20+ Shade Sail Over Pergola Background. Tensioned shade sail canopies for pergolas & existing shade structures. This canopy blocks 93% of uv a/b rays.
I have a 14' x 14' pergola and have put a 10' x 13' sunshade underneath it. Our shade sails, are outdoor shades based on the same basic technology as a ship's sail. This canopy blocks 93% of uv a/b rays.
Everything was okay until a freak hail storm deposited several hundred lbs of ice on the sail.
Never over tension, tension only by hand, and only tight enough to remove creases. We have sold well over 10 shade sails, also commonly known as sun sails or sun shade sails, are an excellent alternative to a pergola. Tensioning the sail puts a lot of force on the anchor points and poles, of course. Coolaro shades in dark green color 3,6*3,6m.