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.
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.
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.
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.
To ensure the required thermal standards the following is planned:
ventilated ceramic facade - 70mm
wind insulation - 50mm
insulating layer Paroc UNS37 - 250mm
Keraterm 38 blocks - 380mm
steam / condensation film
insulating layer - 50mm
plasterboard - 13mm
rubberized bitumen roof covering in 2 layers - 10mm
wind shielding - 35mm
insulating layer Paroc ROS - 200mm
insulating layer Paroc ROS - 100mm
reinforced concrete slab - 220mm
suspended ceiling - 50mm
of plasterboard - 26mm
Window area of the
facades is 30% of the
total facade area (3 layers of glass in wooden frame (U value 0.8W / (m2 K)).
The plot area 4170.00 sqm
The planned building intensity 145.5%
The buildings total area 5408.10 sqm
Number of cars in underground parking 18
Estimated number of floors 6
SEE ALSO: JUST GREEN