Zillow Advice RSS: Question-Discussion-Guide,Home Improvement,Town of Lockport- NY http://www.zillow.com/advice/Town-of-Lockport-NY/home-ownership-home-improvement/question-discussion-guide/ Zillow Advice search results | Zillow Real Estate moss on roof http://www.zillow.com/advice-thread/moss-on-roof/286435/ I have a lot of moss on my roof due to having very large trees around my house. I power washed it last year, but it seems to have come back in full force.&nbsp; Trimming back the trees is pricey. I am looking for alternatives. I have had a few people tell me to install a zinc strip at the peak of my roof, and others have told me to sprinkle a bag of builder's lime over the moss. However, I cannot find a store with either of these items. Any other ideas, or should I just power wash it again?<br \><br \>1 reply Thu, 08 Oct 2009 13:06:00 GMT http://www.zillow.com/advice-thread/moss-on-roof/286435/ 2009-10-08T13:06:00Z