RENOVATION OF HIGHRISE RESIDENTIAL BUILDINGS IN THE CZECH REPUBLIC

1
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC
www.mmr.cz

• Miroslav Urban
• Ministry for Regional Development of the Czech
  Republic
• Analytical Unit in Housing Policy Department

Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
2
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• History of panel building in the Czech Republic

Number of flats in HRRBs built in CR during 1959
-1990 (source Ministry for Regional Development)

• gt 3 706 00 flats in the Czech Republic
• 2 158 000 flats - in apartment houses
• 1 165 000 flats - in prefabricated buildings

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
3
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• The present state of repair HRRB
• Existing state gt
• age
• particular
• method of use
• attitude of the users

• poor quality
• errors in project documentation
• lifespan of internal fixtures

• Fundamental reasons underlying defects and flaws
  occurring in panel buildings

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
4
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Fundamental reasons underlying defects and flaws
  occurring in panel buildings
• inadequate know-how at the moment of construction
  (underestimated impact of temperature, moisture,
  construction, concrete creeping, climatic
  effects)
• failure to observe process specifications in
  manufacture of prefabricated elements
• failure to observe technical specifications in
  assembly
• defective project documentation
• inadequate level of the planned funds (during
  progressing panel construction the cost per
  dwelling was permanently reduced)
• minimum offer of construction elements (cheap
  products of poor quality)
• insufficient pressure exercised on quality of
  construction proper
• intensive aggressive effects of the environment
  (acid rain, climatic conditions, etc.).

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
5
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Other main defects
• places where individual panels come in contact
• thermal bridges (balcony, windows, roof)
• water condensing (kitchens, bathrooms)
• thermal insulation of the roofs
• windows !

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
6
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Fundamental defects and drawbacks
• defects and drawback that affect safety (strength
  of balconies, anchoring of construction
  elements)
• defects and drawbacks that affect sanitation and
  health protection (mildew, water vapor
  condensation, leaky padding of apertures)
• defects and drawbacks reducing the level of
  energy savings and thermal insulation (thermal
  bridges, insufficient insulation, glazing)
• defects and drawbacks that impair characteristics
  important for the user (leaky roof, panels,
  windows, joints),
• defects and drawbacks adversely affecting
  operating cost (inadequate insulation of heat
  distribution and hot water distributions systems,
  expensive lighting of common premises,
  objectionable state of lifts).

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
7
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Main problems of HRRs
• Building constructions
• Balconies (creates thermal bridges and represents
  a risk of concrete scaling)
• Windows (largest amount of heat escapes though
  these constructions)
• Walls (insulation of external walls expensive,
  but in many cases this measure is inevitable)
• Roofs (redevelopment of the flat roof is
  necessary in the case of damaged damp proofing
  ROOF RECONSTRUCTION)

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
8
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Contemporary requirements imposed on living in a
  panel house can be summarized as follows
• the associated costs must be acceptable
• the internal environment must meet sanitary
  requirements
• the appearance of the residential area must be
  generally acceptable
• technical and sanitary facilities installed in
  the dwellings must conform to contemporary
  requirements.

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
9
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Energy consumption

• Housing expenditures in in 2001 for an average
  household (source Czech statistical Office)

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
10
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Effect of insulation on energy demands of a
  typified panel building

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
11
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Cost of renovation
• Fundamental remedial measures
• thermal insulation of the building envelope
• modification of the heating system and the
  appropriate control system (hydraulics, thermal
  insulation of piping)
• forced ventilation of the object (hybrid
  ventilation, recuperation of heat from the
  outgoing air)
• information provided to users and modification of
  their behavior vis-à-vis the object.

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
12
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Cost of renovation
• Cost for basic, optimum and complex modernization
  / 1 flat
• static and building construction
• technical equipment of common parts of building
• forced ventilation of the object (hybrid
  ventilation, recuperation of heat from the
  outgoing air)
• information provided to users and modification of
  their behavior vis-à-vis the object.

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
13
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Cost of renovation
• see the table 3

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
14
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Energy consumption

Indicative present common energy consumption
levels for heating of flats (per m2 of floor area)
note average number of degree days in the CR is
about 3,68 (for indoor temperature ti 19C)
www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
15
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Current state support and sources financing of
  repairs and renovation

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
16
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Related laws, technical standards
• Act No. 458/2000 Coll., on Business Conditions
  and Public Administration in the Energy Sectors
  and on Amendment to Other Law
• Act No. 406/2000 Coll., on Energy Management
• Decree no. 151 of the Ministry of Industry and
  Trade determining details regarding effectiveness
  of energy application in heat energy distribution
  and its inner distribution.
• Decree no. 152 of the Ministry of Industry and
  Trade determining rules with respect to heating
  and warm water delivery, specific indexes of heat
  consumption for heating and warm water
  preparation, and requirements regarding inner
  heat equipment outfit of buildings with
  instruments enabling heat energy regulation for
  final consumers.
• Decree no. 153 of the Ministry of Industry and
  Trade determining details with respect to
  determination of energy application effectiveness
  during transport, distribution and inner electric
  power distribution.
• Decree no. 212 of the Ministry of Industry and
  Trade determining details concerning preparation
  of the combined electricity generation and heat
  production and their realization.
• Decree no. 214 of the Ministry of Industry and
  Trade fixing the limitation of those energy
  sources, which will be appreciated as renewable
  ones.
• Decree no. 215 of the Ministry of Industry and
  Trade determining details of energy consumers
  designation by means of energy labels and
  elaboration of technical documentation as well as
  minimal energy effectiveness for electrical
  appliances introduced to market.
• Decree of the Ministry of Industry and Trade No.
  213/2001 Coll., on detailed specification of
  energy audit requirements.
• Decree of the Ministry of Industry and Trade No.
  291/2001 Coll., as amended by Decree of the
  Ministry of Industry and Trade No. 425/2004 Coll.
  on detailed specification of the utilization of
  energy efficiency at energy consumption in
  buildings.
• Decree of the Ministry for Regional Development
  No. 372/2001 Coll., laying down rules for
  allocation of heat energy cost for heating and
  cost for hot service water provision among the
  end users
• The Czech State Standard 73 0540 Thermal
  Protection of Buildings

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
17
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Literature
• 1 Sustainable Renovation of High-rise
  Residential Buildings for Central and East
  European Countries the Case of the Czech
  Republic SEVEn o.p.s, The Energy Efficiency
  Centre, 2005
• 2 Financing investments in energy saving in
  paneled houses in The Czech Republic. Draft
  report for the Ministry of VROM, 2004
• 3 State aid programmes in the housing sector,
  catalogue of examples. Ministry for Regional
  Development, Institute for Spatial Development,
  2004
• 4 Information on the Developments in the Field
  of Regeneration of Prefabricated Housing
  Estates. Ministry for Regional Development
• 5 Housing policy concept. Ministry for Regional
  Development, 2005

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005
18
RENOVATION OF HIGH-RISE RESIDENTIAL BUILDINGS IN
THE CZECH REPUBLIC

• Thank you for your attention !
• Miroslav Urban
• Phone [phone]
• Fax [phone]
• Miroslav.Urban_at_mmr.cz
• Analytical Unit in Housing Policy Department
• Ministry for Regional Development of the Czech
  Republic

• http//www.mmr.cz

www.mmr.cz
Energy Saving Measures in High-rise Residential
Buildings and Financial mechanism, Tallinn 2005