For a structure to be sound and secure, the foundation, roof, and walls must be strong and wind resistant. When building a structure, it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is in an area known for inclement weather. The main wind force resisting system of a building is a vital component. While wind load calculations can be difficult to figure out because the wind is unpredictable, some standard calculations can give you a good idea of what a building can withstand.

Wind loading analysis is an essential part of the building process. If wind loading analysis is not done correctly the resulting effects could include collapsed windows and doors, ripped off roofing, and more.

Types of Wind Load Forces on Buildings:

  • Shear Load – Wind pressure that is horizontal and could make a building tilt.
  • Lateral Load – A pulling and pushing horizontal pressure that can cause a
  • building to move off its foundation.
  • Uplift Load – Pressures from wind flow that cause lifting effects.

We use the wind load calculation service from our partners, SFS, to ensure that your next flat roof project is safely protected from wind uplift!

Benefits at a glance

  • Accurate wind load calculations
  • Calculation based on Eurocode 1, EN 1991-1-4
  • Data allied to country-specific national appendices of EN 1991-1-4
  • Design values based on ETAG 006 and SFS wind uplift facility tests
  • Clear, user-friendly written reports containing all relevant detail


  1. Fill in the attached form and details on the terrain type, building, membranes and insulation.
  2. In conjunction with SFS, we will advise on the Wind Load Calculation performance
  3. This information is then used to determine the number of fixings required and the field, perimeter and corner zone requirements

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