House Engels Houben Rongen Architects
House Engels Houben Rongen Architects
House Engels Houben Rongen Architects
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Passive <strong>House</strong>-Workshop „URBAN VISIONS IN GUANGZHOU“<br />
„ENERGETIC RESTORATION OF EXISTING BUILDINGS<br />
... and their practical realization“<br />
Prof. Dipl.-Ing. Ludwig <strong>Rongen</strong><br />
architect + town planner BDA<br />
University of applied sciences FH Erfurt, Germany<br />
Visiting Professor Sichuan-University, Chengdu, V. R. China<br />
Visiting Professor Southwest Jiaotong University, Chengdu, V. R. China<br />
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Field of research / Special experiences<br />
Energy efficiency in building (new building and restoration)<br />
Realisation of a lot of passive houses, e.g. the first old peoples home in<br />
passive house standard in Europe<br />
Series of publications about passive houses<br />
Series of lectures about passive houses<br />
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Coauthor<br />
“Frick Knöll structural theory”<br />
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Guestprofessorship<br />
Southwest Jiaotong University, Chengdu (China)<br />
Sichuan University, Chengdu (China)<br />
Home<br />
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Membership<br />
Chamber of <strong>Architects</strong>, North Rhine-Westphalia<br />
Chamber of <strong>Architects</strong>, Thuringia<br />
German Confederation of <strong>Architects</strong> (BDA)<br />
Community of information of passive houses<br />
Steering communitee cluster “Energy efficiency and solar construction”<br />
Science forum “Energy efficiency in building”<br />
Executive “German – Chinese competencecenter building”<br />
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WORKSHOP 2007<br />
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RESIDENTIAL COMPLEX<br />
Reconstruction and alteration of a former garage from 1960 into a<br />
residential complex in passive house standard<br />
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GRAPHICAL MODEL<br />
raised roof as timber construction in passive house standard<br />
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BEFORE<br />
AFTERWARDS<br />
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BEFORE<br />
AFTERWARDS<br />
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BEFORE<br />
AFTERWARDS<br />
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longitudinal section<br />
raised roof as a timber construction in passive house standard<br />
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ICHNOGRAPHY RAISED ROOF<br />
flat 01<br />
flat 02<br />
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DETAIL OF THE RAISED ROOF<br />
U- value roof = 0,100<br />
W/m²K<br />
U-Value exterior wall = 0,088 W/m²K<br />
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thermal insulation the full complement of the rafters<br />
BUILDING SITE<br />
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Energy consumption before alteration: 141,03 kWh/m²a<br />
Energy consumption after alteration : 13,10 kWh/m²a<br />
Energy saving 90,7% !<br />
and....increase of comfort!<br />
better lightness<br />
better hygiene<br />
Less movement of the air in the rooms<br />
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afterwards<br />
before<br />
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THE BUILDING PROJECT UNDER CONSTRUCTION<br />
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CARITAS-HOUSE NEUWERK<br />
First old peoples home (80 residents) in passive house standard in Europe<br />
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CARITAS-HOUSE NEUWERK – facades<br />
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HOUSING TECHNOLIGY<br />
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BUILDING SITE<br />
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HEAT LOST<br />
EARNING HEAT<br />
HEAT REQUIREMENT<br />
YES!<br />
31,3<br />
26,0<br />
5,4<br />
kWh/m²a<br />
kWh/m²a<br />
kWh/m²a<br />
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DINING HALL<br />
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INTERIOR IMRPESSIONS<br />
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DETAILS<br />
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CARITAS-HOUSE NEUWERK by dawn and night<br />
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MEDICAL CENTRE, MÖNCHENGLADBACH; GERMANY<br />
Alteration of a former residential home for female nursing students<br />
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efore alteration<br />
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The overhanging balconies had been<br />
great thermal bridges up to know<br />
The overhanging balconies will be<br />
integrated into the heated structural shell<br />
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upper floor (medical practice)<br />
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A SINGLE FAMILY HOUSE FROM 1961<br />
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DETAIL OF THE CONTINUOUS ATTIC<br />
BEFORE ALTERATION<br />
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DETAIL OF THE CONTINUOUS ATTIC<br />
AFTER ALTERATION<br />
ADDITIVELY THERMAL INSULATION<br />
OF THE EXTERIOR WALLS AND THE ROOF<br />
EXTERIOR WALLS FACED WITH NARROW<br />
GALZED LARCH TIMBER PANELS<br />
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energy consumption before alteration<br />
255,00 kWh/m²a<br />
energy consumption after alteration<br />
82,51 kWh/m²a<br />
saving in energy consumption 67,6% !<br />
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PASSIVEHOUSE-EXAMPLE – Varieties of design<br />
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PASSIVEHOUSE-EXAMPLE – Varieties of design<br />
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INTERIOR IMPRESSIONS<br />
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PASSIVEHOUSE-EXAMPLE – Varieties of design<br />
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PASSIVEHOUSE-EXAMPLE – Varieties of design<br />
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economy<br />
by the example of the Caritas <strong>House</strong> Neuwerk (see above)<br />
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calculation of profitability<br />
in comparison with a German standard house („low energy house“)<br />
additional costs in comparison with a „low energy house“<br />
about 229.000 €<br />
government grant 128.000 €<br />
grant aided bank credit by KfW-bank<br />
The building owner could have got a grant credit of 4.000.000 €, but he did not need it<br />
8.420 € annually (present value in Nov. 2001)<br />
47.000 €<br />
annually capital costs for bank credit (interest + paying off mortgage) 2.580 €/a<br />
annually saving costs of heating energy in comparison by a „low energy<br />
house“<br />
ca. 11.000 €/a<br />
From the beginning the saving costs of the Caritas <strong>House</strong> Neuwerk in comparison with a<br />
„low energy house“ amounts to<br />
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In this calculation has been left out of consideration:<br />
Saving in energy consumption because of the very good blower door test (air tightness)<br />
(n 50 -value = 0,4 h -1 )<br />
Increase of energy costs between Nov. 2001 and Jan. 2008<br />
originally calculated saving costs: 8.420 € annually (present value Nov. 2001)<br />
n 50 = 0,4 h -1 > 11,9 % saving in energy consumption<br />
increase in energy costs between Nov. 2001 and Jan. 2008 > 121 %<br />
ACTUAL SAVING COSTS (present value March 2008):<br />
20.823 € annually<br />
11,9 %<br />
121 %<br />
9.422 € annually<br />
20.823 € annually<br />
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Nov. 2001: calculated saving costs 8.420 € annually<br />
Jan. 2008: real saving costs<br />
20.823 € annually<br />
present value: 02.01.2008<br />
98,9 US $/Barrel<br />
present value: 04.11.2007<br />
92,5 US $/Barrel<br />
present value: 10.08.2006<br />
78 US $/Barrel<br />
present value: 30.07.2005<br />
60 US $/Barrel<br />
Quelle: www.tecson.de TECSON GmbH PRICE DEVELOPMENT OF CRUDE OIL<br />
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<strong>House</strong> Hanssen Höppener<br />
<strong>Rongen</strong> <strong>Architects</strong><br />
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EG OG<br />
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Tag des Passivhauses<br />
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<strong>House</strong> <strong>Engels</strong> <strong>Houben</strong><br />
<strong>Rongen</strong> <strong>Architects</strong><br />
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EG OG<br />
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<strong>House</strong> Dres. Sander<br />
<strong>Rongen</strong> <strong>Architects</strong><br />
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Prof. Dipl.-Ing. Ludwig <strong>Rongen</strong><br />
architect +town planner BDA<br />
University of applied sciences, FH Erfurt, Germany<br />
Visiting Professor Sichuan-University, Chengdu, V. R. China<br />
Visiting Professor Southwest Jiaotong University, Chengdu, V. R. China<br />
THANK YOU FOR YOUR ATTENTION !<br />
Glockengasse 31<br />
99084 Erfurt<br />
Germany<br />
Fon: 004936/5615770<br />
Fax: 004936/5615771<br />
Propsteigasse 2<br />
41849 Wassenberg<br />
Germany<br />
Fon: 00492432/3094<br />
Fax: 0049/2432/4304<br />
RONGEN ARCHITEKTEN<br />
Dr.-Overhues-Allee 40<br />
52355 Düren<br />
Germany<br />
Fon: 0049/242/207461<br />
Fax: 0049/242/62654<br />
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