Burgas, Bulgaria
Burgas, Bulgaria
The demo case building in Bulgaria is a primary school located in the north of Burgas and around 17km away from the city centre. The neighbouring area is residential and the school hosts about 100 students and 17 members of permanent staff. The basement and the first floor of the building were built around 1950, and the second floor around 1966. In total, there are four classrooms on the first floor and two classrooms, a PC room, and two staff rooms on the second floor.
In 2013, the school was renovated with thermal insulation under the project of the Municipality of Burgas: "Improving energy efficiency". Specifically, the renovation of walls and roof, replacement of windows and heating installation were undergone.
The part of the building that will be renovated through the RE-SKIN project is marked in red below. The construction and installation works will last for around 3 months and should start in spring of 2025.
Location: Hadzhi Dimitar 8, Banevo district
Owner: Burgas Municipality
Construction/retrofit date: 1965 & 2005
Total floor area: 488.64 m2
Total height: 11.91 m
Climate: Continental
Partner: Burgas Municipality
Contact Person:
Yoana Angelova, y.angelova@burgas.bg
Kamer Ahmedov, k.ahmedov@burgas.bg
State of the building before the RE-SKIN renovation
Facade: brick walls with internal and thermal insulation system of expanded polystyrene foam with a thickness of 8-10 cm and exterior decorative plaster.
Roof: Thermally insulated pitched roof with 4 slopes. The roof is also waterproof and has mineral wool, OSB boards, tiles and wooden beams.
Windows: There are 16 identical windows on the building’s sides and shutters attached in 4 of them. Also, there are 7 windows in the front and back side with various technical characteristics, such as PVC profiles, double- glazed glazing, and ordinary glasses.
Heating: There are two water heating boilers working with compressed natural gas, located in a boiler room of the adjacent building. The heat is distributed through 27 iron glider radiators of different sizes.
Hot water: The Domestic Hot Water (DHW) System includes two electric boilers installed in sanitary facilities, which are in operation for 1 hour per working day.
Cooling: There are no air-conditioners for cooling the classrooms during the warm periods. However, there are two air conditioners used only for teachers’ and the director’s rooms.
Lightning: The lightning of the school is mostly provided by luminescent and incandescent lamps, and partially by LED lights.
Electricity demand: The electrical appliances used are of low energy demand, and include the following: 13 computer co
Key challenges
- The retrofit work should be carried out quickly without interfering with classes and children work.
- The new heating system should be installed before the dismission of the outdated existing one.
- Due to the geometry constrains of the roof, custom components are needed to the optimisation of the BIPVT performance.
Architectural plan
