ENERGY EFFICIENCY IN BUILDINGS Chamber of Foreign Trade ( AHK) in cooperation with German-Danish Chamber of Commerce September 26th - 28th 2011 Copenhagen / Denmark 1
Contents Area of Business B&O Model Project: Modernization Model Project: Addition of Storeys Model Project: New Constructions Range of Service Realization (Model Project) B & O Group of Companies 2
B & O Range of Services for the Housing Industry Energetic modernization of residential buildings building shell building technology apartments Construction of buildings on low energy level Refurbishment of vacant accomodations package pricing unit price basis Unplanned maintenance via service company flat-rate per m² unit prices 3
Energetic Modernization Existing Structure Building contractor: WOGE Kiel Location: Kiel Built in 1957 Number of apartments: 28 Energy: appr. 137KWH/m²year Partly inhabited 4
Energetic Modernization Key Figures Architekt Bock, Schulz & Partner Kiel Necessary steps: building shell apartments building technology roof - additional General Contractor coordination of 26 specialized partnercompanies support of tenants / partly inhabited time of construction: August 2009 June 2010 5
Energetic Modernization Measurements Building technology district heating heating, sanitary, electric - new central ventilation Facade 14 cm insulation 035 U= 0,22 W/m2K Windows Uw 1,1 W/m2K Roof new, insulation 20 cm 035 U= 0,19 W/m2K Elevator new Final energy 68 KWH/m²year Energy saving: appr. 50% 6
Energetic Modernization Apartments 7
Refurbishment / Addition of storeys Existing Structure Building contractor: BDS Hamburg Location: Hamburg Built in 1961 Apartments: 33 Living area: 1.630m² Energy: appr. 196KWH/m²year District heating Partly inhabited 8
Refurbishment / Addition of storeys Key Figures Measurements modernization of stock addition of storeys / 7 aps. General contractor Coordin. of appr. 30 subcontr. support of tenants construction time: 6/11-5/12 Designet by architect a.ps Hamburg 9
Refurbishment / Addition of storeys partly inhabited during modernization 26 apartments 1.630 m² Building technology new Heating, sanitary, electric Central ventilation new heat recovery 80% Facade 14 cm insulation035 U= 0,18 W/m²K Windows Uw 1,1 W/m2K Elevator new Foundation Final energy 46 KWH/m²year Energy saving: appr. 75% 10
Refurbishment / Addition of storeys Addition of storeys for low energy standard 7 apartments 456 m² Building technology, compl. Thermal collectors 40m² Ventilation, new, central heat recovery 80% Wood frame walls 24cm cellulose 040 U= 0,18W/m2K Windows Uw 0,9 W/m2K Roof 24cm cellulose 0,40 U= 0,18W/m2K Energy 32KWH/m²year 11
New Building EnEV-City of B&O 4-storey massiv wood-construction 12
New Building EnEV-City of B&O Key Figures Apartments 60m²-120m² Construction completely in wood Building technology local heating network flat transfer station hot water ventilation, heat recovery 80% Energy 25 KWH/m²year Aufgestellt: Horst Glinka 13
8-Storey-Building in Wood Flagship-Project Challenging project in wood :fire protection, sound protection 8 storeys Completely in wood with concrete core Building technology local heating network flat transfer station hot water ventilation, heat recovery 80% Energy 18 KWH/m²year 14
B & O Range of Services Knowledge Longterm knowledge in planning and realization of building projects Different projects dealing with highest technical and energetic demands B&O EnEff-city with own research department Cooperation with substantial number of producers Praxis-oriented management of contruction site Management and coordination of companies involved in the project Support service for tenants 15
Conversion of Pilot Project Planning Partnership with Danish architects/engineers Planning-phase with the practical assistance of B & O Analysis of reference-projects in Germany Competition e. g. GMP-modell under open book conditions Regional Danish building companies Implementation Coordination Technical and commercial control Site management with Danish partners Support of tenants with Danish partners 16
B & O Group of Companies Passive housing development in Jena Addition of stories to apartment building Darmstadt High degree of efficiency makes for affordable housing Cityliving XXL in Frankfurt 17