House is located in the suburban zone of Krakow in Poland. The building is part of a housing estate consisting of 10 single-family houses. The estate is characterized by dense development resulting from high land prices. In order to ensure the privacy of the residents, the house is hidden from access road and northern neighbors behind the roof surface. This explains the name – House behind the Roof.
Due to the dynamic development of the city, more and more natural areas are used for development, therefore ecological designing approach was particularly important. The northern roof of the building is covered with succulents and photovoltaic cells were placed on a well-sunlit southern part. The green roof has a 45-degree slope. It would be easier to design a traditional flat green roof, but local building law did not allow that – the roof had to be sloped. This solution was much more expensive, although the green roof surface significantly exceeded the area occupied by the building. Therefore, it can be said that what has been taken from nature has been given back with interest.
▼鸟瞰图，北面的屋顶覆盖以大量的多肉植物，aerial view: the northern roof of the building is covered with succulents
▼日晒充足的南面屋顶安装以光伏太阳电池，photovoltaic cells were placed on a well-sunlit southern roof
The characteristic element of the building is construction made of laminated timber with diagonally guided elements and undercuts at the edges of the roof. It has been exposed not only outside, it also penetrates to the interior of the building. At the connection of the two roof slopes there are windows letting in significant portion of light. Windows are mounted high above ground floor, when opened a natural ventilation works very efficiently.
▼南北两面屋顶的衔接处开有带状的窗户，at the connection of the two roof slopes there are windows letting in significant portion of light
▼屋顶下的户外空间，outdoor space sheltered by the huge roof
In the Superhelix studio special attention is always paid to how building changes over time, what happens with used materials. The elevation of the building was covered with a Western Red Cedar planks. This wood has not been protected from weather conditions and insects – it simply does not require it, in time it will take on a noble patina and change its color to silver-gray. The green roof also does not need special care. It does not require watering, long-lasting dry periods are not an issue. It is guaranteed by the shady northern exposure and the plants water retention.
▼绿色屋顶能够长时间地抵御干燥环境，the green roof does not need special care, which is guaranteed by the shady northern exposure and the plants water retention
The house has been designed on a rectangular plan, has two floors and 189 square meters. Due to the suburban location of building, where public transport is poorly developed, the ihabitants mainly use car to commute. That is why the garage is placed inside the house, on the ground floor, near to living room and kitchen. Guest room, toilet and utility rooms were also located at this level. On the first floor there is master bedroom with dressing room and bathroom, two bedrooms for children, children’s bathroom and kid’s play room – can be adaptet as needed, eg. in the case of family enlarging.
▼车库被设置在一层，the garage is placed on the ground floor
▼首层平面图，ground floor plan
▼屋顶结构细部，roof structure detail
Project name: House behind the Roof
Architect’s Firm: Superhelix Pracownia Projektowa – Bartłomiej Drabik
Contact e-mail: firstname.lastname@example.org
Completion Year: 2018
Location: Kraków, Poland
Area: 189 m2
Architect: Bartłomiej Drabik
Construction: Marcin Matoga – Konstrukcje Budowlane
Photographer: Bartłomiej Drabik