cover it with plastic wrap or a membrane with a vapor barrier function;
The surface is primed with bituminous mastic, which protects the vapor and heat-insulating layers, as well as concrete screed from getting wet, and contributing to higher adhesion of the base with the material of the soft roof;
A new canvas is laid starting from the lower edge of the roof. Installation of cuts of material is carried out alternately, with an overlap on each other by no more than 15 centimeters. In this case, the angle of inclination of the roof should be taken into account: the smaller it is, the greater the overlap should be, since with a more sloping slope, water drains quickly, and with a gentle slope, it lingers, which increases the risk of moisture seeping inside;
When the laying of all parts of the roofing material is completed, all the seams between them, according to the technology, are well coated with bituminous mastic;
If necessary, after the bitumen has dried, the technology allows the installation of a second coating layer. It is important to lay the sheets in such a way that the joints are located as far as possible from the joints on the lower web;
If materials such as roofing felts or roofing felt are involved in the repair, then it is advisable to additionally apply a protective layer on top of them using the same bituminous mastic. In conclusion, it should be sprinkled with crushed granite crumbs and compacted with a roller. The materials of the new generation already have shale powder, therefore, in additional protection they don't need. The advantage of using the latter also lies in the fact that there is no need to use mastic for greasing the seams: small overlaps of the cuts are qualitatively and reliably welded onto each other;
The final stage, carried out after the completion of the repair work, is the identification of places where water accumulates, which will be the most vulnerable in the future. The technology involves such a check after the first rain, although you can pour water on the roof yourself. If such places are identified, they should be thoroughly dried, and then an additional layer of material should be applied to them. If necessary, you can still pour them abundantly with bituminous mastic, which will serve reliable protection leak proof coatings.

There is another soft roof repair technology, which is not so popular today, however, in the old days it was used very actively. Its essence lies in the fact that a new layer is simply deposited on top of the old coating. To do this, all contaminants are carefully removed from the exploited surface, after which it is well warmed up with a heating pad and smeared with bituminous mastic. On the final stage repair, a new layer of roofing material is welded.