Standard shade cloth lets some rain through; PVC sails are fully waterproof.
Quality shade cloth blocks a high percentage of UV; the exact figure depends on the fabric and colour.
Many residential sails don't, but some sites and sizes do. Check with your local council before installing.
In very high winds it's a good idea to release the tension or take the sail down.
Quality fabric usually lasts many years with good tensioning.
Fill in the form and we'll get back to you. No obligation.