HillHaus is a super efficient energy passive house with a footprint of 330 sq ft and a usable area of 215 sq ft, designed for weekend relaxation. Surrounded by hills, this house is a small oasis of serenity, ideal for those who want to run away from the daily stress of big cities.
There is no need for a central heating or cooling system, but only an air recirculating system that has a double role. Hence, every 10 minutes it changes the indoor air with a fresh one, ensuring in this way the energy transfer between the two air flows, but at the same time eliminating the vicious air. Thus, temperature and humidity will always be kept within the comfort range.
For very cold winter periods there is a 1000 watt radiator that can work, but very rarely and electric underfloor heating in the bathroom. Thus, the heating / cooling costs of the house are lowered by 90% compared to a conventional building. HillHaus doesn’t need a conventional heating or cooling system.
Taking into consideration that is a small house, the room was cleverly divided and looks bigger than it really is. A sofa can turn into a generous bed and the dining area is bathed all day in natural light, due to generous windows. Furthermore, the corner dedicated to the preparation of light snacks or morning coffee was designed in a minimalist manner, whilst voice-controlled Hi-Fi system animates the atmosphere by simple verbal notification.
In use from
High end materials and finishes
All materials were carefully chosen to provide a high level of perceived quality and a cozy ambient. Other than triple glazing, top finishing materials were chosen: 3-layer engineered oak flooring for the room and Ruschita marble in bathroom. The apparent layer of the walls is made of MgO boards, also a natural material, the coating being made with silicate paint.
In harmony with nature
HillHaus meets following criteria for a building to be considered a passive house:
– Space Heating Demand (not to exceed 15kWh annually OR 10W (peak demand) per square metre of usable living space);
– Space Cooling Demand (roughly matches the heat demand with an additional, climate-dependent allowance for dehumidification);
– Primary Energy Demand (not to exceed 120kWh annually for all domestic applications (heating, cooling, hot water and domestic electricity) per square meter of usable living space);
– Airtightness (maximum of 0.6 air changes per hour at 50 Pascals pressure)
– Thermal Comfort (thermal comfort must be met for all living areas year-round with not more than 10% of the hours in any given year over 25°C).
HillHaus contruction uses straw insulated prefabricated wall panels.
The exterior wall contains many layers, from inside to outside:
– interior finish;
– MgO board;
– wood spruce lathing;
– anti-condens foil
– anti-root mesh;
– Shou Sugi Ban exterior cladding with linseed oil.