Attaching a sun sail: what really matters
The most common cause of damage to shade sails is not the fabric, but the point from which it hangs.
Why the forces are underestimated
A tensioned sail looks light. As soon as the wind gets underneath it, it acts like a wing and pulls upward and to the side at every attachment point with considerable force. A wall plug in an insulated facade or a hook in a pergola beam rarely holds this long-term.
What provides support
Load-bearing walls made of concrete or solid brick, steel supports, and properly dimensioned foundations. Where none of these are available, we install our own supports or Krinner screw foundations – these are screwed into the ground in a few minutes, are immediately load-bearing, and can be removed without a trace. We use them for our tiny houses, among other things.
Thermal insulation is the classic case
With an insulated facade, the load must be transferred through the insulation into the structural shell. There are mounting systems for this. Anyone who instead puts long screws into the insulation will get cracks in the plaster with the first gust of wind.
Don't forget the incline
A sail needs a slope so that rainwater can run off. If water collects in the middle, the weight pulls on the fabric and at all attachment points. We therefore plan for the height offset from the very beginning.
Why we come for an on-site measurement first
You can see which points are load-bearing at the house, not over the phone. During the measurement, we clarify mounting, incline, size, and whether additional supports are necessary – only then do we create a quote that will actually hold.
To the range: Shade sails
