A downwind fence is being used to simply block the dust particles. One might expect a solid fence to be best in this regard, but what happens is that the wind helps the particles “climb” the fence. When the fence has some porosity the particles get blown against and through the fence. Of the particles that get blown through, most settle out in the zone just past the fence.The best compromise between all these effects for upper fabrics are those from 40% to 34% porosity. More porous means letting more dust through, more solid means the fence becomes more expensive because of the load.
- Solar fencing