Sails Canopies. Some are designed to overlap, thereby adding some form and style to their function. This shade system is based on the basic technology as a ship’s sail. A sail canopy has a flexible material tensioned between several anchor points. They are cheap and easy to set up and are usually common in public gathering places where strong sun radiation makes long stays in the open sun uncomfortable and dangerous due to sunburn and risk of skin cancer. Originally canopy shade fabric, like all fabrics exposed to sunshine, were degraded by UV light. Today, UV inhibitors are incorporated into the shade cloth during its production.
Sail Canopies are usually tensioned using a stainless steel turnbuckle or a pulley system secured at each corner of the sail. For a permanently fixed sails, the turnbuckle is more suitable for fixing the canopy since it allows more tension to be applied. For sails that are used occasionally, the pulley system is more appropriate as it can be set up and taken down in a matter of minutes. For private or domestic applications of sail canopies, quick release “snap hook” at each corner is most recommended. This allows the sail canopy to be quickly taken down during the winter season or in high wind conditions. The right set up requires that a considerable tension be put on the sail to allow it to take its right shape and prevent flapping in the wind. It is also important to make sure that the mounting points are both substantial and secure. This will allow them to accept the required initial tension and to absorb the pressure created by wind gusts hitting the sail at high speed.