Local residents have rights
Construction activities like blasting and piling are noticeable. They create noise, vibrations and airborne shockwaves.
It is quite natural for local residents and other affected parties to view such activities negatively and to worry about what could happen. Noise can also cause mental illness in people and can disturb animal life.
Projects do not simply affect the people who live in the immediate area. New traffic routes, for example, may run under churches and museums or next to factories, laboratories and hospitals with sensitive equipment. The number of persons who can be categorised as third parties could be many times greater than the number of residents in the immediate vicinity.
Communication between those who work with construction projects and those who are affected by them is extremely important. Nitro Consult is often engaged to perform inspections and vibration measurements and to facilitate the communication between local residents/affected third parties and the client.
Inspection before and after
Properties and facilities that are located within the risk area are inspected before and after blasting or other vibration-generating construction activities. Information about the inspection is provided by Nitro Consult, usually by way of a letter. The inspection is paid for by the party who has ordered the construction work, in other words the property developer.
Nitro Consult’s personnel always carry readily visible company ID. People who say they are there to perform an inspection but who lack valid company ID should not be granted access. If any problems arise, please immediately contact Nitro Consult’s head office by calling (+46)8-681 43 00.
During the initial inspection (before the disruptive activity) a note is made of any defects in walls, floors, ceilings and tiles etc., with all such defects recorded in the inspection report. A copy of the inspection report is sent to the owner or representative of the property. This report is then used as the basis for the full inspection (after the disruptive activity), to see if any changes have occurred.
Sometimes an inspection might only cover the facade, but for a full inspection Nitro Consult will need access to all premises and apartments in apartment blocks, as well as to all areas in houses. It is desirable if someone who lives in the house, or perhaps a relative or neighbour, can be present during the inspection. In certain cases when it comes to apartment blocks, the caretaker or chairman of the tenant-owner association can be present.
When the inspection involves pressure testing and there are brick fireplaces, open fireplaces or tiled stoves, we also require access to the roof and attic. Please make a ladder available if such is required.
Changing the time of the inspection
In certain cases it is possible to change the time of the inspection. Please do so with as much notice as possible. It is difficult to change the time of the inspection on the same day the inspection is due to be carried out. On the notice of the inspection there are details of the right contact person under “In the event of questions please contact”.
If you missed being home when the inspection took place, please contact the inspector – it may be possible to book a new time.
Vibration sensors are usually assembled on the buildings that are closest to the worksite. Prior to commencement of the work, a risk analysis is usually carried out with a measurement point plan and vibration limits for each building. There is no guarantee that measurements will be carried out on all buildings around a worksite.
The vibration sensor on a residential dwelling is normally assembled in the foundations. We drill a hole that is 8 millimetres in diameter. In this hole we then place a small expander in which the sensor is held in place. The hole is very small and does not impact on the building’s functionality.