blazenut Posted October 5, 2009 Report Share Posted October 5, 2009 What is the point (if any) of the flashing seen below. It was copper, the upper edge wasnt even covered by the shingles above in most cases and it was on both sides of the gable in some locations??? The nail heads were also exposed without roofing cement. Thoughts? Click to Enlarge 83.87 KB Click to Enlarge 78.79 KB Click to Enlarge 68.98 KB Click to Enlarge 90.38 KB Link to comment Share on other sites More sharing options...
Erby Posted October 5, 2009 Report Share Posted October 5, 2009 Maybe an attempt to kill roof shingle algae??? I'd expect the nails to be covered though! Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted October 5, 2009 Report Share Posted October 5, 2009 They are to help prevent moss/ algae growth. I'm sure you've seen how clean older roofs are directly below metal vents, while there is moss or algae elsewhere? Same idea, but these strips don't tend to work well. Also, I consider the holes a problem, but rarely problems as a result. Link to comment Share on other sites More sharing options...
blazenut Posted October 5, 2009 Author Report Share Posted October 5, 2009 How does that work? Is it a reaction with the metal and the water that prevents the algea growth? (just in case im asked...) Link to comment Share on other sites More sharing options...
blazenut Posted October 5, 2009 Author Report Share Posted October 5, 2009 I found this... Thanks... "While inspecting the roof you will notice there are no algae stains directly below the metal flashings, flue pipes or roof vents. Why? Because metal oxides (rust) released when rain hits the metal prevent the formation and growth of algae." Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now