Copper Sulfate mixed with Chlorine?

[Jim Twist]

Has anyone used Copper Sulfate mixed with Chlorine to clean barrell tile roofs? What does it do to the chems? Does it kill the black mold or something?

 

[Vrollingthunder]

We have been using copper sulfate spread just on the top across both sides of the roof. The afternoon showers washes it down an coats the roof. It is not instant but it does a good job. Hate mixing chemicals together. Anna