I've heard mixed things about zinc strips too. A buddy of mine tried them out last year, and he said pretty much the same thing—slowed down the moss b...

Couldn't agree more with you there. It's wild how much comes down to the crew doing the actual work—seen some really high-quality tiles end up looking...

Definitely worth a shot. I had a similar situation once—spent ages stressing, then found out all I needed was one simple form hidden deep in their sit...