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Lack of insulation or poorly insulated partition walls contribute to significant heat loss and consequently high operating costs of buildings. The places where heat flows from inside the house are the so-called cold bridges. They are most common in: windows and exterior doors and their surroundings, walls of cellars and foundations, connections between the balcony and the ceiling, or connections between the roof and the facade.
Also read: How do you not lose heat in the house and lower your bills? The most common mistakes and practical tips
Thermomodernization is recommended in all tested buildings
In the reports of the conducted research, the residents of Wrocław who applied for the “Warmth in the house” project received general information and a description of the thermal imaging method, the preparation of the results along with photos of the property and a description of the detected leaks with a summary.
I am satisfied with the research carried out. The whole thing only took about 30 minutes, in a nice atmosphere. During the measurements, which were carried out in the evening due to the need for a sufficiently low outside temperature, we were shown places where we lose heat from the house (the building is insulated and is from the 1980s – editor’s note). I expected this, the results are no surprise to me. Most importantly, we received immediate advice and ready-made solutions to improve the building’s density
Jerzy Gbur, resident of Stabłowice and participant in the program “Ciepło at home”
Warmth in the house – the main conclusions from the study
- No fewer than 27 of the 50 homes are partially or partially insulated. No thermal bridges were found in only two cases of the insulated buildings (thermomodernization works had already been carried out). In the other buildings, large thermal bridges were detected, mainly at the joints of the outer walls, the ground around the building and under the balcony slabs.
- The largest heat losses are mainly caused by basements, areas around balcony slabs, exterior doors and exterior frames.
- Based on the research conducted, thermal modernization is recommended in any premises – significant heat losses have been observed even in insulated buildings.
Thanks to the “Warmte in huis” project, residents learned how heat escapes from their home and how to save money and energy, while improving their thermal comfort and having a positive impact on the environment.
Katarzyna Szymczak-Pomianowska, Director of the Sustainable Development Department of the Marshal’s Office
Explore first, then warm up
By conducting tests before carrying out thermal modernization, you can avoid unnecessary expenditure on elements that have little impact on the energy efficiency of the building. As many as 38 homeowners who have been tested with a thermal imager are planning changes in thermal modernization. Therefore, the report on the research conducted will certainly facilitate the investment.
People who have participated in the “Ciepło w Domu” project and are just planning to modernize the building can more easily plan where the renovation will start. The test results allow them to detect defects and obtain information on the correct installation of windows and exterior doors. On the other hand, the residents who had already modernized the house were given the opportunity to check whether the works were being carried out correctly
Małgorzata Brykarz, Director of the Ministry of Water and Energy of the Marshal’s Office
50 buildings were surveyed, most before 1990.
50 buildings took part in the survey – 78%. of these were built before 1990, which translates directly into the type of material used to build the walls. The vast majority of the walls of the buildings are made of brick – 40%, 32%. real estate was built with mixed materials and 10 percent. buildings were built with hollow bricks. The other raw materials are expanded clay, silicate or concrete blocks.
Also read: “Warm at home” program
42 percent of the surveyed properties. are detached houses – exactly the same number are terraced houses, and 16 percent. are terraced houses.
The vast majority of buildings surveyed with a thermal imager are heated with gas stoves – 78%. Only six properties (12%) use solid fuel stoves (coal/coke/eco-pea coal/biomass) as their primary heating source.
Renewable energy sources are used in thirteen buildings – 62 percent. are photovoltaic panels, 31 percent. solar collectors and 7 percent. uses a heat pump.
It is worth noting that among the buildings examined there were as many as 12 in which the heating system was changed to ecological with the municipal programs for the replacement of KAWKA and KAWKA Plus pacifiers.
by Aleksandra Wachnicka