Igaunijas pieredze mājokļu renovācijā. Rotācijas fonds
-
Upload
ministry-of-economics -
Category
Technology
-
view
187 -
download
2
Transcript of Igaunijas pieredze mājokļu renovācijā. Rotācijas fonds
3/14/2012
1
experience from Estonia in renovation of multi‐story buildingsy g
Roode LiiasProfessor
Tallinn University of TechnologyESTONIA
to start with...
• any system for flat ownership is designed to tackle the same basic problems – organisation of repairs and maintenance is perhaps the most important of these
• perfectly maintained and in good repair building advertises about good coorporation amongst the co‐
?owners...?• Estonia is the state of home‐owners
– 96% of housing stock has been privatised– ca 2/3 of stock is in blocks of different type
2
• but do not believe this...– nice/perfect technical quality is not always the functional quality
– the quality we see on the facades is not the q yquality we feel when we are inside this builtenvironment
• complete renovation of the buildings• healthy indoor climate• energy efficiency• better living environment
3
3/14/2012
2
• historically...– buildings in bad condition were privatised
– owners were given the right to decide
– decision maker = owner = user – the same person
– are there conflicts of interests and possibilities
4
4
• we help you to put your house in good repair– about 10 years different schemes for renovation havebeen used in Estonia
• survey done in 2011su ey do e 0– slightly more than in ¼ of the blocks have carried outenergy audit of the building
– the most popular renovation works so far have been• change of entrance doors and windows in stairways – 73%
• changing or improving the roofing – 60%
5
renovation loan– for multiflat houses built before 1993– energysaving target:
• building less than 2000m2 – at least 20%• buildingmore than 2000m2 – at least 30%• ...proved by energy‐auditing
– 80% of flat‐owners must be individuals– loan until 20 years
• fixed interest rate ca 4.4% for 10 years
– share of own finance 15% – loan channeled through commercial banks
• from ERDF 17 mil € during 2008‐2013
6
3/14/2012
3
geographical distribution of renovation projects
64%
5%
13%
buildings datingfrom...
some statistics:in 2.5 years totally 390 buildingsin 2011 loans for 170 buildings
1970ies
1980ies
1990ies
5%
5%0% 10% 20% 30%
< 1940
1940ies
1950ies
1960ies
80 € +
110 € +
140 € +
loan burden in € per m2
8
0% 10% 20% 30% 40%
less than 50 €
50 € +
80 € +
types of works(share from projects)
insulating facades 80%
renovating roofing 48%
heating system 51%
changing windows 32%
changing entrance doors 15%30%
no of types of works perproject
c a g g e t a ce doo s 5%
insulating roof 19%
improvement of ventilation 24%
renovation of public spaces 11%
insulating ceiling of cellar 9%
9
0%
5%
10%
15%
20%
25%
1 2 3 4 5 6 7
3/14/2012
4
obligations of the home‐owners to get the loan– carry out energy‐audit
• certified professional• recommendation for works
cost estimate of works– cost estimate of works• three tenders from registered contractors
– three‐years energy‐consumption dataafter the works
• annual reporting of energyconsumption• financial auditing• publicly advertise the loan
problems??
• household’s behaviour is difficult to measureand they are not always fully rational whenthey are making financial decisions
• ... they decide collectively to damageeachanother the best way...– decisions taken as to renovation are done based on current/today’s investment possibilities, rather thanon (longterm) sustainability
• cheap works can not be considered as reasonable ones– basic decison‐making criteria: our house should look better (be nicer) as...
– no any feasiblity considerations can be found in thecalculations
• projects funded by Estonian Government through KredEx to survey Estonian multiapartment buildings (since 2006)– prefab concrete buildings – finished by today– prefab concrete buildings – finished by today– brick buildings – finished by today– timber buildings – finished by today– ‘new’ buildings – running today
• condition survey and lifetime forecast• each was scheduled for at least 18 months
12
3/14/2012
5
• surveys carried out– structural stability
• energy saving/class– insulation measures– heating systems– doors/windows
fi– roofing• indoor climate
– temperature– ventilation– CO2 percentage– humidity level– ....
13
basic faults– structural problems of brick buildings
– built in thermal bridges of structures
low quality of reconstruction works– low quality of reconstruction works
– not adequate indoor climate• high level of CO2
• over‐heating
14
• are you happy now?
3/14/2012
6
grant to support (until 90%)...– for preparing design documents
– when carrying out supervision of works
conclusions
• to be successful...– legal framework
fi i l h l d– financial support schemes – loans and grants
– network of professional advisors
– awareness raising
17
thank you for your time!
Roode Liias