A layer of green moss might look cozy and rustic atop your house but it can be bad news for your roof.
How do i clean moss from my 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.
Spreading moss can quickly upholster to roof surfaces filling in voids between shingles and tiles and reaching under and lifting up roofing materials.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
If mossy foliage covers your roof it s time to get cleaning.
That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
Moss grows in areas untouched by sun so it can develop at a speedy pace on tree shaded and north facing roofs.
If you do decide to use a power washer to clean the moss off your roof make sure the pressure washer is set on the lowest pressure setting to avoid damaging your roof.
To keep your roof safe and sightly choose a cool overcast day mix a cleaning solution spray it onto your roof then rinse after 20 minutes.
Today s homeowner states that algae stains can be removed by cleaning though they usually return.
Using a power washer on a roof is a personal choice however you can read my guide called should i use a power washer on my roof to learn about any potential problems caused by.
7 protect nearby shrubs and lawn with plastic tarps.
Some of this growth including the stains from algae spores are cosmetic but others such as moss cause costly damage to your roof.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
Space between the strips.
While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles.
To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
8 spray the cleaning solution onto the shingles using a garden sprayer.
Both tasks work hand in hand to ensure the longest possible lifespan for your roof.