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General information

  • Home page
  • Location address
    Huelva, Andalusia, Spain
  • Location country
  • Year of construction
  • Function of building
    Public spaces
  • Degree of enclosure
    Open structure
  • Climatic zone
    Mediterranean - mild winters, dry hot summers
  • Number of layers
  • Type of application of the membrane
  • Primary function of the tensile structure
    • Sun protection


The first open-air commercial centre La Factoria is situated in the region of Huelva, Spain. During spring and summer temperatures exceed 40°C and solar radiation hits directly and very intensively. The demand was to find and realize a possibility of protecting the 8 streets of the commercial centre from the sun and give shadow to its visitors during their stay.
On demand Carpatec designed, produced and installed a total of 64 paraboloids of 9.80m x 4.80m between the buildings of the centre and with a height of 9m, thus protecting the 8 streets and the front sides of more than 200 shops. For the design the software programme Rhino Membrane was used, for the calculation of loads and form finding Forten 3000 was applied. Tensioning ropes and fittings are of stainless steel 316. The membrane is Mehler Valmex FR 700 MEHATOP F – Type I. The welding was made at high frequency. Production and installation were made within only 21 days from receipt of order, thus assuring that the project was ready on the inauguration day of the centre in summer 2009.

Description of the environmental conditions

Material of the cover

  • Cable-net/Fabric/Hybrid/Foil
  • Material Fabric/Foil
    Valmex FR 700 MEHATOP F - Type I
  • Weight (g/m2)

Main dimensions and form

  • Covered surface (m2)

Duration of use

  • Temporary or permanent structure

Involved companies