Owner’s responsibility is to keep a safe environment. According to Art. 195 of the Territory Management Act, in the case of a possible accident, due to poor maintenance or exploitation, they are fully responsible for it. The lack of maintenance of facade and roofing elements is a common practice even in the central parts of cities. Falling materials endanger the lives and health of passing pedestrians and often cause no minor damage to parked vehicles nearby.
Insurance companies filed claims to the owners of the buildings to recover the full amount of the damage. It also administrative fines of 1000, up to 5000 BGN.
Yes, this is quite possible. The repair made in time itself is an investment in the building’s resource, which acts as a preventive measure against the development of more serious problems requiring more capital for its solution. On the other hand, choosing an optimal system for each site guarantees the best balance between cost, execution time and lasting results. Unlike other companies on the market, we are not bound by the use of certain materials and technologies, which gives us the freedom to choose the best solution.
After a careful analysis of the collected data, the necessary repairs are carried out without any unnecessary work. The Expert Assessment sets out specific objectives and defines the types of repair activities to obtain urgent results such as:
– restoring and increasing stiffness
– recovering and increasing strength
– restoration and enhancement of construction features
– providing watertightness
– improving the appearance of the surface
– extending the life of the building
– preventing the development of corrosion in the reinforcement and concrete
Depending on the objectives, combination between several types of repairs may be required to achieve different results.
A common case in practice is the addition of new areas to existing ones. We are ready to consult for specific objects from a constructive point of view as well as a legalization documents.
The answer is yes, but only in certain cases. The most commonly applied methods are by hydrophobic coating or laying a waterproofing sheet inside on the wall or/and slab. In this way, a basic cosmetic effect is achieved, as the foundations of the building remain vulnerable to the aggressive action and high humidity of the groundwater. The achieved effect often is in short term and repeated repairs are required. There is a injection technology for cracks and joints based on resins and solutions. Their main advantage is that they fill completely connected cavities in the material, micro cracks, open joints, interrupt the capillary structure of the bricks and concrete, which completely stops the recurrence of leaks and wetted areas. In any case, there is no universal solution, and the specificity of each object determines the optimal solution to the problem.
The masonry that is in contact with the soil is exposed to moisture attack and salts penetrating capillary through the foundations. Even when the necessary measures are taken during the design and construction of the structure, defects in the waterproofing of the foundations occur after years, and it begins to pass through the underground premises of the building -cellars, underground parkings and others. Due to the high humidity in the walls and foundations mold is formed and the strength of load-bearing structural elements is compromised. Often this is accompanied by cosmetic defects that prevent the affected rooms from being inhabited or used their function. In worse cases, even the flooding of the foundations and material damage to the property located there occurs.
Fortunately, there are innovative techniques for removing capillary moisture in the foundations of old buildings. One reliable way to do this is to create a watertight section in several rows of masonry. In the areas affected by moisture, holes are drilled through which a hydrophobic pressurized solution is injected. Thus, moisture spreading is limited to the injection site and can not penetrate capillary by the height of the wall. Unlike most products offering only a cosmetic or temporary solution to the problem, the injected waterproofing also protects the structure from the underground water. In the treated zones, the destructive processes in building materials are greatly reduced. Other major advantages of the method are that it does not require excavation around the foundations. The execution time is short and the finishing works are in small volume and value. With a well-injected barrier, its life is equal to the life of the building itself. The ability of the method to be applied only locally, in a limited area of the building, allows it to be economically viable in combating moisture in basements of single-family houses.
The cracks in the buildings are divided into constructive and cosmetic. They are formed by a variety of agents, most commonly uneven foundation sinking, seismic action, reduced strengths of the materials. Upon their appearance, it is imperative to seek advice from a highly qualified specialist in the field of building inspection and testing.
Assessing the current and future state of the building is a complex engineering task covering multiple factors of great complexity. The decision on the need for constructive repair activities and the appropriate approach is beyond the competence of the commercial engineers. Of course, in most cases, the cracks are only visual and do not affect the safe operation of the building. However, in some particular cases filling of the cracks in necessary from a structural point of view. A common misconception is the myth that if the crack does not increase its size, it is not dangerous for the construction, and there is no need for timely measures to diagnose and remove the causative agent. Primary inspection by a specialist takes about an hour and the price varies from 50 up to 100 BGN.
The most common case of cracks in the slabs is immediately after their formwork removal due to unacceptable deformations in them. The reason for cracking in this case may be the lack of needed support to the minimum required strength of the concrete, its inferior performance, incorrectly laid or wrongly constructed reinforcement, common in old houses built around the middle of the last century.
Cracking of the slab can also occur as a result of the concrete being cured after application. These cracks must be closed by a cement screed to protect reinforcement and concrete from external influences. This is especially true for rooms with high humidity or aggressive agents in their air environment, where dense filling of the cracks is absolutely necessary as soon as they occur.
Typically, this type of cracks do not increase their size during the lifetime of the structure. If the floor deformation is greater than the allowable, measures should be taken to bring it into a design state that guarantees safety and exploitation in the future. There are innovative, elegant reinforcing systems that allow “standing” of already built reinforced concrete slabs within 24 ÷ 48 hours without the presence of “wet” processes.
Cracking of the slab can also occur as a result of the concrete shrinkage after concreting. These cracks must be closed by a cement putty to protect steel reinforcement and concrete from external influences. This is especially important for rooms with high humidity or aggressive agents in their air environment, where filling of the cracks is absolutely necessary as soon as they occur.
If the slab is deformed beyond the norm, the owner of the structure must immediately contact a specialist to make the necessary inspection of the structure. The investigation is intended to identify the cause of the defect in the design, the momentary and predictive state, and whether it can be exploited in this condition or constructive repair is required. In building practice, solving such defects can be divided into two types: classic and modern approach. The classic type of solutions are more conservative. They have been in place for many years in building practice, despite their number of disadvantages compared to more modern systems. The use of additional reinforced concrete leads to costly, time-consuming and labor-intensive “wet” construction processes during repair. That significantly increase the building’s weight, distorting the interior and diminishing the geometric dimensions of the room.
The use of additional steel load-bearing elements is characterized by the need of leveling plasters, large number of welds, tight connection between existing and new elements.
There are modern methods for reinforcing floor constructions – beams and slabs, as well as vertical bearing elements – washers (shear walls) and columns. Fiber-reinforced systems are modern solution to many problems with applications ranging from large infrastructure to small family houses. Fiber-reinforced systems are characterized by high efficiency and security, lower cost, low-volume repairs and quick entry into service.
The most common case causing this effect is the change of the purpose of the premises, accompanied by an increase in the useful load in them.
This must be determined by a specialist who should provide solutions against future damage to the structure. The repair must prevent from further defects and destruction, damage to the appearance of the structure and damage to the equipment and people as soon as possible.
In the event of a major overhaul, it is always a good idea to turn to a constructor to identify possible needs related to the construction itself and its trouble-free operation in the future. This consultation is obligatory for changes in the function spaces associated with the demolition or removal, even when the walls are not load-bearing.
Loss of money and time is if after the overhaul it turns out that the structure has weak spots or can not respond to the increased loads after the repair. Such additional loads causing damage may be increased by weight from pavements, storage areas, new partitions, installation of jacuzzi, fitness equipment and more.