Submitted By
0 expert, 0 community

I've read about using zinc on roofs to prevent and also to get rid of existing stains. This is known as electroalaysis. I have some questions about this.
#1 Does it work?
#2 How is it sold?
#3 Where is it purchased?
#4 Where is it installed on the roof?
#5 How is it installed?
#6 How much is needed?
Thank you for your time!!!! Please answer by email.

Post new answer

Type the characters you see in this picture. (verify using audio)
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.