In severe cases it may take more than one bleach treatment to kill all of the moss.
Roof moss treatment products.
Results are usually seen in 2 3 days.
For best results on a roof first scrape off any excess moss.
Some of the professional moss killing chemicals can keep a roof completely clear of moss for around 3 years without another treatment.
Hose off and brush all moss loose from your roof shingles.
Dry powder moss killers being hands on products force you to go onto the roof and take stock of the moss problem.
Unlike other inferior moss treatments this product won t clog up a watering can or sprayer.
For heaver growth re apply after one month.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Just dilute and treat the affected area.
Products containing d limonene citrus oil are also effective at killing existing moss.
If you decide to use a bleach solution or other readymade roof moss treatment protect nearby plants with plastic sheeting.
If your roof is suffering from not only moss but other unsightly growths and pollutants our roof clean xtreme60 product could be the answer.
This allows you to view the moss in advance of the removal process that follows.
With either treatment method some moss will slough off naturally as it dies.
Chemical solutions can adversely affect the environment as well as damage foundation plantings growing beneath roof overhangs.
Chemicals that kill the moss or lichens on roofs can be effective as we illustrate below for a roof located in seattle where the homeowner applies corry s moss b ware treatment as a granulated powder sprinkled on the roof along the ridge line.
Never use a pressure washer to clean an asphalt shingle roof as this w ill cause granule loss and very likely premature failure of the roof system.
Opt for the least toxic moss killer.
Manually removing the moss on roof and using household products won t last as long but don t cost as much to do so if you don t mind going up on the roof this might be the option for you.
For treatment use baking soda when rain is minimal and allow several weeks for the moss to die.
With a passion for preserving the beauty of the pacific northwest we use environmentally friendly pet friendly biodegradable products to keep your family and home safe from harsh chemical treatments and removal techniques.
The powder is sprinkled on to a dry roof surface.
Moss will loosen over time and may be removed with a leaf blower.
