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Sumit Singhal
Sumit Singhal
Sumit Singhal loves modern architecture. He comes from a family of builders who have built more than 20 projects in the last ten years near Delhi in India. He has recently started writing about the architectural projects that catch his imagination.

Kebony clads Sweden’s first round passive house by Developers Simone Kreutzer & Tommy Wesslund

 
April 16th, 2016 by Sumit Singhal

Article source: Developers Simone Kreutzer & Tommy Wesslund

Developers Simone Kreutzer and Tommy Wesslund have recently completed work on an eco-home in Sweden, clad in Kebony. Villa Circuitus, meaning ‘a going around’ in Latin, is a spacious, circular 175 sq. m passive house containing four bedrooms and open plan kitchen and dining area.

Image Courtesy © Anders Bergon

Image Courtesy © Anders Bergon

  • Architects: Developers Simone Kreutzer & Tommy Wesslund
  • Project: Kebony clads Sweden’s first round passive house
  • Location: Sweden
  • Photography: Anders Bergon

Image Courtesy © Anders Bergon

Image Courtesy © Anders Bergon

The Villa Circuitus was built to meet passive house requirements, with strict environmental demands in terms of design and construction materials. Both Simone Kreutzer and Tommy Wesslund are certified passive house experts with special expertise in energy and ventilation, knowledge they brought to the design of their latest project. They were the creative minds behind this project and cooperated with Nina Sandahl from SAJT Arkitektstudio to design the bespoke home, Sweden’s first circular passive house.

Image Courtesy © Anders Bergon

Image Courtesy © Anders Bergon

The house has a 35 sq. m veranda on the second story, from which residents can view the beautiful landscape. Surrounding this veranda is a railing with integrated solar panels, which make the home self-sufficient for most of the year. The round shape is carefully designed to expose the smallest surface possible to the outdoor air and thus reduces heat loss. Large windows around the perimeter of the building allow lots of natural light to illuminate the property throughout the day and also help heat the building. Every window is custom made to retain twice as much heat as normal windows and the air circulating through the house is kept at a steady temperature by a two stage heat exchanger which passes the air through a ground based water heater then a post-heater. This two stage process efficiently warms the air in winter to a temperature of 18.5C – 20.5C and cools it in summer so the air circulating is 16C – 17C.

Image Courtesy © Anders Bergon

Image Courtesy © Anders Bergon

Alongside these high-tech elements is the widespread use of natural, environmentally friendly construction materials. Recycled paper and glass are used throughout the structure and the whole house is built on a wooden frame with Kebony cladding. Kebony is a modified softwood that acts as a sustainable alternative to tropical hardwood. Developed in Norway, the Kebony technology is an environmentally friendly, patented process, which enhances the properties of fast growing sustainable softwood with a bio-based liquid. By impregnating the wood with furfuryl alcohol, the wood’s cell wall is polymerized resulting in greatly improved durability and dimensional stability. Kebony therefore offers the performance qualities of a tropical hardwood, such as teak or mahogany, without the environmental damage.

Image Courtesy © Anders Bergon

Image Courtesy © Anders Bergon

The balancing of modern and natural elements can also be seen in the external aesthetic of the house which interweaves beautiful Kebony cladding with striking orange panels around the windows. The color of Kebony wood mellows over time from a rich brown to a silver grey patina, giving the whole structure a quiet, natural look, while the contrasting orange panels emulates the warmth and comfort emanating from the interior. The Kebony cladding helps the passive house to complement its natural surroundings, blending in with the rocky landscape, while also offering fantastic protection from the cold weather.

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Category: House

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