A shade sail can provide comfortable shade for a patio while looking lighter than a solid roof. However, many problems arise not from the material, but during the planning phase. If you only consider size, sun position, attachment, and rain after you have already placed your order, you will often have to make compromises later.
You should therefore try to avoid these seven mistakes before buying.
Mistake 1: Just using the patio dimensions
A 4 × 5 meter patio does not automatically require a 4 × 5 meter shade sail. For one thing, you must leave room for tensioning and connecting elements. For another, the position of the sun determines where the shade will actually fall.
First, plan your desired shaded area and the attachment points. You can read how to derive the correct sail dimensions from this at Measuring a shade sail correctly.
Mistake 2: Checking the position of the sun only at noon
Many patios are used primarily in the late afternoon and evening. At these times, the sun is lower, and the shadow shifts significantly to the side. Therefore, observe the area at the times of day you actually intend to sit there.
Our guide on shade sail size and shaded area explains the connection in more detail.
Mistake 3: Looking for attachment points after ordering
The sail should fit the structure – not the other way around. Check beforehand where stable attachment points are possible and whether additional posts are required. The house wall, posts, and connection components must be suitable for the forces generated.
You can find more on this at Attaching a shade sail correctly.
Mistake 4: Forgetting about rain with waterproof material
A waterproof shade sail not only protects against the sun but can also keep off precipitation. To do this, however, the water must be reliably drained away from the surface. An almost horizontal, loosely tensioned installation can promote water accumulation.
Therefore, plan for different attachment heights and a logical drainage point. See also Slope and water drainage for shade sails.
Mistake 5: Choosing the shape solely based on looks
Triangular shade sails look dynamic, but they provide less shade than rectangular ones within similar external dimensions. A trapezoid can make sense for patios of varying widths. An irregular shape, in turn, helps with offset attachment points.
Therefore, choose the shape based on the attachments and the desired shading. The shape comparison for shade sails helps with the decision.
Mistake 6: Underestimating wind load
A tensioned sail provides a large surface area for the wind to catch. The attachment must therefore be suitable for the situation. A removable shade sail should be taken down in good time if strong wind or storms are forecast, unless the specific system is explicitly designed for such loads.
Read our article on this: Shade sails in wind and storms.
Mistake 7: Buying a standard size even though the points are already fixed
Standard sizes are practical if you are free to place your attachment points. On many existing patios, however, the house wall, roof edge, paths, or property boundaries are already fixed. In such cases, it can be difficult to cleanly integrate a rigid standard size.
In these cases, a custom-made sail can make sense. In the article Custom-made or standard size shade sail? we compare both variants.
Practical order for patio planning
- Determine the usage and shaded area.
- Observe the position of the sun during the relevant times of day.
- Determine stable attachment points.
- For waterproof versions, determine water drainage and heights.
- Select the shape.
- Measure distances exactly and account for tensioning space.
- Only then order the shade sail.
When the patio doesn't fit a standard size
If you are planning a patio in Berlin, you can find additional information on tight courtyards, different attachment heights, and an optional installation request on our page Custom-made shade sails in Berlin.
The UNICOVR custom-made shade sail can be configured as a rectangle/square, trapezoid, triangle, or irregular shape to match your planned dimensions. This allows you to start your planning from the actual conditions of your patio, rather than having to adapt them to a fixed sail size.
Conclusion: Good patio shading starts with the usage situation. If you consider shade, attachment, wind, and water drainage together before buying, you can select a much more suitable shade sail.