Types of repair of a soft roof of a roof. Soft roof repair technology. Situation # 3 - elimination of defects in bituminous roofing

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 the 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.

In fact, rolled roof coverings 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, scuffs, 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.
waterproofing upper 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.
Which 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. Partial replacement (patches) and repairs can be performed according to the old one (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 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 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 perform the work, you will need a gas burner, roofing material, a knife for cutting roofing material, sealant or bituminous mastic, a broom for cleaning the surface, cement for screed, insulation, and 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 wooden handle change 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 specifications, in contrast to coatings based on cardboard.

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 roofs, due to their specificity, require regular maintenance and care. It is “softness” that is the main drawback - this type of roof is poorly protected from mechanical damage. The destruction of the waterproofing layer even in two or three places leads to the fact that after a while most of the roofing carpet becomes unusable. But such roofs are usually distinguished by good repairability and it is not too difficult to restore the roof.

If no more than 40% of the roof is damaged, current repairs (restoration of damaged areas) can be dispensed with. If more, a major overhaul is needed, involving the removal of the old coating and the flooring of a new one.

Soft roof defects

To detect damage to a soft roof, you do not need to do complex examinations, a careful examination of the surface is enough. Possible violations roofing:

Explicit delamination at the joints.

The presence of holes and depressions in which water can accumulate. In these places, corrosion processes, the appearance of fungus or mold are possible.

Cracks, serious abrasions, tears, mechanical damage.

Bloating. This is usually evidence that moisture accumulates under the coating in this place, therefore, there are violations of the integrity of the waterproofing layer.

Building materials and equipment for repair work

Before proceeding with the repair, it is necessary to carefully calculate the amount of necessary roofing material and draw up a detailed work plan. This will significantly reduce the repair time. To restore the roof you will need:

Gas cylinder, reducer and burner.
Vacuum cleaner (industrial), estimates.
Mounting cutter.
Spool (pipe).
Putty knife.
Roulette construction.
Axe.
Stick for rolling.
Bituminous mastic.

If a major overhaul of a flat roof is necessary, you may need to do a cement-sand screed in places or completely. You will need soil, sand, cement and water.

The modern market of roofing materials offers just a huge selection of rolled roofing materials. Some of them:

For the device of the top layer - Isoelast, Linocrom, Uniflex, Isoplast.
For the device of the lower layer - Technoelast, Bireplast, Isoplast, Uniflex.

The materials of the outer layer are coated with mineral particles that protect from sunlight. The thickness of the roll materials of the outer layer is 4.5-5 mm. Thickness similar materials inner layer - 3.5 mm.

SNiP

When conducting restoration work on soft roofs, it is necessary to be guided by the following documents:

SNiPII-26-76
SNiP 3.04.01-87
SNiP 3.04.01-87
SNiP Roofing Soft 12-03-2001

All documents regulating the conduct of roofing work should be carefully studied. However, it must be remembered that these regulations taken a long time and some points are hopelessly outdated.

Technology and sequence of do-it-yourself repair work

The sequence of works on repairing a roof from a soft roof depends on the roofing material you use. It can be both rolled welded materials and flexible tiles. Technologically, their laying depends on (flat and pitched).

flat roofs

Any repair of any surfaces begins with the preparation of the base. It is very important to always follow this point, otherwise even the most cutting-edge roofing materials will not last even half of the time they should last.

Maintenance can be done in two ways:

partial replacement of the old roofing carpet;
laying new layers of roofing over the entire area on the old coating.

If you are going to just patch the roof, you need to cut down all the damaged places. Thoroughly clean the surface under the patches, remove dust and primer. Pour hot mastic and glue a new roll coating on it. The area of the patch must be at least one third larger than the restored surface. The edges are carefully sealed.

Such repairs are justified with a very small amount of damage to the roofing. At best, your patch will last 3-4 years.

On small roofs, it is quite possible to produce without removing the old one. If such repairs have already been carried out, it must be taken into account that each layer of roofing increases the load (approximately 1.5-2 kg per sq. M).

Making sure that your roof is able to support it and that the old roofing carpet is not in a deplorable state, you can start preparing the foundation. Having eliminated the defects and cleaned it, lay a new soft roof in two layers in the usual way, depending on the material.

Overhaul usually includes not only the dismantling of the old roofing, but also the repair of all roof elements - fences, parapets, gutters and water inlets. If necessary, a partial screed or screed of the entire roof area is made.

You can remove the old coating using a special machine, or you can use the old-fashioned way - with an ax and a metal spatula or scraper. The base, no matter what you are going to do next, must be cleaned of dust, dirt and degreased. If there are no serious defects on it - pits, holes, large potholes, you can do without a screed. But it is still necessary to partially restore the base - it is desirable that the surface be even, dry and clean.

Rolled welded roofing materials today are made of durable materials (polyester, fiberglass) with the addition of modifiers. Both sides are covered with a polymer-bitumen composition. The top layer is protected with mineral powders, and the bottom layer is covered with a special film.

Service life, depending on the modifier, ranges from 10 to 30 years. A well-done repair will keep your roof protected from the elements for decades to come. Roofing on flat roofs is done in several layers.

Installation of roll materials quite simple - the lower bitumen layer is heated with a gas burner, glued to the base and rolled. The rolls are rolled out with an overlap of 15 cm, the joints are carefully glued. The second layer is mounted across the first. As a result, you get an almost complete coverage. Special attention when installing the roof, attention should be paid to sealing the junctions to vertical elements roofs.

For more information about the technology of carrying out repair work using welded materials, see the video.

pitched roof

Soft roofs (flexible tiles) on pitched roofs come into fashion. This type of roofing has a number of undeniable advantages:

Long service life (up to 50 years).

Low windage, such roofing not even a hurricane will break.

High sound insulation.

Zero waste. No more than 5% of the flexible roof gets into waste, even on roofs of complex configuration.

In addition, roofs covered with flexible tiles look original and impressive. The basis of this coating is high-strength fiberglass. Flexible roof tiles surprisingly easy to and .

Despite the excellent performance, such a roof may also need to be repaired. To replace a significant section of the roofing carpet, you will have to re-lay the entire slope. But this happens extremely rarely (for example, in the event of a tree falling on the roof).

Small cracks or blisters can be easily repaired with roofing adhesive. To replace a coverage fragment, you need to:

Lift the tile above and remove the damaged one.
Pull out the fastening nails with a nail puller.
On the new tile Apply roofing adhesive in an even layer.
Install it in place, secure with additional roofing nails.
Apply roofing adhesive to the top piece at the overlap.
Press the repaired section of the roof for a while.

Repair cost

In the case when you make repairs with your own hands, it is worth making a preliminary estimate before starting work. Knowing which roofing material will be used for repairs and its price, it is possible to determine the cost of repairs with great accuracy.

If you not professional builder, you are unlikely to be able to take into account the transport costs and the cost Supplies, but this slightly increases the cost of repairs. On average, current repairs will cost you from 60-80 rubles per square meter, capital will cost more than 200 rubles. Construction services will increase costs by 2-2.5 times.

Small-sized soft roofs can be repaired without hiring professional roofers. The installation of such coatings is quite simple, but you will need care and accuracy when carrying out work - the roof does not tolerate hack work. Another mandatory condition is reliable insurance. Don't forget that any roofing This is top notch work.

Soft roofing, due to its low cost and ease of installation, remains quite popular today. However, it has to be repaired more often than others. Let's see how the repair takes place and what materials are used for this.

When repairs are needed

The most obvious and indisputable evidence that the time has come to repair the roof is the appearance of water on the walls and ceiling. But this is already an extreme case, which can be accompanied by a number of unpleasant events, including a short circuit in the power grid. It is clear that it is better not to bring the roof to such a state, and for this it must be inspected twice a year. If this is not possible, you can reduce the frequency of inspections to once a year, but not less often. The following signs should cause concern:

It is extremely important to clean the soft roof in a timely manner from branches, other heavy debris, materials left after construction or repair work. All this, under the influence of its own weight, eventually begins to "sink" in the roofing, deforming it and violating its integrity.

Particular attention should be paid to the junction of the roof to the skylights, skylights, chimneys and ventilation pipes passing through it.

If the roof has already leaked, you should not immediately start repairing the area directly above the leak: the roof must be carefully examined, since the defect can be located at a distance of up to several meters from the place where water appeared on the ceiling.

Types of soft roof repair

Works on the restoration of the roofing "pie" are divided into the following types:

Emergency repair. It is produced unscheduled on an emergency basis, when the defects present can clearly lead or have already led to leaks. In the overwhelming majority of cases, only the top coating is affected, the damaged fragment of which is replaced with a new one or, more often, covered with a patch. Usually the area of the reconstructed area does not exceed 20% of the total area of the roof.
Maintenance. It consists in the elimination of potentially dangerous defects identified during a scheduled inspection. Usually, the matter is also limited to the manipulation of the top coating, which is either patched up or partially replaced. The area of repaired areas rarely exceeds 40% of the roof area. Routine repairs are recommended to be carried out annually, since the elimination of defects on early stage in the case of a soft roof, it can save a lot.
Capital repairs. It is produced when the proportion of problem areas on the roof surface exceeds 40%. The work covers the entire roofing "pie" as a whole, including the restoration of the vapor barrier. Top Coat for the most part is replaced with a new one.

Overhaul is a rather expensive undertaking, which may well exceed the cost of the device new roof(the difference in price is due to the dismantling and garbage disposal).

Preparation for the repair of a soft roof

During the repair of the roof, the building becomes vulnerable to precipitation, so it is extremely important to prepare so that the work is completed quickly and, as they say, without a hitch. On the this stage a number of issues should be taken care of.

Budgeting

If you have a detailed estimate during the repair process, you will not have to spend time on additional purchases of something extremely necessary that was overlooked. When compiling this document, you should think everything over very carefully, so that it provides for absolutely all types of work and materials, down to the most insignificant. Along the way, the estimate will allow you to objectively assess the upcoming costs and compare them with real financial opportunities.

If it is decided to entrust the repair of the roof to a third-party organization, then in order to draw up an estimate, she will need to provide the following information:

a roof plan with dimensions, which indicates all pipes, shafts, parapets on the roof (thickness and height must be indicated), cornice overhangs (adjacency zones must be shown);
description or photographic images of defects;
desired list of works;
the name of the material that it was decided to use as a roofing.

Selection and purchase of materials

Nowadays, it is possible to purchase any material and in any quantity without problems. But the master should take into account that in the development of roofing, as in all other areas of human life, there is a rapid development, and in order to spend money wisely, this issue should be more or less understood. Let's start with the fact that the familiar roofing material with a cardboard frame has long been recognized as obsolete. It was bypassed by analogues with a foil base - folgoizol and metalloizol.

Folgoizol is a multilayer material

But these materials are far from ideal: bitumen in its pure form does not tolerate frost and temperature extremes, it is “not friendly” with ultraviolet radiation. The mastics used for gluing bituminous roll materials are also short-lived: the sun's rays quickly make them brittle. As a result, the only advantage of such coatings - low cost - is completely canceled out by the cost of major repairs, which have to be carried out every 5–7 years.

Those wishing to have a roof with a longer service life should pay attention to modern materials.

Bitumen-polymer roll coatings

Thanks to polymer additives, volume fraction which varies up to 12%, bitumen becomes more plastic and does not crack much longer: the service life is 15–20 years. Fiberglass, fiberglass or polyester film is used as a frame. This group of materials includes:

Materials with additives of thermoplastics, thermoplastic elastomers, crumb rubber and elastomers, which are considered very promising, should be singled out as a separate subgroup. These include:

dnepromast;
filizol;
thermoflex;
dneproflex;
luberite;
elabit;
glass mast T;
atakton;
mastoplast;
isoplast;
bicroelast;
bicroplast, etc.

Bitumen-polymer materials, due to their durability, reduce the cost of maintenance of a soft roof by 2 times. At the same time, they inherited some disadvantages from bituminous materials:

the coating must be laid in several layers (3-5);
a protective powder of stone chips is required;
in hot weather, the coating softens greatly and, if the roof slope is more than 25 degrees, it can slip.

Roll materials made of petroleum resins or rubber

The most advanced option has the following advantages:

laying is done in one layer (the second name is single-layer membranes);
does not soften in the heat, so it can be laid on roofs with any slope;
the width of the roll can be up to 15 m, so that the coating has very few seams;
can be installed in winter;
the material is elastic and very durable;
resistant to frost and ultraviolet radiation, does not oxidize;
has served for over 25 years.

The material can be glued with special glue or bitumen (some brands are available in self-adhesive versions), fixed with threaded fasteners, or simply sprinkled with a layer of rubble.

The roofing membrane is made of ethylene propylene rubber and polypropylene (approximately 30% of the total composition)

Due to single-layer laying and a significant service life of the membrane, the cost of installing and maintaining a roof is reduced by 4 times compared to bituminous.

Rubber and polymer membranes are successfully produced in Russia. As an example, we can cite the materials of "Kromel" (JSC "Kirovskiy Kombinat artificial leather”) and Rukril (Chemical Plant JSC in Rezha near Yekaterinburg), as well as products of Nizhnekamskneftekhim JSC.

Liquid materials (mastics)

AT this case we are not talking about adhesive mastics, but about bitumen-polymer and polymer compositions, with the help of which self-leveling roofs are made. In everyday life they are often called " liquid rubber". The base material is mixed with a hardener and in this form is applied to a flat surface. After some time, the liquid turns into a strong, elastic, rubber-like coating, on which there is not a single seam.

The maximum elongation of the material is 1000%, so it retains its integrity even when the roof is deformed.

Liquid rubber is based on bitumen, and the material can be applied with a brush, which makes it convenient to use.

Mastics are resistant to weather factors, including low temperatures and UV radiation, and their service life depends on the composition:

bitumen-rubber - 15 years (for example, "Venta-U", "Gekopren", "Elamast");
bitumen-latex - 20 years ("Blam-20", etc.);
butyl rubber and chlorosulfopolyethylene - 25 years ("Polikrov-L", "Polikrov M-120", "Polikrov M-140", etc.)

Liquid roofing materials tolerate deformations, temperature changes and ultraviolet radiation well.

An important advantage of self-leveling roofing is their low weight - from 2 to 10 kg/m 2 .

If laying is carried out on a roof with a large slope and at temperatures above +25 0 С, cement or other thickener must be added to the mastic.

Mastics are safe for health, as they do not emit harmful volatile substances. For application, the method of cold spraying is used, which excludes the possibility of ignition.

Instrument preparation

Soft roofing cannot be repaired with bare hands, so you need to arm yourself with the following tools:

Work with a gas burner must be in protective glasses.

Soft roof repair technology

The method of roof restoration depends on what defects were identified.

Bonding a peeled-off panel

The operation is carried out in stages:

The detached fragment rises. The underlying base or roll material is cleaned of debris and thoroughly dried. building hair dryer.
The base is smeared with bituminous mastic and the exfoliated panel is glued.
From above, the restored seam is also smeared with mastic.

Bituminous mastic can be made independently. It is applied in two forms:

cold: to repair the inner layers;
in hot: as an outer coating.

For cooking cold mastic you will need the following ingredients in a ratio of 1:2:2, respectively:

pulverized filler (lime, gypsum, ash);
bitumen;
petrol.

First of all, you need to heat the bitumen to 180 º C and hold it until all the water it contains has evaporated. After that, the components are mixed, the mastic is cooled and used for its intended purpose.

A small amount of bituminous mastic can be prepared independently

It is impossible to pour gasoline into heated bitumen, just the opposite - bitumen into gasoline.

To prepare hot mastic, bitumen is heated in a boiler to 200 º C and boiled, gradually adding filler. Stirring can be done with a stick. It is important that the bitumen temperature during mixing does not fall below 160 º C, otherwise the quality of the material will be extremely low.

Mastic should be used immediately after preparation, it can not be stored.

The patch is installed in the following order:

The damaged area is cut down with an ax. If the defect looks like a bubble, it must be cut crosswise and dried, bending the resulting "petals". After drying, they are returned to their place, glued with bitumen or nailed.
Further, all debris is removed from the coating area adjacent to the defect, after which it is cleaned from dirt and dust.
The defect, together with the area adjacent to it, is filled with bituminous mastic or sealant.
A piece of roll material is glued on top, which should good stock cover the damaged area.
The patch is filled with bituminous mastic or sealant, which must be rolled over it with a roller. The distribution is carried out so that the filling has the greatest thickness at the edges of the patch.

The sequence of operations when installing a patch on euroroofing material

Roof patching - not the best reliable way repair, because it does not cover hidden defects. Experienced craftsmen they try to apply the method, although more expensive, but one hundred percent effective - "repair the old way."

Video: minor roof repairs

"Old Renovation"

The worn roof is completely covered with a new coating without dismantling the old one. Before that, it needs to be put in order - cleaned of debris and dirt, sweep away dust.

Before such repairs, it is necessary to assess whether the structures can withstand the weight of the old and new coating. In any case, the number of layers on the roof should not exceed eight.

Video: roof repair "the old way"

Overhaul

With significant damage to the roof, even "repair the old way" becomes impossible. In such a situation, you should resort to major repairs. In the most advanced case, it will consist of the following steps:

Removal of old roofing.
Screed screed.
Dismantling the heater.
Restoration or replacement of the vapor barrier.
Repair of the internal drainage system.
Insulation lining.
Surface finish required slope with sand bedding.
Installation of funnels of the internal drainage system.
Laying cement-sand screed. To prevent the water from evaporating from the solution, it can be covered with bitumen after installation.
Installation of roofing (the screed is treated with a primer before this).

The rolls are rolled out parallel to the lower edge of the roof, starting from the bottom. Each subsequent strip overlaps the previous one with an overlap of 10 cm. With significant slopes, the amount of overlap must be increased. The edges of the strips are treated with bituminous mastic.

The next layer is laid with bandaging of the seams, that is, so that the new strips cover the edges of the strips of the underlying layer.

Before laying the last, top layer, it is recommended to fill the roof with water and see if there are puddles left somewhere. If there are any, they are marked with chalk, after which the water is driven off and the roof is dried. Further, the marked areas are poured with hot mastic or an additional piece of rolled material with a thickness of not more than 1 mm is laid on them.

The work is completed by applying a reflective or fire-retardant coating. traditional materials- roofing material, glassine or roofing felt - you need to cover it with hot bituminous mastic on top, and then sprinkle with stone chips. It is pressed into the bitumen with a roller. New materials usually already have a protective powder.

It is clear that if some elements or layers of the roof are in a satisfactory condition, the work associated with them can not be performed. In a good scenario, major repairs may be limited to replacing the roofing with a small local repair of the base and minor repairs some elements.

If a third-party organization was engaged in the repair of the roof, then one more stage is added to the list - checking the quality of the work. Here's what a homeowner needs to look out for:

Correct laying of panels. They should lie evenly, with a uniform over the entire length and not too much overlap.
The tightness of the edges of the coating to the base. Strong wind undermines the roof precisely at the edges, so it is extremely important that they are very carefully and securely glued or fused.
Leaks during rain. At first, the ceilings on the upper floor after each rain should be carefully inspected for water leakage. Reputable roof repair companies and crews usually give a guarantee on their work, so if a leak is found, the customer has every right to demand that the defects be corrected.

Before contacting a third-party organization, it would be useful to study regulations regulating the installation of soft roofs. First of all - SNiP II-26-76 "Roofs" (section "Roofs from rolled and mastic materials"). Of course, in some small things they lag behind life, in particular, they do not take into account the appearance on the market latest materials, but most of the recommendations presented are quite relevant.

Video: overhaul

Emergency repairs in winter

Most of the materials used for the installation of a soft roof for installation with low temperatures not calculated. But emergency situation may well happen in winter: the roof can be damaged a large number of snow, heavy blizzard or ice movement. The following tips will help you carry out emergency repairs:

First of all, the roof must be freed from snow, but in such a way as not to damage it even more. It is best to use a rubberized scraper for this purpose.
For temporary patching of holes, materials that do not brittle in the cold should be used. Of these, the most affordable are corrugated board and metal tiles. If a decision is made to make a patch of bituminous material, it must be kept in a heated room until the last moment. When frozen, it will crack when unwrapped.
There are varieties of sealants designed for use at low temperatures - and they should be used.
We must not forget that it gets dark early in winter, so you should take care of lighting the work site.
The equipment should provide for the possibility of a sharp deterioration in the weather, it is also advisable to get an assistant.

In winter, before the start of repairs, it is necessary to clean the surface of the roof from snow.

Video: soft roof repair technology

Due to its low strength, soft roofs have to be repaired quite often, but today the situation can be significantly improved by using the latest materials. The main thing is to follow the safety regulations governing the work at height. The place where the dismantled materials will be dumped must be fenced off and marked with warning signs.

The service life of a roof covered with soft roofing materials is 15 years. But the roof will last this period only if it is properly maintained and sometimes repaired. Therefore, today we will talk about how to properly repair a soft roof. What nuances should be paid attention to in order to increase the quality of the final result. Accordingly, so that the roof lasts longer.

Soft roof repair

Soft roof defects

Understanding that a roof needs repair is easy. It will just start flowing. Therefore, first of all, you need to climb the roof and determine its possible defects. True, you should not allow situations with leaks. It is recommended that the soft roof be inspected periodically. Experts advise doing this twice a year.

So, what defects can be found:

cracks and breaks in roofing material;

its swelling from the penetration of moisture under the canvas;

delamination of material at the joints of the strips;

the appearance of mold, fungus or moss, which indicates the collection of moisture in these areas;

depressions or grooves from mechanical pressure where moisture collects.

Soft roof defects

The choice of repair material

To cope with all of the above flaws, it is necessary to prepare a material for repairing a soft roof, as well as a fastening compound. Since the structure of a soft roof consists of two applied layers: internal and external, respectively, the repair material for each of them must be selected separately, taking into account the characteristics of the products.

For the lower layer, roll coatings with high thermal properties and increased elasticity are usually used. This group includes such materials as technoelast, glass-elast and bireplast. They are smooth with a thickness of 3-3.5 mm. For the top layer, they try to use a material with high waterproofing qualities. For example, uniflex, isoplast or isoelast with a thickness of 4-4.5 mm.

We must immediately make a reservation that the top coating requires products sprinkled with stone chips on top. It protects the roof from the sun's rays. Basically, this is distinguishing feature, which becomes the basis for the selection of materials for the bottom layer and outer cover.

Uniflex roll

Choosing a bonding agent

More recently, ordinary bitumen was used to repair soft roofs (roofs). It was heated in a barrel on a fire and served hot at the place of laying soft roofing material. We must pay tribute to the fact that this technology has not yet become obsolete. There are areas where bitumen is still used for roof repairs.

Modern restoration of a soft roof is the use of bitumen-based mastics. At the same time, mastics can be used both hot and cold.

Bituminous mastic

On our website you can find contacts of construction companies that offer a turnkey roof repair service of any complexity. You can directly communicate with representatives by visiting the exhibition of houses "Low-Rise Country".

Repair features

The first stage is the determination of defects in the roofing and the amount of work to be done. According to the complexity and volume, repairs are divided into three categories:

current, when minor flaws are found on the surface;

capital, when it becomes clear that sealing cracks is indispensable;

emergency, when the roof began to simply leak.

Let's consider each situation separately.

Maintenance

The easiest way to repair cracks. They are simply filled with mastic or hot bitumen, and a patch cut from roofing material is laid on top. After that, the place of repair is completely filled with a fastening compound. The main thing is that the mastic also covers the junction of the patch with the main roofing material.

If it is required to close a crack on the roof ridge, then for this a patch is cut out, which is glued to the place of the defect with mastic and additionally pierced with nails.

How to patch a crack on a skate

Peeled joints are also repaired, but for this they additionally use a building hair dryer or gas burner. Both types of equipment are used to dry the space under outer layer soft roof.

The latter is lifted, the inner surface of the upper flooring and the upper plane of the lower layer are dried.

Bituminous mastic is applied between the layers.

Lay the top layer on the bottom and press it well, using, for example, a spatula or roller.

The joint must be coated with mastic.

A defect in the form of a depression where water collects is repaired using a special technology.

To do this, you need to cut the place of the flaw sharp knife in the form of a cross. It is better to make cuts to a solid base.

Here the hole is filled, for example, with cement mortar.

After drying, the base is treated with a bonding mixture, on which the cut ends of the lower layer are laid.

The bottom flooring is treated with mastic from above.

Lay the cut ends of the outer covering.

Another layer of mastic is applied, which is immediately sprinkled with stone chips on top.

How to repair a cavity on a soft roof

On our website you can get acquainted with the most from the construction companies presented at the exhibition of houses "Low-Rise Country".

If the soft roofing material has been laid on a solid lumber batten or wood boards, then the cavity is sealed with the mastic itself or hot bitumen by pouring onto the bottom layer.

Capital

Now let's talk about the technology of repairing a soft roof, where simple operations in the form of patches are indispensable. The essence of the overhaul is that the old roofing is partially dismantled in those areas where the defects are significant. For example, the photo below shows the condition of the roof covered with shingles. This area needs a major overhaul.

Roof defect requiring major repairs

The essence of the technology lies in the fact that the soft roofing material is carefully removed from the installation site. The main thing is not to damage areas that are in good condition. If rolled material was used to cover the roof, then it is cut along the boundaries of the defective area. It is better to do this in straight straight lines, even if you have to dismantle part of a good site.

If a roof covered with soft tiles, you will have to remove the shingles that have actually become unusable.

Ideal - cut the coating to the base. If the roof is insulated, then check the condition of the thermal insulation material. If it was expanded clay, then it is simply dried with a building hair dryer. If the slab material is made of mineral wool or expanded polystyrene boards, then they are dismantled and replaced with new ones. Because the moisture that has passed through the roofing has probably ruined the insulation.

Be sure to check the base. As in the case of a cavity, it will have to be cleaned and leveled.

The repair process itself is carried out using the technology of installing a soft roof. That is:

mastic is poured onto the repaired base;

the bottom layer of roofing material is laid;

on top of another layer of mastic;

outer cover.

Capital repairs of a soft roof

It is important to make sure that the new layers overlap the old ones. And at the docking points, mastic is sure to be used. It itself performs the functions of both a bonding composition, and waterproofing material.

It should be noted that the repair of a soft roof with insulation is the most difficult process. This is especially true for flat roofs, where slab materials were used for thermal insulation. Required here special treatment to the docking of sections (new and old) with each other. Therefore, the gaps between the laid plates are filled mounting foam. This old technology which is rarely used today. It is better to fill it with a special sealant, which is also available in cans in the form of foam. It's just that the latter of the sealant does not expand in volume and lasts a long time.

Emergency

There is no point in arguing here, because emergency repair roofing (its technology) is commensurate with the technology of roofing soft roofing. That is, they produce complete dismantling roofing material, remove the heat-insulating layer, check the base for technical condition. And based on the results of the research, they decide whether to repair the base of the roof or not.

All other operations are carried out in the following sequence: repair of the base, laying the heat-insulating cake, installation of the roofing material. Essentially, you get a new roof.

Let's add that today construction market you can purchase special mastics based on bitumen and polymers. They cost more than rolled and piece soft-type roofing materials, but in all respects it is better. Yes, and laying them on the roofs is easier, because it is a mastic, which is applied with a conventional spatula. At the same time, on the roof surface it turns out seamless coating with high mechanical strength and heat resistance.

Video description

Modern roofing mastics for renovation soft roofs in video:

Conclusion on the topic

The degree of difficulty in repairing a roof covered with soft roofing materials lies in the type and number of defects. Sometimes masters decide to completely re-lay the structure, just not to mess with large quantity cracks. In many cases, this is a justified decision, because a cracked surface is a sign that the roofing material is at its limit.