| project profile data | 
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Area:  | Roof: ca. 36,600 sq. ft. (3,400 m²) Courtyard: ca. 9,150 sq. ft. (850 m²)  | 
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Construction Year:  | 2004/2006  | 
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Architect/Design:  | Roof area: IFBA GmbH, Cologne Courtyard: S.I.C. Ingenieur Consult GmbH, Cologne  | 
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Contractor:  | Roof area: Balan GmbH, Datteln Courtyard: Gartenhof Küsters, Neuss  | 
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System Build-up:  | “Ornamental Sedum“  and “Perennial Garden”  | 
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