- architect Viljo Rewell
- real estate owner Auratum Kiinteistöt Oy
- buiding works completed in 1964
- original facade cladding was made of precast concrete panels with travertine surface
- original facade in very bad condition due to deterioration of the original structures
- facade renovation was carried out during 2007-2008
- original precast panels were replaced by solid travertine panels
- project management and supervision: Stonecon Oy
- architect: Schauman Arkkitehdit Oy
- stone technology consulting/main designer: Stonecon Oy/Pekka Mesimäki
- structural engineering: Narmaplan Oy
- stone contractor: Loimaan Kivi Oy/Marriotti s.p.a.
- building is classified as an important object of the Finnish cultural heritage
- due to the central and important location no changes in appearance were desired
- owner wanted to replace the facade cladding with original Roman Classico Travertine
- strict quality requirements were applied for stone material and cut-to-size panels (ref: Ara Pacis)
- cladding made of large solid travertine panels was technically very demanding
- stone panels were supported from horizontal joints and lateral anchors were placed in vertical joints
- thermal insulation was improved and metal details were renewed
- during renovation works the building was normally in use
- area of facade cladding was 2000 m2