Sewer inspection report. Inspection of engineering systems. Utility network survey cost calculator
In the case when a property is purchased, as well as during its reconstruction, a conclusion on the technical condition of the building and communications, drawn up based on the results of the work during which the survey was carried out utility networks And building structures, becomes one of the main documents allowing to assess the possibility of stable operation of a property in new conditions.
Are examinations really necessary?
Any building requires periodic inspection of communications, both external and internal. The need to carry out such work is caused by the wear and tear of the networks, and if the operation services do not constantly monitor their condition, then the occurrence of emergency situation leading to material damage. Equally important is a comprehensive examination of structures and networks at the stage of assessing the cost of the acquired object. If external communications and internal networks are in good condition and are suitable for use for the purpose planned by the new owner, then the value of the property has the same value. If, after the purchase, it is necessary to relocate or repair networks, or reconstruct the life support systems of the building, then these costs should be taken into account when determining the final cost of the purchase. For several years now, the conclusions made by the Expertsystem company based on the results of surveys have made it possible to determine the optimal cost of the object for both parties.
In the case of reconstruction of a building, inspection of building structures and networks is mandatory. The conclusion about this work is one of the main documents in the list of initial data for design. In addition, the results of the work during which the survey was carried out engineering systems and building structures, drawn up in the form of a report, become a document on the basis of which examination bodies evaluate the correctness of the decisions included in the project, their compliance with the requirements of current standards and issue an opinion on the suitability of the documentation for implementation. And the expert’s conclusion, in turn, is necessary to obtain permission for the construction and reconstruction of a real estate property. It should be noted here that reports on technical examinations performed by the Expertsystem company are always accepted by the examination bodies without comments.
Inspection of utility networks is the key to the operability of the building’s life support systems
To assess the condition of the property, a technical inspection of the building's utility networks and building structures is carried out, which is specified when the customer draws up the work assignment and is taken into account by the contractor when developing the inspection program. When determining the operability of the building's engineering networks, the Expertsystem company performs the following work:
- visual and instrumental inspection of water and heat supply pipelines, sewerage, steam and gas pipelines providing the property with these types of energy resources. The inspection of external networks is carried out from the point of insertion into the backbone networks specified in the act of dividing the boundaries between the energy supplier and the owner of the property, to the point where the network enters the building;
- inspection of the water supply system, when checking the compliance of pipe diameters executive documentation, presence and condition of valves, safety of well structures. During examination internal networks cold water supply, the condition of the pipework and operability are recorded shut-off valves, availability of flow meters. The technical report must indicate the presence, location and serviceability of fire hydrants, as well as the completeness of fire hydrants inside the building and the operability of the fire water supply;
- sewer inspection, during which the condition of inspection, control and differential wells, trays is determined, the diameter and material of pipes is recorded, and the presence or absence of counterslopes between wells is checked. Internal sewerage checked to determine the degree of sealing of pipe joints and the safety of wastewater receivers;
- inspection of ventilation and air conditioning systems, which determines the degree of wear and contamination of air ducts, reliability ventilation equipment, reliability of thermal insulation of air intake points supply ventilation, safety of louvered grilles and deflectors. The safety and operability of the fire smoke removal system is checked;
- examination electrical networks, when the operability of the facility’s power supply line is checked from transformer substations where the cables are connected (if there are two or more inputs) to the input and distribution devices inside the building, the characteristics of the cable are recorded. Inside the building, the brands of wires and cables, the brands and serviceability of power and lighting panels, and the safety of terminal devices are determined. The presence or absence of a ground loop is also noted.
A full inspection of engineering systems is quite labor-intensive work and requires highly qualified performers. But the results and recommendations obtained will make it possible to specifically determine the amount of costs required to bring the utility networks of a property to a condition that guarantees safe operation buildings and the absence of claims from supervisory authorities. This is exactly the kind of work offered by the Expertsystem company, which employs specialists high level, used for examinations modern devices and software.
Inspection of building structures - checking the reliability of the building
Simultaneously with determining the condition of utility networks, an inspection of the structures of a building or structure is carried out, based on the results of which a conclusion is drawn about the condition of individual structural elements, and recommendations are given on ways to eliminate identified deviations from standard indicators. Depending on the scope of work provided for by the task, the following is performed:
- inspection of foundations with determination of their depth, the size of the base, and if necessary, holes are opened and the condition of the foundation soils is checked. Most often, at the same time as the foundations, the basement is inspected, when the safety of the walls and the tightness of entry points are recorded. engineering communications into the building, construction and preservation of floors;
- inspection of columns, crossbars, beams, floor slabs, during which their actual dimensions are measured, if necessary non-destructive methods the reinforcement of structures and the strength of concrete are determined, on the basis of which a conclusion is made about the possibility of transferring additional load to the frame elements (during the reconstruction of the building) and the suitability of the frame elements for further use. Measurements are also made of the support values of structural elements in order to finally give recommendations for increasing them;
- mandatory instrumental examination metal structures building frame. During these works, the absence of damage to the elements is checked, deflections are measured, and the state of anti-corrosion protection is determined. The supporting components of the structures are inspected, and the presence, number and diameter of bolts, nuts and washers or the length and leg of the welds are recorded. Based on the results of the work phase, when the metal structures were examined, the report proposes measures to correct the identified deficiencies, including the necessary reinforcement sketches. The results of visual and instrumental examinations are taken into account when developing design solutions carrying steel structures reconstructed buildings;
- inspection of walls, when the thickness and material of the fence are checked, if necessary, samples are taken to determine the heat specifications structures and their compliance with energy saving requirements. The quality of the panel joints and the condition of the sealing materials are checked.
- inspection of the roof of civil buildings with attics, during which the condition is examined truss structures and places of their support, integrity and presence of fastening elements roofing materials with a pitched roof, safety of gutters and pipes, quality of thermal insulation attic floor. For a flat or low-slope roof, the roof inspection consists of assessing the condition of the rolled carpet, as well as determining the physical and mechanical characteristics existing insulation. This stage also serves as the basis for developing measures to improve the energy efficiency of the building.
Who can you trust to conduct examinations?
A comprehensive inspection of engineering systems and building structures is a very complex and responsible job, when an error can lead to quite serious consequences. Therefore, enterprises providing services of this profile must necessarily have the approval of a self-regulatory organization, confirming the presence of qualified personnel, as well as the necessary material base. The Expertsystem company also has such permission.
The Expertsystem company has been carrying out inspections of buildings and structures in Moscow and the Moscow region for more than one year, and each time the reports prepared by the company’s specialists received positive characteristics from expert bodies, and the assessment of the condition of the property became the basis for determining a fair price for the building or structure.
1. We conduct inspections of engineering systems in the following scope:
- Inspection of hot water supply systems - description DHW systems, pipeline inspection and circulation pumps, description of cooking technology hot water and used water heaters, carrying out instrumental measurements - temperature measurements, determining the thickness of corrosive deposits. Development of drawings with the drawing of pipelines and distribution of the hot water supply system on floor plans, indicating the diameters and linking them to existing structures.
- Inspection of heating and heat supply systems - inspection of the thermal input and central heating substations, description of the heating system and wiring diagrams of the supply and return lines, inspection heating devices, taking temperature measurements, determining the thickness of the narrowing of the live section of pipelines, drawing the heating system on floor plans.
- Inspection of cold water supply systems - inspection of water supply to the building, inspection of the metering unit cold water and instrumentation, description of the water supply system, determination of the thickness of corrosion deposits in pipelines, drawing of the cold water supply system on plans with diameters indicated.
- Inspection of sewerage systems - inspection of pipelines and sanitary fixtures, inspection of ventilation risers and revisions, determination of the slope of horizontal pipelines, drawing of sewer risers and fixtures on floor plans.
- Inspection of ventilation systems - type determination ventilation system, inspection of ventilation ducts and ventilation equipment, determination of air exchange in the inspected rooms of the building, identification of defects and comparison with regulatory requirements.
- Inspection of waste disposal systems - inspection of waste collection chambers, establishing the integrity and tightness of the shaft, establishing compliance with the requirements of design and regulatory documentation.
- Inspection of gas supply systems - description design diagram gas supply systems, study of documentation for gas pipelines and equipment, determination of compliance of the gas pipeline system with design documentation.
- Inspection of the technical condition of drains - a description of the drainage system, reveals unacceptable damage - blockages, tightness of joints, the presence of grates and caps, the presence of an electric heating cable.
- Inspection of electrical networks and communications - description of the input distribution device, inspection electrical cabinets on the floors, inspection lighting fixtures, inspection of low-current systems, application electrical panels and distribution of power supply to building plans.
- Survey engineering equipment- the actual condition of the equipment used is determined for various purposes. Physical and moral wear and tear is determined in accordance with identified defects and malfunctions.
2. Composition of the technical report on the inspection of engineering systems and networks
1. Explanatory note - description of the surveyed engineering systems
2. Inspection of heating systems and heat supply of the building
- description of heating and heat supply systems
- drawing heating systems onto floor plans
- instrumental examination of heating and heat supply systems, defects, conclusions and recommendations
3. Inspection of building ventilation systems
- description of ventilation systems
- drawing ventilation systems onto floor plans
- instrumental examination of ventilation systems, defects, conclusions and recommendations
4. Inspection of water supply and fire extinguishing systems of the building
- description of water supply and fire extinguishing systems
- drawing water supply and fire extinguishing systems on floor plans
- instrumental examination of water supply and fire extinguishing systems, defects, conclusions and recommendations
5. Inspection of building drainage systems
- description of drainage systems
- drawing drainage systems on floor plans
- instrumental examination of drainage systems, defects, conclusions and recommendations
6. Inspection of building electrical systems
- description of power supply systems
- drawing electrical systems onto floor plans
- instrumental inspection of power supply systems, defects, conclusions and recommendations
7. Results of calculations of existing loads on the building, analysis of input nodes for the possibility of increasing loads, identification of places for possible connections of new networks
8. Conclusions based on the results of the inspection of the building’s engineering systems
10. Executive diagrams - plans with applied engineering systems
Service " Technical audit of engineering networks» is a set of diagnostic measures that are necessary to record information about possible violations in the operation of engineering equipment. Based on this data, a plan is created for the reconstruction or replacement of certain parts of the engineering system. In the long term, this measure helps prevent accidents and breakdowns.
Inspection of utility networks includes 4 types of work:
Visual inspection and assessment of the technical condition of utility networks
This block of work includes a visual inspection design features building and its engineering systems. At this stage, specialists identify damage, on the basis of which a defective list is formed. Staff and representatives of contractors are also interviewed to obtain the most objective data possible.
Checking the compliance of actual qualitative and quantitative parameters with those recommended for a given class and type of building
The second stage of work is carrying out a series of measurements to determine the key technical parameters, recording the examination results. The obtained data is compared with acceptable values, and violations are identified.
What parameters are checked for compliance with standards?
- indoor air temperature in summer - 23–25°C, in winter - 22–24°C;
- air humidity 40–60%;
- circulation air masses 60 m 3 /h per 10 m2;
- air exchange in the workplace - 0.13–0.25 m/s;
- illumination - 300–500 lux;
- The noise level should not exceed 55 dB.
During audit The following measuring instruments are used:
- Thermal imager - helps to identify defects in the thermal protection of a building.
- Current electric clamp - measures current strength.
- Multimeter - measures voltage, resistance, current.
- Sound level meter - measures the noise level.
- Pyrometer - measures surface temperature.
- Anemometer - measures the speed of air flow in closed systems and in open areas (measuring air flow speed inside air ducts).
- PH meter - measures the level of hydrogen ions in the system.
- Luxmeter - measures the level of illumination of the workplace.
- A device for measuring CO2, temperature and air humidity.
Analysis/reconciliation of current technical documentation
The third block of work includes:
- checking the availability of correctly completed documentation (in accordance with the register of documents that regulates the activities of operating organizations);
- checking the availability of equipment documentation ( technical passports);
- checking compliance with safety regulations, as well as the availability of logs and their correct filling;
- analysis of concluded contracts with resource suppliers;
- diagnostics of metering devices.
Preparation of a detailed report with the results of the audit of engineering systems
On final stage a report is drawn up with conclusions on the fact of the comprehensive comprehensive utility network surveys.
The report consists of the following documents:
- conclusion with the inspection results and assessment of the technical condition of each of the engineering systems separately;
- defective statement with photographs and detailed description faults, with the timing and estimated cost of elimination;
- Conclusion with the results of measurements of premises parameters highlighting inconsistencies acceptable standards;
- reconciliation report on the presence/absence of mandatory executive and technical documentation on the object. Recommendations for the quality of maintaining operational logs;
- determination of compliance or non-compliance of engineering systems with requirements fire safety, electrical safety, sanitary-epidemiological and environmental standards;
- conclusion on the operation of metering devices and recommendations for reducing the costs of resource consumption.
