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Customized inside thermal insulation system for building envelopes

There are thousands of buildings and apartments with a very low heating energy efficiency. Because of different restrictions and obstacles especially for historical buildings or those protected as monuments the only possible solution could be inside thermal insulation.

Despite the many familiar solutions, established insulation systems and ever stricter regulations, the average energy efficiency of buildings in Slovenia is still low. Energy wasteful buildings in Slovenia, as well as in Europe in general, represent the greatest possible potential for energy savings and, consequently, also a reduction in CO2 equivalent emissions. Why should this energy not be used more intelligently, or the costs and penalties on a national level under the heading of pollution even be avoided? Installing thermal insulation is also known to be one of the cheapest methods of energy saving. Studies and practice both here and elsewhere in the world show that it is possible by simple improvement of circumferential walls and ceilings to reduce energy needs for heating spaces by at least a half. With a suitable choice of thermal insulation, proper planning of the construction complex of circumferential walls, the choice of appropriate energy source and heating system, it is also possible to reduce CO2 emissions by 80 per cent. Heating one square metre of average accommodation area in Slovenia annually requires from 170 to 200 kWh, which represents around 18 litres of light heating oil or 18 cubic metres of fuel gas for each heated square meter of accommodation in the heating season, without taking into account needs for sanitary water. With efficient insulation, this amount cannot just be halved but reduced to a quarter or even less. The main purpose of thermal insulation is to create thermal comfort and to prevent an unhealthy living environment, together with simultaneous reduction of undesirable heat losses and thus indirectly influencing the amount of energy used for heating and cooling and, finally, energy savings and protecting the environment. The predominant transfer of heat occurs through the building envelope by conduction, i.e., by contact of warmer and colder bodies. It is known that the construction of an external thermal envelope of the entire building is the most efficient solution but, unfortunately, this is not possible in many cases or is extremely difficult, even too expensive to be justified. The commonest examples of use of the envisaged system are: • historical buildings or those protected as monuments, objects in town cores protected as monuments, whereby interventions on the external envelope (primarily facades) of the building are not allowed, • for internal thermal insulation of large-scale multi-apartment objects (not necessarily culturally protected) for the purpose of achieving energy friendly housing, • multi-apartment objects in which it is difficult to obtain the consent of all owners (in Slovenia, the 100% agreement of all co-owners of a building is still required by law), • interventions in the thermal improvement of the external building envelope can be performed for individual housing units, individual spaces or even individual walls, • the exterior of buildings is not damaged, despite the installation of a high quality system of thermal insulation of the circumferential walls, ceilings or the external building envelope. The external appearance of culturally protected buildings is preserved in entirety, remaining changed, • because of the financial crisis, more investment is to be expected in financially less demanding projects (interior thermal insulation is certainly such a case, especially if it is compared with large more expensive systems of external thermal insulation of facades – ETICS systems), erecting scaffolding, dependence on weather conditions etc. • although there are most examples of difficulties with wall insulation, we are also planning a system for application on ceilings, thus horizontal as well as oblique surfaces
Acronym: 
SCIENTIS
Project ID: 
8 713
Start date: 
01-01-2014
Project Duration: 
36months
Project costs: 
1 330 000.00€
Technological Area: 
Thermal insulation, energy efficiency in buildings
Market Area: 
Energy Conservation Related

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