At
first glance it is hard to tell that the idyllic building – with its
exterior lime plaster finish and interior clay rendering – incorporates
straw as its basic material. Simply the surface texture of the outside
stands out in contrast to the immaculately machined wood elements of the
roof and façade, lending the building a touch of natural charm.
According to the architects the whole wall structure is compostable.
While walls in this form and of a comparable thickness would be barely
conceivable in inner city areas, here they not only create a cosy
atmosphere through incorporation of niches but also fulfil necessary
insulation requirements. The wooden roof structure is also insulated
with straw.
This particular choice of material offers the additional advantages of being rapidly renewable and low in cost, and moreover does not require treating. The upward-angled canopy roof shelters and frames terrace areas that are to provide shade in summer and enable ample solar radiation in winter. Indoors a screed floor conjoined with the floor slab serves as a natural heat reservoir, whereby a simple tiled stove acts as the sole source of heating.
This particular choice of material offers the additional advantages of being rapidly renewable and low in cost, and moreover does not require treating. The upward-angled canopy roof shelters and frames terrace areas that are to provide shade in summer and enable ample solar radiation in winter. Indoors a screed floor conjoined with the floor slab serves as a natural heat reservoir, whereby a simple tiled stove acts as the sole source of heating.
The
interior of the house is characterised by an open room concept, with
the ground plan featuring four wooden cubes and room-high sliding
elements for a flexible and individual division of space. The
1.20-metre-thick outer walls made of stacked straw bales not only form
the facade of the single-storey building without any need for a wooden
structure but in the area of the wall openings enable cosy niches for
passing the time and relaxing.
Harmoniously
matched building materials create a consistent look both indoors and
out. The overall height of the roof and its shape were chosen to ensure
ideal exposure to light and heat according to the time of year.
Moreover, the deep reveal of the roof forms a pleasant design
counterpart to the "naturally formed" straw walls. Although the core
material – straw – is not visible as such, it pervades the atmosphere of
the house and is not only inexpensive but also sustainable.
Project data
Structural engineer: Eric Leitner, Schröcken, Austria
Construction: 2013/2014
Project data
Structural engineer: Eric Leitner, Schröcken, Austria
Construction: 2013/2014