Wohnen für Botschaftsbedi...x
Wohnen für Botschaftsbedienstete
Residential Project – Indian Embassy
Orientation and Integration
The site of the planned building is located in the „better part“ of Berlin-Charlottenburg in Stormstrasse with an East-West-Orientation.
On the West side is the Stormstraße with the entrance for pedestrians, cars and the trucks of the fire department. On the East side is a lush garden.
Two different design concepts had to be developed, one solitary and one closed block building.
The Solitary Building ...
... is in line with the neighboring building as requested by the City Planing Department. However, two bay windows stick out of the building line and two corner windows with no frame at the corner allow an extended view into the surrounding location.
The entrance to the building is on the North side and is covered by an entrance roof protecting the entrance against heavy rain. A traditional Indian ornament separates the private garden from the public. A ramp provides access to the parking garage. From the basement up to the apartments each resident has to pass the smoke corridor and has the choice of walking either by the stairs or taking the elevator.
The staircase is illuminated by day light. Lobby and Recreation Room are located next to the stair case. Laundry room and fitness room are open to all residents. A rear exit leads to the garden and to the terrace.
Apartments are devided into a public and a private zone. In the core of each apartment one can find the bath rooms. To make sure that the requested apartment sizes are met, we had to design split level apartments within level 4 and Level 5. All apartments have either a balcony, a terrace or access to the garden. The roof top is protected by a green roof to improve the micro climate. Different color choices differentiate the facade according to the massing.
The Closed Block Building ...
... leaves more space for the garden and requires the neighboring buildings to join the closed block building. With this concept no fire department acces to the garden is required, because the rescue path can be taken only from the street, as long as no apartment is located in the garden zone.
The entrance to the building is on the Street side and is covered by an oriel protecting the entrance against heavy rain as well. A traditional Indian ornament welcomes every visitor at the entrance. The access to the garage goes through the building. A ramp provides access for cars and bicycles driving into the basement.
Connections between the basement, apartments, the fitness, the recreation room or to the garden are organized in a similar way as in the solitary building.
These apartments are separated into a public and into a private zone as well. The principals of these apartments are comparable to those of the solitary building.
The building will be built in a massive sustainable manner fulfilling high demands in energy saving. Slabs and columns will be errected in reinforced concrete, walls in high efficiency energy saving elements. Sound and thermic mineral insulation will meet highest standards. The choice of the visible surfaces shall be in the hands of the client if requested. Otherwise the material shall represend the wealthy heritage of it’s inhabitants.
Energy Strategy building services
Thermal Heat an power generation
The thermal heat should be generated mainly by a combined heat and power unit (CHP). The CHP is cost-effective if it operates for a long time during the year.
That’s why the CHP should be used for the basic load.
There are two possibilities. The landlord can sell the generated electrial energy to the tentants or he can feed it into the public grid.
From an ecological view the CHP is an energysaving, cost-effective and environmentally friendly method to generate energy.
The favor for the peak load is a condensing gas boiler. The purchase is reasonable and it is very effective for the low temperatures in a floor heating system.
After a phone inquiry the Energy provider told us, that the gas line is situated in the Stormstrasse 10 in 14050 Berlin.
For more efficiency during the summertime it would be recommended to combine the CHP with solar heat for the water heating.
If you use this combination the actual requirements are complied.
An other choice is to use a geothermal heating.
All flats are heated by a floor heating system. Every flat has separate temperature control temperature control is situated in every flat. There is a room thermostat in every room.
In addition to the floor heating there is a towel dryer radiator in every bathroom. This is necessary because more energy is needed in order to achieve higher room temperature in the bathrooms. The floor heating wouldn`t be enough.
To get an affordable system the piping is made of different materials. The larger parts are made from black welded steelpipes. Smaller Pipes are precision steel tubes with pressfittings.
Polyethylene pipe will be used for the floor heating system. PE pipes will have barricades against oxygen diffusion. That’s why it will not be necessary to use a seperation between the systems.
There are differential pressure control valves for the hydraulic tuning in the pipe system. Together with the high effective low energy pumps this guarantees an energy-saving and demand-based operation.
Mineral fiber insulation around all pipes (Energie Saving Ordinance) prevents heat loss. In visible areas (Basement) the insulation will be armed with a light grey plastic film.
Wireless heat meters will be installed in each flat. Since meters have to be changed every five years, we siggest renting them.
The supply with domestic water is realized by Berliner Wasserbetriebe (water company).
To get an affordable system the piping is made of different materials. For instance there are stainless steel tubes with pressfittings in the basement and the shafts.
Mineral fiber insulation around all pipes (Energie Saving Ordinance) prevents heat loss. Pipes for cold water will be enclosed with a special insulation angainst condensation and temperature rise.
In visible areas (Basement) the insulation will be reinforced with a light grey plastic film, and in the heating room with tin.
There will be one storage water heater for the whole building. The CHP and the condensing gas boiler will generate the energy for this system.
Every flat will have wireless water meter for warm and for cold water.
It is necessary to change the meters every five years (warm water) and every six years (cold water).
The waste water is with natural slope pipes connected to the public net.
Ventilation and air-conditioning
There will be a ventilation unit with a recuperator (efficiency 75-85%) in every flat.
The ventilation unit will be regulated by a timer. With the light switch in the bathroom it turns to higher air change.
Air supply will be led in the sleeping- and the living rooms. Exhaust air will lead out of bathrooms and kitchens.
The airspeed in the duct should be between 4 – 6 m/s.Electrical engineering
The maindistribution is positioned in basement, with electrical meters for each flat.
The flats will be compleatly installed with sockets and lighting. There will also be a telecomunication connection and internet. Every room will have a cat 7 data socket.
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Absatz 3 MDStV:
Dipl.-Ing. Hans-Gerhard Kauschke © 1998-2013
AKP Architekten Kauschke + Partner
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