It is only advisable to use a pressure washer because you no longer need to worry about the condition of the old roof.
How to remove moss from your roof shingles.
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.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
Both tasks work hand in hand to ensure the longest possible lifespan for your roof.
8 spray the cleaning solution onto the shingles using a garden sprayer.
Again many years of roof life are lost to power washing.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
Hose off and brush all moss loose from your roof shingles.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
Letting the moss slowly roll down your roof and into the gutters just clogs up the gutters downspouts and underground drains.
Your roofers will need to remove all the shingles on your old roof or they may need to remove the largest chunks of moss with a pressure washer and then apply the new roof.
After you have killed the moss on your roof you must remove the dead moss manually or it will act like a sponge and soak up water further promoting decay.
There are many ways to remove moss that tends to grow in shaded areas.
Less easy but of far greater importance is the next step of removing the dead moss from the roof.
In my experience kill the moss let it die and in a few weeks manually remove the dead moss with a soft cedar shingle it s not easy but it works.
You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller.
Working safe smart and strategically guarantees your moss removal operations will run smoothly.
Space between the strips.
7 protect nearby shrubs and lawn with plastic tarps.