When it rains very small concentrations of zinc carbonate wash down the roof and prevent the growth of new moss.
How to keep moss off roof.
The rain water will take minute quantities of zinc off these strips and the flow of this zinc solution over the roof will prevent any moss from getting started.
When the rain water passes over the copper flashing a little copper gets mixed into the rain.
If your moss has dried out take the opportunity to have a roofer remove the moss from the roof.
How to prevent roof moss and algae.
To remove moss you first have to kill it.
How to remove moss from a roof.
Moss can be kept off of roofs by attaching zinc strips near the top of the roof.
Happily there are preventive measures you can use to keep your roof moss free.
Trim branches overhanging your roof keep gutters free of debris and regularly remove moisture collectors such as leaves branches and seedpods that pile up on the roof and encourage moss to grow.
Moss growing on a roof lifts the shingles and allows water to seep underneath and rot the roof deck.
If your roof has sprouted a moss infection you can remove it before it becomes serious enough to impact the performance of your roof.
The trick is to put the flashing under.
The copper will change color to a green like grey but that s a lot better looking than all that moss and algae.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
Which acts as a poison to the moss and algae.
Scrape off the moss.
Climb up to the roof and begin scraping off dead moss from the shingles using a putty knife or painter s 5 in 1 tool and working from the bottom up.
Keeping moss off of shingles.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
Use a solution of bleach vinegar or dish soap for this.
Remove moss in just 3 steps and keep it off for good.
Moss is tough and typically you will not be able to remove it by hand.