Moss On Metal Roof
Metal roofs are often subject to the same types of dirt and debris that you ll find on clay and asphalt roofs.
Moss on metal roof. You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller. Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association. The biggest difference that you ll find is that metal roofs don t tend to stain from blue green algae or grow moss as frequently otherwise you ll see the same types of dirt. What you ll find on a metal roof.
Metal roofs can quickly look dingy and blah. When it rains water flows over the metal strips leaching out moss retardant zinc particles which attach to roof shingles and or tiles to stop new moss from forming. Stop a moss problem from returning by installing strips of zinc or copper coated sheet metal just below the top ridge on both sides of the roof. Roofs generally have a lot of metal in the form of vents gutters drains nails and cables so this can be a plus for most types of roof.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow. Moss begins its life as a spore. Fortunately there are some ways to prevent the these from growing as part of regular roof maintenance and a full metal roof cleaning is an option. Attach strips of zinc 37 the home depot or zinc coated metal flashing strips just below a roof s peak or ridge caps.
Yes even metal roofs are susceptible to these growths. However this is offset by the fact that a metal roof will rarely need to be replaced. Copper is more toxic to moss and algae but zinc. If you re considering a new roof look into having a metal roof added to your home.
The best long term solution. Moss does not stick to metal. How does moss grow on a metal roof. Therefore hire a metal roof repair contractor to remove the moss from the roof and ask him or her to inspect the roof after the moss removal is completed.
Unfortunately the main problem is that a metal roof will cost a great deal more than a new shingle roof. The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water. This method is suitable for both prevention of future or further moss or lichens growth on the roof and for gently treating an otherwise fragile old roof. Installing copper or other metal strips along the ridge of an existing roof will slowly kill off moss or lichens as rainwater washes over the metal and down the roof surface.