UV Protection & WaterproofThe sail awning is made of high-density polyester (PES) waterproof fabric with a PU coating that is tear-resistant and waterproof.Blocks up to 95% of harmful UV rays and direct sunlight exposure."Breathable" fabric allowsair to pass freely and achieve a certain degree of waterproof & cooling. Scientific manufacturingDue to the inherent characteristics of this polymer waterproof fabric, we chose to splice it into shape during production. But please don't worry about water leakage at the splice, we have adopted the latest hot adhesive filmcovering technology at the splicing point.So please note that during installation, the hot glue surface needs to be placed facing downwards. Measurement & InstallationMeasure and clean the area where the Sun visor is to be installed. Leave a margin of 0.5-1 feet between the fixing point and the sunshade sail to install hardware/hooks or ropes. The waterproof shade sail must be installedslightly tilted, 20-40 degree angle and correctly tensioned, so that water does not accumulate. Versatile SolutionWhen you are in backyard, porch, pergola, carport, patio, garden, deck, pool, BBQ areas, ark, sandbox, coffee bar or any outdoor facility, our curved waterproof shade sail is the best waterproof and sunscreen solution, eliminatingmany of your troubles and allowing you to better enjoy life.