My flock has a seperate 8' x 8' area for dusting only. Kinda like a human hot tube lol. I use a tarp over it but also added a 2' x 8' strip of black landscapping material to the side of the chain link fence to provide aditional shade in thier dust area in the late evening when it is hotest.
![33744_dsc04344.jpg](https://www.backyardchickens.com/forum/uploads/33744_dsc04344.jpg)