CS11 “Tsanko Dustabanov” Primary School, Gabrovo

Current status:

IN TENDER PROJECT

Country:

Bulgaria

Building Owner:

Municipality of Gabrovo

Consulting EuroPHit Partner:

EnEffect Group - Contact person Iglika Lutzkanova

Existing treated floor area (usable floor space):

5 465.00 m²

Video:

"Tsanko Dustabanov" Primary School

Key words:

school

step by step refurbishment

Original situation:

The building consists of three interconnected blocks.

Block A was constructed in 1962. It consists of five floors and a basement ( 2040 m²). The block has a concrete structure with external brick walls (40 cm) and concrete flat roof in very bad condition.

Block B was constructed in 1946. It consists of three floors and a partial basement ( 2480 m²)

The block has a concrete structure with external brick walls (30 cm) and pitched ventilated roof above the last concrete ceiling slab with 10 cm glass wool insulation.

Block C, commissioned in 1999, is a large gymnasium with a 633 m² area. There is a ground floor connection to Block B with an area of 311 m², which comprises dressing rooms and bathrooms . The Hall and the connection consist of concrete structures with external walls of Ytong (20 cm). The roof of the hall has a steel structure. The connection has a flat concrete roof without insulation.

There is a boiler room in each block.

The building is connected to the district heating network.

Modernisation proposal:

The Project will propose refurbishment in the following steps:

Block A: Block A1: step 1) Roof insulation block A, wall insulation block A1; step 2) external wall insulation, new windows, shading, airtightness, ventilation, reducing thermal bridges; step 3) New District heating substation (the one from Gym could be used)

Block B: step 1) external wall insulation, change of windows, insulation of the perimeter of the foundations, airtightness , shading, ventilation; step 2) Adding thermal insulation on the roof above the existing one ; step 3) New District heating substation (the one from Gym could be used)

Block C: step 1) External wall insulation, ventilation, change of old PVC windows in the dressing rooms; step 2) Roof insulation; step 3) New LED lighting will replace the existing mercury lamps in the Gym. Fourteen solar panels for DHW will be added in block C (for the dressing rooms in the Gym). For achieving better comfort in the summer, new heat-pump air-to water to be installed in the Gym on later stages.

NEXT STEPS:

Block A: Insulation under the floor slab above the unheated basement block A , New LED lighting

Block B: Insulation under the floor slab above the unheated basement block A , New LED lighting

Block C: change of aluminium windows

Efficiency improvement:

PHPP verification sheets before retrofit before retrofit:

PHPP verification sheets before retrofit after retrofit:

Current situation:

The project is on tender stage. The construction works are expected to start in February 2016. There are no new pictures and no challenges foreseen yet.

Connection details and thermal performance of the building:

Attachment	Size
CS11 EWEJ01.pdf	1.73 MB
CS11 FSFE01.pdf	750.73 KB
CS11 FSFE02.pdf	865.75 KB
CS11 ROEA01.pdf	1.14 MB
CS11 WIBO01.pdf	791.93 KB
CS11 WIBO02.pdf	1.89 MB
CS11 ROEA02-small.pdf	430.15 KB
CS11 ROEA03-small.pdf	656.02 KB
CS11 WITB01.pdf	1.9 MB
CS11 WITO01.pdf	814.07 KB
CS11 WITO02.pdf	907.34 KB