1. office founded in 1991 m-g-h stands for: New Directions in Building Construction as well as in Research & Development Object Planning, General Planning, Project Development, Project Management System Development for pre-cast concrete elements Planning under strictly economic aspects Interdisciplinary collaboration in a team of engineers, architects and construction technicians Holistic approaches in international cooperations m-g-h engineers + architects gmbh

2. Fritz Hohnerlein *1955 in Lauda/Germany 1976-82 work in Ghana/Westafrica Study of architecture and city planning in Karlsruhe/Germany until 1991 1989 one-year Fulbright-scholarship at the University of Oregon/USA, Assistant CAD-systems Architectural office m-g-h since 1991 Managing Director of m-g-h 2005-2009 member of the executive board of the International Alliance of Interoperability (buildingsmart.de) main fields of expertise: international projects and pre- fabrication

3. Andreas Herdle *1966 in Bretten/Germany Professional education: State Certified Building Technician Since 1997 Work at m-g-h engineers + architects main field of expertise: CAADD (Computer Aided Architectural Drawing and Design) Pre-fabrication in concrete Cost estimation m-g-h engineers + architects gmbh

4. why prefabrication with concrete ? joints = wages joints = air leakage joints = source of defect Woodenframe - many joints - shrinkage of wood Precast concrete - minimized joints - minimized shrinkage Brickwork - many joints - inaccuracy due to amount of joints

5. typology versus variety Residential Areas Apartment Houses Residential Houses Building with prefab concrete

6. Domestic Buildings different house- typologies

7. Domestic Buildings different facade- systems

8. Domestic Buildings Details

9. Domestic Buildings variation as office

10. iRoof iRoof-Project Oberhausen- Rheinhausen Function of iRoof Research & Development

11. iRoof testmodel iRoof with solar membrane and absorber pipes Research & Development

12. iRoof reinforcement and absorber pipes Research & Development

13. iRoof iRoof with membrane in transport-box Research & Development

14. iRoof iRoof PV Part in transport-box Research & Development

15. south-east view (garden) iRoof Research & Development

16. iRoof north-east view Research & Development

17. Photovoltaics Solarthermal energetic wastewater wastewater for use with heatpump Geo-thermal Solar Cooling Adsorption cooling Desiccant cooling Trough collectors IFC Industry foundation classes BuildingSmart Insulation systems new materials etc. iRoof concrete massive absorber heat pump through massive bsorber 3D-Moduls prefab concrete integrated building services eng. air tightness (EnEV) through prefabrication etc. Photo catalytics interior plaster or paint fuel cell shading systems Intelligent glasses intelligent planning Urban Technologies