Located idyllically 1,568 meters above sea level Corvara is one the five Ladin communities in Val Badia not far from Bozen and in addition to Cortina is one of the most sought after residential areas in South Tyrol. The mountain world of the Dolomites that surrounds the village sees an endless pilgrimage of hikers and snow freaks summer and winter alike. But the hard winter months in particular, with their incalculable masses of snow, present many dangers and risks, especially for house owners.
The lifetime of roof coverings fluctuates considerably and can be greatly reduced over the years by the masses of snow. The consequences often include ruined roof timbering and broken roof elements. Hard covering of a 200 m² detached house roof, for example, weighs between 40 and 55 kilograms per square meter. In other words the roof timbering bears a load of over ten tons in total. Add the snow load to this and you are talking about another 15 to 20 tons bearing down on the roof in the case of new and powder snow with the snow load going up four-fold when it rains. Weighing just 2.3-2.6 kg/m² a PREFA roof comprises only a fraction of the load of a conventional roof (approx. 40-55 kg/m²). This means the roof timbering has a good 10 tons less to bear with a PREFA roof covering. Whereby the PREFA aluminium roof is particularly hardwearing and durable.