NRJA

10.02.2012

THE WINNING PROPOSAL FOR LOW-ENERGY OFFICE BUILDING IN

RIGA, MATROZU STREET

The building is planned as a low-energy office building with the specific heat level - 15 kWh/m2 per year, and primary energy provision - 102 kWh/m2 per year.

The building is planned as an office building including reception, a café, and conference rooms on the 1st floor, open plan office space on upper levels and a basement for car park and technical areas.

Covered atrium accommodates the extra daylight and natural ventilation option. On the 1st floor level in atrium green plants are planned, to produce oxygen and neutralize CO2, improving air quality and microclimate inside.

Constructive scheme
The building is planned as a six floor reinforced concrete frame structure with a basement floor partially lowered into the ground. The building floors are shifted / rotated relatively to one another, maintaining the central axis, creating small terraces in each floor.

Reinforced concrete columns support the building in the central part. Perimeter of the building consists of Keraterm bearing block walls, which are based on an existing slab below. Rigidity of the building provides 2 concrete stairwells.

Outdoor terraces are planned on each floor for recreation and additional office space illumination.
On the roof is planned a viewing terrace and space for technical equipment solar panels on the South side (for water heating), and rainwater collector for technical purposes and plant watering.