The Fabrics:

The outdoor umbrellas are designed from a variety of materials with the most common materials employed for the post being aluminum, wood and in certain instances fiberglass. Canopies are designed from a variety of fabrics which range from Sunbrella Brand acrylic with a three to five year warranty to Olefin or similar feel polyester fabrics with warranty's ranging between 6 month and two years.

For Shade, Not Rain:

Very often people will call a supplier looking for, or stating that the fabric on the umbrella wasn't waterproof and allowed rain to pass through. It is just a total misnomer to anticipate that terrace umbrellas would have waterproof fabric. best garden umbrella in bangladesh

They are designed and sold as a sunshade and therefore do not need waterproof qualities. Apart from the aforementioned fact, it is unrealistic to anticipate a covering that's seven to eight feet above the bottom to help keep the region underneath it dry when rain is blowing or falling at an angle to the bottom in most cases.