1) Decide the Area
Before deciding on anchor points, first clarify the area you want to shade. Remember that the sun moves across the sky throughout the day, changing the angle and position of the shadow. To make sure that the area you want to shade can always be covered within shadow, it is recommended to position the anchor points outside of desired shaded area, making the points further apart and leaving a larger space between the anchor points. This will help compensate for any coverage loss due to the sail's curved edges and the shifting position of the shadow.
2) When You Tilt Your Sail
The angle at which your shade sail is installed plays a critical role in its performance. Here are some factors to keep in mind:
- Tension and Angle
The sail should always be installed at an angle. Height variation between anchor points is crucial for proper water drainage. The direction of the drag force also plays a significant role — an ideal installation will tension the sail diagonally to evenly distribute the stress and prevent sagging.
- Consider the Prevailing Wind Direction
Tilt your shade sail at a direction that allows wind to flow over it. This helps minimize strain on the fabric and prevents it from catching wind in a way that could cause damage.
- Water Drainage Point
The lowest anchor point should be positioned where you want the water to drain. Make sure to direct water towards a safe drainage area.
3) Find the Possible Anchor Points
When it comes to selecting anchor points, the following options should be considered:
- Utilize Existing Structures
Leverage any nearby structures such as walls, roofs, or trees to support your shade sail. These structures can serve as natural anchor points that help reduce installation costs and effort. Before confirming your anchor points, however, ensure the structures are sturdy enough to withstand the tension.
- Support Poles
If there are not enough natural anchor points available, you may need to install one or two support poles as additional anchor points. Since support poles could be more susceptible to bending under high tension compared to natural structures, it’s recommended to secure at least two corners to natural structures for better stability.
4) Conclusion
By carefully considering the area, anchor points, wind direction, water drainage, and tension when installing your shade sail, you’ll ensure that it performs effectively while standing up to the elements. Proper installation not only enhances the longevity of your shade sail but also optimizes its functionality for years to come.