ALLGEMEINE INFORMATIONEN RENOVIERUNGS-PROZESS SANIERUNGS-LÖSUNGEN BEWERTUNG

Notarjeva vila

Brunov drevored 17

5220

Tolmin, Slowenien

Architekt

Teja Savelli, Projekt d.d.

Kidričeva 9a, 5000 Nova Gorica

Besitzer

Občina Tolmin

Ulica padlih borcev 2, Tolmin

Bewohner

Občina Tolmin

Ulica padlih borcev 2, Tolmin

Ansprechpartner

Jana Podgornik

Posoški razvojni center

jana.podgornik@prc.si

Other Information

The house was built after the 1st world war as notary's villa in the former periphery of Tolmin where richer buildings were located. The house expresses the characteristics of secession and is listed in the Register of Slovene cultural heritage. Firstly served as a single family house, after the 2nd world war it was used for State security administration. Later it was rearranged to a four apartment building. The earthquakes in 1998 and in 2004 caused severe damage on the building. It was therefore included in the national programme of renovation after the earthquake.

ALLGEMEINE INFORMATIONEN RENOVIERUNGS-PROZESS SANIERUNGS-LÖSUNGEN BEWERTUNG

Energieeffizienz

28 kWh/m2.y

Klimazone Dfc

Höhe über dem Meer 200 m ü.d.M.

Heizgradtage 220

Unterschutzstellung denkmalgeschützt

Ensembleschutz:
Nein

Stufe der Unterschutzstellung:
Listed in national register of cultural heritage

Baualter 1900-1944

Letzte Sanierung:
2015

Gebäudenutzung Residential (urban)

zusätzliche Nutzung:
NA

Gebäudebelegung:
Permanently occupied

Gebäudefläche Nettogeschossfläche [m²]: 412,15

Gebäudetyp:
Detached house

Anzahl der Stockwerke:
3

Keller ja/nein:
Ja

Anzahl der beheizten Stockwerke:
3

Bruttogeschossfläche [m²]:
549,3

Thermische Gebäudehülle [m²]:
442,0

Volumen [m³]:
1685,89

NGF Berechnungsmethode:

Bauart

Brick masonry wall

Außen:
Rendered

Innen:
Plastered (on hard)

Dach:
Pitched roof

+ MEHR - WENIGER

RENOVIERUNGS-PROZESS

Architektur

BESCHREIBUNG

The building size is 15,35 x 12,70 m and constitutes of the basement, ground and first floor and the attic. The construction is made of bricks, the ceilings are wooden. The roof has four sloping sides with the elevation of 30°. The house was built in the town walking area in secession style. The facade was still in its original state. Originally this was a single family house with elements that showed the wealth of the owner. The investor wanted to insulate the walls from the outside but the facade itself was one of the main protected elements of the building (in addition to the size, roof inclination, colour of the facade, windows, etc.). In the end it was allowed to do it because the facade elements were so damaged that they rather made a replica of all elements and integrated them on the new facade. All the other elements of protection were respected. In the renovation 2 additional apartments were established, in total there are now 6 apartments.

Städtebaulicher Kontext

The building is part of a small town Tolmin, close to the park and town centre. Due to the size there is no public transport, but all services are within walking distance.

Erhaltungszustand

Erhaltungszustand der Gebäudehülle

The outside of the building was still in its original state. This was the only villa from the time after the first world war that hasn't been changed up to now. The only reconstruction was done inside to adjust it for the needs of appartments.

DENKMALWERT

ERHALTENSWERTE ELEMENTE

The bulding is listed in the national cultural heritage register. The heritage office highlighted the importance to keep the dimensions of the construction and the roof while maintaining the facade with ornaments. The investor had to respect the window openings and frames as well as the doors. The demand was also to keep the balconies with iron fences and a stone staircase at the entrance.

Denkmalwert und wie er bestimmt wurde

The house was built after the 1st world war as notary's villa in the former periphery of Tolmin where richer buildings were located by the park of the town. It is the only one that preserved completed external image (characteristics of secession) and is listed in the Register of slovene cultural heritage. The protection of the cultural heritage is to preserve the design, materials, production, placement in the environment and area of influence. The first idea was to allow only inner insulation of the walls but after discussing possibilities the autohorities allowed also insulation from the outside. This meant removal of ornaments from the facade and replacement with full replicas after the insulation layer. This compromise was necessary to optimise the inner space in the best possible way.

Ziel der Sanierung

Renovation

The building was used for apartments already before the earthquakes. Due to the damage it was evaluated and there was a decision for a full refurbishment including statical improvement and energy efficiency. With the renovation the building gained additional rooms.

Gab es eine Änderung der Nutzung?

The house was first used for services, the municipality decided to use it for social housing after the renovation.

Was the intervention planned following a step-by-step approach?

The building was part of the earthquake refurbishment process that followed the necessary steps, later it was upgraded also with municipal needs. The basic funding was dedicated to statical improvement of the construction, everything else had to be financed by the investor.

Gewonnen Erkenntnisse / besondere Erfahrungen

Cultural heritage first only allowed refurbishment of the original facade with ornaments and pointed out internal insulation as the only possible way. After a detailed analysis of the walls, ornaments and other important elements, they acknowledged that it is in a very bad condition and refurbishment would not be possible. In addition they decided to allow minimum outer insulation with full replica of the original facade including ornaments.

Beteiligte Akteure

Öffentliche Hand
Municipality of Tolmin
Ulica padlih borcev 2, 5220 Tolmin

Architekt
Teja Savelli, Projekt d.d.
Kidričeva 9a, 5000 Nova Gorica

Berater Denkmalpflege
National Institute for the Protection of Cultural Heritage in Slovenia
Delpinova ulica 16, 5000 Nova Gorica

Energieberater
Branko Hrast s.p.
Na Petelincu 4, 5220 Tolmin

Statiker
National technical agency for renovation after earthquakes
Gregorčičeva ulica 10a, 5220 Tolmin

Eingesetzte Software/Berechnungstools

Folgte die Sanierung einer spezifischen Methode? Renovation after the eartquake.

Energiebilanz - mandatory energy audit was performed.
Hygrothermische Bewertung - no.
Life Cycle Analysis (LCA) - no.
Anderes - no.

SANIERUNGS-LÖSUNGEN

Außenwände

brick, stone, concrete wall

The protected facade elements had to be replaced in order to insulate the walls and maintain the visual identity of the building. Replicas of the elements were made under the supervision of the heritage office.

U-Wert (vor Sanierung) [W/m2K]: 0,86 W/m²K U-Wert (nach Sanierung) [W/m2K]: 0,23 W/m²K

Mehr Details

Aufbau Bestandswand

Plaster :

Brick :
480 mm

Plaster :

Aufbau sanierte Wand

Plaster - Baumit Edelputy spezial:
10mm

Plaster - Baumit Haftmoertel:
10 mm

Insulation - Ursa SF 32:
100 mm

Render :
480 mm

Plaster :
15 mm

Fenster

Wooden windows

The windows had to be replaced. As they are an important visual element of the protected facade, they were made by a carpenter under the supervision of the heritage office.

Bestandsfenster U-Wert Glas [W/m2K]: 2,4 Neues Fenster U-Wert Glas [W/m2K]: 1,1 Bestandsfenster U-Wert Rahmen [W/m2K]: 2,0 Neues Fenster U-Wert Rahmen [W/m2K]: 1,5

Mehr Details

Fenstertyp Bestand	Box-type window
Verglasungsart Bestand	Single
Verschattung Bestand	Outer shutter

Neuer Fenstertyp	Casement window
Verglasungsart des neuen Fensters	Double
Verschattung des neuen Fensters	Outer shutter

Weitere Maßnahmen

DACH

ERDGESCHOSS

DACH

There was a demand by the heritage office to keep the same inclination of the roof and also roof covering should follow local traditions.

U-Wert (vor Sanierung) [W/m2K] 1.5 U-Wert (nach Sanierung) [W/m2K] 0.15

Mehr Details

Aufbau Bestandsdach

Tiles :
110 mm

Other :
0 mm

Aufbau saniertes Dach

Tiles :
110 mm

Other - battens:
70 mm

Other - foil:
1 mm

Other - wooden layer:
21 mm

Other - insulation ursa sf 32:
200 mm

Other - drywall:
10 mm

ERDGESCHOSS

Mehr Details

Aufbau Boden/Kellerdecke im Bestand

Aufbau Boden/Kellerdecke nach Sanierung

Other - cement finish:
70 mm

Insulation - XPS:
100 mm

Other - AB concrete:
180 mm

Damp Proof Membrane :
1 mm

Other - concrete base:
100 mm

HVAC

HEIZUNG

BRAUCHWARMWASSER

HEIZUNG

Centralised biomass (pellets) instead of individual heating systems.

Mehr Details

	Heizungssystem nach Sanierung	zusätzliches Heizungssystem nach Sanierung
Art der Heizung	Boiler	NA
Brennstoff	Biomass	-
Wärmeverteilung	Radiators
Nennleistung	48 kW kW	- kW

BRAUCHWARMWASSER

Heat pump.

Mehr Details

	Brauchwarmwasserbereitung nach Sanierung
Typ	air - water
Brauchwasserspeicher
Wärmerückgewinnung aus Brauchwasser

ERNEUERBARE ENERGIE

Biomasse

The boiler is using pellets provided by a local company.

The whole system is installed in a way that doesn't affect the visual identity of the building.

Mehr Details

	Biomass System
Type
Storage size
Origin of biomass
Overall yearly production	kWh

Energieeffizienz

Energieausweis Energy audit
Freiwillige Zertifikate Nein

Energievrabrauch

Heizung
Primärenergie 31 kWh/m2.y
Energieverbrauch nach Sanierung 28 kWh/m2.y

Primärenergie
Berechnungsmethode Steady state simulation (e.g. EPC, PHPP)
Energieverbrauch nach Sanierung 31 kWh/m2.y

Gemessene Parameter

Nurzerverhalten
Type_of_monitoring: Continuous
Description: Energy audit.

Kosten

Finanzielle Aspekte

The building was damaged in the eartquake and included in the national programme of refurbishment that was managed by the technical office. The planned intervention was based on statical improvement of the construction. The owner Municipality of Tolmin later decided to also insulate the building, improve living conditions and invest in a new heating system. The overall budget is therefore a combination of national and local public funding.

Investitionskosten

Total investment costs
550.000 EUR (total)

Betriebskosten

Lifecycle cost
Nein