In the planning of roofs, their position security must be demonstrated. For flat roofs, this can be achieved through a wind uplift calculation, in accordance with the regulations of the German Roofing Trade (Flat Roof Guidelines), or with an individual proof.

MF Windsog - Plan mit ausgewiesenen Windsogbereichen


Windsog Flachdach

With MF Windsog, you can perform individual verifications for a variety of country-specific standards. These include:

  • DIN EN 1991-1-4 (Germany)
  • EC 1991-1-4 for Belgium, Great Britain, Italy, Croatia, Luxemburg, Netherlands, Austria, Poland, Romania, Czech Republic, Sweden und Serbia (currently in beta version: Denmark)
  • DIN 1055 Part 4 in the Version from September 1986
  • DIN 1055 Part 4 in the Version from March 2005
  • Professional rules of the German roofing trade
  • Eurocode EC 1991 Part 2-4
  • SIA 160 and SIA 271
  • Austrian Standard 4014-1

After the wind load calculation, the fastening technique can be determined, the roof membrane width can vary, the roof screws can be patterned, and much more.

Fastening methods

  • Seam attachment with plate anchors
  • seam attachment with additional mid-point fastening (halved or thirded)
  • combined seam-field attachment
  • field attachment
  • linear attachment (rails, hook-and-loop systems, etc.)
  • adhesion
  • ballast
  • mixed systems

In addition to the individual verification you will receive an installation guide including a graphical installation plan, the material requirements, and a complete documentation of the calculation. Input for non-rectangular outlined buildings is possible. Deduction areas and structures are taken into account. Upstanding components are automatically provided with a border area.


Available with the MF Translator.