FOUNDATIONS

Foundation screws

Faster, safer and more effective!

Foundation screws offer the advantage of being particularly versatile. 

They adapt to all types of soil: the screws are designed to resist corrosion thanks to hot-dip galvanized steel. Screw-mounted structures are therefore perfectly suited for topsoil, clay, chalk, rock (requires pre-drilling), etc. Highly resistant, they are stable, durable, and can withstand extreme vertical and horizontal forces. 

We maintain a large stock of foundation screws, allowing us to shorten project start-up times. 

Another advantage of this solution is that it requires no excavation, digging, or concrete. This makes it a quick and eco-friendly system to implement, as the screw causes no soil damage (no waterproofing) and is entirely reversible. Load bearing is also immediate, and no grounding is required. 

Advantages

Save time and money

  • Reduction in installation time
  • Immediate installation of the screw-in foundation

No impact on the earth

  • No levelling or excavation
  • No concrete, no impact on the environment and no waterproofing of the soil
  • Environmentally friendly

Easy to use on all kinds of soils and in all kinds of weather

  • Topsoil, clay, chalk, rock, concrete, etc.
  • Rain, frost, snow.

Test and verified

  • Screws tested statically and verified by a number of authorities: Socotec, Geotec

Highly resistant

  • Hot-dipped galvanised steel in accordance with the DIN EN ISO 1461* standard
  • Stable and durable over time
  • Extreme resistance to vertical and horizontal pressure

Ball joint base on a stringer

The solution to different elevations

This unique foundation solution is used when digging is impossible (backfill, technical landfills, presence of contractors). SigueSol® ball joint bases are placed on stringers and allow for a 10% incline. As a result, this solution can compensate for any uneven levels in the ground, as well as different elevations.
Thanks to the telescopic device used to adjust the height of the feet on these structures, this kind of solution can adapt to changes in the terrain over time.

Advantages

  • Perfect for CETs
  • Compensates for uneven ground (can incline up to 10%)
  • Compensates for different settling behaviour
  • Two possible adjustments (inclination, height)

Driven support columns

Affordable, quick and easy to install!

This solution is well suited to stable soils. Driven support columns are particularly affordable and quick to install, due to the lack of accessories and the ease of assembly. They are also more resistant to shearing than foundation screws, which allows for a larger distance between columns. It is even possible to use a single support column for smaller structures, which would normally require a minimum of two screws.
Like foundation screws, driven support columns do not have an impact on the soil, and are completely reversible and easy to take apart. Simply pull them out.

However, for hard or corrosive soils, it is better to use foundation screws, which are shorter and require a smaller treatment surface. Screws can also be adjusted, unlike driven support columns.

Advantages

  • Affordable (no accessories, less materials)
  • Fast installation
  • High resistance to shearing, allowing a greater distance between columns
  • Can be used as a single support column
  • No impact on the soil
  • Reversible

Our projects

Belgium, 11 areas on complex terrain, 9.783 MWp

Belgium, carport, 2,059.2 kWp

Netherlands, bus carport, 1.33 MWp

Belgium, carport, 429.03 kWp

France, beam foundations, 5 MWp

France, Ground Screws, 22.7 MWp

Belgium, East/West configuration, 59.68 MWp

France, mixed screw and beam foundations, 9.1 MWp

France, beams, 11.5 MWp

France, screws and beams, 11.87 MWp

France, pre-drilling screws — 3.8 MWp

Belgium, ball joint bases on stringers – 2.6 MWp