Expansion of the Altötting District Office (administration building) through the replacement measure for connecting buildings (basement to 4th floor) with connections to two existing buildings and construction of an office building (basement to 4th floor);

Gross floor area approx. 5,380 sqm,

Gross volume approx. 21,370 cbm.

1 ventilation unit with rotary heat exchanger 12,500 m³/h,

3 compact ventilation units with rotary heat exchanger 1,500 -3,500 m³/h,

approx. 366 pieces of ceiling diffusers with junction boxes,

approx. 12 pieces of pipe installation grid,

approx. 6 pieces of single-room fans,

approx. 520 m spiral seam pipe DN100 – DN315 with fittings,

approx. 368 flexible pipe silencers DN100 – DN315,

approx. 2000 m² of angular ventilation ducts and fittings,

ca. 100 m²Schwitzwasserisolierung,

approx. 47 pieces of volume flow controller,

approx. 104 fire dampers,

4 pieces of angular mufflers,

4 roof bushings incl. inlet and outlet elbows,

2 pieces of ventilation towers 1.3 m diameter made of stainless steel.