In severe cases it may take more than one bleach treatment to kill all of the moss.
Roof moss treatment products.
Moss will loosen over time and may be removed with a leaf blower.
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.
For heaver growth re apply after one month.
Some of the professional moss killing chemicals can keep a roof completely clear of moss for around 3 years without another treatment.
The powder is sprinkled on to a dry roof surface.
If you decide to use a bleach solution or other readymade roof moss treatment protect nearby plants with plastic sheeting.
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.
Dry powder moss killers being hands on products force you to go onto the roof and take stock of the moss problem.
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.
Results are usually seen in 2 3 days.
Chemical solutions can adversely affect the environment as well as damage foundation plantings growing beneath roof overhangs.
Products containing d limonene citrus oil are also effective at killing existing moss.
However dry moss killers can be difficult to dispense evenly and they can leave white streaks that sometimes remain on the roof until several hard.
Hose off and brush all moss loose from your roof shingles.
For best results on a roof first scrape off any excess moss.
For patios and driveways where moss growth is often lighter just apply at the suggested rate.
For treatment use baking soda when rain is minimal and allow several weeks for the moss to die.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Unlike other inferior moss treatments this product won t clog up a watering can or sprayer.
Just dilute and treat the affected area.
Once the roof is moss free an occassional treatment with mossclear will avoid further problems in the future.
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.
With either treatment method some moss will slough off naturally as it dies.
