EuroPHit - school

CS11 “Tsanko Dustabanov” Primary School, Gabrovo

iglika_lutzkanova — Fri, 23 May 2014 15:35:34 +0000

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

Other downloadable materials:

PHPP Result Sheet - “Tsanko Dustabanov” Primary School, Gabrovo, Bulgaria

Overall Refurbishment Plan - “Tsanko Dustabanov” Primary School, Gabrovo, Bulgaria

Section A EnerPHit Retrofit Plan - “Tsanko Dustabanov” Primary School, Gabrovo, Bulgaria

Section B EnerPHit Retrofit Plan - “Tsanko Dustabanov” Primary School, Gabrovo, Bulgaria

Section C EnerPHit Retrofit Plan - “Tsanko Dustabanov” Primary School, Gabrovo, Bulgaria

Address:

25, Hristo Smirnenski Blvd, Gabrovo

5300 Gabrovo

Bulgaria

CS10 “St. Kiril and Methodius” Primary School, Gabrovo

iglika_lutzkanova — Fri, 23 May 2014 15:24:57 +0000

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):

7 312.00 m²

Key words:

school

step by step refurbishment

Original situation:

The building is constructed in 1970. It has a concrete structure with external brick walls (25 cm.) and concrete flat double ventilated roof.

The building consists of four blocks:

Block A is administrative, with two floors and a treated floor area area of 394 m2;

In blocks B and C there are classrooms, specialized laboratories, two computer rooms and toilets.

Block B consists of three floors and a basement, with total area of 2116 m2.

In the basement, there are a kitchen and a dining room.

Block C consists of four floors and a basement with total area of 3997 m2.

The basement accommodates a small gym, storage rooms, a boiler room and several workshops.

Block D consists of two floors (basement and ground floor) both of them being used as sport halls.

The fully heated basement (blocks B, C and D) is partially below the ground level.

The windows have been replaced in 2005 with PVC and aluminum (in the gym) with double glazing and white float glass 4/20/4mm.

Since 2013, the school is connected to the central gas heating.

Modernisation proposal:

The Project proposes the following refurbishment steps:

STEP 1- roof insulation – placing 30 cm. glass wool insulation on the top of the lower slab of the ventilated double roof .

STEP 2 – mounting 20 cm EPS with graphite insulation on the walls, reduction of the radiator dimensions, improving the airtightness layer, implementation of the ventilation with heat recovery systems.

STEP 3 – External underground wall insulation, perimeter insulation, insulation above the ground floor slab in the Gym.

STEP 5 – Replacement of windows: The PVC windows will be replaced in 10 years, when they will be 20 years old. The aluminum windows will be replaced in 20 years, when they will be 30 years old.

STEP 6 – Implementation of Renewable Energy Sources

The expected Specific Heating Demands/ Primary Energy Demands are:

Blocks A, B, C:

Before 142 kWh/(m²a)/233 kWh/(m²a)

After: 17.3 kWh/(m²a)/80.5 kWh/(m²a)

Block D:

Before 228,4 kWh/(m²a) / Overheating, no result in PHPP

After: 18,4 / 116,2 kWh/(m²a)

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
CS10 BWHB0.pdf	1.4 MB
CS10 EWEJ01.pdf	1.6 MB
CS10 EWEJ02.pdf	1.58 MB
CS10 EWEO 01.pdf	752.81 KB
CS10 FRPW01.pdf	1.98 MB
CS10 FSFE01.pdf	619.1 KB
CS10 FSFE02.pdf	1.52 MB
CS10 ROEA01.pdf	1.51 MB
CS10 WIBO01.pdf	1.46 MB
CS10 WIBO02.pdf	1.94 MB
CS10 WITB01.pdf	1.7 MB
CS10 WITO01.pdf	1.32 MB

Other downloadable materials:

PHPP ResultSheet - “St. Kiril and Methodius” Primary School, Gabrovo, Bulgaria

List Of Products - “St. Kiril and Methodius” Primary School, Gabrovo, Bulgaria

Sectors ABC EnerPHit Retrofit Plan - “St. Kiril and Methodius” Primary School, Gabrovo, Bulgaria

Sector D EnerPHit Retrofit Plan - “St. Kiril and Methodius” Primary School, Gabrovo, Bulgaria

Overall Refurbishment Plan - “St. Kiril and Methodius” Primary School, Gabrovo, Bulgaria

Address:

69, Mogilov Blvd.

5300 Gabrovo

Bulgaria

CS02 RosMuc Secondary School

mosart — Fri, 23 May 2014 09:57:17 +0000

Current status:

CANCELLED PROJECT

Country:

Ireland

Building Owner:

Vocational Educational Committee (VEC)

Consulting EuroPHit Partner:

MosArt - Contact person Mariana Moreira

Existing treated floor area (usable floor space):

579.57 m²

Key words:

school

step by step refurbishment

extension

Original situation:

This school is a candidate for the EnerPHit Standard. The site is currently made up of three permanent buildings ranging in age from 100 years, to 60 years to 50 years. The buildings are unconnected, so rendering the thermal envelope inefficient through an extremely poor compactness ratio (huge surface area – bearing in mind these three blocks being exposed to the elements of the Atlantic Ocean). The existing building complex comprises three detached single-storey buildings formed around a central play yard. The largest, Main Building to the west, was constructed of solid block in 1945, an extension to the north and contiguous Metalwork Block was constructed of block cavity in 1960 and Classroom/Office to the east was also constructed of block cavity but in 1990. The floors are of poured concrete and roofs of pitched timber trusses. Ventilation is natural, using opening window sections. An oil-fired central heating system with radiators provides heating.

Modernisation proposal:

The proposed development, in essence, comprises a step-by-step expansion, retrofit and enclosure of open space that includes by default the elimination of many existing external walls by their becoming internal. The initial works comprise an extension of four classrooms followed by circulation lobbies connecting the classrooms to the existing structures which will already reduce the extent of external walls and, so, space heating demand. Other works include a part new roof to the Main Building and a complete new roof to Metalwork Block. Between 2015-2016 all three buildings will be retrofitted in respect of walls (external insulation), windows and roofs. It is expected that by or before 2018 the Central Space, currently the play yard will be roofed over and have an insulated floor installed. Airtightness will be achieved primarily during the process of fitting of new doors and replacement of windows with those of higher performance. A mechanical ventilation heat recovery (MVHR) system will be installed throughout the school. The existing heating system will be retained for back-up, continuing to use radiators for space heating and DHW.

Efficiency improvement:

Current situation:

The site is currently made up of three permanent buildings ranging in age from 100 years, to 60 years to 50 years. The buildings are unconnected, so rendering the thermal envelope inefficient through an extremely poor compactness ratio (huge surface area – bearing in mind these three blocks being exposed to the elements of the Atlantic Ocean). The existing building complex comprises three detached single-storey buildings formed around a central play yard. The largest, Main Building to the west, was constructed of solid block in 1945, an extension to the north and contiguous Metalwork Block was constructed of block cavity in 1960 and Classroom/Office to the east was also constructed of block cavity but in 1990. The floors are of poured concrete and roofs of pitched timber trusses. Ventilation is natural, using opening window sections. An oil-fired central heating system with radiators provides heating. A fourth classroom block is designed and going through the planning process. This will be built to Passive House standards. Along with the construction of this block, it is planned to retrofit the roof of the existing three blocks. The new classroom block to the south is currently at the planning stage in the Galway County Council. The retrofit works for the existing blocks is on hold due to financial issues.

Challenges of the project:

The proposed development, in essence, comprises a step-by-step expansion, retrofit and enclosure of open space that includes by default the elimination of many existing external walls by their becoming internal. The initial works comprise an extension of four classrooms followed by external circulation lobbies connecting the classrooms to the existing structures. Other works include the retrofitting of the roof of the existing three blocks. Between 2015-2016 all three buildings will be retrofitted in respect of walls (external insulation), windows and roofs. Despite the fact that external insulation will be used on the existing buildings the architect does not seem to be willing to trust the use of external insulation as the outer thermal envelope for new build, rendering construction details to be carefully design to avoid thermal bridge in particular when the new and existing walls meet. It is expected that by or before 2018 the Central Space, currently the play yard will be roofed over and have an insulated floor installed. However the first retrofit step is dependent on financial release from the Department of Education. This fund has not been available so far and there seems to be no clear information indicating the time frame for this grant. At the moment the retrofit progress is temporarily on hold due to current financial limitations.

Other downloadable materials:

PHPP Result Sheet - School, Ros Muc, Ireland

Overall Refurbishment Plan - School, Ros Muc, Ireland

Address:

Gairmscoil na bPiarsach

Ros Muc

Co Galway

Ireland

PHPP verification sheet before retrofit:

after retrofit: