HoHo Vienna stands for naturalness, the spruce walls visible on the inside create an especially cosy atmosphere. Evidence for the building’s sustainability has also been provided: Upon its completion, the wooden high-rise was awarded a Gold LEED Certification by the internationally recognised rating system for environmentally friendly buildings. The completion certificate provided by the Austrian Sustainable Building Council (ÖGNB) is equally impressing, awarding HoHo Vienna a score of 924 out of 1,000 points.
Wood is cosy, atmospheric and a natural building material that comes with many benefits: While wood itself is low in weight, it has tremendous weight-bearing capacity, is stable and elastic at the same time, offers versatile uses and benefits room climate, because it can absorb large amounts of moisture and release it back into the environment. Just one example: A fir-wood cube with a length of four centimetres can carry four tonnes of weight. This makes wood stronger than concrete! Despite all these amazing facts, it seemed almost as if wood as a construction material had been forgotten in recent years. HoHo Vienna puts the basis for its construction back into the ‘hands of nature’, trusting in the naturally outstanding properties of wood.
In Austria, forests produce 30 million cubic metres of timber a year, of which 26 million cubic metres are logged. The remaining 4 million cubic metres remain in the forest, continually increasing timber stocks. This means that one cubic metre of timber regrows every second. It takes only one hour and 17 minutes for the entire timber used in the HoHo Vienna project to regrow in our country’s forests.
The use of wood reduces CO₂ equivalents.
Compared to reinforced concrete construction, the use of wood for construction saves some 2,800 tonnes of CO₂ equivalents. This corresponds to approx. 20 million passenger car kilometres or 1,300 years of daily car drives over a distance of 40 kilometres. Studies show that the room air quality inside buildings made of wood is rated very good. In addition, the wood environment also positively impacts quality of life, personal well-being and health.