Competition: Sustainable architecture in Bulgaria – 2011. Chamber of Architects in Bulgaria Award 2011 – Third Prize
Passive House is a building standard that is truly energy efficient, comfortable and affordable at the same time.
Insulation required for achievement of the standard for “passive building”.
U value of the fencing exterior walls U=0.0884 W/(m²K)
U value of floor facing the terrain U=0.0736 W/(m²K)
U value of the roof U=0.0849 W/(m²K)
Southern orientation of volume of the building and the windows, measures against overshadowing the house in winter and overheating in summer.
Triple glazed windows with gas (krypton) between the glass panes U=0.71 W/(m²K) and G>50%
Air-proofness of the building– we use steam permeable and air-proof foils.
Prevention of thermal bridges.
Passive cooling and heating with recovery of the energy from spent air combined with forced ventilation and heat exchange with recuperator.
Solar collector for domestic hot water.
Energy saving electrical appliances and lighting.
Compact shape (minimum ratio of surface area and volume) S/V=0, 65.
Wall Trombe-Michel behind the southern facade.
Design: Ivan Ivanov