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General information

  • Location address
  • Location country
  • Year of construction
  • Function of building
  • Degree of enclosure
    Open structure
  • Climatic zone
    Temperate - cold winters and mild summers
  • Number of layers
  • Type of application of the membrane
  • Primary function of the tensile structure
    • Rain protection
    • Sun protection


At the secondary school in Lössnitz, a small town in the Ore Mountains, a new route was planned with the redesign of the external premises – `Learn outside with all senses´ - thus the motto. In addition to green areas and playing facilities, an impressive "Classroom in the open" forms the focal point of the overall complex, affectionately created. Constructed as an amphitheatre, it provides space for up to 300 scholars simultaneously. Since 2011, the open air room is protected by a membrane roof made from polyester fabric coated with PVC. With a diameter of 22m, it covers a ground area of approx. 340m2. Due to the high snow load of 160kg/m2, for the size of the roof relatively solid material had to be used, from the so-called Type IV, with high tensile strength and resistance to tear propagation.

Description of the environmental conditions

Material of the cover

  • Cable-net/Fabric/Hybrid/Foil
  • Material Fabric/Foil
    PVC-coated polyester fabric Type IV

Main dimensions and form

  • Covered surface (m2)

Duration of use

  • Temporary or permanent structure

Involved companies