People always ask me what’s the best outdoor American flag? Well, I always answer “that depends”. You see each flag material works better in different environments. So I then ask a few more questions like: Where are you flying the American flag, on a flagpole? Off the side of a house, indoors outdoors, in the shade, in the open by a lake, in a field, in the city, in the country. I may also ask, how high up, how low to the ground, all these variables have effects on the flag. My experience, tells me that 90% of the American people can fly the nylon American flag with great results in any location. The nylon is light but strong. It has great fly ability in the slightest breeze and it can maintain its construction even in the strongest of winds.
The other 10% will do better to fly a woven 2 ply polyester American flag. This flag is heavy and strong. However, it needs a strong breeze to get it moving. This is perfect for large flags on larger flagpoles, which generally get higher winds. Again location is everything. Both, the nylon flag and the polyester American flags have high fade resistance capabilities (again depends on where the flag is flown).
One place I would not fly a polyester American flag is off the side of a house or building. House mounted flagpoles, which already have the flag in a flying position, risk a heavy rain soaked flag, pulling the bracket from the wall.