When working on surface insulation, mastics are often used. After their appearance on the market, builders use them more and more every year when carrying out work. And this is quite understandable, because they provide convenience during insulation work. In addition, the cost of materials is at a fairly acceptable level.
If you compare the characteristics of mastic and other materials used to insulate surfaces, the choice is obvious. Mastic is more affordable and at the same time has excellent performance characteristics.
Features of the material
Mastics intended for insulating the roof surface are created on the basis of bitumen. The material itself is unsuitable for insulation work. When exposed to low temperatures, it cracks, and in hot conditions, bitumen can change from a solid to a liquid state.
However, everything changes when this material is used in conjunction with polymers supplemented with fillers. This allows you to obtain a coating that is highly reliable and can last for a long time.
If we talk about the variety of these solutions offered on the market, there are two main types:
- hot;
- cold.
Professionals most often resort to using hot solutions, since when working with them it is necessary to use special equipment. Before starting work, the material is heated to the required temperature and then mixed. An open fire is used for heating, which further complicates the work using hot mastics.
The main difference between cold materials is that when using them, no preparation work is required. You only need to mix the material, and then you can proceed to applying it to the surface.
The main use of bituminous cold mastic is associated with the use of waterproofing on the roof. It is also used when performing repair work on the roof and is applied before laying roofing material.
If the home owner is faced with the task of ensuring maximum protection of the roof from moisture, then the best choice is to create a waterproofing layer based on cold mastic.
It is especially beneficial to use this material in situations where it is necessary to create spot waterproofing on the roof or carry out repair work on individual sections of the coating. If the owner of a private house uses this material, then he only needs to stir it, after which it can be applied to the surface to be treated . When using cold mastic, there is no need for heating or any other preliminary preparation.
Another advantage of cold mastic is that when using it, the material consumption is significantly less than when work is carried out using a hot solution.
Note that in addition to insulating the roof, bitumen mastic is also used to provide reliable protection for the foundation, which is also negatively affected by moisture. High-quality bitumen materials are created using special components that are resistant to corrosion, and, in addition, have good resistance to other negative environmental factors.
In most cases, of all types of cold solutions, bitumen-cukersol mastic . In its production, manufacturers use kukersol construction varnish, and in addition to it, a toluene-based solvent and petroleum bitumen.
Cold mastic based on bitumen has become widespread for roof protection work. The use of this material ensures the creation of a high-quality waterproofing layer that reliably protects the roof structure from moisture.
Prices for repairing the roof of a private house in Moscow and the Moscow region
Depending on the complexity of the roof, roof structure, angle and height of work, the price increases by 15-30%.
| No. | TYPE OF WORK | unit | price, rub) |
| 1 | Flat soft roof | sq.m. | 170 |
| 2 | Soft tiles | sq.m. | 580 |
| 3 | Copper, titanium-zinc | sq.m. | 750 |
| 4 | Simple metal sheet (rebate) | sq.m. | 650 |
| 5 | Metal tiles | sq.m. | 600 |
| 6 | Ceramic tiles | sq.m. | 750 |
| 7 | Cement-sand tiles | sq.m. | 600 |
| 8 | Complete dismantling of the dilapidated roof and repair of the screed (fragmentally) | sq.m. | 90 |
| 9 | Removal of steel covering | sq.m. | 120 |
| 10 | Replacement of existing roof with galvanized steel covering | sq.m. | 200 |
Why is it worth ordering roof repairs with mastic from professionals?
Even a flat roof can be repaired well using mastic. And if the roof has a non-standard configuration or slope, this becomes a significant problem. Improper application of the composition will cause even more problems, for example, the surface will swell over time. In order not to waste time and money in vain, order roof repair with mastic in. We work with objects of any complexity, qualitatively eliminating small and large defects.
Types of products
Cold mastics are classified in the same way as hot materials. They are divided into classes according to composition. Moreover, only the main component is taken into account during separation.
Currently, there are several main types of this material:
- bitumen;
- bitumen-latex;
- bitumen-rubber;
- bitumen-kukersol;
- bitumen-rubber;
- bitumen-oil.
The classification of bitumen-based materials according to such a parameter as functional predisposition is extremely rarely taken into account. This is due to the fact that any type of bitumen mastic can be used for almost any job.
If we talk in more detail about bitumen-latex mastic, the main advantage is the following: it is equally suitable for insulating surfaces and for ensuring reliable protection of the roofing sheet . The same applies to all other materials. Among the variety of mastics, materials made on the basis of kukersol varnish stand out.
The peculiarity of these materials lies in the effectiveness of their use in insulating concrete coverings and foundations. But to protect roofing coatings because they are expensive. Other types of bitumen solutions are more effective in terms of insulation and are affordable.
Water based
They are the most environmentally friendly, because the content of toxic substances in them is minimal. They are easy to use and safe.
Bitumen mastics with special additives and fillers (plasticizers, minerals, etc.) have any specific properties:
Rubber mastic and polyurethane are the most elastic; they contain rubber or polyurethane.
- Bitumen-latex - very durable with increased water resistance, contain synthetic binders and mineral fillers (latex, asbestos, mineral wool fibers, modifiers).
- With an oil solvent - it does not harden, it is usually used on objects with constant vibration.
- Rubber-bitumen - resistant to stretching, shock and vibration, easily adheres to any surface.
rubber-bitumen mastic for cold applicationRubber-bitumen mastic is most often used for cars, but it is also successfully used for roof repairs.
Now let's look at the use of various types of bitumen mastics for roof repairs.
Advantages and disadvantages
Bitumen-based solutions have certain advantages:
- they provide convenience during operation and operation;
- they dry out within a short time;
- These materials can be used to protect the foundations of buildings, as well as when working on the insulation of concrete structures;
- in order to perform high-quality work using these materials, there is no need to use additional equipment, and extensive experience in carrying out work is also not required;
- bitumen-based mastics are characterized by high elasticity and, in addition, deep penetration into the base;
- these materials are successfully used for internal insulation due to the fact that the composition does not contain standard solvents;
- are an excellent solution for spot repairs.
Disadvantages of bitumen-based materials:
- has poor resistance to ultraviolet rays;
- belong to the group of materials with a low flammability class;
- In terms of cost, high-quality cold mastic will be superior to hot mastic with similar characteristics.
Review of popular manufacturers
Cold bitumen mastic has slight differences in structure from hot materials. Therefore, manufacturers who are market leaders in the production of cold mastics also have high positions in the production of hot materials:
TechnoNIKOL
The company has been a leader in the Russian market for the production of bitumen mastics for a long time. In any hardware store you can find products from this manufacturer. Note that TechnoNIKOL cold mastic has good performance characteristics and at the same time has an affordable price.
Titan
This manufacturer has extensive experience in the production of such materials. He produces high-quality mastic in large quantities. High performance characteristics have made the materials of this company the most popular on the market.
Aquaizol
This company specializes in the production of cold mastics designed to create high-quality waterproofing of surfaces. Another direction of the company is the production of compositions for roofing work. of Aquaizol mastics include affordable prices and a wide variety of materials offered.
Hard roof repair
Repair of corroded areas. Hot mastic is usually used to repair hard roofs. First you need to remove the rust, clean the surface of dirt, then apply a layer of hot bitumen mastic.
Repair with a patch. First, we prepare a patch of the required size from a dense material (tarpaulin, burlap), then we impregnate it with a mastic composition and fix it on the place to be repaired, leaving it to dry well. Then apply another layer of mastic on top. This method is good for sealing interlocking surfaces.
Tips for selection and application
The market leader is cold bitumen mastic produced by TechnoNIKOL. It is offered in a wide variety at an affordable price. However, you should not rely only on materials from this manufacturer for insulation work.
It is necessary to carefully study the range of materials offered in the store and make a choice in favor of the option with the best ratio of performance characteristics and price.
It has already been said above that to solve the problems of insulating concrete pavements, it is best to use bitumen-kukersol solution , which copes with this task perfectly.
If the task is to arrange high-quality waterproofing, then when searching for materials you should choose rubber-based mastics or those containing derivatives of this material. An excellent choice for providing reliable waterproofing is waterproofing bitumen cold mastic or something similar.
The main feature of these mastics is their high elasticity and good fluidity. When performing roofing work, you should choose materials made from latex or rubber.
If you choose cold mastic intended for roofing , then you need to be prepared for the fact that the price for it will be quite high. However, when used, you can count on creating a coating that will be durable and reliable, will last a long time and its structure will not change under the influence of environmental factors.
When oil mastics are used during work, a coating is formed on the insulated surface that is resistant to temperature. Therefore, this material is an ideal solution for work when it is necessary to insulate joints on the roof.
The nuances of proper use of mastic
If the owner of the house has chosen cold bitumen mastic for insulation work, then he can immediately use it without prior preparation. You need to stir it, and then you can proceed to work. During the stirring process, you can see that the mastic has become more liquid . This provides convenience when working with it. It penetrates the coating better.
It is worth saying that the mechanical method of applying mastic is extremely rarely used. material is too viscous for spray applications . Therefore, for convenience when carrying out work, it is worth preparing a roller or trowel in advance.
A brush for applying mastic is used if the material is in a liquid state. When creating a coating, bitumen mastic is applied in several layers. Each one should dry for at least a day. If repair work is being carried out on a roof made of roofing felt, then both sides must be coated with mastic, after which you should wait until each of them dries. You should wait at least 20 minutes. After this, gluing can be done.
An important point is the storage conditions of cold mastics. They must be closed and access to fresh air must be prevented. If the mastic is left open, it thickens within 24 hours and deteriorates, making it unsuitable for work.
In some cases, when carrying out work using mastics, additional reinforcement is performed using a special mesh . Its fastening is carried out in superimposed layers. The layer that covers the mesh should be 2 mm thicker than all the others in terms of thickness. When creating a protective covering, the mesh must be laid in the middle part of the covering.
If the weather is cold outside or there are light frosts, then using cold mastic is quite possible. Only in this case it is necessary to warm it up to a temperature of + 40 +60 degrees Celsius. If the outside air temperature has dropped below 5 degrees Celsius, then even heating will not help ensure a high-quality result. In this case, you should refuse to perform the work.
