A survey plan can be devised for the energy certificate of a building, for assessing the technical conditions of historic buildings and churches, for recording this for future generations, and when it is required by the construction authority (e.g. in case of demolition). In addition, in the course of the expansion of existing buildings, it is essential that the actual conditions are accurately recorded, as the design process is based on that. Surveying a building may be necessary when the construction is completed, to register deviations from the planning application documents and from the construction plans, which, in the form of an as-built plan, is useful for management and for repair work.
After the discussions, we gather all available plans, hard copies or digital versions, and we create a photo documentation during a site inspection. After that the building is surveyed with the most appropriate tool: measuring tape, laser distance measurer or laser scanner. How the survey is conducted depends on the type of the building, the size and shape of the rooms, the level of detail, content and scale of the survey, the available drawings (hard copies or digital versions) and the type of the final product. Different specialties may be involved to supplement the accurate survey of the buildings, to survey the load-bearing structures, mechanical and electric systems.
Building diagnostics is the specialist term for the professional services when the conditions of a building are surveyed. The aim of building diagnostics is to measure the current technical performance of the structures of a building, and to establish if it meets future requirements. The structures most typically examined are load-bearing structural members, rails, doors, windows, water insulation, thermal insulation, vapour barriers, etc.
Building diagnostics may be requested for several reasons: because of continuous leaks, mould, new cracking in the building; before reconstruction; investors also consult us before purchasing new properties.
We create a photo documentation and check measurements during the site inspection, and, if necessary, we conduct specialist examinations with instruments (e.g. thermal imaging, lab tests). We perform smaller explorations and determine the location and method of larger explorations so that the contractor can perform them safely. The necessary number of inspections depends on the complexity of the task and the data gathered in advance, but a preliminary and a detailed inspection are absolutely necessary.
We create a written documentation about the data gathered, the examinations conducted and the calculations, and give this to the client together with the photo documentation. In the documentation we indicate the cause of the problem, and make suggestions about proper repair methods.
Geodetic surveys are legally required to be attached to the planning application documents, when the building permit plans are created. Besides, recording and geodetic surveying of the existing terrain and landmarks is essential for the design process.
Information gathered this way record the size, the area, the incline and the topography of the plot, and the location of the vegetation. Structures on the area, and the location, height and geometrical parameters of neighbouring or adjacent buildings are recorded. In case of historic buildings or buildings in a historic environment, it is extremely important to carry out a geodetic survey of the facade, to record the mass of the building and to create a computer model.
In addition to supporting architectural design with geographical information, we provide assistance, using land surveying methods, to other construction or design projects, such as environmental monitoring and surveying during construction.
We conduct every survey with the geometric accuracy and sampling point density required by the specific task. The drawings of the survey documentation are provided in dfx format, the general file format of GIS and CAD software programmes. If required, we can create a photorealistic spatial model.
With technology rapidly developing in recent years, new possibilities have emerged in surveying buildings and in preparing the renovation of historic buildings. One of the most cutting-edge methods for collecting data in geodetic surveys is laser scanning. Information can be obtained about landmarks and buildings without physical contact.
With laser scanning, the 3D coordinates of millions of points can be measured with great accuracy within minutes. The product of the survey is a three-dimensional “point cloud”, from which the geometric data of the surveyed objects can be extracted in a subsequent evaluation.
The first stage of the process is the survey, the aim of which is to create a perfectly accurate image of the given space or a part of it. The scanner emits laser beams, and places the points in space according to the reflection and its intensity. From these points a so-called point cloud is generated, which is identical to the surveyed area or surface to a millimetre accuracy. The density of the points can be adjusted, which is a significant factor, as the level of detail and accuracy of the survey depend on it. The design process starts with importing this point cloud to the design software. This provides a three-dimensional, realistic image where you can measure and plan exact sizes. This way you can reconstruct systems and record and map existing facades and walls effectively, accurately and quickly.
Fields of application:
The energy need of the operation of a building is best described by the Energy Certificate. The Energy Certificate shows the electric and thermal energy consumption of a given building, and based on these values, the building is assigned to the appropriate energy class.
The Energy Certificate provides accurate data about energy consumption, and, consequently, about the maintenance costs of the building. This means it is in the interest of every property owner to obtain the highest class of Energy Certificate for their property, as this adds to the market value of the building.
According to Government Decree No. 176/2008 (VI.30) on the Energy Certification of Buildings, since 1 January 2012 an Energy Certificate shall be obtained for every newly-built property, for every property that is sold, and every property that is rented out for a period over 1 year.