Recently we learned through Diario El País that has risen the first certified passive house in Spain (PHPP). It is well insulated buildings that save up to 90% of energy consumption. The architect of this project is Josep Bunyesc who graduated from the race for seven years and, after completing a master of sustainable architecture in Belgium, made the prototype with excellent results.
His own residence on the outskirts of Lleida not only incorporates traditional ecological criteria (solar panels, good orientation or insulation), also proposes a construction system, with self-supporting prefabricated wooden elements, to conclude the work within weeks and, of course , building dry. In the Passive House of Bunyesc, the pillar structure is enclosed in recycled wood boards (OSB) which form the interior finish. These interior walls and exterior walls of wood fiber plates compact, nearly 20 inches of wool (28 on deck) keep the temperature of the house.
However, being breathable materials, insulation allows moisture escape while glued OSB boards act as a vapor barrier preventing condensation on the wall. The house is designed to absorb the sun with large windows, solar gain is the first feature of the 10,000 passive houses are already built by Europe and is equipped with insulation to maintain temperature inside. The third point to achieve a sustainable energy ventilation. And Bunyesc housing has a system, based on air ducts and shafts, which does not need to open windows for ventilation and it makes keeping the heat inside the house.
The result is a home temperature of 23 degrees when the thermometer on the street does not reach 10 degrees. When the sun does not shine, solar panels rely on their accumulated energy to offset heat loss.
