Liquid pvc for roof repair. Liquid roofing: coverage for decades. What are the advantages of liquid rubber

AT last years for roof waterproofing work, liquid rubber, or seamless insulation, is becoming increasingly popular.

It is used to create waterproof, chemically, weather and heat resistant waterproofing coatings on the most different surfaces regardless geometric shape and angle of inclination.

Roof waterproofing

Most often, the material is used for flat surfaces. This is due to the large area of ​​objects with a flat roof - up to several thousand square meters. Such scales greatly complicate the process of waterproofing.

When using liquid rubber, the picture fundamentally changes: with an increase in the cultivated area, work is simplified, since this material easily covers even the most complex details of the roof topography: pipes, canopies, various parapets, ledges.

A big plus of liquid rubber is the possibility of better and faster implementation of the necessary work than when using rolled waterproofing materials.

Types of roofing mastics, general characteristics of liquid rubber

Today, a huge variety of roofing mastics are produced. According to their composition, they are divided into two main categories:

• one-component;
• multicomponent.

The first group includes materials that are arranged in the proportion required for application and further hardening.

Multicomponent mastic can be represented by several components. It must include at least two ingredients: a base element and a curing catalyst.

Mastics consisting of two elements are called two-component. Liquid rubber is one of the varieties of materials in this group.

It should be noted that the title of the material does not convey its essence. This term is erroneous and was chosen for only one reason: it is the most convenient for consumers.

In appearance, this coating resembles rubber: it is black, viscous, waterproof. Resemblance to rubber is limited outward signs. The basis of this material is not rubber, like rubber, but bituminous.

Israeli manufacturers - the creators of this substance - categorically oppose the term "liquid rubber" and offer to call this type of coating seamless sprayed waterproofing. The offer is not accepted, since the name is rather complicated for the average consumer: most potential buyers it causes confusion. This is the reason for the slightly incompetent but perfectly understandable designation "liquid rubber".

By the way, material this type was created in the seventies in the USSR, however, due to Low quality used bitumen has not received distribution.

Technical properties of liquid rubber

Liquid rubber is a cold applied mastic. The basis of the substance is an aqueous emulsion of polymer-bitumen type.

A distinctive feature of rubber is instant curing. Since it is produced in water based, then the evaporation of toxic substances is minimized.

waterproofing seamless coating"Liquid rubber" not only has a high degree of safety in terms of ecology, but also allows you to cope with construction work in the shortest possible time and ensure durable coating with a long service life.

Some types of mastic are applied by spraying. Thanks to this, joints and seams do not appear. Spraying makes it possible to use rubber for structures of any shape. Since the substance has a low fluidity, it can be used to treat even vertically located surfaces.

The material does not deteriorate under the influence of ultraviolet radiation, retains its qualities at elevated temperatures.

Depending on the applied polymer additives, bitumen, specific brand and manufacturer, the lowest bending temperature on the beam can be 20 degrees. There are special varieties of liquid rubber designed for especially cold regions (for example, Yakutia), they can be used at temperatures up to minus 60 degrees.

Because bitumen contains essential oils over time, they can evaporate. In this case, a special reaction is observed - bitumen aging effect. This process is avoided by the polymer contained in the mastic, which creates an anti-evaporation film and prevents the bitumen it contains from aging. As a result, the operational life of this coating is 20 years or more.

Liquid rubber is very elastic (its CL is more than 1000%) and at the same time durable. Thanks to these qualities, it does not exfoliate even after sudden changes in temperature, humidity, pressure, surface vibration.

The membrane surface retains its properties even after complete curing and does not lose them for a long time.

When using liquid rubber, further maintenance of the treated surface can be dispensed with. If necessary, the material can be easily restored and repaired.

The resulting coating is resistant to mechanical influences, it is fireproof, does not deteriorate under the influence of most used in construction work chemical substances.

The rubber is perfectly compatible with water-based (solvent-free) paints. This quality allows you to choose the color in accordance with the desire of the customer.

Types of liquid rubber

There are three types of liquid rubber:

• Bulk

- it is manufactured and formed right at the place of waterproofing work.

• Painting shop

- installation of waterproofing is carried out by applying liquid and pasty film-forming materials using conventional paint brushes, brushes and spatulas. The work is done manually.

• sprayed

– application is carried out by cold spraying, using special equipment RX-27. This method is characterized by the ability to quickly perform all the work and high quality characteristics of the resulting coating.

Sprayed liquid rubber is classic version liquid material for waterproofing works, and it occupies one of the first positions among the materials used for waterproofing.

Features and benefits of the application process

When applying the substance to the surface to be treated, a special spray gun is used. The material hardens almost instantly. There is no need to preheat the surface, which means that the process is completely fireproof.

Application by spraying allows you to use the substance sparingly and obtain a uniform layer. The coating thickness should be 2 mm.

When applying the layer, a special mobile dosing and mixing device is used on a gasoline engine weighing 68 kg. The equipment is very convenient to use, since there is no need for electricity supply. It can also be used in hard-to-reach places, as it is equipped with 150 m of hoses, eliminating the need to move the entire instrument.

Liquid rubber has been tested for compliance with safety regulations.

When working with the material both in open and closed areas, there is no need to use tools personal protection because it is odorless and does not emit toxic substances.

Liquid rubber can be applied even on wet surface, although it is still recommended to dry it first.

Applying mastic is a very easy and fast process. Due to its exceptional qualities, it is possible to process up to 2000 sq. meters of surface per day.

Material advantages

Liquid rubber has a number of undeniable advantages:

• the material is stored in barrels in a liquid state;
• method of application - spraying by cold spraying - allows you to use the substance on the surface of any geometric shape;
• rubber has a high degree of adhesion to most building materials;
• when repairing a roof, liquid rubber can be sprayed directly onto the old waterproofing coating;
• after applying this material, even the most complex surfaces do not have seams;
• material provides high level strength and elasticity of waterproofing;
• the roof becomes absolutely waterproof;
• after surface treatment, all holes and holes are tightened;
• the substance does not corrode;
• it is completely safe in terms of ecology;
• the material is very economical: for processing 1 square. meter takes about 1 to 3 kg of liquid rubber;
• when carrying out waterproofing work, there is no need to use fire, electricity, water;
• the coating created with the help of liquid rubber has a high degree of resistance to temperature extremes, very low and high temperature conditions;
• the material does not deteriorate under the influence of ultraviolet radiation and chemicals;
• it has a long service life.

Flaws

Among the shortcomings of the material are the following:

• if necessary, the coating can only be removed mechanically;
• liquid rubber is highly sensitive to oil-containing substances and solvents;
• the price of the material is relatively high.

Areas of use

Liquid rubber can be applied to the following materials:

• monolithic and prefabricated reinforced concrete;
• metal;
• cement strainer;
• slate;
• wood;
• roll materials;
• tiles.

Liquid rubber is more practical and convenient to use compared to membrane and roll coatings due to the cold application method. She represents the most modern method surface protection. The material is used both in the construction of new facilities and during the repair and reconstruction of old buildings.

The main advantage of liquid rubber is its versatility: since its adhesion to the material occurs at the molecular level, a strong fixation on the material of any quality and texture is ensured.

When applying a coating to the old waterproofing, the moisture accumulated during the period of use of the old coating is removed using special deflectors. If necessary, it is possible to carry out geotextile reinforcement of the coating.
The use of liquid rubber is very convenient when processing surfaces with large quantity adjunctions. For similar roofs materials roll type are just useless. A high degree of resistance to vibration makes it possible to use liquid rubber for roofs with ventilation outlets.

The material provides protection against vibration of the ventilation system, and it does not affect the properties of the insulating material in any way. In addition, rubber reliably isolates joints and junctions from moisture.

The low level of sensitivity to temperature changes makes it appropriate to use this mastic in both very cold and extremely hot weather conditions.

Liquid rubber is used on all types of buildings: in the construction or repair of private houses, industrial facilities etc.

Due to its versatility, rubber is used not only as protective covering, but also as an independent roofing.

Spray technology

When applying liquid roofing rubber, as already mentioned, an airless two-channel dosing and mixing element is used.

Work must be carried out at a temperature of at least plus 5 degrees and dry weather. The rubber is best applied on a clean and dry surface, although it can be sprayed on a wet surface.

Before applying the material, the roof must be thoroughly washed with a washing water apparatus operating under high pressure. After that, the surface must be dried. In the presence of greasy spots they must be disposed of by burning.

Prior to the start of waterproofing, the following activities must be carried out:

• check the correctness and quality of the device of the roofing base;
• prepare the base of the roof for further coating with a layer of liquid rubber;
• install in the work area necessary equipment and tools;
• prepare the bitumen-polymer mixture for work.

Liquid rubber is applied to the roof in strips 1 to 1.5 meters wide. The layer should be uniform, with cross-shaped transitions. There should be no gaps on the roof surface. In those areas where the roof is flat, it is necessary to include a sliding layer. It is placed between the protective layer and the membrane. It is obtained by laying two layers, including geotextile, fiberglass and polyethylene film.

Features of applying liquid rubber to a flat roof

Liquid rubber is often used for waterproofing flat roof. Features of the work are determined by the specific type of roof.

To get a waterproof coating good quality, liquid rubber should be applied on a sufficiently smooth base. Perhaps the surface will not be perfectly flat - the main thing is the absence of extra items and significant defects.

Only under this condition, during the spraying of the material, the layer is distributed evenly and approximately the same height is obtained. The degree of smoothness of the created liquid roof depends on which device was used.

By using a high pressure plant and sufficiently smooth surface to be coated, a seamless membrane is obtained. In this case, the spray method is used.

When using devices operating under low pressure, the probability of obtaining a smooth surface is low. Most likely, tubercles of different heights will appear on it, which will greatly spoil the appearance of the roof. If it is not possible to level the surface before spraying, it should be trimmed with a screed.

When applying liquid rubber to roof slabs may increase the amount of consumed polymer bituminous emulsion. If there is a primer layer, it is necessary, as far as possible, to reinforce all located in the intervals between insulation boards connections. They need to put strips of geotextile.

The best way to apply liquid rubber is to cover the composition of the already applied screed layer. In this case, a smooth surface and an attractive appearance are guaranteed. appearance roofs.

Prices

The cost of liquid roofing rubber is influenced by several factors, the main of which are the specific type of material, its quality characteristics, price policy of the manufacturer and seller.

You can navigate the prices based on specific examples.

Liquid roofing CBS rubber for installation and waterproofing of roofs on a concrete base, roof repair soft type from built-up roll materials and PVC membranes and restoration of a pitched roof based on metal sheets, soft tiles and slate can be purchased for 97 rubles per kilogram.

Rubber ARCTIC roofing CBS, which has increased frost resistance, is suitable for waterproofing roofs in the Far North. Using this material, it is possible to carry out the installation and waterproofing of soft roofs on a concrete base, as well as waterproofing and repair work roofs made of PVC membranes and welded roll materials; repair and waterproofing of pitched roofs based on slate, metal sheets, soft roof tiles. It can be bought at a price of 108 rubles per kilogram.

General purpose GI liquid rubber used for waterproofing vertical and horizontal retaining walls on a concrete base as well as for corrosion protection metal structures sold for 89 rubles per kilogram.

CONCLUSIONS

• Liquid rubber is a new word in construction. The material is used for waterproofing works.
• The substance is most often used for flat surfaces.
• The name does not correspond to its composition of the material, since the basis of liquid rubber is bitumen, not rubber.
• The main advantage of liquid rubber is the ability to use it on surfaces of any shape and any roofing material.
• Liquid rubber can be filled, painted and sprayed.
• The sprayed variety is applied by cold spraying.
• When spraying, a special device is used.
• For waterproofing High Quality The surface to be treated must be smooth, clean and dry.
• When applying liquid rubber, follow the instructions.
• Prices for liquid rubber depend on its type, specifications and some other factors.

How the process of applying liquid rubber to the roof takes place can be seen in the video.

Every roof needs some type of roofing material to serve as the building's front line of defense against atmospheric influences. Therefore, the construction industry constantly offers novelties on the coating market, and one of them is liquid roofing. About her operational properties and features will be discussed further.

Bitumen, like many years ago, is the basis for many roofing materials, especially for flat roofs, due to its specific chemical and physical properties.

Based on it, novelties are constantly being developed, and one of them is liquid rubber. It is bitumen-polymer containing one or more components in its composition.

Strictly speaking, "single-component" compositions can only be called as such conditionally, since they are ready-made mixtures various substances, ready to use and not requiring mixing and other additional operations.

AT this moment liquid rubber for roofing is one of the most technologically advanced and unpretentious materials in operation.

It is used both independently and as a waterproofing for other types of coatings - and, unlike classical films and membranes, it is applied over the base.

There are practically none on which liquid roofing could not be applied due to its high degree of adhesion (penetration and adhesion).

Among them:

• Monolithic and precast concrete
• Cement strainer
• Wood
• Metal
• Tiling (including as a bottom waterproofing layer)
• Slate
• Old coatings from roll materials

At the same time, a special advantage of the material is that on the roof, where the liquid roof is applied, the roof, as such, can be of any shape, and with the most complex geometry.

The advantages of this mastic include:

• Creation of a solid roofing carpet without seams
• No connection problems at the locations of various over-roof structures
• High elasticity
• Durability (20 years or more)
• Ease of application and fast curing
• High water resistance even under extreme conditions
• Chemical and biological resistance
• Wide operating temperature range (-60 - +110 °С)
• Ecological safety (can be used even indoors)
• Low material consumption (1-3 kg/m2)

The material is also applied in almost any way:

• brush
• Roller
• Spatula
• rubber squeegee
• spraying plant

At the same time, high fire safety is ensured, since this roof is arranged in a cold way, without the use of open fire.

Hardening occurs almost immediately after application. You can walk on the coating, and full readiness comes in a day.

Minimum preparation is required, similar to a conventional screed or surface painting: cleaning from dirt, degreasing, if necessary - a primer

Important information! Degreasing and priming work must not be carried out using substances based on petroleum products.

Especially effective area application of the material is roof repair liquid rubber. As a rule, it is performed on the old coating of rolled materials.

It is noteworthy that in this case - both when completely covering the old roofing carpet, and when applying repair patches, the removal of the old coating is required only in places of chipping. Even bubbles, after cutting them, can be filled with mastic.

Advice! In order to save money, when installing a roof covering, you can use rolled material as the main material, and process complex areas with bitumen-polymer mastic - junctions, vertical and inclined surfaces, etc.

Of course, no material is without flaws, and liquid roofing also has them.

These include:

• Relatively high price
• Sensitivity to solvents and other petroleum products
• Possibility of removing the coating, if necessary, only mechanically

However, the advantages still outweigh: the speed of the device, the possibility of applying to vertical surfaces (without subsequent slipping under the influence of heating by sunlight) - this material has no equal. Separately, it should be said about the high elasticity.

Thanks to her, when the temperature changes environment, even the sharpest - the roof will work together with the base, which will not allow damage to occur either in the coating itself or in the places where the carpet adjoins various elements of the roof.

When installing additional protective layers(substrates from below and hard coating - screeds, cement tiles etc.) on such material as, for example, Reinforced liquid roofing can be exploited.

Although mastic is usually produced in black, there are also color options. It can also be tinted with organosilicon or water-based dyes.

The remarkable properties of liquid rubber (although it's not actually rubber, it doesn't have the obligatory rubber in it) make it a versatile and very practical coating.

Repair soft roof flat and pitched roofs can be performed according various technologies depending on the area and type of damage selected repair materials. You can repair it yourself by following the recommendations in this article.

Preparation for repair

A soft roof made of bituminous materials requires regular inspection - it is much faster, easier and cheaper to fix minor damage in time. Do not wait for the increase in cracks and decay of the cardboard base roll coating or water intrusion roofing cake through the cracked seam.

Inspection of a flat roof is carried out with outside, and Special attention should be given to the spillway system, which is often clogged with debris or ice during thaws. pitched roof it is also necessary to examine from the side of the attic in order to assess the condition truss system.

The most vulnerable soft roofing material is roofing material, bituminous layer which is poorly tolerated by ultraviolet and temperature loads, and the base is prone to decay. This material, as an external coating, is currently used on outbuildings and garages. Modern bituminous membranes are more resistant to external influences.

When inspecting the roof, it is important to identify the places of possible leaks.:

• delamination or swelling of the roofing carpet;
• cracks, abrasions, tears or other damage to the outer layer;
• lack of tightness of seams and junctions;
• depressions on the surface in which moisture stagnates.

There are two types of repair:

• current (damages are present on the area less than 40% of common surface roofs);
• capital ( total area damage is more than 40% of the roofing area).

Pitched roof repair

If, during the inspection of the truss system, defects in structural elements or battens are revealed, they need to be corrected. To replace a damaged part solid battens roofing will need to be removed. roll material. A rotten rafter can be strengthened from the inside with the help of two boards interconnected.

Roofs, single-pitched or double-pitched, can be performed with a complete replacement of the coating. But in most cases, defects should be eliminated at the first stage of work.:

• open the bubbles with a cross-shaped incision and dry them well, and then seal them with bituminous mastic;
• fill cracks and small gaps in the bitumen layer with mastic.

Then one or two layers of new roll material are laid on top of the old coating.

For singles mechanical damage soft roofing, you can simply apply patches - fragments of rolled material that are glued bituminous mastic.

Flat roof repair

The overhaul of a soft roof begins with the dismantling of the coating. The old roofing carpet should be removed and the quality of the roof base should be assessed. If the cement-sand screed of the roof of the house is largely destroyed, it will have to be dismantled and redone. On top of the garage soft cover it is laid without a screed, but it is required to seal the seams with high quality and fill them with bituminous mastic.

Base flat roof thoroughly cleaned of debris and covered with a primer. After it dries with a gas burner, a rolled bitumen membrane is laid. It is important to observe the standard overlap of the strips and check the quality of the deposition, timely removing air bubbles and correcting defects in the seams. The material is laid in at least three layers.

Capital repairs require serious financial investments and labor costs. If possible, local repair of damaged areas is carried out - patches are prepared required dimensions and stick to the appropriate areas. In addition, the “old way” repair method is common. In this case, another 2-3 new layers of coating are mounted on the already existing roofing carpet with corrected defects.

This method is not recommended if the roofing carpet has multiple injuries or 8 or more layers in thickness, as additional layers will significantly increase the load on the supporting structures.

Garage Roof Repair

Repair of the soft roof of the garage can be done by hand. To dismantle the old coating from the concrete base, it is recommended to use an ax: they cut the carpet into strips, which are then twisted. The base surface is cleaned with a broom and checked for cracks and dents. If necessary, a screed is made from cement-sand mortar. It is important that the angle of the roof is at least 3-5 degrees to prevent moisture stagnation on the surface..

If it is planned to insulate the roof of the garage, a heat-insulating layer of foam or other material is laid before the screed is made. dried screed or concrete base roofs with seams sealed with mortar and filled with bitumen are treated with a primer - it not only increases the adhesion of the coating, but also protects the roofing carpet from moisture evaporation from building structures.

Laying strips of rolled material should begin at the bottom edge of the garage roof. The overlap of each subsequent row on the previous one is at least 10 cm. The installation of the following coating layers is carried out with a shift so that mounting seams not stacked on top of each other. The material is heated by a gas burner. The seams can be additionally smeared with bituminous mastic.

If glassine or roofing material acts as an external coating, it is necessary to make a special protective layer: apply a layer of bitumen on the entire surface of the garage roof, cover it with sand or stone chips and roll it with a roller.

New technologies

Today, soft roof repair technology allows the use of liquid rubber. This method allows you to create reliable waterproofing flat roofs with a large surface area and a large number of connections to vertical structures.

Exist different kinds roofing mastic. Liquid rubber can be a one-component material or a two-component mixture, applied hot or cold.

The advantages of liquid rubber include safety for human health due to the lack of volatile substances and solvents, since the material is water-based. In addition, the installation of such a coating is faster and better than a rolled waterproofing membrane.

One-component liquid rubber for roofing works applied cold and can be used for self repair roofs. Roof repair with liquid rubber, consisting of two components (polymer-bitumen emulsion and aqueous solution calcium chloride) requires the use of special equipment and is carried out by professionals.

Liquid rubber for cold installation is used both in the arrangement and in the repair of roofing. Subject to the technology of work, it can be used to obtain a monolithic surface, which is characterized by:

• strength;
• durability (warranty period of 20 years);
• water resistance;
• tightness of junctions to vertical structures (parapet, pipes, ventilation wells).

A 2 mm thick coating made of liquid rubber is superior in terms of tightness to a carpet made of welded material formed from 4-5 layers. It is important to apply the material on a dry, clean surface.

Liquid rubber has high adhesion and adheres reliably to concrete, brick, metal and other surfaces. This allows it to be used to repair soft roofs by applying over the old roofing carpet.

Liquid rubber coating can be used at temperatures ranging from -45 °C to +98 °C. It is not necessary to use during installation gas-burners or digesters, as for other bitumen-polymer materials. If liquid rubber, which is not resistant to ultraviolet radiation, is used for the external coating of the roof, a protective color should be applied.

Liquid rubber is popularly called a popular material used for, based on oil bitumen. Professionals know how universal remedy, but inexperienced craftsmen often underestimate self-leveling waterproofing. Liquid rubber can be used to build a flat roof, repair old ruberoid coatings with your own hands and protect the roof and foundation from moisture. In this article, we will dwell on its composition, properties and methods of use.

Liquid rubber is a popular do-it-yourself roof waterproofing material made from bitumen emulsion. It is a thick, viscous, fluid liquid that solidifies on the roof surface at a temperature of +5 degrees. After hardening, liquid rubber forms a durable, monolithic layer that does not allow moisture to pass through. In addition to the bitumen emulsion, this waterproofing material includes:

• polymer additives. They improve the properties of liquid rubber, making it more resistant to temperature changes and mechanical damage.
• plasticizers. The task of plasticizers is to make the consistency of the bitumen emulsion more fluid and elastic, as well as to increase the adhesion of the composition.
• hardeners. The hardeners are responsible for setting this do-it-yourself roof waterproofing agent after application.

Important! The composition of this waterproofing agent does not resemble real rubber in any way, it is so called because it retains elasticity and ductility even after hardening. In production, this waterproofing material is poured into metal barrels 200 liters or smaller containers.

Properties

Liquid rubber is a universal product for waterproofing roofs with wide opportunities applications. It is characterized by high water resistance, elasticity and ease of application by hand. The advantages of this material are:

1. Solidity. After the composition has hardened, a monolithic waterproofing layer is formed on the roof surface, which does not allow moisture to pass through, and also does not have joints or seams where leaks can occur.
2. High adhesion. This waterproofing material is able to penetrate into small cracks and pores in the base of a roof made of wood, concrete or even metal without additional priming.
3. Weather resistance. Temperature Range, in which liquid rubber can “work”, ranges from -75 to +95 degrees, which is quite enough for trouble-free operation throughout Russia.
4. Ease of application. This waterproofing material can be used for vertical and horizontal surfaces. The composition can be applied with a brush, roller or spray gun.

Please note that the disadvantages of this waterproofing agent are considered to be a rather high price and low resistance to ultraviolet radiation. To protect a roof covered with liquid rubber from direct sun rays it is recommended to treat it with water-based or organosilicon-based paint.

Possibilities of use

As already mentioned, liquid rubber can be used in a wide range of construction operations. It differs fundamentally from other waterproofing agents in its consistency, which allows it to be applied to vertical and horizontal surfaces, as well as to cover up narrow cracks and joints. It can be used for the following purposes:

• For flat roof waterproofing. waterproofing material It is evenly spread over the roof surface until a uniform layer of the required thickness is obtained. This technology is called self-leveling roofing.
• For priming the roof base before laying rolled and piece roofing materials.
• To protect the foundation and other structural elements houses from moisture. Bitumen gives the composition bactericidal properties, so liquid rubber retains materials well, protecting them from corrosion and decay.
• To repair a soft roof with your own hands. With the help of liquid waterproofing, you can repair cracks, tears, holes, or glue a patch on the surface of an old roofing felt.

Experienced craftsmen believe that the high price of the material pays off with excellent operational characteristics liquid waterproofing. It has been experimentally proven that a two-millimeter layer of liquid rubber is equivalent in efficiency to an eight-millimeter layer of rolled waterproofing materials.

Technology of use

Since the price of liquid rubber is quite high, it is necessary to carefully prepare the surface of the roof in order for it to work effectively. From quality preparatory work depends on service life and waterproofing qualities material. Surfaces must be thoroughly cleaned of dirt, dust, and then dried, primed with mastic and laid a reinforcing layer of geotextile. After such preparation, you can apply liquid rubber with your own hands using one of the following methods:

Please note that for effective protection surfaces from moisture are treated with liquid rubber with their own hands not once, but immediately 2-3 times. Re-application begins after the previous layer has set, which takes 5-9 hours.

Video instruction

The soft roof has multilayer structure and is made of flexible roofing materials. Thanks to its advantages, it has rightfully taken a leading position among other types of roofs. However, along with all its advantages, it also has a lot of negative sides. On a soft roof, defects often form, the cause of which can be both physical and environmental influences. To eliminate them, special materials for soft roof repair. Most often, repairmen use liquid rubber, mastic or waterproofing.

First of all, you need to determine the condition of the coating. After all, how much it is damaged depends on what the repair will be. And depending on the type of repair will depend on the choice of materials. In this regard, the first point is the definition of the type necessary repairs, which could be:

The first type is also called current. If the coating has minor damage that cannot lead to serious (global) consequences, then after a preliminary inspection, Maintenance. Wherein complete dismantling the old coating is not produced. Everything is limited to a simple correction of deformations with liquid rubber. Bituminous mastic is also often used for such repairs.

Important! Major repairs are carried out in cases where the damage is extensive enough and can lead to serious consequences. AT recent times a well-established method of repair with a waterproofing.

Liquid rubber - as one of the materials for coating restoration

This material is increasingly used in repair work. Liquid rubber creates a completely seamless coating that does not let water through. It can be used both for sealing small cracks, cracks, other damages, and for a solid coating.

When repairing liquid rubber, you should remember about its composition. The basis of this material is a bitumen-latex emulsion, which is sprayed with calcium chloride powder. The advantages of this type of material are:

• In some cases, it can be applied without removing the old coating.
• Work is carried out without the use of complex mechanisms and equipment.
• Has enough big choice color range.
• Service life can reach 20 years.
• Provides a high level of waterproofing.
• Fast freezing.

The main aspects of the technology in which liquid rubber is used

Elimination of deformations is carried out in the following ways:

• mechanical spraying with liquid rubber is carried out using airless devices;
• the material is applied by conventional rollers or brush manually.

When applied mechanical way significantly reduces the time spent on work. This reduces consumption. Compared to him, manual method longer. With it, you need to apply rubber in layers. Each layer must dry for at least 7 minutes. Naturally, the speed of application with a roller or brushes is significantly lower than with mechanical spraying.

Liquid rubber repair has many advantages. First of all, it does not need to be heated or prepared in any way. The only thing that is needed is to clear the roof of debris. Secondly, it is extremely elastic and very durable. In this regard, carrying out restoration work with liquid rubber is gaining more and more popularity. Covering a flat roof with liquid rubber https://www.youtube.com/watch?v=iNCZQYehhG8

Mastic and its features

Mastic can be applied in two states: cold and hot. The application temperature depends on which type has been selected. For cold application, a mastic containing a special solvent is suitable. The hot type of this component does not contain.

Depending on what chemical composition, this material is divided into:

• bituminous (the most commonly used);
• polymer;
• latex;
• combined.

But regardless of this, any of them has a number of advantages:

• This material is resistant both to external environmental influences (precipitation, etc.) and to mechanical damage.
• It is very plastic;
• Quite easy to use.
• It has a small weight, which is also important.

What you need to know about mastic https://www.youtube.com/watch?v=5E4PuZKf6AU

Elimination of deformations using bituminous mastic

Mastic is the most common material that is used not only to repair cracks or other defects. Hot mastic is applied a year after laying the roofing material. Lubrication performs protective functions. To eliminate a defect (for example, swelling), the following technology is used:

• First of all, you need to clean up. All debris that has accumulated around the damage must be removed.
• Next, the edges of the swelling must be lifted, cut, and also cleaned with a tool (for example, a knife).
• The mastic is preheated. After that, it lubricates the place of the defect.
• From above, the mastic is fixed with a special reinforcing overlay.
• In cases where the damage is large enough in area, then not an overlay is laid on top, but a patch of roofing material. According to the regulations, it should overlap by at least 10 cm.

Cracks near walls and floors are treated in the same way as ordinary swellings. The only difference is the size of the patch. AT this case mastic is fastened with a patch bigger size. Flat roof repair with bituminous mastic https://www.youtube.com/watch?v=anf-LBGJydU

Hydroisol for the overhaul of the waterproofing coating

This material, unlike liquid rubber and mastic, is used more often when overhaul. With this type of work, it is necessary to completely dismantle the old waterproofing coating.

Hydroisol has the following structure:

• 1st layer - base;
• on both sides of the base, a coating of modified bitumen is created;
• the latter is a protective layer with shale powder.

Roof waterproofing features https://www.youtube.com/watch?v=2_94FfG5cmY An example diagram looks like this:

• To dismantle old layers, they resort to using a chisel, hammer, chisel, ax or mount. Using a sharp tool, cuts are made, and then the edges are pryed off and the coating is removed in pieces.
• In this case, you need to pay attention to the "bending". If discrepancies were found during the inspection, they must be eliminated and corrected.
• The cleaned base must be primed. To do this, resort to a cement-sand screed. In this case, you need to monitor the correct slope in relation to the direction of the funnels that carry out the water flow. You need to make sure that they are not clogged. If there is debris in them, the outflow of water will be disturbed, and liquid will accumulate on the roof.
• Using the fusing technology, the waterproofing is laid in 2 layers.

Repair various roofs using hydroisol https://www.youtube.com/watch?v=1t1dJC6vqhI Roof repair depends on several points. First of all, consider how badly the coating is damaged. If there are not many deformations and they are not large, then current repairs are carried out, in which liquid rubber or mastic is used. For more serious damage, resort to waterproofing.