Page 115 - AIT0322_E-Paper

A dding another level to a residential- and commercial building from the 1980s whose design
quality was not obvious made not only the preservation but also the upgrading of the exi-
sting construction possible. Besides the major extension of living space, the choice of material for
the addition is also characterized by sustainability. Solid wood on walls and ceilings, mineral-wool
insulation and stainless-steel cladding characterize a material concept with renewable raw mate-
rials, comparatively low manufacturing energy consumption and easy deconstruction. Towards
the street, the added roof structure with its standing-seam cladding integrates into the row of hou-
ses, whereas the courtyard side towards the south floats above the existing building. The clients
were not looking for a classic extension with the goal of merely increasing the living area but also
wanted to expand their own living space in a central inner-city location. The need for spacious out- Lageplan • Site view
side areas with views in all directions was also an important request by the clients. This issue of
a roofscape is particularly well expressed in the slightly staggered balconies and terraces curving
inwards and outwards. The soft cool look of the metal façade which, due to its matte surface, pre-
vents any unwanted reflection, is in contrast to the warm shades of the interior. In addition to the
atmospheric design concept, however, flexible living conditions for a shrinking nuclear family were
also to be produced for the future.
Flexible space – various residential models

The complex geometries and interlacing of the exterior and the interior space required an intense
three-dimensional focus on light, room and construction. In the process, the design concept also
meets the demands of offering each of the up to five separate residential units its own private out- Grundriss 4. Obergeschoss • Floor plan level +4
door space. Towards the south, the courtyard, the lighting and the opening of the space towards the
outside was thus produced with a dynamic line of windows. Towards the north, the added storey
was to calmly fit into the rows of existing buildings from the 1980s. To reconcile all these spatial and
aesthetic requirements with an existing building used as flats, for business and offices was also a
technical challenge since the static reserves of the building stock were not designed for an extension.

Weight minimization with a wood construction

The decision in favour of a solid wood construction was therefore made at a very early stage. This,
in turn, caused major problems regarding fire- and noise protection. Acoustic decoupling between
th
the areas on the 5 and the 4 upper level improve the otherwise so hard to achieve sound protec-
th
tion in entire wood constructions. Thanks to insulation thicknesses of 20 and 22 centimetres in the Grundriss 5. Obergeschoss • Floor plan level +5
façade and in the roof, triple-glazing in all the windows and a ventilation concept with heat reco-
very in all the bedrooms, an extremely good energy standard is ensured. The good insulation stan-
dard and wall- and underfloor heating with district heat results in low maintenance costs despite
partly high ceilings in the rooms. Economically profitable, however, was above all the entire con-
struction since the added storey in the inner city of Munich has a living space of about 570 square
metres; after deduction of the demolished areas of the former stacked storey, this results in a high-
quality extension of the living space of 350 square metres in the heart of Munich.
Convergence and contrast – making the interior harmonious

An element which starts as a sideboard at the concrete-grey firewall, continues with drawers in the Grundriss 6. Obergeschoss • Floor plan level +6
bottom in the direction of the terrace and ends as a bench with an inclined backrest in the worktop
towards the window and the view. The almost 20 metres long installation element is covered with
grey-blue Jurassic limestone with marbling that reflects the colour spectrum of the limed oak and
the untreated spruce ceiling as well as the grey shades of the concrete. The fireplace and the gallery
on the opposite side are panelled with gypsum fibreboards for reasons of fire protection, then smoot-
hed and painted in toned-down white. The same shade is also found in the shelf unit below it, the
wall of the built-in kitchen and the large sliding element between the kitchen and the hall that is
constructed of white-varnished birch veneer. Whereas the sliding elements of the shelving system
are covered with cream-coloured felt for reasons of sound technology, the hot-rolled steel of the kit-
chen-island worktop shows the range of grey of concrete and travertine. The steel parts of the bani-
ster and the internal glazing which are made of raw black steel are a somewhat darker contrast and
are continued in the adjacent gypsum-fibreboard wall that is painted with blackboard paint. In this
way, all the materials used result in a colour range of black via grey and beige all the way to the an-
tique white of the drywalls. This spectrum is mainly characterized by the appearance which is spe-
cific of the different construction materials and thus produces flowing colour- and material transiti-
ons with softness and naturalness. An interior is thus designed which is perceived as a kind of flo-
wing sculpture – a sculpture containing all the functions and creating an attractive merging of interior
and exterior spaces. A consistent and yet dynamic space whose organic form belies the rational grid. Schnitt • Section

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